CN201656439U - Generator failure protection circuit of regulator and voltage regulator thereof - Google Patents
Generator failure protection circuit of regulator and voltage regulator thereof Download PDFInfo
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- CN201656439U CN201656439U CN2010201500933U CN201020150093U CN201656439U CN 201656439 U CN201656439 U CN 201656439U CN 2010201500933 U CN2010201500933 U CN 2010201500933U CN 201020150093 U CN201020150093 U CN 201020150093U CN 201656439 U CN201656439 U CN 201656439U
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Abstract
The utility model relates to a generator voltage regulator for vehicles, in particular to a generator failure protection circuit of a regulator and an alternator voltage regulator thereof for vehicles. The generator failure protection circuit comprises a signal detection and co-treatment circuit and a power type protection application device, wherein the signal detection and co-treatment circuit is provided with two fault signal detection terminals which are respectively connected with the base electrode of a power switching tube in a regulator circuit and the F end of the regulator; the detected signal is mixed, and the detected fault signal is combined to back stage output; the power type protection application device is connected to the exciting current output end D+ of the generator and the power output end B+ of the generator or connected between the power supply anode of the regulator and the power ground of the regulator. The failure protection circuit is combined with the current various regulator circuits to avoid voltage rise when the vehicle power supply system is out of control, so that the electrical system and the electrical appliance of a vehicle can be prevented from being damaged by high voltage, and safe driving of the motor vehicle can be ensured.
Description
One, technical field: the utility model relates to the alternator for vehicle voltage regulator, particularly relates to a kind of generator runaway protection circuit and vehicle alternator voltage regulator thereof of adjuster.
Two, background technology: the various mechanically movings that with the automobile are representative at present provide working power by subsidiary voluntarily alternating current generator to car load entirely, and the output voltage of alternating current generator is regulated by voltage regulator entirely and is made it stable in allowed limits to guarantee car load electrical equipment operate as normal, and present widely used alternator voltage regulator under normal circumstances can play voltage-regulation and do in order to satisfy the instructions for use of automobile.But, generator can be in runaway condition immediately when the regulating action that makes adjuster owing to accidental cause loses efficacy, this moment, the output voltage of generator sharply was elevated in very short time more than tens of even up to a hundred volts owing to can not get regulating the control meeting, various electrical equipment on the automobile can burn in moment in this state, storage battery also can be owing to overcharging very fast damage, thereby cause the automobile disablement.The not only serious threat and affect the normal use of automobile of generator hardover failure is returned the car owner and is caused very big economic loss, thus people always the method for seeking address this problem.And because generator is because the regulatory function of adjuster lost efficacy or the control action conductively-closed of adjuster when out of control, the scheme of going back the neither one maturation at present both at home and abroad can reasonably address this problem, and does not more have a generator output adjuster out of control that can effectively prevent to come out.
Three, utility model content:
The utility model is at the prior art deficiency; a kind of generator voltage runaway protection circuit is proposed; by this runaway protection circuit is combined with present various adjuster circuits, just can make this adjuster have generator lost-control protection function, further ensured the motor vehicles driving safety.
The technical scheme that the utility model adopted:
A kind of adjuster generator runaway protection circuit; contain the protection of input and mixed processing circuit and power-type and implement device; described input and mixed processing circuit are provided with two fault-signal detection terminal b; F; connect the base stage of power switch pipe in the adjuster circuit and the F end of adjuster respectively; detected signal is carried out mixed processing also detecting fault-signal and level output backward; input is connected the power-type protection and implements the device input with mixed processing circuit signal output, the power-type protection is implemented device and is connected between the positive source and power supply ground of adjuster.
Described adjuster generator runaway protection circuit, two fault-signal detection terminal b, F pass through resistance R respectively
6, R
7The base stage of the first order that is of coupled connections amplifier transistor Q3; the collector output of first order amplifier transistor Q3 connects the base stage of second level amplifier transistor Q4, and the emitter-base bandgap grading output of second level amplifier transistor Q4 connects the trigger control end that device Q5 is implemented in the power-type protection.
Described adjuster generator runaway protection circuit contains the protection time-delay and recovers control circuit automatically, and two fault-signal detection terminal b, F pass through resistance R respectively
6, R
7The be of coupled connections base stage of amplifier transistor Q3, the load resistance R of amplifier transistor Q3
8By diode D
4The positive source that connects adjuster, diode D
4Positive pole connects the adjuster positive source, load resistance R
8With diode D
4Be provided with a delay capacitor C between tie point and the adjuster power supply ground
3, the collector output of amplifier transistor Q3 links to each other with the input that device power tube Q5 is implemented in protection, the input of power tube Q5 to the adjuster power supply be connected to clamp voltage-stabiliser tube D
5
Described adjuster generator runaway protection circuit, two fault-signal detection terminal b, F pass through resistance R respectively
6, R
7The inverting input of a voltage comparator is of coupled connections; the input in the same way of described voltage comparator connects reference voltage source; the voltage comparator output connects the base stage of amplifier transistor Q4, and the emitter-base bandgap grading output of described amplifier transistor Q4 connects the trigger control end that device Q5 is implemented in the power-type protection.
A kind of vehicle alternator voltage regulator that contains described generator runaway protection circuit contains sample circuit, sample resistance R
1, R
2Be connected between excitatory output D+ of adjuster power supply ground E and generator or the power take-off B+ sample resistance R
1, R
2Node and adjuster power supply ground between be connected voltage-stabiliser tube D
1And resistance R
3The voltage shift match circuit of forming, voltage-stabiliser tube D
1With resistance R
3Node connect the base stage of first order amplifier transistor Q1 in the amplifying circuit, the collector electrode output of first order amplifier transistor Q1 connects the base stage of second level amplifier transistor Q2, the emitter of second level amplifier transistor Q2 connects adjuster power supply ground, and its collector output is by diode D
2Connect the adjuster positive source, sample resistance R
1, R
2Tie point and conditioner outlet end be second level amplifier transistor Q2 the emitter-base bandgap grading output between be connected with feedback resistance R
5, described generator runaway protection circuit is connected in the aforementioned adjuster circuit, and two fault-signal detection terminal b, F connect the control base stage of power switch pipe in the adjuster circuit and the F end of adjuster respectively, pass through resistance R
6, R
7The base stage of first order amplifier transistor Q3 in the runaway protection circuit is of coupled connections; the collector output of first order amplifier transistor Q3 connects the base stage of second level amplifier transistor Q4, and the emitter-base bandgap grading output of second level amplifier transistor Q4 connects the trigger control end that device Q5 is implemented in the power-type protection.
A kind of vehicle alternator voltage regulator that contains described generator runaway protection circuit contains sample circuit, sample resistance R
1, R
2Be connected between excitatory output D+ of adjuster power supply ground E and generator or the power take-off B+ sample resistance R
1, R
2Node and power supply ground between be connected voltage-stabiliser tube D
1And resistance R
3The voltage shift match circuit of forming, voltage-stabiliser tube D
1With resistance R
3Node connect the base stage of first order amplifier transistor Q1 in the amplifying circuit, the collector electrode output of first order amplifier transistor Q1 connects the base stage of second level amplifier transistor Q2, the emitter of second level amplifier transistor Q2 connects power supply ground, and its collector output is by diode D
2Connect positive source, sample resistance R
1, R
2Tie point and conditioner outlet end be second level amplifier transistor Q2 the emitter-base bandgap grading output between be connected with feedback resistance R
5, described generator runaway protection circuit is connected in the aforementioned adjuster circuit, and two fault-signal detection terminal b, F connect the control base stage of power switch pipe in the adjuster circuit and the F end of adjuster respectively, pass through resistance R
6, R
7The base stage of first order amplifier transistor Q3 in the runaway protection circuit is of coupled connections; the collector output of first order amplifier transistor Q3 connects the base stage of second level amplifier transistor Q4, and the emitter-base bandgap grading output of second level amplifier transistor Q4 connects the trigger control end that device Q5 is implemented in the power-type protection.
A kind of vehicle alternator voltage regulator that contains described generator runaway protection circuit is by resistance R
5, diode D
1Form voltage stabilizing circuit, sample resistance R
1, R
2Be connected between excitatory output D+ of power supply ground and generator or the power take-off B+ sample resistance R
1, R
2Node link to each other with the inverting input of comparator IC, be connected in the reference signal sample resistance R of voltage stabilizing circuit output end of pressure-stabilizing
3, R
4Between node link to each other with the in-phase input end of comparator IC, the output of comparator IC links to each other with the control end of power tube Q2, its collector output is by diode D
2Connect positive source, described adjuster runaway protection circuit is connected in the aforementioned adjuster circuit, and two fault-signal detection terminal b, F connect the control base stage of power switch pipe Q2 in the adjuster circuit and the F end of adjuster respectively, pass through resistance R
6, R
7The inverting input that connects the comparator AR in the protective circuit, the in-phase input end of comparator AR connects resistance R
11, R
12, R
11, R
12Be connected in series in diode D in power supply ground and the voltage stabilizing circuit
1, resistance R
5The node place, the output of comparator AR connects the base stage of transistor Q4, the emitter-base bandgap grading output of transistor Q4 connects the trigger control end that device Q5 is implemented in the power-type protection.
A kind of vehicle alternator voltage regulator that contains described adjuster runaway protection circuit contains sample circuit, sample resistance R
1, R
2Be connected between power supply ground E and excitatory output D+ of generator or power take-off B+ R
1, R
2Node and power supply ground between be connected voltage-stabiliser tube D
1And resistance R
3The voltage shift match circuit of forming, voltage-stabiliser tube D
1With resistance R
3Node connect the base stage of first order amplifier transistor Q1 in the amplifying circuit, the collector electrode output of first order amplifier transistor Q1 connects the base stage of second level amplifier transistor Q2, the emitter of second level amplifier transistor Q2 connects power supply ground, its collector output connects positive source, sample resistance R by diode D2
1, R
2Tie point and conditioner outlet end be second level amplifier transistor Q2 the emitter-base bandgap grading output between be connected with feedback resistance R
5, described adjuster runaway protection circuit is connected in the aforementioned adjuster circuit, and two fault-signal detection terminal b, F connect the control base stage of power switch pipe in the adjuster circuit and the F end of adjuster respectively, pass through resistance R
6, R
7Be of coupled connections transistor Q3 in lost-control protection and the restore circuit, the load resistance R of transistor Q3
8By diode D
4Connect power supply, diode D
4Positive pole connects power supply, load R
8With diode D
4Be provided with a delay capacitor C between tie point and the power supply ground
3, the output of transistor Q3 links to each other with the input that power tube Q5 is implemented in protection, is connected to clamp voltage-stabiliser tube D over the ground at the input of power tube Q5
5
A kind of vehicle alternator voltage regulator that contains described generator runaway protection circuit is by resistance R
5, diode D
1Form voltage stabilizing circuit, sample resistance R
1, R
2Be connected between excitatory output D+ of power supply ground E and generator or the power take-off B+ sample resistance R
1, R
2Node link to each other with the inverting input of comparator IC, be connected in the reference signal sample resistance R of voltage stabilizing circuit output end of pressure-stabilizing
3, R
4Between node link to each other with the in-phase input end of comparator IC, the output of comparator IC links to each other with the control end of power tube Q2, its collector output is by diode D
2Connect positive source, described adjuster runaway protection circuit is connected in the aforementioned adjuster circuit, and two fault-signal detection terminal b, F connect the control base stage of power switch pipe Q2 in the adjuster circuit and the F end of adjuster respectively, pass through resistance R
6, R
7The inverting input that connects the comparator AR in the protective circuit, the in-phase input end of comparator AR connects resistance R
11, R
12, R
11, R
12Be connected in series in adjuster ground E and diode D
1, resistance R
5The node place, the output of comparator AR connects the input control end that device Q5 is implemented in the protection of fet power type, the output load resistance R of comparator AR
8By diode D
4Connect power supply, diode D
4Positive pole connects power supply, load resistance R
8With diode D
4Be provided with a delay capacitor C between tie point and the power supply ground
3, the input of implementing device Q5 in field effect power-type protection to the adjuster power supply be connected to clamp voltage-stabiliser tube D
5
Useful good effect of the present utility model:
1, the utility model generator runaway protection circuit and adjuster with generator lost-control protection function; can effectively avoid the voltage of automobile power system when out of control to raise; thereby protection automotive electric system and electrical equipment are not damaged by high pressure, have ensured motor-driven vehicle going safety.This protective circuit action when adjuster makes the regulated value that generating voltage is elevated to adjuster to the exciting curent of generator is out of hand, the exciting curent that cuts off generator makes loss of exicitation forfeiture generating capacity.
2, the utility model generator runaway protection circuit and controller structure are simple, and cost is low, help popularizing, and are applied to the voltage-regulation of automotive alternator, will produce good economic and social benefit.
Four, description of drawings:
Fig. 1-1: the utility model generator runaway protection circuit structural principle block diagram
Fig. 1-2: have the generator runaway protection circuit structure block diagram that protection recovers delay circuit
Fig. 2: the utility model generator runaway protection circuit (protected location) and existing adjuster connected mode
Fig. 3: present widely used automobile alternator voltage regulator typical circuit schematic diagram
Fig. 4: one of the utility model generator runaway protection circuit structure principle chart
Fig. 5: the another kind of connected mode when generator runaway protection circuit shown in Figure 4 uses
Fig. 6: two of the utility model generator runaway protection circuit structure principle chart
Fig. 7: three of the utility model generator runaway protection circuit structure principle chart
Fig. 8: the utlity model has one of voltage modulator circuit schematic diagram of generator lost-control protection function
Fig. 9: the utlity model has generator lost-control protection function the voltage modulator circuit schematic diagram two
Figure 10: the utlity model has generator lost-control protection function the voltage modulator circuit schematic diagram three
Figure 11: the utlity model has generator lost-control protection function the voltage modulator circuit schematic diagram four
Figure 12: the utlity model has generator lost-control protection function the voltage modulator circuit schematic diagram five
Five, embodiment:
Embodiment one: referring to Fig. 1-1; Fig. 2; the utility model adjuster generator runaway protection circuit; contain the protection of input and mixed processing circuit and power-type and implement device; described input and mixed processing circuit are provided with two fault-signal detection terminal b; F; connect the base stage of power switch pipe in the adjuster circuit and the F end of adjuster respectively; detected signal is carried out mixed processing also detecting fault-signal and level output backward; input is connected the power-type protection and implements the device input with mixed processing circuit signal output, described power-type protection is implemented device and is connected between the positive source and power supply ground of adjuster.
Embodiment two: referring to Fig. 1-1, Fig. 4, Fig. 5, and the adjuster generator runaway protection circuit of present embodiment, two fault-signal detection terminal b, F pass through resistance R respectively
6, R
7The base stage of the first order that is of coupled connections amplifier transistor Q3; the collector output of first order amplifier transistor Q3 connects the base stage of second level amplifier transistor Q4, and the emitter-base bandgap grading output of second level amplifier transistor Q4 connects the trigger control end that device Q5 is implemented in the power-type protection.According to the generator Structure difference, the power-type protection is implemented the output of device or is connected the exciting curent output D+ of generator or the positive source of connection adjuster.In the circuit, fault-signal detection terminal b, F connect the b utmost point and the c utmost point (being the F end of adjuster) of power switch pipe in the adjuster circuit respectively.
For the internal earth adjuster, operation principle is identical with the external earth adjuster, and just circuit polarities is opposite, and used element conduction polarity is opposite, so as long as change circuit and related elements polarity can adapt to.When the generator exciting curent is provided by B+, should add a suitable fusing fuse in the circuit on request.
Embodiment three: referring to Fig. 1-2, Fig. 7, the adjuster generator runaway protection circuit of present embodiment contains the protection time-delay and recovers control circuit automatically, and two fault-signal detection terminal b, F pass through resistance R respectively
6, R
7The be of coupled connections base stage of amplifier transistor Q3, the load resistance R of amplifier transistor Q3
8By diode D
4The positive source that connects adjuster, diode D
4Positive pole connects the adjuster positive source, load resistance R
8With diode D
4Be provided with a delay capacitor C between tie point and the adjuster power supply ground
3, the collector output of amplifier transistor Q3 links to each other with the input that device power tube Q5 is implemented in protection, the input of power tube Q5 to the adjuster power supply be connected to clamp voltage-stabiliser tube D5.
Transistor Q3, Q4 in the circuit can select the high withstand voltage low-power transistor of 2N5551 for use, also can adopt the little merit metal-oxide-semiconductor of 2N7000 series.Power tube Q5 can select model controllable silicon or MOS type fet power pipes such as IRF3710, IRF540 such as BT151, TXN0512 for use.Transistor Q4 is an emitter follower, electrifies and banishes big effect, and alleviating the load capacity of Q3, if the power tube Q5 trigger current of selecting for use in actual the use is less, then transistor Q4 and resistance R
9Can omit.Among the figure, resistance R
6, R
7Can insert electric capacity over the ground with the connected node place of the base stage of transistor Q3, the collector electrode of transistor Q4 and power tube Q5 control utmost point node place can insert resistance over the ground, can further improve the functional reliability of circuit.
Embodiment four: referring to Fig. 1-1, Fig. 6, the adjuster generator runaway protection circuit of present embodiment adopts voltage comparator ic.Two fault-signal detection terminal b, F pass through resistance R respectively
6, R
7The inverting input of voltage comparator is of coupled connections; the Vz of input in the same way of described voltage comparator connects reference voltage source; the voltage comparator output connects the base stage of amplifier transistor Q4, and the emitter-base bandgap grading output of described amplifier transistor Q4 connects the trigger control end that device Q5 is implemented in the power-type protection.
The generator runaway protection circuit of the utility model adjuster, when generator just often, the output voltage of adjuster circuit operate as normal regulator generator is in normal condition, runaway protection circuit is failure to actuate, just the working condition of monitor regulator and generator.When hardover failure appears in generator or adjuster; as long as the generating voltage of generator is lower than the regulated value of adjuster; this protective circuit just is failure to actuate; when having only storage battery to be filled generating voltage to reach regulated value; protective circuit can be moved; making exciting curent in the generator magnetizing coil by the excitatory supply current of shorted to earth generator is zero, or cuts off method such as excitatory supply current and allow generator not have exciting curent generation outage output.Protect the effect that recovers delay circuit to be, recover delay circuit during protection and start working, protection is removed behind the certain hour to be protected, and adjuster enters normal operating conditions, if the FE short trouble is not removed at this moment, will protect once more, so goes round and begins again.
Three main binding posts of adjuster act as: D+/B+: the excitatory output of sending and receiving motor or the terminals of working power are provided for adjuster and magnetizing coil by fuse by storage battery.F: the adjusting output control terminal of adjuster is used for controlling the exciting curent of generator.E: the ground connection of adjuster (bonding) end.
Embodiment five: referring to Fig. 8, present embodiment is the vehicle alternator voltage regulator that contains the generator runaway protection circuit, is aforementioned generator runaway protection circuit and the application that combines of existing typical generator voltage modulator circuit shown in Figure 3.Contain sample circuit, sample resistance R
1, R
2Be connected between excitatory output D+ of adjuster power supply ground and generator or the power take-off B+ sample resistance R
1, R
2Node and adjuster power supply ground between be connected voltage-stabiliser tube D
1And resistance R
3The voltage shift match circuit of forming, voltage-stabiliser tube D
1With resistance R
3Node connect the base stage of first order amplifier transistor Q1 in the amplifying circuit, the collector electrode output of first order amplifier transistor Q1 connects the base stage of second level amplifier transistor Q2, the emitter of second level amplifier transistor Q2 connects adjuster power supply ground, and its collector output is by diode D
2Connect the adjuster positive source, sample resistance R
1, R
2Tie point and conditioner outlet end be second level amplifier transistor Q2 the emitter-base bandgap grading output between be connected with feedback resistance R
5, described generator runaway protection circuit is connected in the aforementioned adjuster circuit, and two fault-signal detection terminal b, F connect the control base stage of power switch pipe in the adjuster circuit and the F end of adjuster respectively, pass through resistance R
6, R
7The base stage of first order amplifier transistor Q3 in the runaway protection circuit is of coupled connections; the collector output of first order amplifier transistor Q3 connects the base stage of second level amplifier transistor Q4, and the emitter-base bandgap grading output of second level amplifier transistor Q4 connects the trigger control end that device Q5 is implemented in the power-type protection.The effect of resistance R 10 is to carry out the current potential coupling.
The operation principle and the course of work: in the main circuit of adjuster, the power tube Q2 of adjuster is used for controlling the break-make of generator exciting curent, to reach the purpose of control generator power output.In the normal regulating process, the b of power tube Q2, c electrode potential are opposite all the time.When electric system voltage was lower than the adjuster regulation voltage level, the b utmost point was in high potential, the Q2 conducting, and the c utmost point is in electronegative potential; Have electric current to pass through in the generator magnetizing coil this moment, and generator is in generating state.When electric system voltage reached and be higher than the regulation voltage level of adjuster, the b utmost point was in electronegative potential, and Q2 ends, and the c utmost point is in high potential, and do not have electric current to pass through in the generator magnetizing coil this moment, and generator is in not generating state.
Find out from top analysis: the normal regulating process, the b of power tube, c electrode potential are opposite all the time.And generator is when being in runaway condition, and the magnetizing coil of generator will not be subjected to the control of adjuster power tube and have exciting curent to pass through all the time, make generator be in generating state all the time.Cause the reason of this situation to have two: 1, the power tube punch through damage is lost on-off action and conducting all the time.2, between power tube e, the c utmost point by unexpected short circuit (being between F, the E of adjuster) by short circuit, thereby exciting curent is not subjected to power tube control to exist generator also to be in generating state all the time all the time.And when generating voltage is elevated to the regulation voltage level of adjuster, the power tube prime of adjuster will be controlled utmost point output electronegative potential to power tube ends it, at this moment the output current potential of power tube should uprise, though just still be in low-potential state owing to the existence power tube of above-mentioned two kinds of reasons is in its output of cut-off state.
After fault takes place, generator is in the straight hair electricity condition, in case when electric system voltage met and exceeded the regulated value of adjuster, control end of power tube (the input utmost point) and output all were in low-potential state, this is the feature current potential that is used for judging the generator hardover failure among the application.Two fault-signal test sides of the lost-control protection element circuit of this application just are connected to the input and output side of power tube respectively, detect the current potential situation at these two positions.
In Fig. 7, resistance R
6, R
7Being connected on the input b of power tube and its output c respectively is the excitatory control end F place of adjuster, when fault-free, no matter the power tube conducting with end have one to be in high potential state all the time because c and F hold, the choose reasonable resistance R
6, R
7The ratio of the two; make its node place also be in high potential state all the time; will make the base stage of Q3 be in high potential; Q3 is conducting all the time; its output c utmost point is in electronegative potential; so the base stage of Q4 is clamped on electronegative potential and ends, controllable silicon Q5 is in cut-off state, and the whole protecting circuit unit does not influence the operate as normal of adjuster.After hardover failure occurs; because b, the c utmost point of adjuster power tube all are in low-potential state; the node place of resistance R 6, R7 also is in low-potential state certainly, so Q3 ends the Q4 conducting; Q5 is conducting also; the exciting curent of providing for the generator magnetizing coil is shorted to ground by Q5, does not have electric current to pass through in the magnetizing coil, and generator loses exciting curent and generation outage; electric system voltage no longer raises, and car electrics and storage battery all are protected.This moment, automobile storage battery also arrived ground by Q5 by charging indicator light to the pre-exciting curent that generator provides, but charging indicator light is bright, and prompting driver electricity generation system produces the fault generation outage, need keep in repair.
Embodiment six: referring to Fig. 9.Present embodiment vehicle alternator voltage regulator contains sample circuit, sample resistance R
1, R
2Be connected between excitatory output D+ of adjuster power supply ground E and generator or the power take-off B+ sample resistance R
1, R
2Node and power supply ground between be connected voltage-stabiliser tube D1 and resistance R
3The voltage shift match circuit of forming, voltage-stabiliser tube and R
3Node connect the base stage of first order amplifier transistor Q1 in the amplifying circuit, the collector electrode output of first order amplifier transistor Q1 connects the base stage of second level amplifier transistor Q2, the emitter of second level amplifier transistor Q2 connects power supply ground, its collector output connects positive source, sample resistance R by diode D2
1, R
2Tie point and conditioner outlet end be second level amplifier transistor Q2 the emitter-base bandgap grading output between be connected with feedback resistance R
5, described generator runaway protection circuit is connected in the aforementioned adjuster circuit, and two fault-signal detection terminal b, F connect the control base stage of power switch pipe in the adjuster circuit and the F end of adjuster respectively, pass through resistance R
6, R
7The base stage of first order amplifier transistor Q3 in the runaway protection circuit is of coupled connections; the collector output of first order amplifier transistor Q3 connects the base stage of second level amplifier transistor Q4, and the emitter-base bandgap grading output of second level amplifier transistor Q4 connects the control utmost point that device Q5 is implemented in the power-type protection.Triode Q2, Q3 are replaced by metal-oxide-semiconductor respectively, to improve and to improve service behaviour.
Embodiment seven: referring to Figure 10.Present embodiment vehicle alternator voltage regulator is by resistance R
5, diode D
1Form voltage stabilizing circuit, sample resistance R
1, R
2Be connected between excitatory output D+ of power supply ground E and generator or the power take-off B+ sample resistance R
1, R
2Node link to each other with the inverting input of comparator IC, be connected in voltage-stabiliser tube D
1The R of voltage stabilizing end
3, R
4Between node link to each other with the in-phase input end of comparator IC, the output of comparator IC links to each other with the control end of power tube Q2, its collector output is by diode D
2Connect positive source, described adjuster runaway protection circuit is connected in the aforementioned adjuster circuit, and two fault-signal detection terminal b, F connect the control base stage of power switch pipe Q2 in the adjuster circuit and the F end of adjuster respectively, pass through resistance R
6, R
7The inverting input that connects the comparator AR in the protective circuit, the in-phase input end of comparator AR connects resistance R
11, R
12, R
11, R
12Be connected in series in diode D in ground E and the voltage stabilizing circuit
1, resistance R
5The node place, the output of comparator AR connects the base stage of transistor Q4, the emitter-base bandgap grading output of transistor Q4 connects the trigger control end that device Q5 is implemented in the power-type protection.
Present embodiment adopts dual comparator, and comparator AR plays inverting function in the circuit.
Embodiment eight: referring to Figure 11.The vehicle alternator voltage regulator of present embodiment contains sample circuit, sample resistance R
1, R
2Be connected between power supply ground and excitatory output D+ of generator or power take-off B+ R
1, R
2Node and power supply ground between be connected voltage-stabiliser tube D
1And resistance R
3The voltage shift match circuit of forming, voltage-stabiliser tube D
1With resistance R
3Node connect the base stage of first order amplifier transistor Q1 in the amplifying circuit, the collector electrode output of first order amplifier transistor Q1 connects the base stage of second level amplifier transistor Q2, the emitter of second level amplifier transistor Q2 connects power supply ground, its collector output connects positive source, sample resistance R by diode D2
1, R
2Tie point and conditioner outlet end be second level amplifier transistor Q2 the emitter-base bandgap grading output between be connected with feedback resistance R
5, described adjuster runaway protection circuit is connected in the aforementioned adjuster circuit, and two fault-signal detection terminal b, F connect the control base stage of power switch pipe in the adjuster circuit and the F end of adjuster respectively, pass through resistance R
6, R
7Be of coupled connections transistor Q3 in lost-control protection and the restore circuit, the load resistance R of transistor Q3
8By diode D
4Connect power supply, diode D
4Positive pole connects power supply, load R
8With diode D
4Be provided with a delay capacitor C between tie point and the power supply ground
3, the output of transistor Q3 links to each other with the input that power tube Q5 is implemented in protection, is connected to clamp voltage-stabiliser tube D over the ground at the input of power tube Q5
5Present embodiment has the protection restore funcitons.
Embodiment nine: referring to Figure 12.Present embodiment vehicle alternator voltage regulator uses the restore funcitons that has of comparator.By resistance R
5, diode D
1Form voltage stabilizing circuit, sample resistance R
1, R
2Be connected between excitatory output D+ of power supply ground and generator or the power take-off B+ sample resistance R
1, R
2Node link to each other with the inverting input of comparator IC, be connected in voltage-stabiliser tube D
1The resistance R of voltage stabilizing end
3, R
4Between node link to each other with the in-phase input end of comparator IC, the output of comparator IC links to each other with the control end of power tube Q2, its collector output is by diode D
2Connect positive source, described adjuster runaway protection circuit is connected in the aforementioned adjuster circuit, and two fault-signal detection terminal b, F connect the control base stage of power switch pipe Q2 in the adjuster circuit and the F end of adjuster respectively, pass through resistance R
6, R
7The inverting input that connects the comparator AR in the protective circuit, the in-phase input end of comparator AR connects resistance R
11, R
12, R
11, R
12Be connected in series in adjuster power supply ground and diode D
1, resistance R
5The node place, the output of comparator AR connects the input control end that device Q5 is implemented in the protection of fet power type, the output load resistance R of comparator AR
8By diode D
4Connect power supply, diode D
4Positive pole connects power supply, load resistance R
8With diode D
4Be provided with a delay capacitor C between tie point and the power supply ground
3, the input of implementing device Q5 in field effect power-type protection to the adjuster power supply be connected to clamp voltage-stabiliser tube D
5
Claims (9)
1. adjuster generator runaway protection circuit; contain the protection of input and mixed processing circuit and power-type and implement device; it is characterized in that: described input and mixed processing circuit are provided with two fault-signal detection terminal b; F; connect the base stage of power switch pipe in the adjuster circuit and the F end of adjuster respectively; detected signal is carried out mixed processing also detecting fault-signal and level output backward; input is connected the power-type protection and implements the device input with mixed processing circuit signal output, described power-type protection is implemented device and is connected between the positive source and power supply ground of adjuster.
2. adjuster generator runaway protection circuit according to claim 1 is characterized in that: two fault-signal detection terminal b, F pass through resistance R respectively
6, R
7The base stage of the first order that is of coupled connections amplifier transistor Q3; the collector output of first order amplifier transistor Q3 connects the base stage of second level amplifier transistor Q4, and the emitter-base bandgap grading output of second level amplifier transistor Q4 connects the trigger control end that device Q5 is implemented in the power-type protection.
3. adjuster generator runaway protection circuit according to claim 1 is characterized in that: contain the protection time-delay and recover control circuit automatically, two fault-signal detection terminal b, F pass through resistance R respectively
6, R
7The be of coupled connections base stage of amplifier transistor Q3, the load resistance R of amplifier transistor Q3
8By diode D
4The positive source that connects adjuster, diode D
4Positive pole connects the adjuster positive source, load resistance R
8With diode D
4Tie point and adjuster power supply ground between be provided with a delay capacitor C
3, the collector output of amplifier transistor Q3 links to each other with the control input end that device power tube Q5 is implemented in protection, in the control input end of power tube Q5 to the adjuster power supply be connected to clamp voltage-stabiliser tube D
5
4. adjuster generator runaway protection circuit according to claim 1 is characterized in that: two fault-signal detection terminal b, F pass through resistance R respectively
6, R
7The inverting input of a voltage comparator is of coupled connections; the input in the same way of described voltage comparator connects reference voltage source; the voltage comparator output connects the base stage of amplifier transistor Q4, and the emitter-base bandgap grading output of described amplifier transistor Q4 connects the trigger control end that device Q5 is implemented in the power-type protection.
5. a vehicle alternator voltage regulator that contains the described generator runaway protection circuit of claim 1 contains sample circuit, sample resistance R
1, R
2Be connected between excitatory output D+ of adjuster power supply ground E and generator or the power take-off B+ sample resistance R
1, R
2Node and adjuster power supply ground between be connected voltage-stabiliser tube D
1And resistance R
3The voltage shift match circuit of forming, voltage-stabiliser tube D
1With resistance R
3Node connect the base stage of first order amplifier transistor Q1 in the amplifying circuit, the collector electrode output of first order amplifier transistor Q1 connects the base stage of second level amplifier transistor Q2, the emitter of second level amplifier transistor Q2 connects adjuster power supply ground, and its collector output is by diode D
2Connect the adjuster positive source, sample resistance R
1, R
2Tie point and conditioner outlet end be second level amplifier transistor Q2 the emitter-base bandgap grading output between be connected with feedback resistance R
5, it is characterized in that: described generator runaway protection circuit is connected in the aforementioned adjuster circuit, and two fault-signal detection terminal b, F connect the control base stage of power switch pipe in the adjuster circuit and the F end of adjuster respectively, pass through resistance R
6, R
7The base stage of first order amplifier transistor Q3 in the runaway protection circuit is of coupled connections; the collector output of first order amplifier transistor Q3 connects the base stage of second level amplifier transistor Q4, and the emitter-base bandgap grading output of second level amplifier transistor Q4 connects the trigger control end that device Q5 is implemented in the power-type protection.
6. a vehicle alternator voltage regulator that contains the described generator runaway protection circuit of claim 1 contains sample circuit, sample resistance R
1, R
2Be connected between excitatory output D+ of adjuster power supply ground E and generator or the power take-off B+ sample resistance R
1, R
2Node and power supply ground between be connected voltage-stabiliser tube D
1And resistance R
3The voltage shift match circuit of forming, voltage-stabiliser tube D
1With resistance R
3Node connect the base stage of first order amplifier transistor Q1 in the amplifying circuit, the collector electrode output of first order amplifier transistor Q1 connects the base stage of second level amplifier transistor Q2, the emitter of second level amplifier transistor Q2 connects power supply ground, and its collector output is by diode D
2Connect positive source, sample resistance R
1, R
2Tie point and conditioner outlet end be second level amplifier transistor Q2 the emitter-base bandgap grading output between be connected with feedback resistance R
5, it is characterized in that: described generator runaway protection circuit is connected in the aforementioned adjuster circuit, and two fault-signal detection terminal b, F connect the control base stage of power switch pipe in the adjuster circuit and the F end of adjuster respectively, pass through resistance R
6, R
7The base stage of first order amplifier transistor Q3 in the runaway protection circuit is of coupled connections; the collector output of first order amplifier transistor Q3 connects the base stage of second level amplifier transistor Q4, and the emitter-base bandgap grading output of second level amplifier transistor Q4 connects the trigger control end that device Q5 is implemented in the power-type protection.
7. vehicle alternator voltage regulator that contains the described generator runaway protection circuit of claim 1 is by resistance R
5, diode D
1Form voltage stabilizing circuit, sample resistance R
1, R
2Be connected between excitatory output D+ of power supply ground and generator or the power take-off B+ sample resistance R
1, R
2Node link to each other with the inverting input of comparator IC, be connected in the reference signal sample resistance R of voltage stabilizing circuit output end of pressure-stabilizing
3, R
4Between node link to each other with the in-phase input end of comparator IC, the output of comparator IC links to each other with the control end of power tube Q2, its collector output is by diode D
2Connect positive source, it is characterized in that: described adjuster runaway protection circuit is connected in the aforementioned adjuster circuit, and two fault-signal detection terminal b, F connect the control base stage of power switch pipe Q2 in the adjuster circuit and the F end of adjuster respectively, pass through resistance R
6, R
7The inverting input that connects the comparator AR in the protective circuit, the in-phase input end of comparator AR connects resistance R
11, R
12, R
11, R
12Be connected in series in diode D in power supply ground and the voltage stabilizing circuit
1, resistance R
5The node place, the output of comparator AR connects the base stage of transistor Q4, the emitter-base bandgap grading output of transistor Q4 connects the trigger control end that device Q5 is implemented in the power-type protection.
8. a vehicle alternator voltage regulator that contains the described adjuster runaway protection circuit of claim 1 contains sample circuit, sample resistance R
1, R
2Be connected between power supply ground E and excitatory output D+ of generator or power take-off B+ R
1, R
2Node and power supply ground between be connected voltage-stabiliser tube D
1And resistance R
3The voltage shift match circuit of forming, voltage-stabiliser tube D
1With resistance R
3Node connect the base stage of first order amplifier transistor Q1 in the amplifying circuit, the collector electrode output of first order amplifier transistor Q1 connects the base stage of second level amplifier transistor Q2, the emitter of second level amplifier transistor Q2 connects power supply ground, its collector output connects positive source, sample resistance R by diode D2
1, R
2Tie point and conditioner outlet end be second level amplifier transistor Q2 the emitter-base bandgap grading output between be connected with feedback resistance R
5, it is characterized in that: described adjuster runaway protection circuit is connected in the aforementioned adjuster circuit, and two fault-signal detection terminal b, F connect the control base stage of power switch pipe in the adjuster circuit and the F end of adjuster respectively, pass through resistance R
6, R
7Be of coupled connections transistor Q3 in lost-control protection and the restore circuit, the load resistance R of transistor Q3
8By diode D
4Connect power supply, diode D
4Positive pole connects power supply, load R
8With diode D
4Be provided with a delay capacitor C between tie point and the power supply ground
3, the output of transistor Q3 links to each other with the input that power tube Q5 is implemented in protection, is connected to clamp voltage-stabiliser tube D over the ground at the input of power tube Q5
5
9. vehicle alternator voltage regulator that contains the described generator runaway protection circuit of claim 1 is by resistance R
5, diode D
1Form voltage stabilizing circuit, sample resistance R
1, R
2Be connected between excitatory output D+ of power supply ground E and generator or the power take-off B+ sample resistance R
1, R
2Node link to each other with the inverting input of comparator IC, be connected in the reference signal sample resistance R of voltage stabilizing circuit output end of pressure-stabilizing
3, R
4Between node link to each other with the in-phase input end of comparator IC, the output of comparator IC links to each other with the control end of power tube Q2, its collector output is by diode D
2Connect positive source, it is characterized in that: described adjuster runaway protection circuit is connected in the aforementioned adjuster circuit, and two fault-signal detection terminal b, F connect the control base stage of power switch pipe Q2 in the adjuster circuit and the F end of adjuster respectively, pass through resistance R
6, R
7The inverting input that connects the comparator AR in the protective circuit, the in-phase input end of comparator AR connects resistance R
11, R
12, R
11, R
12Be connected in series in adjuster ground E and diode D
1, resistance R
5The node place, the output of comparator AR connects the input control end that device Q5 is implemented in the protection of fet power type, the output load resistance R of comparator AR
8By diode D
4Connect power supply, diode D
4Positive pole connects power supply, load resistance R
8With diode D
4Be provided with a delay capacitor C between tie point and the power supply ground
3, the input of implementing device Q5 in field effect power-type protection to the adjuster power supply be connected to clamp voltage-stabiliser tube D
5
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201500933U CN201656439U (en) | 2010-04-06 | 2010-04-06 | Generator failure protection circuit of regulator and voltage regulator thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201500933U CN201656439U (en) | 2010-04-06 | 2010-04-06 | Generator failure protection circuit of regulator and voltage regulator thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201656439U true CN201656439U (en) | 2010-11-24 |
Family
ID=43121677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201500933U Expired - Fee Related CN201656439U (en) | 2010-04-06 | 2010-04-06 | Generator failure protection circuit of regulator and voltage regulator thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201656439U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103253150A (en) * | 2012-12-25 | 2013-08-21 | 联合汽车电子有限公司 | Failure response control method for vehicular permanent-magnetic synchronous motor control system |
| US9190945B2 (en) | 2013-07-03 | 2015-11-17 | Universal Scientific Industrial (Shanghai) Co., Ltd. | Voltage regulator, under-voltage protection circuit thereof and voltage regulation system |
| CN107294063A (en) * | 2017-05-24 | 2017-10-24 | 中国人民解放军海军工程大学 | Asynchronous rectified generator excitation protection controls judgement system and implementation |
-
2010
- 2010-04-06 CN CN2010201500933U patent/CN201656439U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103253150A (en) * | 2012-12-25 | 2013-08-21 | 联合汽车电子有限公司 | Failure response control method for vehicular permanent-magnetic synchronous motor control system |
| CN103253150B (en) * | 2012-12-25 | 2015-11-18 | 联合汽车电子有限公司 | Car permanent magnet synchronous motor control system inefficacy response control mehtod |
| US9190945B2 (en) | 2013-07-03 | 2015-11-17 | Universal Scientific Industrial (Shanghai) Co., Ltd. | Voltage regulator, under-voltage protection circuit thereof and voltage regulation system |
| TWI513131B (en) * | 2013-07-03 | 2015-12-11 | Universal Scient Ind Shanghai | Voltage regulator and undervoltage protection circuit thereof |
| CN107294063A (en) * | 2017-05-24 | 2017-10-24 | 中国人民解放军海军工程大学 | Asynchronous rectified generator excitation protection controls judgement system and implementation |
| CN107294063B (en) * | 2017-05-24 | 2019-01-25 | 中国人民解放军海军工程大学 | Asynchronous rectified generator excitation protection controls judgement system and implementation method |
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Granted publication date: 20101124 Termination date: 20120406 |