CN207354091U

CN207354091U - Self-resetting can limit the high back-pressure A circuit generator voltage controllers of frequency overcurrent protective

Info

Publication number: CN207354091U
Application number: CN201721277569.8U
Authority: CN
Inventors: 杨明
Original assignee: Foshan China Micro Electric Technology Co Ltd
Current assignee: Foshan China Micro Electric Technology Co Ltd
Priority date: 2017-10-02
Filing date: 2017-10-02
Publication date: 2018-05-11
Anticipated expiration: 2027-10-02

Abstract

A kind of Self-resetting can limit the high back-pressure A circuit generator voltage controllers of frequency overcurrent protective, including：The input terminal that sampling unit 1 passes through 2 connecting valve control unit 3 of threshold cell；3 output terminal connecting valve unit of switch control unit, 4 input terminal, 10 second end of common port connection reset unit, positive terminal connection cathode D+/B+；4 ground terminal of switch element ground connection, output terminal are excitation end F；Afterflow unit 5 connects excitation end and cathode；Feedback unit 6 connects 3 input terminal of excitation end and switch control unit, and 7 cathode of state recognition unit termination cathode, input terminal connects excitation end by resistive module 8, output terminal connects 9 input terminal of timing unit；9 output terminal of timing unit connection reset unit, 10 first end, the 3rd end of timing unit 9 and the 3rd end of reset unit 10 ground connection；Capacitive module 11 connects 7 input terminal of 10 first end of reset unit and state recognition unit；Feature is simple in structure, protection is perfect, frequency characteristic is good, highly reliable.

Description

Self-resetting can limit the high back-pressure A circuit generator voltage controllers of frequency overcurrent protective

Technical field

The utility model belongs to automobile current generator technical field, more particularly to Self-resetting can limit the high back-pressure of frequency overcurrent protective A circuit generator voltage controllers.

Background technology

Automobile current generator is due to the complexity of its operating condition, and the requirement to generator voltage controller is very high, these will Ask and essentially consist in：

1st, excitation overcurrent protection：Generator due to power, build pressure rotating speed, the requirement in terms of transformation efficiency, automobile current generator Main use brushes hair motor, due to the electric leakage of carbon brush powder, has the reason such as brush or brushless generator Exciting Windings for Transverse Differential Protection short circuit to cause electricity It is common technical problems to press adjuster exciting power pipe overcurrent, therefore carries out overcurrent protection to dynamo governor and be even more important.

2nd, temperature-resistance characteristic：Automobile current generator is located at enging cabin, is toasted be subject to engine fever, and environment temperature is very high, And generator also a large amount of fevers in itself, this proposes built-in voltage regulator the temperature-resistance characteristic requirement of higher.

3rd, excitation frequency scope：Excitation frequency is too low, is such as less than 30 hertz, will make engine output voltage ripple coefficient mistake Greatly, two excitation frequencies are excessive, are such as higher than 1000 hertz, its internal power tube switching loss mistake when will make voltage regulator operation Greatly, generate heat excessive, easily damaged, and excitation frequency is excessive low frequency core is worked in outside ideal characterisitics, increase vortex Loss, reduce efficiency.

4th, the restriction of overtime excitation：Conventional regulator basic circuit dependent on sample circuit node at filter capacitor and The RC time constants that sample resistance is formed reduce excitation frequency, some are also improved to the filtering of π types, but cannot all take into account excitation frequency Rate, excitation waveform, excitation delay restrict (i.e. to the restriction of over-pressed overtime excitation) this three, often lead to generator control lag Or excessively adjust.

5th, circuit voltage endurance：For domestic and international portion voltage regulator chip using integrated antenna package form, its is pressure-resistant Value is generally below 60~70V, and many chip inlet pressure voltages are installed on domestic generator, Hen Duoshi in 40V, such adjuster Waiting can be because generator caused overvoltage surge in throw load causes the breakdown damage of the chip in adjuster, and import Regulator chip is expensive.

6th, circuit anti-interference characteristic：For electronic circuit, the electromagnetism interference of the simple circuit of transistor discrete component Characteristic is higher than ordinary numbers chip, divides as the anti-interference for the derivative circuit that common and/or/not circuit and combinations thereof goes out is less than Vertical device, and the noiseproof feature of common microcontroller is less than gate circuit, the dedicated preferable general-purpose chip valency of noiseproof feature Lattice are more expensive and are not suitable for the general-purpose chip of voltage regulator characteristic and functional requirement, and therefore, the general common recognition of industry is：It is single Piece machine adjuster is higher than specially again not as anti-interference, that is, reliability of Special regulator logic chip reliability height, two discrete devices With adjuster logic chip.

7th, circuit job stability：Its work of general special or general-purpose chip starts voltage in 5V or so, many import tune Save device chip and start voltage in more than 7.5V, such chip is in the case of the more power shortage of storage battery, it is impossible to ensures generator Very fast to enter power generation adjustment state, particularly various chips is universal poor, and the method designed with change chip periphery may It can prevent many products from meeting voltage regulator diversity and work operating mode complexity, generator operation can be made unstable.

8th, complexity in circuits：The adjuster designed by digit chip or microcontroller, its IC internal hardwares structure, software etc. It is more complicated, not only increase cost, also due to complexity reduces reliability.

9th, component number needed for circuit and occupied area：The prior art with the adjuster circuit that discrete device is designed without Method meets the overcurrent protection of voltage regulator, temperature-resistance characteristic, excitation frequency, excitation delay restriction, high back-pressure, anti-interference, Gao Ke By the technical need of property etc., even if designing, often because circuit structure is excessively complicated, its element is more, area occupied Excessive, the narrow and small confined space can not be accommodated compared with multicomponent (generally within 2.5X3 square millimeters) in governor body, and Element more multiple faults rate is higher.

10th, generator specialized voltages adjust IC chip：Design for hybrid digital-analog integrated circuit Special regulator chip For, first, its design cost is higher；Second, its Array analysis cycle length and cost higher；Third, hair is filled before no multi-series In the case that motor manufacturing enterprise is approved with high-volume demand, small lot experiment and production are obviously well beyond investment budgey；Four It is the production of general integrated antenna package enterprise for temperature requirement particularly harsh regulator chip and power chip Technique cannot reach technical requirements.

Therefore, the detection of twenties years to thousands of kinds of more car systems, domestic and international generator voltage controller products point is passed through Analysis, the generator techniques case with reference to vehicle maintenance and repair enterprise collect, inlet regulator chip characteristics comprehensive detection data, for many years section The process with teaching practice is ground, is summed up：The adjuster of the prior art cannot meet above-mentioned every technical requirements as much as possible, Make automobile current generator and voltage regulator infant mortality higher, economic loss is caused to user and generator enterprise.

Utility model content

The purpose of this utility model is that by that can meet overcurrent protection, temperature-resistance characteristic, excitation frequency as much as possible Rate, excitation delay restriction, high back-pressure, jamproof generator particular job environmental condition demand, there is provided be adapted to domestic and international spy It is not the high reliability voltage regulator of China's automobile current generator market demand.

First aspect according to the utility model, there is provided the first Self-resetting can limit the high back-pressure A electricity of frequency overcurrent protective Road generator voltage regulator, it is characterized in that including sampling unit 1, threshold cell 2, switch control unit 3, switch Unit 4, afterflow unit 5, feedback unit 6, state recognition unit 7, resistive module 8, timing unit 9, reset unit 10 and capacitive Module 11, wherein：

The sampling unit 1 has positive terminal, negative pole end and output terminal,

The threshold cell 2 has input terminal and output terminal,

The switch control unit 3 includes input, output end, common port and positive terminal,

The switch element 4 has input, output end and ground terminal,

The afterflow unit 5 is fly-wheel diode,

The feedback unit 6 includes input terminal and output terminal,

The state recognition unit 7 has positive terminal, input terminal and output terminal,

The resistive module 8 is the resistance circuit with current-limiting resistance characteristic,

The timing unit 9 has input, output end and the 3rd end,

The reset unit 10 has first end, second end and the 3rd end,

The capacitive module 11 is the capacitive circuit with charge-discharge characteristic,

The positive terminal of the sampling unit 1 connects positive pole (D+/B+), the negative pole end of the generator voltage controller Ground connection (i.e. power cathode E), the output terminal of the sampling unit connect the input terminal of the threshold cell 2；

The output terminal of the threshold cell 2 connects the input terminal of the switch control unit 3,

The output terminal of the switch control unit 3 connects the input terminal of the switch element 4, the switch control unit 3 Common port connect the second end of the reset unit 10, the positive terminal connection power generation of the switch control unit 3 is electromechanical The positive pole (D+/B+) of adjuster is pressed,

The ground terminal ground connection of the switch element 4, the output terminal of the switch element 4 are adjusted as the generator voltage The excitation con-trol end F of device, for controlling the cold end of A circuit generator excitation windings,

The cathode of the fly-wheel diode connects the output terminal of the switch element 4, the anode of the fly-wheel diode connects The positive pole (D+/B+) of the generator voltage controller is connect,

The input terminal of the feedback unit 6 connects output terminal, the output terminal of the feedback unit 6 of the switch element 4 The input terminal of the switch control unit 3 is connected,

The positive terminal of the state recognition unit 7 connects the positive pole (D+/B+) of the generator voltage controller, institute The input terminal for stating state recognition unit 7 connects the output terminal of the switch element 4 by the resistive module 8, the state is known The output terminal of other unit 7 connects the input terminal of the timing unit 9,

The output terminal of the timing unit 9 connects the first end of the reset unit 10, the 3rd end of the timing unit 9 Positive pole is grounded or connects,

The 3rd end ground connection of the reset unit 10,

One end of the capacitive module 11 connects the first end of the reset unit 10, the other end of the capacitive module 11 Connect the input terminal of the state recognition unit 7 or the output terminal of the connection switch element 4.

Frequency overcurrent protective high back-pressure A electricity can be limited it is further preferred that additionally providing and belonging to the Self-resetting of the first type Road generator voltage regulator, its be characterized in that including,

The sampling unit 1 includes resistance R1, R2 and capacitance C1, and the resistance R1 and R2 is connected in series, the resistance R2 In parallel with capacitance C1, the other end of the resistance R1 is connecting the power supply of generator voltage controller just for the positive terminal of sampling unit Pole (D+/B+), the other end of the resistance R2 is grounded (i.e. power cathode E) for negative pole end, resistance R1 and R2 are connected in series node The input terminal of threshold cell 2 is connected for the output terminal of sampling unit；

The threshold cell 2 includes zener diode D1, its anode is the input terminal of threshold cell 2, it is just extremely defeated Outlet connects the input terminal of the switch control unit 3,

The switch control unit 3 includes triode Q1 and the base stage of resistance R3, the triode Q1 are controlled as switch The input terminal of unit 3, the collector of the triode Q1 are connected with resistance R3, and the triode Q1 collectors are also as switch control The input terminal of the output terminal connecting valve unit 4 of unit 3 processed, the transmitting extremely common port connection reset unit of the triode Q1 10 second end, the other end of the resistance R3 is as the positive terminal connection generator voltage controller of switch control unit 3 Positive pole (D+/B+),

The switch element 4 includes power field effect pipe Q2, and the source electrode of the power field effect pipe Q2 is as switch element 4 The drain electrode of ground terminal, the power field effect pipe Q2 being encouraged as output terminal, that is, generator voltage controller of switch element 4 Magnetic control end F, for controlling the cold end of A circuit generator excitation windings,

The afterflow unit 5 is sustained diode 2, the output of the cathode connecting valve unit 4 of the sustained diode 2 End, the anode of the sustained diode 2 connect the positive pole (D+/B+) of generator voltage controller,

One end that the feedback unit 6 includes feedback resistance R4, the feedback resistance R4 connects for the input terminal of feedback unit 6 Output terminal, the feedback resistance R4 other ends for connecing switch element 4 are defeated for 6 output terminal connecting valve control unit 3 of feedback unit Enter end,

The state recognition unit 7 includes triode Q3, the cathode of the triode Q3 transmittings extremely state recognition unit 7 The positive pole (D+/B+) of end connection generator voltage controller, the base stage of the triode Q3 are the defeated of state recognition unit 7 Enter the current collection extremely state recognition unit 7 of end by the output terminal of resistive 8 connecting valve unit 4 of module, the triode Q3 Output terminal connects the input terminal of timing unit 9,

The timing unit 9 includes capacitance C2 and resistance R6, one end of the capacitance C2 are connected with resistance R6, connecting node As the input terminal of the timing unit 9, the other end of the resistance R6 connects reset unit as the output terminal of timing unit 9 10 first end, the other end of the capacitance C2 are grounded or connect positive pole as the 3rd end of the timing unit 9,

The reset unit 10 includes first end of the base stage of triode Q4, the triode Q4 as reset unit 10, Second end of the collector of the triode Q4 as reset unit 10, the emitter of the triode Q4 is as reset unit 10 The 3rd end ground connection,

It is the first end of one end connection reset unit 10 of the capacitive module 11 including capacitance C3, the capacitance C3, described The capacitance C3 other ends connect the input terminal of the state recognition unit 7 or the output terminal of the connection switch element 4.

Second aspect according to the utility model, there is provided second of Self-resetting can limit the high back-pressure A electricity of frequency overcurrent protective Road generator voltage regulator, it is characterized in that including sampling unit 1, threshold cell 2, switch control unit 3, switch Unit 4, afterflow unit 5, feedback unit 6, state recognition unit 7, resistive module 8, timing unit 9, reset unit 10 and capacitive Module 11, wherein：

The threshold cell 2 has input terminal and output terminal,

The switch control unit 3 includes input, output end and common port,

The switch element 4 has input, output end and ground terminal,

The afterflow unit 5 is fly-wheel diode,

The feedback unit 6 includes input terminal and output terminal,

The timing unit 9 has input, output end and the 3rd end,

The reset unit 10 has first end, second end and the 3rd end,

The output terminal of the switch control unit 3 connects the input terminal of the switch element 4, the switch control unit 3 Common port connect the second end of the reset unit 10,

The output terminal of the timing unit 9 connects the first end of the reset unit 10, the 3rd end of the timing unit 9 The output terminal of the switch control unit is connected,

The 3rd end ground connection of the reset unit 10,

Frequency overcurrent protective high back-pressure A electricity can be limited it is further preferred that additionally providing and belonging to the Self-resetting of second of type Road generator voltage regulator, it is characterized in that,

The sampling unit 1 includes resistance R1, R2 and capacitance C1, and the resistance R1 and R2 is connected in series, the resistance R2 In parallel with capacitance C1, the other end of the resistance R1 is connecting the power supply of generator voltage controller just for the positive terminal of sampling unit Pole (D+/B+), the other end of the resistance R2 is grounded (i.e. power cathode E) for negative pole end, the resistance R1 and R2 is connected in series Node connects the input terminal of threshold cell 2 for the output terminal of sampling unit；

The threshold cell 2 includes zener diode D1, its anode is the input terminal of threshold cell 2, it is just extremely defeated The input terminal of outlet connecting valve control unit 3,

The switch control unit 3 includes triode Q1, and the base stage of the triode Q1 is as the defeated of switch control unit 3 Enter end, the input terminal of the collector of the triode Q1 as the output terminal connecting valve unit 4 of switch control unit 3 is described The second end of the transmitting of triode Q1 extremely common port connection reset unit 10,

The switch element 4 includes power field effect pipe Q2, and the source electrode of the power field effect pipe Q2 is as switch element 4 Ground terminal, the power field effect pipe Q2 drain electrode as switch element 4 output terminal, that is, generator voltage controller excitation Control terminal F, for controlling the cold end of A circuit generator excitation windings,

The afterflow unit 5 is sustained diode 2, the output of the 2 cathode connecting valve unit 4 of sustained diode End, the positive pole (D+/B+) of 2 anode of sustained diode connection generator voltage controller,

One end that the feedback unit 6 includes feedback resistance R4, the feedback resistance R4 connects for the input terminal of feedback unit 6 Output terminal, the feedback resistance R4 other ends for connecing switch element 4 are single for the output terminal connection switch control of feedback unit 6 The input terminal of member 3,

The state recognition unit 7 is including the transmitting extremely state recognition unit 7 of triode Q3, the triode Q3 just The positive pole (D+/B+) of extreme connection generator voltage controller, the base stage of the triode Q3 are state recognition unit 7 Input terminal, which is connected to the output terminal of switch element 4, the triode Q3 current collections extremely state by the resistance R5 of resistive module 8, to be known The input terminal of the output terminal connection timing unit 9 of other unit 7,

The timing unit 9 includes capacitance C2 and resistance R6, one end of the capacitance C2 are connected with resistance R6, connecting node As the input terminal of timing unit 9, the other end of the resistance R6 is as the output terminal connection reset unit 10 of timing unit 9 First end, the other end of the capacitance C2 are connected as the 3rd end of the timing unit 9 with the triode Q1 collectors,

The reset unit 10 includes first end of the base stage of triode Q4, the triode Q4 as reset unit 10, Second end of the collector of the triode Q4 as reset unit 10, the emitter of the triode Q4 reset list as described The 3rd end ground connection of member 10,

The first end of one end connection reset unit 10 of the capacitive module 11 including capacitance C3, the capacitance C3, The capacitance C3 other ends connect the input terminal of the state recognition unit 7 or the output terminal of the connection switch element 4.

The third aspect according to the utility model, there is provided the third Self-resetting can limit the high back-pressure A electricity of frequency overcurrent protective Road generator voltage regulator, it is characterized in that including sampling unit 1, threshold cell 2, switch control unit 3, switch Unit 4, afterflow unit 5, feedback unit 6, state recognition unit 7, resistive module 8, timing unit 9, reset unit 10 and capacitive Module 11, wherein：

The threshold cell 2 has input terminal and output terminal,

The switch element 4 has input, output end and ground terminal,

The afterflow unit 5 is fly-wheel diode,

The feedback unit 6 includes input terminal and output terminal,

The timing unit 9 has input, output end and the 3rd end,

The reset unit 10 has first end, second end and the 3rd end,

The output terminal of the switch control unit 3 connects the input terminal of the switch element 4, the switch control unit 3 Common end grounding, the positive terminal of the switch control unit 3 connects the positive pole (D+/B of the generator voltage controller +),

The input terminal of the feedback unit 6 connects the 3rd end of the reset unit 10, the output terminal of the feedback unit 6 The input terminal of the switch control unit 3 is connected,

The second end of the reset unit 10 connects the output terminal of the switch element 4,

Frequency overcurrent protective high back-pressure A electricity can be limited it is further preferred that additionally providing and belonging to the Self-resetting of the third type Road generator voltage regulator, it is characterized in that,

The sampling unit 1 includes resistance R1, R2 and capacitance C1, and the resistance R1 and R2 is connected in series, the resistance R2 In parallel with capacitance C1, the other end of the resistance R1 is connecting the power supply of generator voltage controller just for the positive terminal of sampling unit Pole (D+/B+), the other end of the resistance R2 is grounded (i.e. power cathode E) for negative pole end, the resistance R1 and R2 is connected in series Node connects the input terminal of threshold cell 2 for the output terminal of the sampling unit；

The anode that the threshold cell 2 includes zener diode D1, the zener diode D1 is the defeated of threshold cell 2 Enter end, the just extremely input terminal of output terminal connecting valve control unit 3 of the zener diode D1,

The switch control unit 3 includes triode Q1 and the base stage of resistance R3, the triode Q1 are controlled as switch The input terminal of unit 3, the collector of triode Q1 are connected with resistance R3, and the collector of the triode Q1 is also as switch control The input terminal of the output terminal connecting valve unit 4 of unit 3, the transmitting extremely common end grounding of the triode Q1, the resistance Positive pole (D+/B+) of the other end of R3 as the positive terminal connection generator voltage controller of switch control unit 3,

The switch element 4 includes power field effect pipe Q2, and the source electrode of the power field effect pipe Q2 is as switch element 4 Ground terminal, power field effect pipe Q2 drain electrode as switch element 4 output terminal, that is, generator voltage controller excitation control End F processed, for controlling the cold end of A circuit generator excitation windings,

One end that the feedback unit 6 includes feedback resistance R4, the feedback resistance R4 connects for the input terminal of feedback unit 6 Connect the 3rd end of reset unit 4, the feedback resistance R4 other ends are controlled for the output terminal connection switch of the feedback unit 6 The input terminal of unit 3 processed,

The state recognition unit 7 is including the transmitting extremely state recognition unit 7 of triode Q3, the triode Q3 just The positive pole (D+/B+) of extreme connection generator voltage controller, the base stage of the triode Q3 are state recognition unit 7 Input terminal passes through the output terminal of resistive 8 connecting valve unit 4 of module, the current collection extremely state recognition unit 7 of the triode Q3 Output terminal connection timing unit 9 input terminal,

The timing unit 9 includes capacitance C2 and resistance R6, one end of the capacitance C2 are connected with resistance R6, connecting node As the input terminal of timing unit 9, the other end of the resistance R6 is as the output terminal connection reset unit 10 of timing unit 9 First end, the other end of the capacitance C2 are grounded or connect positive pole as the 3rd end of the timing unit 9,

The reset unit 10 includes first end of the base stage of triode Q4, the triode Q4 as reset unit 10, The collector of the triode Q4 is connected as the second end of reset unit 10 with the output terminal of switch element 4, the triode Threeth end of the emitter of Q4 as reset unit 10,

Fourth aspect according to the utility model, there is provided the 4th kind of Self-resetting can limit the high back-pressure A electricity of frequency overcurrent protective Road generator voltage regulator, it is characterized in that including sampling unit 1, threshold cell 2, switch control unit 3, switch Unit 4, afterflow unit 5, feedback unit 6, state recognition unit 7, resistive module 8, timing unit 9, reset unit 10 and capacitive Module 11, wherein：

The threshold cell 2 has input terminal and output terminal,

The switch control unit 3 includes input, output end and common port,

The switch element 4 has input, output end and ground terminal,

The afterflow unit 5 is fly-wheel diode,

The feedback unit 6 includes input terminal and output terminal,

The timing unit 9 has input, output end and the 3rd end,

The reset unit 10 has first end, second end and the 3rd end,

The output terminal of the switch control unit 3 connects the input terminal of the switch element 4, the switch control unit 3 Common end grounding,

The output terminal of the timing unit 9 connects the first end of the reset unit 10, the 3rd end of the timing unit 9 The output terminal of the switch control unit 3 is connected,

Frequency overcurrent protective high back-pressure A electricity can be limited it is further preferred that additionally providing and belonging to the Self-resetting of the 4th type Road generator voltage regulator, it is characterized in that,

The switch control unit 3 includes triode Q1, and the base stage of the triode Q1 is as the defeated of switch control unit 3 Enter end, the input terminal of the collector of the triode Q1 as the output terminal connecting valve unit 4 of switch control unit 3 is described The transmitting of triode Q1 extremely common end grounding,

The switch element 4 includes power field effect pipe Q2, and the source electrode of the power field effect pipe Q2 is as switch element 4 Ground terminal, output terminal, that is, generator voltage controller of the drain electrode as the switch element 4 of the power field effect pipe Q2 Excitation con-trol end F, for controlling the cold end of A circuit generator excitation windings,

One end that the feedback unit 6 includes feedback resistance R4, the feedback resistance R4 connects for the input terminal of feedback unit 6 Connect the 3rd end of reset unit 4, the output terminal connecting valve control unit 3 that the feedback resistance R4 other ends are feedback unit 6 Input terminal,

The state recognition unit 7 is including the transmitting extremely state recognition unit 7 of triode Q3, the triode Q3 just The positive pole (D+/B+) of extreme connection generator voltage controller, the base stage of the triode Q3 are state recognition unit 7 Input terminal connects the current collection extremely state recognition list of the output terminal of the switch element 4, the triode Q3 by resistive module 8 The output terminal of member 7 connects the input terminal of the timing unit 9,

The timing unit 9 includes capacitance C2 and resistance R6, one end of the capacitance C2 are connected with resistance R6, connecting node As the input terminal of timing unit 9, the other end of the resistance R6 is as the output terminal connection reset unit 10 of timing unit 9 First end, the capacitance C2 other ends connect the triode Q1 collectors (switch control as the 3rd end of timing unit 9 Unit output terminal),

The reset unit 10 includes first end of the base stage of triode Q4, the triode Q4 as reset unit 10, The collector of the triode Q4 is connected as the second end of the reset unit 10 with the output terminal of the switch element 4, institute Threeth end of the emitter of triode Q4 as the reset unit 10 is stated,

The 5th aspect according to the utility model, there is provided the 5th kind of Self-resetting can limit the high back-pressure A electricity of frequency overcurrent protective Road generator voltage regulator, its be characterized in that including,

Sampling unit 1, threshold cell 2, switch control unit 3, switch element 4, afterflow unit 5, feedback unit 6, state Recognition unit 7, resistive module 8, timing unit 9, reset unit 10 and capacitive module 11, wherein：

The threshold cell 2 has input terminal and output terminal,

The switch element 4 has input, output end and ground terminal,

The afterflow unit 5 is fly-wheel diode,

The feedback unit 6 includes input terminal and output terminal,

The timing unit 9 has input, output end and the 3rd end,

The reset unit 100 has first end, second end and the 3rd end,

The output terminal of the timing unit 9 connects the first end of the reset unit 100, the 3rd of the timing unit 9 the End ground connection connects positive pole,

The 3rd end of reset unit 100 ground connection, the second end of the reset unit 100 connect the switch control unit 3 input terminals,

One end of the capacitive module 11 connect the first end of the reset unit 100, the capacitive module 11 it is another End connects the input terminal of the state recognition unit 7 or the output terminal of the connection switch element 4.

The 6th aspect according to the utility model, there is provided the 6th kind of Self-resetting can limit the high back-pressure A electricity of frequency overcurrent protective Road generator voltage regulator, it is characterized in that including sampling unit 1, threshold cell 2, switch control unit 3, switch Unit 4, afterflow unit 5, feedback unit 6, state recognition unit 7, resistive module 8, timing unit 9, reset unit 10 and capacitive Module 11, wherein：

The threshold cell 2 has input terminal and output terminal,

The switch control unit 3 includes input, output end and common port,

The switch element 4 has input, output end and ground terminal,

The afterflow unit 5 is fly-wheel diode,

The feedback unit 6 includes input terminal and output terminal,

The timing unit 9 has input, output end and the 3rd end,

The reset unit 200 has first end, second end and the 3rd end,

The output terminal of the timing unit 9 connects the first end of the reset unit 200, the 3rd of the timing unit 9 the End connects the output terminal of the switch control unit 3,

The 3rd end ground connection of the reset unit 200, the second end connection of the reset unit 200 switch control are single The input terminal of member 3,

One end of the capacitive module 11 connect the first end of the reset unit 200, the capacitive module 11 it is another End connects the input terminal of the state recognition unit 7 or the output terminal of the connection switch element 4.

The beneficial effects of the utility model are：It is ingenious to be wanted using circuit system is each using relatively simple property circuit structure The sequential of signal between element, state relation, can by the circuit integrated height with more consummating function for refining simple structure By generator voltage controller, the overcurrent protection that can meet automobile current generator as much as possible, temperature-resistance characteristic, excitation frequency are realized Rate, excitation delay restriction, high back-pressure, jamproof generator particular job environmental condition demand.

Brief description of the drawings

Fig. 1 is that the utility model embodiment the first Self-resetting can limit the high back-pressure A circuit voltage tune of frequency overcurrent protective Device circuit block diagram is saved,

Fig. 2 is that the utility model embodiment the first Self-resetting can limit the high back-pressure A circuit voltage tune of frequency overcurrent protective Device electrical block diagram is saved,

Fig. 3 is that second of Self-resetting of the utility model embodiment can limit the high back-pressure A circuit voltage tune of frequency overcurrent protective Device circuit block diagram is saved,

Fig. 4 is that second of Self-resetting of the utility model embodiment can limit the high back-pressure A circuit voltage tune of frequency overcurrent protective Device electrical block diagram is saved,

Fig. 5 is that the utility model embodiment the third Self-resetting can limit the high back-pressure A circuit voltage tune of frequency overcurrent protective Device circuit block diagram is saved,

Fig. 6 is that the utility model embodiment the third Self-resetting can limit the high back-pressure A circuit voltage tune of frequency overcurrent protective Device electrical block diagram is saved,

Fig. 7 is that the 4th kind of Self-resetting of the utility model embodiment can limit the high back-pressure A circuit voltage tune of frequency overcurrent protective Device circuit block diagram is saved,

Fig. 8 is that the 4th kind of Self-resetting of the utility model embodiment can limit the high back-pressure A circuit voltage tune of frequency overcurrent protective Device electrical block diagram is saved,

Fig. 9 is that the 5th kind of Self-resetting of the utility model embodiment can limit the high back-pressure A circuit voltage tune of frequency overcurrent protective Device circuit block diagram is saved,

Figure 10 is that the 5th kind of Self-resetting of the utility model embodiment can limit the high back-pressure A circuit voltage tune of frequency overcurrent protective Device electrical block diagram is saved,

Figure 11 is that the 6th kind of Self-resetting of the utility model embodiment can limit the high back-pressure A circuit voltage tune of frequency overcurrent protective Device block diagram is saved,

Figure 12 is that the 6th kind of Self-resetting of the utility model embodiment can limit the high back-pressure A circuit voltage tune of frequency overcurrent protective Save device electrical block diagram.

Embodiment

In a first aspect, the utility model, which provides the first Self-resetting, can limit the high back-pressure A circuits power generation of frequency overcurrent protective Machine voltage regulator.

Embodiment 1, as shown in Figure 1：The high back-pressure A circuits power generation pressure of frequency overcurrent protective can be limited for the first Self-resetting to adjust The block diagram of device.

1st, the structure of the voltage regulator includes, sampling unit 1, threshold cell 2, switch control unit 3, switch element 4, Afterflow unit 5, feedback unit 6, state recognition unit 7 (being used for identification switch unit or load current), resistive module 8, timing Unit 9, reset unit 10 and capacitive module 11, wherein：

Sampling unit 1 has positive terminal, negative pole end and output terminal,

Threshold cell 2 has input terminal and output terminal,

Switch control unit 3 includes input, output end, common port and positive terminal,

Switch element 4 has input, output end and ground terminal,

Afterflow unit 5 is fly-wheel diode,

Feedback unit 6 includes input terminal and output terminal,

State recognition unit 7 has positive terminal, input terminal and output terminal,

Resistive module 8 is the resistance circuit with current-limiting resistance characteristic,

Timing unit 9 has input, output end and the 3rd end,

Reset unit 10 has first end, second end and the 3rd end,

Capacitive module 11 is the capacitive circuit with charge-discharge characteristic,

Positive pole (D+/B+), the negative pole end of the positive terminal connection generator voltage controller of sampling unit 1 are grounded (i.e. Power cathode E), the input terminal of the output terminal of sampling unit connection threshold cell 2；

The input terminal of the output terminal connecting valve control unit 3 of threshold cell 2,

The input terminal of the output terminal connecting valve unit 4 of switch control unit 3, the common port connection of switch control unit 3 The second end of reset unit 10, the positive pole (D+/B of the positive terminal connection generator voltage controller of switch control unit 3 +),

The ground terminal ground connection of switch element 4, excitation con-trol of the output terminal of switch element 4 as generator voltage controller F is held, for controlling the cold end of A circuit generator excitation windings,

The output terminal of the cathode connecting valve unit 4 of fly-wheel diode, the anode connection generator voltage of fly-wheel diode The positive pole (D+/B+) of adjuster,

6 input terminal connecting valve unit of feedback unit, 4 output terminal, feedback unit 6 output terminal connecting valve control unit 3 Input terminal,

Positive pole (D+/B+), the state recognition list of the positive terminal connection generator voltage controller of state recognition unit 7 The input terminal of member 7 passes through the output terminal of resistive 8 connecting valve unit 4 of module, the output terminal connection timing list of state recognition unit 7 The input terminal of member 9,

The first end of the output terminal connection reset unit 10 of timing unit 9, the 3rd end of timing unit 9 are grounded or connect power supply Cathode, (the low 3rd end ground connection of timing unit 9 being only shown just to avoid confusion with explanation, in figure, following embodiments are same),

The 3rd end ground connection of reset unit 10,

The first end of one end connection reset unit 10 of capacitive module 11, the identification of the other end connection status of capacitive module 11 The input terminal of unit 7 or the output terminal of connecting valve unit 4.

2nd, the adjuster course of work is：

1. under-voltage excitation：When generator output voltage (i.e. terminal D+/B+) is less than setting value, acquired in sampling unit 1 Sampled signal voltage be less than 2 activation threshold value voltage of threshold cell, switch control unit 3 exports high potential, makes switch element 4 full Low potential is exported with conducting, connects the exciting current of generator excitation winding, meanwhile, the low potential that switch element 4 exports passes through Resistive module 8 turns on state recognition unit 7, and on the one hand dragging down switch control unit input terminal potential by feedback unit makes out Close control unit output high potential so that the state be stable state, and second aspect charges for the storage capacitor in timing unit 9, the Three aspects provide direct current signal by the current limiting element in timing unit 9 for reset unit 10, turn on reset unit 10, also That the second end of reset unit 10 turns on the 3rd end (i.e.), for overvoltage when or switch control unit turns on over the ground during overcurrent It is ready.

2. fixed " duration " cut-off after overvoltage：With generator operation, when generator output voltage is higher than setting value, sampling Sampled signal voltage acquired in unit 1 is higher than 2 activation threshold value voltage of threshold cell, and switch control unit 3 exports low potential, makes Switch element 4 ends, and cuts off the exciting current of generator excitation winding, meanwhile, switch element 4 exports high potential, by resistive Module 8 ends state recognition unit 7, the storage capacitor in timing unit 9 is stopped charging, another aspect energy storage electricity Hold and the offer direct current signal of reset unit 10 continued as by the current limiting element in timing unit 9, reset unit 10 is still turned on, Its time that a length of storage capacitor electric discharge terminates when turning on is grown for its timing, this state is temporary stable state.

3. Self-resetting turns on：When the storage capacitor electric discharge in timing unit 9 terminates, reset unit recovers cut-off, switch control Unit processed disconnects over the ground, switch control unit is exported high level, and switch element turns on output low level, exciting current quilt therewith Reclose, while state recognition unit 7 is turned on again by resistive module 8, be again storage capacitor charging, also revert to Reset unit 10 provides direct current signal, turns on reset unit 10, but switch element 4 is dragged down out by feedback unit 6 at this time Closing the input terminal potential of control unit 3 makes switch control unit 3 export high potential so that the state has been stable state, so again For overvoltage when or switch control unit turns on be ready over the ground during overcurrent.

During generator voltage controller normal regulating, the above process moves in circles.

4. overcurrent protection：In normal excitation, as exciting current of the general vehicle generator under the conditions of 14V for 3.8~ 4.5 amperes, when due to Exciting Windings for Transverse Differential Protection short circuit, short, carbon brush abrasive powders, the reason such as electric leakage in parallel causes out between rotor copper ring When closing the exciting power pipe overcurrent of unit 4, the saturation voltage drop of the power tube will raise, if be not limited, quickly will Overheat power tube and then burn, breakdown power pipe, permanent conduction state is presented in the power tube after breakdown, can cause excitation Winding makes generator output voltage excessive in the next collimated excitation of constant high current, up to 20~more than 30V, can burn out automobile electricity Brain plate, instrument board, ignition module, other control modules, automotive wire bundle, fuse, storage battery, generator commutation bridge, hair on car Motor stator winding etc., or even trigger fire, property loss can be brought or even jeopardize traffic safety.

But the prior art of traditional circuit, fail it is timely and effective it is low make overcurrent protection, make dynamo governor power tube Spoilage is higher caused by overcurrent punctures, and therefore generator producer is subject to claim to happen occasionally, even if there is overcurrent protection, generally And connect in main line and high current resistance or cover copper copper foil, high current resistance or copper foil voltage are sampled again by comparing amplification Two carry out overcurrent protection, and such current foldback circuit complex circuit, action hysteresis, area occupied is big, fever is more and connects Discreteness in bulk article of high current resistance or copper foil voltage is larger, bulk article uniformity is bad, then have and be exactly Because its complicated cost is higher.Although separately there are the saturation voltage drop that the sampling of some current foldback circuits makes power tube, circuit after protection It cannot reset, need reproduction to power on ability manual reset, such control circuit is obviously not suitable for voltage regulator automatic adjustment, If reset, it is necessary to which complicated oscillating circuit or special reset circuit, also make circuit excessively complicated, be extremely limited for area Regulator chip for, be also not suitable with.For the method using CPU or MCU, these intelligent chips are used as voltage regulator When, either temperature characterisitic does not meet, either anti-interference bad (because car on various electromagnetic interference signals more) or starts Voltage is higher, or cost is higher.

A, embodiment of the utility model, when power tube overcurrent occurs, the signal voltage of power tube output terminal is high In the input terminal activation threshold value voltage of switch control unit 3, height is inputted by input terminal of the feedback unit in switch control unit 3 Voltage signal, make switch control unit 3 export low potential, switch element 4 export high potential, this process for signal voltage just Feedback procedure, circuit upset is extremely rapid, switch element 4 is ended rapidly, cuts off the exciting current of generator excitation winding, together When, switch element 4 exports high potential, ends state recognition unit 7 by resistive module 8, on the one hand makes in timing unit 9 Storage capacitor stops charging, another aspect storage capacitor continues as reset unit 10 by the current limiting element in timing unit 9 and carries For direct current signal, reset unit 10 is set still to turn on, its time that a length of storage capacitor electric discharge terminates when turning on is grown for its timing, This state is temporary stable state.

B, after above-mentioned temporarily stable state, circuit enters Self-resetting conducting state.

If C, short circuit releases, circuit enters foregoing state 3..

If D, sustained short-circuit, when circuit has just enter into Self-resetting conducting state, it is again storage capacitor charging, also makes reset Unit 10 turns on, and due to still overcurrent, equally undergoing above-mentioned positive feedback process makes power tube end rapidly, need to undergo timing again It can just recover after time, due to making sustained short-circuit, after timing ends each time, only pass through extremely short " sound out Property " conducting, excessive saturation voltage drop voltage triggered overcurrent protection action, the extremely narrow " examination of pulsewidth are just obtained in power tube output terminal The property visited " the pulse spacing is capacitor discharge time in timing unit, therefore " exploratory " pulse frequency in continuous overcurrent protection It is fixed.In the long-term overflow process of power tube, the above process moves in circles.When short circuit releases, circuit recovers to turn on automatically.

5. frequency limiting function：" exploratory " pulse frequency during according to foregoing overcurrent protection is fixed, and therefore, circuit exists The procedures of turn-off in the excitation cycle that adjuster normal regulating makes is that timing is long, and the filter capacitor of this point and the prior art determines Excitation frequency is entirely different, since its power tube conducting duration is determined by the load factor of generator real-time working condition, therefore is ended Time is altogether the function factor of output voltage with excitation time, therefore change deadline can change excitation time, therefore is encouraged Magnet rate can determine by the capacitor discharge time in timing unit, can so limit excitation frequency be unlikely to it is excessive, It is unlikely to too low.

One end of capacitive module 11 in circuit is connected to the input terminal of reset unit 10, the other end is connected to state recognition The input terminal of unit 7 or to be connected to switch element 4 be output terminal, two kinds of connections can play accelerating circuit response, stablize electricity Road working status, ensure that power tube reliably turns on, improves the effect of circuit anti-interference with saturation state.

As shown in Fig. 2, the high back-pressure A circuit generator voltage controllers of frequency overcurrent protective can be limited for the first Self-resetting Electrical block diagram.

1st, circuit structure includes：Sampling unit 1 includes resistance R1, R2 and capacitance C1, and resistance R1 and R2 are connected in series, R2 and Capacitance C1 is in parallel, the other end of resistance R1 connected for the positive terminal of sampling unit generator voltage controller positive pole (D+/ B+), the other end of resistance R2 is that to be connected in series node be sampling unit by negative pole end ground connection (i.e. power cathode E), resistance R1 and R2 Output terminal connection threshold cell 2 input terminal；

Threshold cell 2 includes zener diode D1, its anode is the input terminal of threshold cell 2, its just extremely output terminal The input terminal of connecting valve control unit 3,

Switch control unit 3 includes triode Q1 and resistance R3, and the base stage of triode Q1 is as the defeated of switch control unit 3 Enter end, the collector of triode Q1 is connected with resistance R3, output terminal connecting valve list of the collector also as switch control unit 3 The input terminal of member 4, the second end of the transmitting extremely common port connection reset unit 10 of triode Q1, the other end conduct of resistance R3 The positive pole (D+/B+) of the positive terminal connection generator voltage controller of switch control unit 3,

Switch element 4 includes power field effect pipe Q2, ground terminal, drain electrode conduct switch of its source electrode as switch element 4 The excitation con-trol end F of output terminal, that is, generator voltage controller of unit 4, for controlling the cold of A circuit generator excitation windings End,

Afterflow unit 5 is sustained diode 2, and the output terminal of its cathode connecting valve unit 4, anode connection power generation are electromechanical The positive pole (D+/B+) of adjuster is pressed,

Feedback unit 6 includes feedback resistance R4, and its one end is the output of the input terminal connecting valve unit 4 of feedback unit 6 End, the input terminal for the output terminal connecting valve control unit 3 that the other end is feedback unit 6,

State recognition unit 7 includes triode Q3, and it is electromechanical that it launches the positive terminal connection power generation of extremely state recognition unit 7 Positive pole (D+/B+), the base stage of adjuster is pressed to pass through resistive 8 connecting valve list of module for the input terminal of state recognition unit 7 The input terminal of the output terminal of member 4, the output terminal connection timing unit 9 of current collection extremely state recognition unit 7,

Timing unit 9 includes capacitance C2 and resistance R6, and one end of capacitance C2 is connected with resistance R6, and connecting node is as timing The input terminal of unit 9, the other end of resistance R6 connect the first end of reset unit 10, capacitance as the output terminal of timing unit 9 The other end of C2 is grounded as the 3rd end of timing unit 9 or connects positive pole and (just to avoid confusion with explanation, only shown in figure The low 3rd end ground connection of timing unit 9, following embodiments are same),

Reset unit 10 includes triode Q4, and first end of its base stage as reset unit 10, collector is as reset list The second end of member 10, emitter are grounded as the 3rd end of reset unit 10,

Capacitive module 11 includes capacitance C3, the first end of its one end connection reset unit 10, the identification of other end connection status The input terminal of unit 7 or the output terminal of connecting valve unit 4.

2nd, the adjuster course of work is：

1. under-voltage excitation：When generator output voltage (i.e. terminal D+/B+) is less than setting value, resistance R1 connects section with R2 The sampled signal voltage of point (should also include the emitter junction conducting threshold of triode Q1 certainly less than voltage-stabiliser tube D1 activation threshold values voltage The saturation voltage drop of value and triode Q4, due to both this and very low, for sake of convenience, ignores for the time being), triode Q1 cut-offs make Switch control unit 3 exports high potential, and then power field effect pipe Q2 saturation conductions connect the excitation electricity of generator excitation winding Stream, while export low potential.At the same time, the low potential of Q2 outputs turns on triode Q3 by resistance R5, on the one hand passes through The resistance R4 of feedback unit, which drags down switch control unit input terminal potential, makes switch control unit export high potential so that the state For stable state, second aspect is the storage capacitor C2 chargings in timing unit 9, the third aspect passes through the current limliting electricity in timing unit 9 Resistance R6 provide direct current signal for triode Q4 base stages, make triode Q4 conducting, i.e., the second end of reset unit 10 to the 3rd end (i.e. Ground) conducting, for overvoltage when or Q1 is turned on be ready over the ground during overcurrent.

2. periodically long cut-off after overvoltage：With generator operation, when generator output voltage is higher than setting value, sampling is single Sampled signal voltage acquired in member 1 is higher than 2 activation threshold value voltage of threshold cell, and switch control unit 3 exports low potential, makes out Close unit 4 to end, cut off the exciting current of generator excitation winding, meanwhile, switch element 4 exports high potential, passes through resistive mould Block 8 ends state recognition unit 7, the storage capacitor C2 in timing unit 9 is stopped charging, another aspect energy storage electricity Hold C2 and triode Q4 offer base currents are continued as by resistance R6, it is still turned on, a length of storage capacitor C2 when it is turned on The time terminated by resistance R6 electric discharges is grown for its timing, this state is temporary stable state.

3. Self-resetting turns on：When storage capacitor C2 electric discharges terminate, triode Q4 recovers cut-off, triode Q1 is disconnected over the ground, Switch control unit 3 is set to export high level, switch element 4 turns on output low level therewith, and exciting current is reclosed, at the same time State recognition unit 7 is turned on again by resistive module 8, is storage capacitor charging again, also reverts to reset unit 10 and carry For direct current signal, turn on reset unit 10, but switch element 4 drags down switch control unit 3 by feedback unit 6 at this time Input terminal potential makes switch control unit 3 export high potential so that the state be stable state, so again for it is over-pressed when or mistake Switch control unit turns on be ready over the ground during stream.

If C, short circuit releases, circuit enters foregoing state 3..

The product that voltage regulator actual production to the utility model circuit arrangement that a set point is 14.50V is put into practice Test shows that the excitation frequency test result of capacitance and discharge resistance under a certain RC time constants is as follows：

One end of capacitive module 11 in circuit is connected to the input terminal of reset unit 10, knows when the other end is connected to state During the input terminal of other unit 7：When energized, positive pole will become capacitance C3 chargings by the transmitting of triode Q3, Q4, This charging current turns on Q3, Q4, and Q3 charges rapidly for capacitance C2, and maintains Q4 conductings by resistance R6, these are all three Bistable " the power trigger device " that pole pipe Q1 and Q2 and positive feedback resistor R4 is formed is ready.At " power trigger device " place When stable state, that is, Q2 conducting states, Q3, Q4 conducting are that trigger upset is that temporary stable state is ready, when " power trigger device " is in temporary During stable state, Q3 cut-offs, Q4 Delayed conductings are that trigger upset is that stable state is ready, and the capacitance C3 of capacitive module 11 is conducive to make Circuit state determines, acceleration is overturn.When 11 other end of capacitive module is connected to power tube Q2 output terminals, role with it is above-mentioned It is essentially identical.Two kinds of connections can play accelerating circuit response, stabilizing circuit working status, ensure power tube with saturation state Reliable conducting, the effect for improving circuit anti-interference, capacitance C3 capacity reduce power when can reduce load short circuits overcurrent protection Manage " conducting burst pulse " width, general recommendations (not limited to this value) below 1 percent；Capacitive mould in the following embodiments Block 11 is same, is not repeated to illustrate hereinafter.

It should be noted that those skilled in the art are readily understood by, the ground terminal of the capacitance C2 of above-mentioned timing unit 9 It can be connected using reconfiguration as with positive pole, the same realization for ensureing circuit function：

Capacitance C2 downlink connections in parallel with triode Q3 so is converted into, when triode Q3 ends, originally by capacitor C2 provides base stage delay for triode Q4 by resistance R6 electric discharges and continues electric current, and the electric discharge end that terminates then to be delayed makes Q4 sections of triode Only, power tube Q2 starts to recover conducting, and then makes triode Q3 conductings and charge for capacitance C2；Present situation is, when three poles When pipe Q3 ends, positive pole, which flows through the charging current of capacitor C2 resistance R6 and for triode Q4 provides base stage and be delayed, to continue electricity Stream, charging, which terminates then delay end, makes triode Q4 cut-offs, power tube Q2 start to recover conducting, and then makes triode Q3 conductings Capacitance C2 discharges；Two kinds of connection differences, capacitance C2 discharge and recharges phase is on the contrary, but be the same to circuit working result.It is attached Exemplified by being only grounded in Fig. 2 by capacitor C2 one end, for simplicity, the attached drawing that positive pole is terminated for C2 mono- is omitted (below Embodiment it is same).

It should also be noted that, the circuit shown in Fig. 2 is intended merely to facilitate explanation the technical solution of the utility model, it is real Border application in, in order to make circuit work it is more reliable and more stable, can between the PN junction of each transistor and connecting resistance or low capacity electricity Hold and can in capacitance module series resistance to reduce the rush of current to related PN junction.Scene effect tube grid and source Zener diode and can be connect between pole, is used to protect power tube to limit gate source voltage amplitude, or can also take in grid Current supply circuit increases rc protection circuit.Can be with series voltage stabilizing pipe to improve feedback activation threshold value, such as power in feedback unit , can be in feedback unit since the saturation voltage drop of Darlington is higher than normal transistor emitter junction conduction threshold when pipe uses Darlington Series voltage stabilizing pipe；Or feedback resistance series winding general-purpose diode is taken, the anode connection power tube output terminal of the general-purpose diode, instead The voltage-stabiliser tube connecting valve control unit input terminal that the other end of feed resistance is concatenated, the anode of zener diode is through another electricity Resistance connection positive pole, can so reduce the trigger sensitivity of effective Feedback signal, improve circuit stability；This is also adapted to In fet power pipe.In addition, resistance can be replaced with transistor constant current source, timing unit can also use noncapacitive energy storage Timing circuit, and these are the routine techniques of electronic circuit.

Further, since circuit is determined using the pressure voltage of discrete device by transistor parameter, and high back voltage transistors are not only Very common and cheap, heat resistance is better than integrated circuit, so such generator voltage controller pressure voltage can Easily to accomplish more than 150V (12V systems), can also be easily able to more than more than 240V (28V systems), due also to circuit Structure very simple, component sum are less, of low cost, these advantages are that integrated circuit is not easily achieved.

In this way, brand-new technical solution is obtained with the Technology design of innovation：The ball bearing made that discrete device is formed Many-sided excellent specific property such as overcurrent protection, temperature-resistance characteristic, excitation frequency, excitation delay restriction, high back-pressure, anti-interference is integrated with, Automobile current generator particular job environmental condition demand of adaptation, is especially to provide and meets the highly reliable of China's generator market demand Property voltage regulator.

Second aspect, there is provided second of Self-resetting can limit the high back-pressure A circuits generator voltage of frequency overcurrent protective and adjust Device.

Embodiment 2, as shown in Figure 3：The high back-pressure A circuit voltage adjusters of frequency overcurrent protective can be limited for second of Self-resetting Block diagram.

1st, the structure of the voltage regulator includes, sampling unit 1, threshold cell 2, switch control unit 3, switch element 4, Afterflow unit 5, feedback unit 6, state recognition unit 7, resistive module 8, timing unit 9, reset unit 10 and capacitive module 11, Wherein：

Sampling unit 1 has positive terminal, negative pole end and output terminal,

Threshold cell 2 has input terminal and output terminal,

Switch control unit 3 includes input, output end and common port,

Switch element 4 has input, output end and ground terminal,

Afterflow unit 5 is fly-wheel diode,

Feedback unit 6 includes input terminal and output terminal,

Timing unit 9 has input, output end and the 3rd end,

Reset unit 10 has first end, second end and the 3rd end,

The input terminal of the output terminal connecting valve unit 4 of switch control unit 3, the common port connection of switch control unit 3 The second end of reset unit 10,

The output terminal connecting valve control of the output terminal, feedback unit 6 of the input terminal connecting valve unit 4 of feedback unit 6 The input terminal of unit 3,

The first end of the output terminal connection reset unit 10 of timing unit 9, the 3rd end connecting valve control of timing unit 9 The output terminal of unit,

The 3rd end ground connection of reset unit 10,

2nd, the adjuster course of work is：

1. under-voltage excitation：When generator output voltage (i.e. terminal D+/B+) is less than setting value, acquired in sampling unit 1 Sampled signal voltage be less than 2 activation threshold value voltage of threshold cell, switch control unit 3 exports high potential, which comes from In the 3rd end of timing unit 9,4 saturation conduction of switch element is exported low potential, connect the excitation electricity of generator excitation winding Stream, meanwhile, the low potential that switch element 4 exports turns on state recognition unit 7 by resistive module 8, on the one hand passes through feedback Unit, which drags down switch control unit input terminal potential, makes switch control unit export high potential so that and the state is stable state, second Aspect causes storage capacitor to export high potential and be loaded into switch list for the storage capacitor charging in timing unit 9, charging process The input terminal of member, obtains since power tube gate-source junctions capacitance (general tens of below pf) is smaller than storage capacitor (general thousands of more than pf) More, total capacitance is minimum, the charging interval is extremely short, and storage capacitor has not enough time to abundance, and the pressure drop of storage capacitor both ends is smaller therefore the charging The pressure drop in circuit mainly will be between power tube gate-source junctions, and the third aspect is single to reset by the current limiting element in timing unit 9 Member 10 provides direct current signal, turns on reset unit 10, that is, the second end of reset unit 10 turns on the 3rd end (i.e.), For overvoltage when or switch control unit turns on be ready over the ground during overcurrent.

2. periodically long cut-off after overvoltage：With generator operation, when generator output voltage is higher than setting value, sampling is single Sampled signal voltage acquired in member 1 is higher than 2 activation threshold value voltage of threshold cell, and switch control unit 3 exports low potential, makes out Close unit 4 to end, cut off the exciting current of generator excitation winding, meanwhile, switch element 4 exports high potential, passes through resistive mould Block 8 ends state recognition unit 7, the storage capacitor in timing unit 9 is stopped charging, another aspect storage capacitor Reset unit 10 is continued as by the current limiting element in timing unit 9 direct current signal is provided, reset unit 10 is still turned on, its The time that a length of storage capacitor electric discharge terminates during conducting is grown for its timing, this state is temporary stable state.

4. overcurrent protection：In normal excitation, as exciting current of the general vehicle generator under the conditions of 14V for 3.8~ 4.5 amperes, when due to Exciting Windings for Transverse Differential Protection short circuit, short, carbon brush abrasive powders, the reason such as electric leakage in parallel causes out between rotor copper ring When closing the exciting power pipe overcurrent of unit 4, the saturation voltage drop of the power tube will raise, if be not limited, quickly will Overheat power tube and then burn, breakdown power pipe.

A, when power tube overcurrent occurs, the signal voltage of power tube output terminal is higher than the input terminal of switch control unit 3 Activation threshold value voltage, by feedback unit in the input terminal high input voltage signal of switch control unit 3, makes switch control unit 3 output low potentials, switch element 4 export high potential, this process is the positive feedback process of signal voltage, and circuit upset is extremely fast Speed, makes switch element 4 end rapidly, cuts off the exciting current of generator excitation winding, meanwhile, switch element 4 exports high potential, End state recognition unit 7 by resistive module 8, the storage capacitor in timing unit 9 is stopped charging, another aspect The storage capacitor continues as reset unit 10 by the current limiting element in timing unit 9 and provides direct current signal, makes reset unit 10 Still turn on, its time that a length of storage capacitor electric discharge terminates when turning on is grown for its timing, this state is temporary stable state.

If C, short circuit releases, circuit enters foregoing state 3..

6. the raising of low speed power generation performance：If it should be noted that during above-mentioned 1. under-voltage excitation, due to storage Energy capacitance charging reasons, reduce power tube grid voltage so that power tube is from fully saturated, when power tube exits saturation Into linear zone, the excessive voltage of power tube output terminal can make circuit by feedback unit trigger switch control unit input terminal Upset enters temporary stable state, and power tube turns on again after temporary stable state, and repeats above-mentioned storage capacitor charging process, therefore this tune Device is saved when only with trigram formula (D ,+B ,+E), for nine pipes or 11 pipe generators, is carried by three Excitation Diodes It is in circuit for exciting current, which shows fabulous " self-saturation conducting " performance, i.e.,：Discharge when due to storage capacitor When reason makes the power tube exit saturation, circuit will automatically cut off power tube, exciting current cut-out at this time, from D+ (from filling Electric indicator light anode) standby current (being 80mA for the general general electric current of this electric current 160mA, 28V system of 14V systems) in work( Greatly reduce in rate pipe procedures of turn-off, the voltage of D+ terminals is risen to close to battery tension (charging indicator light circuit at this time It is bordering on and 0) charges again for storage capacitor, this function of automatically exiting from and automatic energy storage and Self-resetting turn on, makes nine pipes generate electricity The initial power generation rotating speed of machine will reduce, and the performance of this adjuster is better than import similar product.

As shown in figure 4, the circuit knot of the high back-pressure A circuit voltage adjusters of frequency overcurrent protective can be limited for second of Self-resetting Structure schematic diagram.

Switch control unit 3 includes triode Q1, the input terminal of the base stage of triode Q1 as switch control unit 3, and three Input terminal of the collector of pole pipe Q1 as the output terminal connecting valve unit 4 of switch control unit 3, the emitter of triode Q1 The second end of reset unit 10 is connected for common port,

State recognition unit 7 includes triode Q3, and it is electromechanical that it launches the positive terminal connection power generation of extremely state recognition unit 7 Positive pole (D+/B+), the base stage of adjuster is pressed to connect for the input terminal of state recognition unit 7 by the resistance R5 of resistive module 8 Be connected to the output terminal of switch element 4, current collection extremely state recognition unit 7 output terminal connection timing unit 9 input terminal,

Timing unit 9 includes capacitance C2 and resistance R6, and one end of capacitance C2 is connected with resistance R6, and connecting node is as timing The input terminal of unit 9, the other end of resistance R6 connect the first end of reset unit 10, capacitance as the output terminal of timing unit 9 The other end of C2 is connected as the 3rd end of timing unit 9 with the collector of triode Q1,

2nd, the adjuster course of work is：

1. under-voltage excitation：When generator output voltage (i.e. terminal D+/B+) is less than setting value, resistance R1 connects section with R2 The sampled signal voltage of point (should also include the emitter junction conducting threshold of triode Q1 certainly less than voltage-stabiliser tube D1 activation threshold values voltage The saturation voltage drop of value and triode Q4, due to both this and very low, for sake of convenience, ignores for the time being), triode Q1 cut-offs make Switch control unit 3 exports high potential, which comes from the 3rd end of timing unit 9, and then power field effect pipe Q2 satisfies And conducting

The exciting current of generator excitation winding is connected, while exports low potential.At the same time, the low potential of Q2 outputs leads to Crossing resistance R5 turns on triode Q3, and on the one hand dragging down switch control unit input terminal potential by the resistance R4 of feedback unit makes Switch control unit exports high potential so that the state is stable state, and second aspect is filled for the storage capacitor C2 in timing unit 9 Electricity, charging process cause storage capacitor output high potential to be loaded into the input terminal of switch element 4, due to power tube gate-source junctions electricity Appearance (general tens of below pf) is more much smaller than storage capacitor (general thousands of more than pf), and total capacitance is minimum, the charging interval is extremely short, storage Energy capacitance has not enough time to abundance, and the pressure drop of storage capacitor both ends is smaller therefore the pressure drop of the charge circuit mainly will be in power tube grid source Between knot, the third aspect provides direct current signal by the current limiting element in timing unit 9 for reset unit 10, makes triode Q4 Conducting, for overvoltage when or Q1 is turned on be ready over the ground during overcurrent.

If C, short circuit releases, circuit enters foregoing state 3..

6. the raising of low speed power generation performance：If it should be noted that during above-mentioned 1. under-voltage excitation, due to storage Can capacitance charging reasons, prevent power tube Q2 grid voltages reduce so that power tube from fully saturated, when power tube exit it is full With into linear zone, the excessive voltage of power tube output terminal can by 3 input terminal of R4 trigger switch control unit of feedback unit, Circuit upset is set to enter temporary stable state, power tube turns on again after temporary stable state, and repeats above-mentioned storage capacitor charging process, therefore This adjuster is when only with trigram formula (D ,+B ,+E), for nine pipes or 11 pipe generators, by three excitations two It is in circuit that pole pipe, which provides exciting current, which shows fabulous " self-saturation conducting " performance, i.e.,：When due to energy storage electricity When discharge capacitor reason makes the power tube exit saturation, circuit will automatically cut off power tube, and exciting current cut-out at this time, (come from D+ Come from charging indicator light anode) standby current (be for the general general electric current of this electric current 160mA, 28V system of 14V systems 80mA) greatly reduce in power tube procedures of turn-off, the voltage of D+ terminals is risen to close to battery tension (charging indicator light 0) circuit is bordering at this time charges for storage capacitor again, this function of automatically exiting from and automatic energy storage and Self-resetting turn on, makes The initial power generation rotating speed of nine pipe generators will reduce, and the performance of this adjuster is better than import similar product.

The third aspect, there is provided the third Self-resetting can limit the high back-pressure A circuits generator voltage of frequency overcurrent protective and adjust Device.

Embodiment 3, as shown in figure 5, the high back-pressure A circuit generator voltages of frequency overcurrent protective can be limited for the third Self-resetting Adjuster.

1st, the voltage regulator structure includes, sampling unit 1, threshold cell 2, switch control unit 3, switch element 4, continuous Unit 5, feedback unit 6, state recognition unit 7, resistive module 8, timing unit 9, reset unit 10 and capacitive module 11 are flowed, its In：

The threshold cell 2 has input terminal and output terminal,

The switch element 4 has input, output end and ground terminal,

The afterflow unit 5 is fly-wheel diode,

The feedback unit 6 includes input terminal and output terminal,

The timing unit 9 has input, output end and the 3rd end,

The reset unit 10 has first end, second end and the 3rd end,

2nd, the adjuster course of work is：

1. under-voltage excitation：When generator output voltage (i.e. terminal D+/B+) is less than setting value, acquired in sampling unit 1 Sampled signal voltage be less than 2 activation threshold value voltage of threshold cell, switch control unit 3 exports high potential, makes switch element 4 full Low potential is exported with conducting, connects the exciting current of generator excitation winding, meanwhile, the low potential that switch element 4 exports passes through Resistive module 8 turns on state recognition unit 7, and on the one hand dragging down switch control unit by reset unit and feedback unit inputs Terminal potential makes switch control unit export high potential so that the state is stable state, and second aspect is the energy storage electricity in timing unit 9 Capacity charge, the third aspect provide direct current signal by the current limiting element in timing unit 9 for reset unit 10, make reset unit 10 The 3rd terminal potential pind down by the second terminal potential, while the input end signal of reset unit 10 also also has for reset unit 10 The conducting of the 3rd end of two port gets out condition, for overvoltage when or switch control unit turns on be ready over the ground during overcurrent.

2. periodically long cut-off after overvoltage：With generator operation, when generator output voltage is higher than setting value, sampling is single Sampled signal voltage acquired in member 1 is higher than 2 activation threshold value voltage of threshold cell, and switch control unit 3 exports low potential, makes out Close unit 4 to end, cut off the exciting current of generator excitation winding, meanwhile, switch element 4 exports high potential, passes through resistive mould Block 8 ends state recognition unit 7, the storage capacitor in timing unit 9 is stopped charging, another aspect storage capacitor Reset unit 10 is continued as by the current limiting element in timing unit 9 direct current signal is provided, make the second end pair of reset unit 10 3rd end turns on, its time that a length of storage capacitor electric discharge terminates when turning on is grown for its timing, this state is temporary stable state.

3. Self-resetting turns on：When the storage capacitor electric discharge in timing unit 9 terminates, reset unit recovers cut-off, switch control Unit processed disconnects over the ground, switch control unit is exported high level, and switch element turns on output low level, exciting current quilt therewith Reclose, while state recognition unit 7 is turned on again by resistive module 8, be again storage capacitor charging, also revert to Reset unit 10 provides direct current signal, the 3rd terminal potential of reset unit 10 is pind down by second end, and switch control at this time is single The input terminal low potential of member 3 makes switch control unit 3 export high potential so that the state has been stable state.

A, in order to avoid overcurrent damage, when power tube overcurrent occurs, the signal voltage of power tube output terminal is higher than switch The input terminal activation threshold value voltage of control unit 3, is existed by reset unit (second end turns on the 3rd end) and feedback unit The input terminal high input voltage signal of switch control unit 3, makes switch control unit 3 export low potential, and switch element 4 exports height Current potential, this process are the positive feedback process of signal voltage, and circuit upset is extremely rapid, switch element 4 is ended rapidly, cuts off The exciting current of generator excitation winding, meanwhile, switch element 4 exports high potential, makes state recognition unit by resistive module 8 7 cut-offs, on the one hand make the stopping of the storage capacitor in timing unit 9 charging, another aspect storage capacitor pass through in timing unit 9 Current limiting element continues as reset unit 10 and provides direct current signal, the second end of reset unit 10 is still turned on the 3rd end, its The time that a length of storage capacitor electric discharge terminates during conducting is grown for its timing, this state is temporary stable state.

If C, short circuit releases, circuit enters foregoing state 3..

As shown in fig. 6, the high back-pressure A circuit generator voltage controllers of frequency overcurrent protective can be limited for the third Self-resetting Electrical block diagram.

Switch control unit 3 includes triode Q1 and resistance R3, and the base stage of triode Q1 is as the defeated of switch control unit 3 Enter end, the collector of triode Q1 is connected with resistance R3, output terminal connecting valve list of the collector also as switch control unit 3 The input terminal of member 4, the transmitting extremely common end grounding of triode Q1, the other end of resistance R3 as switch control unit 3 just The positive pole (D+/B+) of extreme connection generator voltage controller,

Feedback unit 6 includes feedback resistance R4, and its one end connects the 3rd of reset unit 4 for the input terminal of feedback unit 6 End, the input terminal for the output terminal connecting valve control unit 3 that the other end is feedback unit 6,

Timing unit 9 includes capacitance C2 and resistance R6, and one end of capacitance C2 is connected with resistance R6, and connecting node is as timing The input terminal of unit 9, the other end of resistance R6 connect the first end of reset unit 10, capacitance as the output terminal of timing unit 9 The other end of C2 is grounded or connects positive pole as the 3rd end of timing unit 9,

Reset unit 10 includes triode Q4, and first end of its base stage as reset unit 10, collector is as reset list The second end of member 10 is connected with the output terminal of switch element 4, threeth end of the emitter as reset unit 10,

2nd, the adjuster course of work is：

1. under-voltage excitation：When generator output voltage (i.e. terminal D+/B+) is less than setting value, resistance R1 connects section with R2 The sampled signal voltage of point (should also include the emitter junction conducting threshold of triode Q1 certainly less than voltage-stabiliser tube D1 activation threshold values voltage Value, for sake of convenience, ignores for the time being), triode Q1 cut-offs make switch control unit 3 export high potential, then power field effect Pipe Q2 saturation conductions connect the exciting current of generator excitation winding, while export low potential.At the same time, the low electricity of Q2 outputs Position turns on triode Q3 by resistance R5, on the one hand drags down switch control unit input terminal electricity by the resistance R4 of feedback unit Position makes switch control unit export high potential so that the state is stable state, and second aspect is the storage capacitor C2 in timing unit 9 Charging, the third aspect provide direct current signal by the current-limiting resistance R6 in timing unit 9 for triode Q4 base stages, make triode Q4 Collector junction positively biased and turn on, on this condition for overvoltage when or the second end of Q4 is ready the conducting of the 3rd end during overcurrent.

2. periodically long cut-off after overvoltage：With generator operation, when generator output voltage is higher than setting value, sampling is single Sampled signal voltage acquired in member 1 is higher than 2 activation threshold value voltage of threshold cell, and switch control unit 3 exports low potential, makes out Close unit 4 to end, cut off the exciting current of generator excitation winding, meanwhile, switch element 4 exports high potential, passes through resistive mould Block 8 ends state recognition unit 7, the storage capacitor C2 in timing unit 9 is stopped charging, another aspect energy storage electricity Hold C2 and triode Q4 offer base currents are continued as by resistance R6, make triode Q4 emitters positively biased, collector junction reverse-biased, so that Turn on triode Q4, a length of storage capacitor C2 is grown by the time that resistance R6 electric discharges terminate for its timing when it is turned on, this shape State is temporary stable state.

3. Self-resetting turns on：When storage capacitor C2 electric discharges terminate, triode Q4 recovers cut-off, from the anti-of power tube drain electrode Supply current is cut off, triode Q1 base currents disappear, and switch control unit 3 is exported high level, and switch element 4 turns on therewith Export low level, exciting current is reclosed, while turns on state recognition unit 7 again by resistive module 8, again for Storage capacitor charging, also revert to the offer direct current signal of reset unit 10, the triode Q4 of reset unit 10 is recovered collector junction Reverse-biased, i.e., switch element 4 has dragged down the input terminal potential of switch control unit 3 by feedback unit 6 makes switch control single Member 3 exports high potential so that the state be stable state, so again for it is over-pressed when or switch control unit is led over the ground during overcurrent It is logical to be ready.

4. overcurrent protection：

A, when power tube overcurrent occurs, the signal voltage of power tube output terminal is higher than the input terminal of switch control unit 3 Activation threshold value voltage, by reset unit and feedback unit in the input terminal high input voltage signal of switch control unit 3, makes out Close control unit 3 export low potential, switch element 4 export high potential, this process be signal voltage positive feedback process, circuit Overturn extremely rapid, switch element 4 is ended rapidly, cut off the exciting current of generator excitation winding, meanwhile, switch element 4 High potential is exported, ends state recognition unit 7 by resistive module 8, on the one hand stops the storage capacitor in timing unit 9 Charging, another aspect storage capacitor continue as reset unit 10 by the current limiting element in timing unit 9 and provide direct current signal, make Reset unit 10 still turns on, its time that a length of storage capacitor electric discharge terminates when turning on is grown for its timing, this state is temporarily steady State.

If C, short circuit releases, circuit enters foregoing state 3..

Fourth aspect, there is provided the 4th kind of Self-resetting can limit the high back-pressure A circuits generator voltage of frequency overcurrent protective and adjust Device.

Embodiment 4, as shown in Figure 7：

The threshold cell 2 has input terminal and output terminal,

The switch control unit 3 includes input, output end and common port,

The switch element 4 has input, output end and ground terminal,

The afterflow unit 5 is fly-wheel diode,

The feedback unit 6 includes input terminal and output terminal,

The timing unit 9 has input, output end and the 3rd end,

The reset unit 10 has first end, second end and the 3rd end,

2nd, the adjuster course of work：

The those skilled in the art of electronic technology field are it can be readily appreciated that such architectural feature, is by the timing list of earlier figures 5 Member 9 inside storage capacitor ground terminal reconfiguration to switch control unit 3 output terminal, and the part after this reconfiguration with it is foregoing The corresponding part of Fig. 3 is consistent, therefore its principle and the course of work see the corresponding literary section of Fig. 3, and remainder is consistent with Fig. 5, Repeated no more for simplicity.

As shown in figure 8, the high back-pressure A circuit voltages adjuster circuit structure of frequency overcurrent protective can be limited for the 4th kind of Self-resetting Schematic diagram.

1st, the structure of the voltage regulator includes, and sampling unit 1 includes resistance R1, R2 and capacitance C1, resistance R1 and R2 string Connection connection, R2 and capacitance C1 are in parallel, and the other end of resistance R1 connects generator voltage controller for the positive terminal of sampling unit Positive pole (D+/B+), the other end of resistance R2 is grounded (i.e. power cathode E) for negative pole end, resistance R1 and R2 are connected in series section Point connects the input terminal of threshold cell 2 for the output terminal of sampling unit；

Switch control unit 3 includes triode Q1, the input terminal of the base stage of triode Q1 as switch control unit 3, and three Input terminal of the collector of pole pipe Q1 as the output terminal connecting valve unit 4 of switch control unit 3, triode Q1 launch extremely Common end grounding,

Timing unit 9 includes capacitance C2 and resistance R6, and one end of capacitance C2 is connected with resistance R6, and connecting node is as timing The input terminal of unit 9, the other end of resistance R6 connect the first end of reset unit 10, capacitance as the output terminal of timing unit 9 Threeth end connecting triode Q1 collector (i.e. switch control unit output terminal) of the other end of C2 as timing unit 9,

2nd, the triode Q4 working conditions of the reset unit 10 of the adjuster course of work are identical with Fig. 6's, timing unit 9 Working condition it is identical with Fig. 4's, remainder is identical with Fig. 6, is omitted here for simplicity.

5th aspect, there is provided the 5th kind of Self-resetting can limit the high back-pressure A circuits generator voltage of frequency overcurrent protective and adjust Device.

Embodiment 5, as shown in figure 9, the high back-pressure A circuit voltage adjusters of frequency overcurrent protective can be limited for the 5th kind of Self-resetting Block diagram.

Sampling unit 1 has positive terminal, negative pole end and output terminal,

Threshold cell 2 has input terminal and output terminal,

Switch element 4 has input, output end and ground terminal,

Afterflow unit 5 is fly-wheel diode,

Feedback unit 6 includes input terminal and output terminal,

Timing unit 9 has input, output end and the 3rd end,

Reset unit 100 has first end, second end and the 3rd end,

The input terminal of the output terminal connecting valve unit 4 of switch control unit 3, the common end grounding of switch control unit 3, The positive pole (D+/B+) of the positive terminal connection generator voltage controller of switch control unit 3,

The first end of the output terminal connection reset unit 100 of timing unit 9, the 3rd end of timing unit 9 are grounded or connect electricity Source cathode,

The 3rd end ground connection of reset unit 100, the input terminal of the second end connecting valve control unit 3 of reset unit 100,

First end, the other end connection status of capacitive module 11 of one end connection reset unit 100 of capacitive module 11 are known The input terminal of other unit 7 or the output terminal of connecting valve unit 4.

2nd, the adjuster course of work：

The circuit is the second end and the 3rd of the access reset unit in parallel between the input terminal and ground of switch control unit 3 End, the output terminal of the first end of reset unit still with timing unit 9 are connected, and the difference of the circuit and circuit shown in earlier figures 2 is： The second end of the reset unit of Fig. 2 circuits and the 3rd end series connection resetted between the common port and ground of switch control unit 3 Journey is to cut off to make the cut-off of switch element 3 reset to realize between ground by the common port to switch control unit 3；And attached drawing 9 This circuit reset process be by between the input terminal and ground to switch control unit 3 turn on (i.e. by feedback signal voltage pair Ground short circuit) cut-off of switch element 3 is resetted to realize；Both approach are different, and purpose is identical.Remainder structure and principle are with before It is identical to state circuit shown in Fig. 2, is omitted herein.

As shown in Figure 10, the high back-pressure A circuits adjuster circuit structure of frequency overcurrent protective can be limited for the 5th kind of Self-resetting to show It is intended to.

Threshold cell 2 includes zener diode D1, its cathode is the input terminal of threshold cell 2, its anode is output terminal The input terminal of connecting valve control unit 3,

Timing unit 9 includes capacitance C2 and resistance R6, and one end of capacitance C2 is connected with resistance R6, and connecting node is as timing The input terminal of unit 9, the other end of resistance R6 connect the first end of reset unit 100, capacitance as the output terminal of timing unit 9 The other end of C2 is grounded or connects positive pole as the 3rd end of timing unit 9,

Reset unit 100 includes triode Q4, Q5 and resistance R7, and the base stage of triode Q4 is reset unit first end, three The emitter of pole pipe Q4, Q5 is connected as the 3rd end of reset unit and is grounded, the collector connecting triode Q5 of triode Q4 Base stage and by resistance R7 connection positive poles, the collector of triode Q5 is controlled as reset unit second end connecting valve Unit input terminal,

Capacitive module 11 includes capacitance C3, the first end of its one end connection reset unit 100, the identification of other end connection status The input terminal of unit 7 or the output terminal of connecting valve unit 4.

2nd, the adjuster course of work：

The circuit is the second end of access reset unit in parallel and the 3rd end between the base stage of triode Q1 and emitter, Output terminal of the first end of reset unit still with timing unit 9 is connected, and the difference of the circuit and circuit shown in earlier figures 2 is：Fig. 2 The second end of the reset unit of circuit and the 3rd end series connection are between the common port and ground of switch control unit 3, reseting procedure It is to cut off to make the cut-off of switch element 3 reset to realize between ground by the common port to switch control unit 3；And attached drawing 9 This circuit reset process is by being turned on (i.e. by feedback signal voltage over the ground between the input terminal and ground to switch control unit 3 Short circuit) cut-off of switch element 3 is resetted to realize：I.e. when storage capacitor C2 electric discharges terminate, triode Q4 cut-offs, Q5 conductings, draw Low triode Q1 base potentials end Q1, and Q1 collectors output high potential makes power tube upset conducting enter stable state；Both ways Footpath is different, and purpose is identical.

It should be noted that the upper end of resistance R7 can be connected on triode Q5 collectors, while in the base stage of triode Q1 Series diode or voltage-stabiliser tube, raise switch control unit input terminal activation threshold value, can likewise ensure that circuit smoothly resets, this The reset circuit of sample still only has these three terminals of first, second, third end, or selects the lower pipe of emitter junction conduction threshold As Q5.

Remainder structure and principle are identical with circuit shown in earlier figures 2, conform to the principle of simplicity herein.

6th aspect, there is provided the 6th kind of Self-resetting can limit the high back-pressure A circuits generator voltage of frequency overcurrent protective and adjust Device.

Embodiment 6, as shown in figure 11, can limit the high back-pressure A circuit voltages of frequency overcurrent protective for the 6th kind of Self-resetting and adjust Device block diagram.

Sampling unit 1 has positive terminal, negative pole end and output terminal,

Threshold cell 2 has input terminal and output terminal,

Switch control unit 3 includes input, output end and common port,

Switch element 4 has input, output end and ground terminal,

Afterflow unit 5 is fly-wheel diode,

Feedback unit 6 includes input terminal and output terminal,

Timing unit 9 has input, output end and the 3rd end,

Reset unit 200 has first end, second end and the 3rd end,

3rd end connecting valve control of the first end, timing unit 9 of the output terminal connection reset unit 200 of timing unit 9 The output terminal of unit 3 processed,

The 3rd end ground connection of reset unit 200, the input terminal of the second end connecting valve control unit 3 of reset unit 200,

First end, the other end connection status of capacitive module 11 of one end connection reset unit 200 of capacitive module 11 are known The input terminal of other unit 7 or the output terminal of connecting valve unit 4.

2nd, the adjuster course of work：

The those skilled in the art of electronic technology field are it can be readily appreciated that such architectural feature, is by the timing list of earlier figures 9 Member 9 inside storage capacitor ground terminal reconfiguration to switch control unit 3 output terminal, and the part after this reconfiguration with it is foregoing The corresponding part of Fig. 3 is consistent, therefore its principle and the course of work see the corresponding literary section of Fig. 3, and remainder is consistent with Fig. 9, Which is not described herein again.

As shown in figure 12, the high back-pressure A circuits adjuster circuit structure of frequency overcurrent protective can be limited for the 6th kind of Self-resetting to show It is intended to.

Timing unit 9 includes capacitance C2 and resistance R6, and one end of capacitance C2 is connected with resistance R6, and connecting node is as timing The input terminal of unit 9, the other end of resistance R6 connect the first end of reset unit 200, capacitance as the output terminal of timing unit 9 Output terminal of the other end of C2 as the 3rd end connecting valve control unit 3 of timing unit 9,

Reset unit 200 includes triode Q4, Q5 and resistance R7, and the base stage of triode Q4 is reset unit first end, three The emitter of pole pipe Q4, Q5 is connected as the 3rd end of reset unit and is grounded, the collector connecting triode Q5 of triode Q4 Base stage and by resistance R7 connection positive poles, the collector of triode Q5 is controlled as reset unit second end connecting valve Unit input terminal,

Capacitive module 11 includes capacitance C3, the first end of its one end connection reset unit 200, the identification of other end connection status The input terminal of unit 7 or the output terminal of connecting valve unit 4.

2nd, adjuster course of work, it can be readily appreciated that such structure is in the timing unit 9 by earlier figures 10 The ground terminal reconfiguration of portion's storage capacitor is to the output terminal of switch control unit 3, part and the corresponding part of earlier figures 4 after reconfiguration Unanimously, its principle and the course of work see the corresponding literary section of Fig. 4, and remainder is consistent with Figure 10, no longer superfluous for simplicity State.

The above embodiment of the utility model is not merely to explanation the utility model, is to the utility model technical side The limitation of the embodiment of case, the invention thinking of persons skilled in the art technical solution according to the present utility model pass through each The obtained various embodiments such as kind deformation, combination, reversal are all fallen within the utility model technical protection scope, this reality It is defined by the claims with new technical protection scope.

Claims

1. a kind of Self-resetting can limit the high back-pressure A circuit generator voltage controllers of frequency overcurrent protective, it is characterised in that including,

The threshold cell 2 has input terminal and output terminal,

The switch element 4 has input, output end and ground terminal,

The afterflow unit 5 is fly-wheel diode,

The feedback unit 6 includes input terminal and output terminal,

The timing unit 9 has input, output end and the 3rd end,

The reset unit 10 has first end, second end and the 3rd end,

The positive terminal of the sampling unit 1 connects the positive pole (D+/B+) of the generator voltage controller, negative pole end ground connection The output terminal of (i.e. power cathode E), the sampling unit connects the input terminal of the threshold cell 2；

The output terminal of the switch control unit 3 connects the input terminal of the switch element 4, the public affairs of the switch control unit 3 End connects the second end of the reset unit 10 altogether, and the positive terminal of the switch control unit 3 connects the generator voltage tune The positive pole (D+/B+) of device is saved,

The ground terminal of the switch element 4 is grounded, the output terminal of the switch element 4 is as the generator voltage controller Excitation con-trol end F, for controlling the cold end of A circuit generator excitation windings,

The cathode of the fly-wheel diode connects the anode connection institute of the output terminal of the switch element 4, the fly-wheel diode The positive pole (D+/B+) of generator voltage controller is stated,

The input terminal of the feedback unit 6 connects the output terminal connection of the output terminal of the switch element 4, the feedback unit 6 The input terminal of the switch control unit 3,

The positive terminal of the state recognition unit 7 connects positive pole (D+/B+), the shape of the generator voltage controller The input terminal of state recognition unit 7 connects the output terminal of the switch element 4, the state recognition list by the resistive module 8 The output terminal of member 7 connects the input terminal of the timing unit 9,

The output terminal of the timing unit 9 connects the first end of the reset unit 10, the 3rd end ground connection of the timing unit 9 Or positive pole is connect,

The 3rd end ground connection of the reset unit 10,

One end of the capacitive module 11 connects the other end connection of the first end of the reset unit 10, the capacitive module 11 The input terminal of the state recognition unit 7 or the output terminal of the connection switch element 4.

2. Self-resetting as claimed in claim 1 can limit the high back-pressure A circuit generator voltage controllers of frequency overcurrent protective, it is special Sign is,

The sampling unit 1 includes resistance R1, R2 and capacitance C1, and the resistance R1 and R2 is connected in series, the resistance R2 and electricity Hold C1 parallel connections, the other end of the resistance R1 connects the positive pole (D of generator voltage controller for the positive terminal of sampling unit +/B+), the other end of the resistance R2 be that to be connected in series node be to adopt by negative pole end ground connection (i.e. power cathode E), resistance R1 and R2 The input terminal of the output terminal connection threshold cell 2 of sample unit,

The threshold cell 2 includes zener diode D1, and the zener diode D1 anode are the input terminal of threshold cell 2, institute Stating zener diode D1, just extremely output terminal connects the input terminal of the switch control unit 3,

The switch control unit 3 includes triode Q1 and resistance R3, and the base stage of the triode Q1 is as switch control unit 3 Input terminal, the collector of the triode Q1 connects with resistance R3, and the triode Q1 collectors are also single as switch control The input terminal of the output terminal connecting valve unit 4 of member 3, the transmitting extremely common port connection reset unit 10 of the triode Q1 Second end, the other end of the resistance R3 connect the power supply of generator voltage controller as the positive terminal of switch control unit 3 Cathode (D+/B+),

The switch element 4 includes source electrode the connecing as switch element 4 of power field effect pipe Q2, the power field effect pipe Q2 Excitation control of the drain electrode of ground terminal, the power field effect pipe Q2 as output terminal, that is, generator voltage controller of switch element 4 End F processed, for controlling the cold end of A circuit generator excitation windings,

The afterflow unit 5 is sustained diode 2, the output terminal of the cathode connecting valve unit 4 of the sustained diode 2, The positive pole (D+/B+) of the anode connection generator voltage controller of the sustained diode 2,

Opened for the input terminal connection of feedback unit 6 one end that the feedback unit 6 includes feedback resistance R4, the feedback resistance R4 Output terminal, the feedback resistance R4 other ends for closing unit 4 are defeated for the output terminal connecting valve control unit 3 of feedback unit 6 Enter end,

The state recognition unit 7 includes triode Q3, and the positive terminal of the triode Q3 transmittings extremely state recognition unit 7 connects Connect the positive pole (D+/B+) of generator voltage controller, the input terminal that the base stage of the triode Q3 is state recognition unit 7 Pass through the output terminal of resistive 8 connecting valve unit 4 of module, the output of the current collection extremely state recognition unit 7 of the triode Q3 The input terminal of end connection timing unit 9,

The timing unit 9 includes capacitance C2 and resistance R6, one end of the capacitance C2 are connected with resistance R6, connecting node conduct The input terminal of the timing unit 9, the other end of the resistance R6 is as the output terminal connection reset unit 10 of timing unit 9 First end, the other end of the capacitance C2 are grounded or connect positive pole as the 3rd end of the timing unit 9,

The reset unit 10 includes first end of the base stage of triode Q4, the triode Q4 as reset unit 10, described Second end of the collector of triode Q4 as reset unit 10, the emitter of the triode Q4 as reset unit 10 Three ends are grounded,

The capacitive module 11 includes the first end of one end connection reset unit 10 of capacitance C3, the capacitance C3, the capacitance The C3 other ends connect the input terminal of the state recognition unit 7 or the output terminal of the connection switch element 4.

3. a kind of Self-resetting can limit the high back-pressure A circuit generator voltage controllers of frequency overcurrent protective, it is characterised in that including,

The threshold cell 2 has input terminal and output terminal,

The switch control unit 3 includes input, output end and common port,

The switch element 4 has input, output end and ground terminal,

The afterflow unit 5 is fly-wheel diode,

The feedback unit 6 includes input terminal and output terminal,

The timing unit 9 has input, output end and the 3rd end,

The reset unit 10 has first end, second end and the 3rd end,

The output terminal of the switch control unit 3 connects the input terminal of the switch element 4, the public affairs of the switch control unit 3 End connects the second end of the reset unit 10 altogether,

The positive terminal of the state recognition unit 7 connects positive pole (D+/B+), the shape of the generator voltage controller The input terminal of state recognition unit 7 connects the output terminal of the switch element 4, the state recognition list by the resistive module 8 The output terminal of member 7 connects the input terminal of the timing unit 9, and the output terminal of the timing unit 9 connects the reset unit 10 First end, the 3rd end of the timing unit 9 connect the output terminal of the switch control unit,

The 3rd end ground connection of the reset unit 10,

4. Self-resetting as claimed in claim 3 can limit the high back-pressure A circuit generator voltage controllers of frequency overcurrent protective, it is special Sign is,

The sampling unit 1 includes resistance R1, R2 and capacitance C1, and the resistance R1 and R2 is connected in series, the resistance R2 and electricity Hold C1 parallel connections, the other end of the resistance R1 connects the positive pole (D of generator voltage controller for the positive terminal of sampling unit +/B+), the other end of the resistance R2 is grounded (i.e. power cathode E) for negative pole end, the resistance R1 and R2 is connected in series node The input terminal of threshold cell 2 is connected for the output terminal of sampling unit；

The threshold cell 2 includes zener diode D1, and the zener diode D1 anode are the input terminal of threshold cell 2, institute Zener diode D1 just extremely input terminals of output terminal connecting valve control unit 3 are stated,

The switch control unit 3 includes input of the base stage of triode Q1, the triode Q1 as switch control unit 3 End, the input terminal of the collector of the triode Q1 as the output terminal connecting valve unit 4 of switch control unit 3, described three The second end of the transmitting of pole pipe Q1 extremely common port connection reset unit 10,

The switch element 4 includes source electrode the connecing as switch element 4 of power field effect pipe Q2, the power field effect pipe Q2 The excitation con-trol of ground terminal, power field effect pipe Q2 drain electrodes as output terminal, that is, generator voltage controller of switch element 4 F is held, for controlling the cold end of A circuit generator excitation windings,

The afterflow unit 5 is sustained diode 2, the output terminal of the 2 cathode connecting valve unit 4 of sustained diode, institute The positive pole (D+/B+) of 2 anode of sustained diode connection generator voltage controller is stated,

Opened for the input terminal connection of feedback unit 6 one end that the feedback unit 6 includes feedback resistance R4, the feedback resistance R4 Close the output terminal of unit 4, the feedback resistance R4 other ends connect the switch control unit 3 for the output terminal of feedback unit 6 Input terminal,

The state recognition unit 7 includes the positive terminal of the transmitting extremely state recognition unit 7 of triode Q3, the triode Q3 Connect the positive pole (D+/B+) of generator voltage controller, the input that the base stage of the triode Q3 is state recognition unit 7 End is connected to output terminal, the triode Q3 current collections extremely state recognition list of switch element 4 by the resistance R5 of resistive module 8 The input terminal of the output terminal connection timing unit 9 of member 7,

The timing unit 9 includes capacitance C2 and resistance R6, one end of the capacitance C2 are connected with resistance R6, connecting node conduct The input terminal of timing unit 9, the other end of the resistance R6 connect the first of reset unit 10 as the output terminal of timing unit 9 End, the other end of the capacitance C2 are connected as the 3rd end of the timing unit 9 with the collector of the triode Q1,

The reset unit 10 includes first end of the base stage of triode Q4, the triode Q4 as reset unit 10, described Second end of the collector of triode Q4 as reset unit 10, the emitter of the triode Q4 is as the reset unit 10 The 3rd end ground connection,

One end of the capacitive module 11 including capacitance C3, the capacitance C3 connects the first end, described of the reset unit 10 The capacitance C3 other ends connect the input terminal of the state recognition unit 7 or the output terminal of the connection switch element 4.

5. a kind of Self-resetting can limit the high back-pressure A circuit generator voltage controllers of frequency overcurrent protective, it is characterised in that including,

The threshold cell 2 has input terminal and output terminal,

The switch element 4 has input, output end and ground terminal,

The afterflow unit 5 is fly-wheel diode,

The feedback unit 6 includes input terminal and output terminal,

The timing unit 9 has input, output end and the 3rd end,

The reset unit 10 has first end, second end and the 3rd end,

The output terminal of the switch control unit 3 connects the input terminal of the switch element 4, the public affairs of the switch control unit 3 End ground connection altogether, the positive terminal of the switch control unit 3 connect the positive pole (D+/B+) of the generator voltage controller,

The input terminal of the feedback unit 6 connects the output terminal connection at the 3rd end of the reset unit 10, the feedback unit 6 The input terminal of the switch control unit 3,

6. Self-resetting as claimed in claim 5 can limit the high back-pressure A circuit generator voltage controllers of frequency overcurrent protective, it is special Sign is,

The sampling unit 1 includes resistance R1, R2 and capacitance C1, and the resistance R1 and R2 is connected in series, the resistance R2 and electricity Hold C1 parallel connections, the other end of the resistance R1 connects the positive pole (D of generator voltage controller for the positive terminal of sampling unit +/B+), the other end of the resistance R2 is grounded (i.e. power cathode E) for negative pole end, the resistance R1 and R2 is connected in series node The input terminal of threshold cell 2 is connected for the output terminal of the sampling unit；

The anode that the threshold cell 2 includes zener diode D1, the zener diode D1 is the input of threshold cell 2 End, the just extremely input terminal of output terminal connecting valve control unit 3 of the zener diode D1,

The switch control unit 3 includes triode Q1 and resistance R3, and the base stage of the triode Q1 is as switch control unit 3 Input terminal, the collector of triode Q1 connects with resistance R3, and the collector of the triode Q1 is also used as switch control unit 3 Output terminal connecting valve unit 4 input terminal, the transmitting extremely common end grounding of the triode Q1, the resistance R3's is another Positive pole (D+/B+) of the one end as the positive terminal connection generator voltage controller of switch control unit 3,

The switch element 4 includes source electrode the connecing as switch element 4 of power field effect pipe Q2, the power field effect pipe Q2 Excitation con-trol end of the drain electrode of ground terminal, power field effect pipe Q2 as output terminal, that is, generator voltage controller of switch element 4 F, for controlling the cold end of A circuit generator excitation windings,

One end that the feedback unit 6 includes feedback resistance R4, the feedback resistance R4 is multiple for the input terminal connection of feedback unit 6 3rd end of bit location 4, the feedback resistance R4 other ends are single for the output terminal connection switch control of the feedback unit 6 The input terminal of member 3,

The state recognition unit 7 includes the positive terminal of the transmitting extremely state recognition unit 7 of triode Q3, the triode Q3 Connect the positive pole (D+/B+) of generator voltage controller, the input that the base stage of the triode Q3 is state recognition unit 7 End by the output terminal of resistive 8 connecting valve unit 4 of module, the triode Q3 current collection extremely state recognition unit 7 it is defeated Outlet connects the input terminal of timing unit 9,

The timing unit 9 includes capacitance C2 and resistance R6, one end of the capacitance C2 are connected with resistance R6, connecting node conduct The input terminal of timing unit 9, the other end of the resistance R6 connect the first of reset unit 10 as the output terminal of timing unit 9 End, the other end of the capacitance C2 are grounded or connect positive pole as the 3rd end of the timing unit 9,

The reset unit 10 includes first end of the base stage of triode Q4, the triode Q4 as reset unit 10, described The collector of triode Q4 is connected as the second end of reset unit 10 with the output terminal of switch element 4, the triode Q4's Threeth end of the emitter as reset unit 10,

7. a kind of Self-resetting can limit the high back-pressure A circuit generator voltage controllers of frequency overcurrent protective, it is characterised in that including,

The threshold cell 2 has input terminal and output terminal,

The switch control unit 3 includes input, output end and common port,

The switch element 4 has input, output end and ground terminal,

The afterflow unit 5 is fly-wheel diode,

The feedback unit 6 includes input terminal and output terminal,

The timing unit 9 has input, output end and the 3rd end,

The reset unit 10 has first end, second end and the 3rd end,

The output terminal of the switch control unit 3 connects the input terminal of the switch element 4, the public affairs of the switch control unit 3 End ground connection altogether,

The output terminal of the timing unit 9 connects the 3rd end connection of the first end of the reset unit 10, the timing unit 9 The output terminal of the switch control unit 3,

8. Self-resetting as claimed in claim 7 can limit the high back-pressure A circuit generator voltage controllers of frequency overcurrent protective, it is special Sign is,

The switch control unit 3 includes input of the base stage of triode Q1, the triode Q1 as switch control unit 3 End, the input terminal of the collector of the triode Q1 as the output terminal connecting valve unit 4 of switch control unit 3, described three The transmitting of pole pipe Q1 extremely common end grounding,

The switch element 4 includes source electrode the connecing as switch element 4 of power field effect pipe Q2, the power field effect pipe Q2 Drain electrode the encouraging as output terminal, that is, generator voltage controller of the switch element 4 of ground terminal, the power field effect pipe Q2 Magnetic control end F, for controlling the cold end of A circuit generator excitation windings,

One end that the feedback unit 6 includes feedback resistance R4, the feedback resistance R4 is multiple for the input terminal connection of feedback unit 6 3rd end of bit location 4, the feedback resistance R4 other ends connect the switch control unit 3 for the output terminal of feedback unit 6 Input terminal,

The state recognition unit 7 includes the positive terminal of the transmitting extremely state recognition unit 7 of triode Q3, the triode Q3 Connect the positive pole (D+/B+) of generator voltage controller, the input that the base stage of the triode Q3 is state recognition unit 7 End connects the current collection extremely state recognition unit 7 of the output terminal of the switch element 4, the triode Q3 by resistive module 8 Output terminal connect the input terminal of the timing unit 9,

The timing unit 9 includes capacitance C2 and resistance R6, one end of the capacitance C2 are connected with resistance R6, connecting node conduct The input terminal of timing unit 9, the other end of the resistance R6 connect the first of reset unit 10 as the output terminal of timing unit 9 End, the other end of the capacitance C2 connect the triode Q1 collectors (i.e. switch control as the 3rd end of the timing unit 9 Unit output terminal processed),

The reset unit 10 includes first end of the base stage of triode Q4, the triode Q4 as reset unit 10, described The collector of triode Q4 is connected as the second end of the reset unit 10 with the output terminal of the switch element 4, and described three Threeth end of the emitter of pole pipe Q4 as the reset unit 10,

9. a kind of Self-resetting can limit the high back-pressure A circuit generator voltage controllers of frequency overcurrent protective, it is characterised in that including,

The threshold cell 2 has input terminal and output terminal,

The switch element 4 has input, output end and ground terminal,

The afterflow unit 5 is fly-wheel diode,

The feedback unit 6 includes input terminal and output terminal,

The timing unit 9 has input, output end and the 3rd end,

The reset unit 100 has first end, second end and the 3rd end,

The output terminal of the timing unit 9 connects the first end of the reset unit 100, the 3rd termination of the timing unit 9 Ground connects positive pole,

The 3rd end ground connection of the reset unit 100, the second end of the reset unit 100 connect the switch control unit 3 Input terminal,

One end of the capacitive module 11 connects the first end of the reset unit 100, the other end of the capacitive module 11 connects Connect the input terminal of the state recognition unit 7 or the output terminal of the connection switch element 4.

10. a kind of Self-resetting can limit the high back-pressure A circuit generator voltage controllers of frequency overcurrent protective, it is characterised in that including,

The threshold cell 2 has input terminal and output terminal,

The switch control unit 3 includes input, output end and common port,

The switch element 4 has input, output end and ground terminal,

The afterflow unit 5 is fly-wheel diode,

The feedback unit 6 includes input terminal and output terminal,

The timing unit 9 has input, output end and the 3rd end,

The reset unit 200 has first end, second end and the 3rd end,

The output terminal of the timing unit 9 connects the first end of the reset unit 200, the 3rd end of the timing unit 9 connects The output terminal of the switch control unit 3 is connect,

The 3rd end ground connection of the reset unit 200, the second end of the reset unit 200 connect the switch control unit 3 Input terminal,

One end of the capacitive module 11 connects the first end of the reset unit 200, the other end of the capacitive module 11 connects Connect the input terminal of the state recognition unit 7 or the output terminal of the connection switch element 4.