CN104571247B - The Voltage Regulator Module of automobile current generator and voltage regulator circuit - Google Patents
The Voltage Regulator Module of automobile current generator and voltage regulator circuit Download PDFInfo
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- CN104571247B CN104571247B CN201510012088.3A CN201510012088A CN104571247B CN 104571247 B CN104571247 B CN 104571247B CN 201510012088 A CN201510012088 A CN 201510012088A CN 104571247 B CN104571247 B CN 104571247B
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Abstract
The invention discloses a kind of Voltage Regulator Module and voltage regulator circuit of automobile current generator, the former comprises driver element, selection unit and first, second control module, and driver element, when its input end has electric current to input, makes lead-out terminal and ground terminal disconnect; The output voltage of generator is limited in higher the first setting numerical value and lower second and sets numerically by first, second control module respectively, selection unit environment temperature higher than or equal setting threshold value time, select the state being controlled driver element by the second control module, and when environment temperature is lower than described setting threshold value, select the state being controlled driver element by the first control module.The output voltage of the present invention by making generator provide different when environment temperature is higher and lower, accumulator can be avoided when environment temperature is higher to occur overcharge situation and occur the situation of undercharge when environment temperature is lower, therefore, the serviceable life of accumulator can effectively be extended.
Description
Technical field
The present invention relates to automobile current generator technical field, the voltage regulator circuit of the Voltage Regulator Module particularly relating to a kind of automobile current generator and the output voltage utilizing this Voltage Regulator Module regulator generator.
Background technology
Automobile power source is made up of accumulator and generator, is powered by accumulator when engine off-duty to car load electrical load, after engine runs drive electrical power generators, is then powered to car load electrical load by generator, simultaneously to charge in batteries.In order to can by generator to charge in batteries, to ensure that accumulator electric-quantity is sufficient, the output voltage of generator should higher than battery tension.Because the characteristic of accumulator can change with the change of environment temperature, during summer, accumulator activity is better, can discharge more electricity during starting, and required charging voltage is just relatively low; During winter, accumulator activity is poor, and the electricity discharged during starting reduces, and required charging voltage is just relatively high.Therefore, in order to take into account winter and summer, be set as the output voltage of generator substantially to equal the charging voltage in corresponding summer and the intermediate value of the charging voltage in corresponding winter at present, be specially: if the rated voltage of accumulator is 12 volts, then the output voltage of generator is set as 14.5 volts, if the rated voltage of accumulator is 24 volts, then the output voltage of generator is set as 28.5 volts.
Fig. 1 shows the Voltage Regulator Module of the existing output voltage for setting automobile current generator, this Voltage Regulator Module comprises driver element and control module, and the power supply terminal JL for being connected with peripheral circuit, ground terminal JGND and lead-out terminal JOUT, wherein, this power supply terminal JL is connected with the hot end of the field coil 5 of automobile current generator, the negative pole of ground terminal JGND and accumulator 1, and then be connected with bonding, lead-out terminal JOUT is connected with the cold end of field coil 5, the hot end of this field coil 5 is the one end be connected with the charging indicator light end of engine 4 by diode D2.Above-mentioned driver element comprises the first resistance R1, the first triode Q1 and the second triode Q2, one end of first resistance R1 is connected with power supply terminal JL, the other end of the first resistance R1 is connected with the base stage of the first triode Q1 and the collector of the second triode, the collector and emitter of the first triode Q1 is connected with lead-out terminal JOUT and ground terminal JGND respectively, and the emitter of the second triode Q2 is connected with ground terminal; Above-mentioned control module comprises bleeder circuit and the 3rd stabilivolt D3, bleeder circuit comprises and is connected in series in the second resistance R2 between power supply terminal JL and ground terminal JGND and the 3rd resistance R3, and the positive pole of the 3rd stabilivolt D3 and negative pole are connected with the base stage of the second triode Q2 and the dividing point (potential point between the second resistance R2 and the 3rd resistance R3) of bleeder circuit respectively.
The voltage-regulation principle of this Voltage Regulator Module is as follows: after ignition switch 2 is connected, electric current is through generator charging pilot lamp 3, second resistance R2 and the 3rd resistance R3 forms closed-loop path, now the terminal voltage of the 3rd resistance R3 is lower than the voltage breakdown of the 3rd stabilivolt D3, 3rd stabilivolt D3 ends, the second triode Q2 is caused to end, and then make the first triode Q1 conducting, field coil 5 will form closed-loop path by the first triode Q1, electric current flows through field coil 5 and produces magnetic field, therefore, if now pilot engine, engine is by the drive electrical generators 4 circumgyration incision magnetic line of force, generator 4 starts generating, after generator 4 generates electricity, power to Voltage Regulator Module through diode D2, the voltage at generator charging pilot lamp 3 two ends is equal, generator charging pilot lamp 3 extinguishes, and along with the rising gradually of generator 4 output voltage, the terminal voltage of the 3rd resistance R3 also rises thereupon, when the terminal voltage of the 3rd resistance R3 is greater than the voltage breakdown of the 3rd stabilivolt D3, 3rd stabilivolt D3 conducting, second triode Q2 conducting, drag down the base voltage of the first triode Q1, first triode Q1 is ended, the closed circuit of field coil 5 disconnects, field coil 5 no longer produces magnetic field, generator 4 is because of cannot cutting magnetic line and cause output voltage to reduce, now, the terminal voltage of the 3rd resistance R3 can decrease, when the terminal voltage of the 3rd resistance R3 is reduced to the voltage breakdown lower than the 3rd stabilivolt D3,3rd stabilivolt D3 ends again, first triode Q1 conducting again, field coil 5 forms closed-loop path by the first triode Q1 again, and then make electric current flow through field coil 5 to produce magnetic field, generator 4 makes output voltage rise because of cutting magnetic line, and so forth, just can by constant for the output voltage of generator 4 in above-mentioned setting numerically.
This kind adopts compromise mode to make, and the output voltage of generator is constant there is following defect in setting structure numerically: cause overcharge of a battery during summer, and then accelerate the consumption of internal storage battery electrolytic solution, shorten service lifetime of accumulator; Cause charge in batteries not enough during winter, and then aggravation internal storage battery plate vulcanizing, can service lifetime of accumulator be shortened equally.
Summary of the invention
Embodiments of the invention provide a kind of and can change the Voltage Regulator Module of the output voltage of engine according to temperature variation and utilize the voltage regulator circuit of output voltage of this Voltage Regulator Module regulator generator.
For achieving the above object, the technical solution used in the present invention is: a kind of Voltage Regulator Module of automobile current generator, comprise driver element and the first control module, and power supply terminal, ground terminal and lead-out terminal, described driver element is connected between described power supply terminal and described ground terminal, described driver element, when the input end of driver element has electric current to input, makes described lead-out terminal and described ground terminal disconnect; Described first control module comprises the first bleeder circuit and the 3rd stabilivolt, described first bleeder circuit is connected between described power supply terminal and ground terminal, and the positive pole of described 3rd stabilivolt is connected with the input end of described driver element and the first dividing point of described first bleeder circuit respectively with negative pole;
Described Voltage Regulator Module also comprises the second control module and selection unit, described second control module comprises the second bleeder circuit and the 4th stabilivolt, described second bleeder circuit is connected between described power supply terminal and ground terminal, the positive pole of described 4th stabilivolt is connected with the input end of described driver element and the second dividing point of described second bleeder circuit respectively with negative pole, and the intrinsic standoff ratio of described second dividing point is greater than the intrinsic standoff ratio of described first dividing point; Described selection unit environment temperature higher than or equal setting threshold value time, select the state being controlled described driver element by described second control module, and when environment temperature is lower than described setting threshold value, select the state being controlled described driver element by described first control module.
Preferably, described selection unit comprises voltage comparator, homophase bleeder circuit, anti-phase bleeder circuit, the first clamping circuit and the second clamping circuit, described homophase bleeder circuit and anti-phase bleeder circuit are connected in parallel between described power supply terminal and ground terminal, the dividing point of described homophase bleeder circuit is connected with the in-phase input end of described voltage comparator, the dividing point of described anti-phase bleeder circuit is connected with the inverting input of described voltage comparator, described anti-phase bleeder circuit or described homophase bleeder circuit have temperature switch, the operating temperature value of described temperature switch equals described setting threshold value, make described voltage comparator environment temperature higher than or equal described setting threshold value time through selecting signal output part to export high level, and environment temperature lower than during described setting threshold value through described selection signal output part output low level,
The current potential of described first dividing point, when described selection signal output part exports high level, is pulled low to the state making described 3rd stabilivolt cut-off by described first clamping circuit; The current potential of described second dividing point, when described selection signal output part output low level, is pulled low to the state making described 4th stabilivolt cut-off by described second clamping circuit.
Preferably, described temperature switch is closed type temperature switch.
Preferably, described anti-phase bleeder circuit comprises the tenth resistance, the 11 resistance, the 12 resistance and described temperature switch, described 11 resistance is connected between the inverting input of described voltage comparator and described ground terminal, after described 12 resistance and the series connection of described temperature switch again and the circuit that formed of described tenth resistor coupled in parallel be connected between the inverting input of described power supply terminal and described voltage comparator.
Preferably, described selection unit comprises controller, temperature sensor, the first clamping circuit and the second clamping circuit, described controller receives the temperature signal that described temperature sensor exports, described controller described temperature signal represent environment temperature higher than or equal described setting threshold value time through selecting signal output part to export high level, and described temperature signal represent environment temperature lower than during described setting threshold value through described selection signal output part output low level;
The current potential of described first dividing point, when described selection signal output part exports high level, is pulled low to the state making described 3rd stabilivolt cut-off by described first clamping circuit; The current potential of described second dividing point, when described selection signal output part output low level, is pulled low to the state making described 4th stabilivolt cut-off by described second clamping circuit.
Preferably, described first clamping circuit comprises the 3rd triode, the collector of described 3rd triode is connected with described first dividing point, and the emitter of described 3rd triode is connected with described ground terminal, and the base stage of described 3rd triode is connected with described selection signal output part; Described second clamping circuit comprises the 5th diode, and the positive pole of described 5th diode is connected with described second dividing point and described selection signal output part respectively with negative pole.
Preferably, described first clamping circuit comprises the normally opened contact of relay, described normally opened contact is connected between described first dividing point and described ground terminal, described second clamping circuit comprises the normally closed contact of described relay, described normally closed contact is connected between described second dividing point and described ground terminal, and the coil of described relay is connected between described selection signal output part and described ground terminal.
Preferably, described driver element comprises the first resistance, the first triode and the second triode, one end of described first resistance is connected with described power supply terminal, the other end of described first resistance is connected with the collector of the base stage of described first triode and described second triode, the collector of described first triode is connected with described lead-out terminal, the base stage of described second triode is as the input end of described driver element, and the emitter of described first triode is connected with described ground terminal with the emitter of described second triode.
To achieve these goals, the technical solution used in the present invention is: a kind of voltage regulator circuit of automobile current generator, comprise the first diode, the second diode, generator charging pilot lamp, accumulator, ignition switch and Voltage Regulator Module, the positive pole of described accumulator is connected with the power supply terminal of described Voltage Regulator Module with described generator charging pilot lamp through described ignition switch, and the ground terminal of described Voltage Regulator Module is connected with the negative pole of described accumulator; The charging indicator light end of automobile current generator is connected with the positive pole of described second diode, and the negative pole of described second diode is connected with the power supply terminal of described Voltage Regulator Module; The accumulator positive of automobile current generator is extremely connected with the positive pole of described first diode, the negative pole of described first diode is connected with the positive pole of described accumulator, the earth terminal of automobile current generator is connected with the negative pole of described accumulator, and the field coil of automobile current generator is connected between the power supply terminal of described Voltage Regulator Module and the lead-out terminal of described Voltage Regulator Module; Described Voltage Regulator Module is above-mentioned Voltage Regulator Module described in any one.
Beneficial effect of the present invention is, the Voltage Regulator Module of automobile current generator of the present invention is provided with the first control module for controlling driver element and the second control module, and the second control module can set numerical value by constant for the output voltage of automobile current generator lower second because having higher intrinsic standoff ratio, and the first control module can set constant for the output voltage of automobile current generator numerically higher first because having lower intrinsic standoff ratio, on this basis, Voltage Regulator Module of the present invention by make selection unit environment temperature higher than or equal setting threshold value time, select the state being controlled driver element by the second control module, the charging voltage of accumulator can be reduced, and then accumulator can be prevented because there is the situation of overcharge when temperature is higher and reduction of service life, again by making selection unit when environment temperature is lower than this setting threshold value, select the state being controlled driver element by the first control module, the charging voltage of accumulator can be improved, and then prevent accumulator because there is the situation of undercharge when temperature is lower and reduction of service life.As can be seen here, Voltage Regulator Module of the present invention and the output voltage of voltage regulator circuit by making generator provide different when environment temperature is higher and lower, accumulator can be avoided when environment temperature is higher to occur overcharge situation and occur the situation of undercharge when environment temperature is lower, therefore, the serviceable life of accumulator can effectively be extended.
Accompanying drawing explanation
Fig. 1 shows and existingly makes the constant circuit structure in setting Voltage Regulator Module numerically of the output voltage of generator;
Fig. 2 shows the frame principle figure of a kind of embodiment according to Voltage Regulator Module of the present invention;
The one that Fig. 3 shows selection unit shown in Fig. 2 implements structure;
The another kind that Fig. 4 shows selection unit shown in Fig. 2 implements structure;
Fig. 5 shows a kind of embodiment of driver element shown in a kind of embodiment of selection unit shown in Fig. 3 and Fig. 2;
Fig. 6 shows the another kind of embodiment of driver element shown in Fig. 2.
Description of reference numerals:
1-accumulator; 2-ignition switch;
3-generator charging pilot lamp; 4-automobile current generator;
The field coil of 5-generator; 6-voltage comparator;
7-temperature switch; U1-driver element;
U2a-first control module; U2b-second control module;
U3-selection unit; U31-controller;
A1-homophase bleeder circuit; The anti-phase bleeder circuit of A2-;
C1-first clamping circuit; C2-second clamping circuit;
S3-temperature sensor; D1-first diode;
D2-second diode; D3-the 3rd stabilivolt;
D4-the 4th stabilivolt; D5-the 5th diode;
Q1-first triode; Q2-second triode;
Q3-the 3rd triode; Ri-i-th resistance, wherein i value is 1 to 12;
KA-relay.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
The present invention makes the output voltage of generator constant in setting numerical value in order to solve existing Voltage Regulator Module because adopting compromise mode, and then cause accumulator to overcharge when temperature is higher, and when temperature is lower the problem of undercharge, a kind of Voltage Regulator Module that can change the output voltage of engine according to temperature variation is provided.As shown in Figures 2 to 6, this Voltage Regulator Module comprises driver element U1, first control module U2a, second control module U2b and selection unit U3, and for Voltage Regulator Module being accessed the power supply terminal JL in the voltage regulator circuit of automobile current generator, ground terminal JGND and lead-out terminal JOUT, this driver element U1 is connected between power supply terminal JL and ground terminal JGND, it is when the input end of driver element has electric current to input, lead-out terminal JOUT and ground terminal JGND is disconnected, accordingly, it is by when the input end no current of driver element inputs, lead-out terminal JOUT and ground terminal JGND is linked together, the output voltage of generator can be limited in the charge threshold level changing driver element state by this structure.This first control module U2a comprises the first bleeder circuit and the 3rd stabilivolt D3, first bleeder circuit is connected between power supply terminal JL and ground terminal JGND, the positive pole of the 3rd stabilivolt D3 is connected with the input end of driver element U1 and the first dividing point of the first bleeder circuit respectively with negative pole, with by the 3rd stabilivolt D3 whether conducting control the state of driver element U1.This second control module U2b comprises the second bleeder circuit and the 4th stabilivolt D4, second bleeder circuit is connected between power supply terminal JL and ground terminal JGND equally, the positive pole of the 4th stabilivolt D4 is connected with the input end of driver element U1 and the second dividing point of the second bleeder circuit respectively with negative pole, with by the 4th stabilivolt D4 whether conducting control the state of driver element U1, here, the intrinsic standoff ratio (i.e. ratio between the current potential of the second dividing point relative to ground current potential of terminal GND and power supply terminal JL relative to ground terminal GND) arranging the second dividing point is greater than the intrinsic standoff ratio of the first dividing point (i.e. ratio between the current potential of the first dividing point relative to ground current potential of terminal GND and power supply terminal JL relative to ground terminal GND).This selection unit U3 environment temperature higher than or equal setting threshold value time, select the state being controlled driver element by the second control module U2b, should forbid that the first control module U2a works accordingly, and when environment temperature is lower than setting threshold value, select the state being controlled driver element by the first control module U2a, should forbid that the second control module U2b works accordingly.
As shown in Figure 5, above-mentioned driver element U1 can adopt existing structure as shown in Figure 1, namely the first resistance R1 is comprised, first triode Q1 and the second triode Q2, one end of first resistance R1 is connected with power supply terminal JL, the other end of the first resistance R1 is connected with the collector of the base stage of the first triode Q1 and the second triode Q2, the collector and emitter of the first triode Q1 is connected with lead-out terminal JOUT and ground terminal JGND respectively, the emitter of the second triode Q2 is connected with ground terminal, the base stage of the second triode Q2 is then as the input end of driver element U1, second triode Q2 is by the conducting when its base stage has electric current to flow into (the voltage unlocking condition of the second triode Q2 can meet in real time under the effect of the stabilivolt of above-mentioned control module), and then the base potential of the first triode Q1 is dragged down, lead-out terminal JOUT and ground terminal JGND will disconnect because the first triode Q1 ends at this moment, accordingly, the second triode Q2 will end when its base stage no current flows into, and then the base potential of the first triode Q1 be drawn high, and lead-out terminal JOUT and ground terminal JGND will link together because of the first triode Q1 conducting at this moment.
Above-mentioned driver element U1 also can adopt structure as shown in Figure 6, namely the first resistance R1, the second triode Q2 and relay K A is comprised, the coils connected in series of this first resistance R1, the second triode Q2 and relay K A is connected between power supply terminal JL and ground terminal JGND, the base stage of this second triode Q2 is as the input end of driver element U1, and the normally closed contact of this relay K A is connected between lead-out terminal JOUT and ground terminal JGND.Second triode Q2 is by the conducting when its base stage has electric current to flow into (the voltage unlocking condition of the second triode Q2 can meet in real time under the effect of the stabilivolt of above-mentioned control module), and then it is electric to make the coil of relay K A obtain, the normally closed contact because of relay K A disconnects and disconnects by lead-out terminal JOUT and ground terminal JGND at this moment; Accordingly, the second triode Q2 will end when its base stage no current flows into, and then make the coil losing electricity of relay K A, and the normally closed contact because of relay K A closes and links together by lead-out terminal JOUT and ground terminal JGND at this moment.
The principle of work of the Voltage Regulator Module of automobile current generator of the present invention is: when environment temperature higher than or equal setting threshold value time, selection unit U3 will select the state being controlled driver element U1 by the second control module U2b, now, selection unit U3 forbids that the first control module U2a works, therefore, the 4th stabilivolt D4 by the second control module U2b is detected the voltage of power supply terminal JL by the second bleeder circuit, namely the output voltage (being specially the voltage of charging indicator light end) of automobile current generator is detected, when voltage breakdown lower than the 4th stabilivolt D4 of the voltage of the second dividing point, 4th stabilivolt D4 ends, electric current cannot be provided to the input end of driver element U1, therefore driver element U1 will make lead-out terminal JOUT and ground terminal JGND link together, now, as shown in Figure 5 and Figure 6, the field coil 5 of generator 4 is energized, the output voltage of generator 4 will rise, when the output voltage of generator 4 rise to make the voltage of the second dividing point higher than or equal the voltage breakdown of the 4th stabilivolt D4 time, 4th stabilivolt D4 conducting, and then provide electric current to the input end of driver element U1, therefore driver element U1 will make lead-out terminal JOUT and ground terminal JGND disconnect, now, as shown in Figure 5 and Figure 6, field coil 5 power-off of generator 4, the output voltage of generator 4 will decline, when the output voltage of generator 4 drops to the voltage breakdown again lower than the 4th stabilivolt D4, the output voltage of generator 4 will rise again, and so forth, just the output voltage of generator 4 can be limited to by the second setting of the second control module U2b decision numerically, namely the second setting numerical value realizes by designing the second bleeder circuit.When environment temperature is lower than this setting threshold value, selection unit U3 will select the state being controlled driver element U1 by the first control module U2a, now, selection unit U3 forbids that the second control module U2b works, therefore, the 3rd stabilivolt D3 by the first control module U2a is detected the output voltage of automobile current generator by the first bleeder circuit, when voltage breakdown lower than the 3rd stabilivolt D3 of the voltage of the first dividing point, 3rd stabilivolt D3 ends, electric current cannot be provided to the input end of driver element U1, therefore driver element U1 will make lead-out terminal JOUT and ground terminal JGND link together, now, as shown in Figure 5 and Figure 6, the field coil 5 of generator 4 is energized, the output voltage of generator 4 will rise, when the output voltage of generator 4 rise to make the voltage of the first dividing point higher than or equal the voltage breakdown of the 3rd stabilivolt D3 time, 3rd stabilivolt D3 conducting, and then provide electric current to the input end of driver element U1, therefore driver element U1 will make lead-out terminal JOUT and ground terminal JGND disconnect, now, as shown in Figure 5 and Figure 6, field coil 5 power-off of generator 4, the output voltage of generator 4 will decline, when the output voltage of generator 4 drops to the voltage breakdown again lower than the 3rd stabilivolt D3, the output voltage of generator 4 will rise again, and so forth, just the output voltage of generator 4 can be limited to by the first setting of the first control module U2a decision numerically, namely the first setting numerical value realizes by designing the first bleeder circuit.Intrinsic standoff ratio due to the second dividing point is greater than the intrinsic standoff ratio of the first dividing point, therefore, the relative first control module U2a of second control module U2b can at the voltage of power supply terminal JL, the i.e. output voltage of generator 4, the voltage breakdown of corresponding stabilivolt is reached time lower, and provide electric current to the input end of driver element U1, and then the second setting numerical value can be made lower than the first setting numerical value, so just, achieve the object of the output voltage of environmentally temperature regulator generator, therefore, can effectively prevent accumulator 1 from occurring overcharging situation when environment temperature is higher by Voltage Regulator Module of the present invention, and the situation of undercharge is there is when environment temperature is lower, this can protect accumulator 1 not to be damaged, and then extend the serviceable life of accumulator 1.
As shown in Figure 5 and Figure 6, above-mentioned first bleeder circuit can comprise the second resistance R2 and the 3rd resistance R3 that are connected in series, and the potential point between this second resistance R2 and the 3rd resistance R3 is above-mentioned first dividing point.Above-mentioned second bleeder circuit can comprise the 4th resistance R4 and the 5th resistance R5 that are connected in series, and the potential point between the 4th resistance R4 and the 5th resistance R5 is above-mentioned second dividing point.
As shown in Figure 3, above-mentioned selection unit U3 can comprise voltage comparator 6, homophase bleeder circuit A1, anti-phase bleeder circuit A2, the first clamping circuit C1 and the second clamping circuit C2, this homophase bleeder circuit A1 and anti-phase bleeder circuit A2 is connected in parallel between power supply terminal JL and ground terminal JGND, the dividing point of homophase bleeder circuit A1 is connected with the in-phase input end of voltage comparator 6, the dividing point of anti-phase bleeder circuit A2 is connected with the inverting input of voltage comparator 6, anti-phase bleeder circuit A2 or homophase bleeder circuit A1 has temperature switch, the operating temperature value of temperature switch equals above-mentioned setting threshold value, make voltage comparator 6 environment temperature higher than or equal setting threshold value time through select signal output part export high level, and environment temperature lower than during this setting threshold value through selecting signal output part output low level, this temperature switch can select closed type temperature switch, namely the switch disconnected when reaching operating temperature value, also open type temperature switch can be selected, namely closed when reaching operating temperature value switch, this first clamping circuit C1 is when selecting signal output part to export high level, the current potential of above-mentioned first dividing point is pulled low to the state that the 3rd stabilivolt D3 is ended, and then environment temperature higher than or forbid that first control circuit U2a works when equaling setting threshold value, so just realize selecting second control circuit U2b to control the object of driver element U1 state, and the second clamping circuit C2 is when selecting signal output part output low level, the current potential of above-mentioned second dividing point is pulled low to the state that the 4th stabilivolt D4 is ended, and then forbid that second control circuit U2b works in environment temperature lower than during setting threshold value, so just realize selecting first control circuit U2a to control the object of driver element U1 state.
When selecting closed type temperature switch, as shown in Figure 5 and Figure 6, can be arranged in above-mentioned anti-phase bleeder circuit A2, this anti-phase bleeder circuit A2 specifically can comprise the tenth resistance R10, the 11 resistance R11, the 12 resistance R12 and this temperature switch 7,11 resistance R11 is connected between the inverting input of voltage comparator 6 and ground terminal JGND, and the 12 resistance R12 and temperature switch 7 are connected between the inverting input of power supply terminal JL and voltage comparator 6 with the tenth resistance R10 circuit formed in parallel after connecting again.The principle of work of this selection unit U3 is: environment temperature higher than or equal setting threshold value time, temperature switch 7 will disconnect, and then the voltage of the inverting input of voltage comparator 6 is reduced and the voltage of in-phase input end lower than voltage comparator 6, therefore, voltage comparator 6 will export high level through its output terminal to selection signal output part at this moment; And when environment temperature is lower than setting threshold value, temperature switch 7 will close, and then the voltage of the inverting input of voltage comparator 6 is raised and the voltage of in-phase input end higher than voltage comparator 6, therefore, voltage comparator at this moment will through its output terminal to selection signal output part output low level.This homophase bleeder circuit A1 then can select the circuit structure simply comprising the 8th resistance R8 and the 9th resistance R9 be connected in series, and wherein, the potential point between the 8th resistance R8 and the 9th resistance R9 is connected with the in-phase input end of voltage comparator 6.
When selecting closed type temperature switch, also can refer to Fig. 5 and Fig. 6, adopting the structure in the circuit between the in-phase input end being connected to voltage comparator 6 and ground terminal JGND temperature switch 7 being arranged on homophase bleeder circuit A1.In addition, when selecting open type temperature switch, can refer to Fig. 5 and Fig. 6, adopt the structure in the circuit between the in-phase input end being connected to power supply terminal JL and voltage comparator 6 temperature switch 7 being arranged on homophase bleeder circuit A1, or adopt the structure in the circuit that to be arranged on by temperature switch 7 between the inverting input being connected to voltage comparator 6 of anti-phase bleeder circuit A2 and ground terminal JGND.
As shown in Figure 4, this selection unit U3 also can comprise controller U31, temperature sensor S3, the first clamping circuit C1 and the second clamping circuit C2, controller U31 receives the temperature signal that temperature sensor S3 exports, controller U31 temperature signal represent environment temperature higher than or equal setting threshold value time through selecting signal output part to export high level, and temperature signal represent environment temperature lower than during setting threshold value through selecting signal output part output low level; First clamping circuit C1 is when selecting signal output part to export high level, the current potential of the first dividing point is pulled low to the state that the 3rd stabilivolt D3 is ended, and then environment temperature higher than or forbid that first control circuit U2a works when equaling setting threshold value, so just realize selecting second control circuit U2b to control the object of driver element U1 state; Second clamping circuit C2 is when selecting signal output part output low level, the current potential of the second dividing point is pulled low to the state that the 4th stabilivolt D4 is ended, and then forbid that second control circuit U2b works in environment temperature lower than during setting threshold value, so just realize selecting first control circuit U2a to control the object of driver element U1 state.
Above-mentioned first clamping circuit C1 and the second clamping circuit C2 can adopt structure as shown in Figure 5 and Figure 6, namely the first clamping circuit C1 comprises the 3rd triode Q3, the collector of the 3rd triode Q3 is connected with the first dividing point, the emitter of the 3rd triode Q3 is connected with ground terminal JGND, and the base stage of the 3rd triode JGND is connected with selection signal output part; And the second clamping circuit C2 comprises the 5th diode D5, the positive pole of the 5th diode D5 and negative pole are respectively with the second dividing point with select signal output part to be connected.Like this, when selecting signal output part to export high level, the current potential of the first dividing point will be consistent with ground terminal JGND because of the 3rd triode Q3 conducting, and the 3rd stabilivolt therefore can be kept to be in cut-off state at this moment all the time; And when selecting signal output part output low level, the clamping action because of the 5th diode D5 lower than the voltage breakdown of the 4th stabilivolt D4, therefore can keep the 4th stabilivolt to be in cut-off state all the time at this moment by the current potential of the second dividing point.
For the structure of said clamping circuit, as shown in Figure 5 and Figure 6, this selection unit U3 can comprise the 6th resistance R6 for mating the 3rd triode Q3 and the 7th resistance R7,6th resistance R6 is connected between the base stage of power supply terminal JL and the 3rd triode, between the base stage that the 7th resistance R7 is connected to the 3rd triode Q3 and emitter.
Above-mentioned first clamping circuit also can comprise the normally opened contact (not shown) of relay, this normally opened contact is connected between the first dividing point and ground terminal JGND, second clamping circuit then comprises the normally closed contact (not shown) of this relay, this normally closed contact is connected between the second dividing point and ground terminal JGND, and the coil of this relay is then connected to be selected between signal output part and ground terminal JGND.Like this, when selecting signal output part to export high level, the coil of relay obtains electric, the current potential of the first dividing point will be consistent with ground terminal JGND because its normally opened contact is closed, therefore the 3rd stabilivolt D3 can be kept to be in cut-off state all the time at this moment, and the current potential of the second dividing point can will change with the change of power supply terminal JL voltage because its normally closed contact disconnects; And when selecting signal output part output low level, the coil losing electricity of relay, the current potential of the second dividing point will be consistent with ground terminal JGND because its normally closed contact is closed, therefore the 4th stabilivolt D4 can be kept to be in cut-off state all the time at this moment, and the current potential of the first dividing point can change with the change of power supply terminal JL voltage by because its normally opened contact disconnects.
Above-mentioned each triode is specially NPN type triode according to its connected mode, it will be clear for those skilled in the art that above-mentioned triode is replaced into metal-oxide-semiconductor can obtain equivalent technical scheme.
With reference to Fig. 5 and Fig. 6, the voltage regulator circuit of automobile current generator of the present invention comprises the first diode D1, the second diode D2, generator charging pilot lamp 3, accumulator 1, ignition switch 2 and above-mentioned Voltage Regulator Module, the positive pole of accumulator 1 is connected with the power supply terminal JL of Voltage Regulator Module with generator charging pilot lamp 3 through ignition switch 2, and the ground terminal JGND of Voltage Regulator Module is connected with the negative pole of accumulator 1; The charging indicator light end of automobile current generator 4 is connected with the positive pole of the second diode D2, and the negative pole of the second diode D2 is connected with the power supply terminal JL of Voltage Regulator Module; The accumulator positive of automobile current generator 4 is extremely connected with the positive pole of the first diode D1, the negative pole of the first diode D1 is connected with the positive pole of accumulator 1, the earth terminal of automobile current generator 4 is connected with the negative pole of accumulator 1, and the field coil 5 of automobile current generator 4 is connected between the power supply terminal JL of Voltage Regulator Module and the lead-out terminal JOUT of Voltage Regulator Module.
As a specific embodiment of Voltage Regulator Module shown in Fig. 5, this voltage comparator 6 adopts LM339; Temperature switch 7 adopts operating temperature value to be the closed type temperature switch of 10 DEG C; The model of the 3rd stabilivolt D3 and the 4th stabilivolt D4 is 2CW1, and voltage stabilizing value is 8.2V; The model of the 5th diode D5 is 1N4148W; First resistance is 10k Ω, the second resistance is 680 Ω, 3rd resistance is 1k Ω, 4th resistance is 510 Ω, and the 5th resistance is 1k Ω, and the 6th resistance is 1.8k Ω, 7th resistance is 1k Ω, 8th resistance is 1k Ω, and the 9th resistance is 1k Ω, and the tenth resistance is 1k Ω, 11 resistance is 680k Ω, and the 12 resistance is 1k Ω.For this specific embodiment, the output voltage of automobile current generator 4 is constant in 13.5V when temperature switch 7 disconnects, and constant in 15V when temperature switch 7 closes.
Structure of the present invention, feature and action effect is described in detail above according to graphic shown embodiment; the foregoing is only preferred embodiment of the present invention; but the present invention does not limit practical range with shown in drawing; every change done according to conception of the present invention; or be revised as the Equivalent embodiments of equivalent variations; do not exceed yet instructions with diagram contain spiritual time, all should in protection scope of the present invention.
Claims (9)
1. the Voltage Regulator Module of an automobile current generator, comprise driver element and the first control module, and power supply terminal, ground terminal and lead-out terminal, described driver element is connected between described power supply terminal and described ground terminal, described driver element, when the input end of driver element has electric current to input, makes described lead-out terminal and described ground terminal disconnect; Described first control module comprises the first bleeder circuit and the 3rd stabilivolt, described first bleeder circuit is connected between described power supply terminal and ground terminal, and the positive pole of described 3rd stabilivolt is connected with the input end of described driver element and the first dividing point of described first bleeder circuit respectively with negative pole; It is characterized in that,
Described Voltage Regulator Module also comprises the second control module and selection unit, described second control module comprises the second bleeder circuit and the 4th stabilivolt, described second bleeder circuit is connected between described power supply terminal and ground terminal, the positive pole of described 4th stabilivolt is connected with the input end of described driver element and the second dividing point of described second bleeder circuit respectively with negative pole, and the intrinsic standoff ratio of described second dividing point is greater than the intrinsic standoff ratio of described first dividing point; Described selection unit environment temperature higher than or equal setting threshold value time, select the state being controlled described driver element by described second control module, and when environment temperature is lower than described setting threshold value, select the state being controlled described driver element by described first control module.
2. the Voltage Regulator Module of automobile current generator according to claim 1, it is characterized in that, described selection unit comprises voltage comparator, homophase bleeder circuit, anti-phase bleeder circuit, the first clamping circuit and the second clamping circuit, described homophase bleeder circuit and anti-phase bleeder circuit are connected in parallel between described power supply terminal and ground terminal, the dividing point of described homophase bleeder circuit is connected with the in-phase input end of described voltage comparator, the dividing point of described anti-phase bleeder circuit is connected with the inverting input of described voltage comparator, described anti-phase bleeder circuit or described homophase bleeder circuit have temperature switch, the operating temperature value of described temperature switch equals described setting threshold value, make described voltage comparator environment temperature higher than or equal described setting threshold value time through selecting signal output part to export high level, and environment temperature lower than during described setting threshold value through described selection signal output part output low level,
The current potential of described first dividing point, when described selection signal output part exports high level, is pulled low to the state making described 3rd stabilivolt cut-off by described first clamping circuit; The current potential of described second dividing point, when described selection signal output part output low level, is pulled low to the state making described 4th stabilivolt cut-off by described second clamping circuit.
3. the Voltage Regulator Module of automobile current generator according to claim 2, it is characterized in that, described temperature switch is closed type temperature switch.
4. the Voltage Regulator Module of automobile current generator according to claim 3, it is characterized in that, described anti-phase bleeder circuit comprises the tenth resistance, the 11 resistance, the 12 resistance and described temperature switch, described 11 resistance is connected between the inverting input of described voltage comparator and described ground terminal, after described 12 resistance and the series connection of described temperature switch again and the circuit that formed of described tenth resistor coupled in parallel be connected between the inverting input of described power supply terminal and described voltage comparator.
5. the Voltage Regulator Module of automobile current generator according to claim 1, described selection unit comprises controller, temperature sensor, the first clamping circuit and the second clamping circuit, described controller receives the temperature signal that described temperature sensor exports, described controller described temperature signal represent environment temperature higher than or equal described setting threshold value time through selecting signal output part to export high level, and described temperature signal represent environment temperature lower than during described setting threshold value through described selection signal output part output low level;
The current potential of described first dividing point, when described selection signal output part exports high level, is pulled low to the state making described 3rd stabilivolt cut-off by described first clamping circuit; The current potential of described second dividing point, when described selection signal output part output low level, is pulled low to the state making described 4th stabilivolt cut-off by described second clamping circuit.
6. the Voltage Regulator Module of automobile current generator according to any one of claim 2 to 5, it is characterized in that, described first clamping circuit comprises the 3rd triode, the collector of described 3rd triode is connected with described first dividing point, the emitter of described 3rd triode is connected with described ground terminal, and the base stage of described 3rd triode is connected with described selection signal output part; Described second clamping circuit comprises the 5th diode, and the positive pole of described 5th diode is connected with described second dividing point and described selection signal output part respectively with negative pole.
7. the Voltage Regulator Module of automobile current generator according to any one of claim 2 to 5, it is characterized in that, described first clamping circuit comprises the normally opened contact of relay, described normally opened contact is connected between described first dividing point and described ground terminal, described second clamping circuit comprises the normally closed contact of described relay, described normally closed contact is connected between described second dividing point and described ground terminal, and the coil of described relay is connected between described selection signal output part and described ground terminal.
8. the Voltage Regulator Module of automobile current generator according to any one of claim 1 to 5, it is characterized in that, described driver element comprises the first resistance, first triode and the second triode, one end of described first resistance is connected with described power supply terminal, the other end of described first resistance is connected with the collector of the base stage of described first triode and described second triode, the collector of described first triode is connected with described lead-out terminal, the base stage of described second triode is as the input end of described driver element, the emitter of described first triode is connected with described ground terminal with the emitter of described second triode.
9. the voltage regulator circuit of an automobile current generator, comprise the first diode, the second diode, generator charging pilot lamp, accumulator, ignition switch and Voltage Regulator Module, the positive pole of described accumulator is connected with the power supply terminal of described Voltage Regulator Module with described generator charging pilot lamp through described ignition switch, and the ground terminal of described Voltage Regulator Module is connected with the negative pole of described accumulator; The charging indicator light end of automobile current generator is connected with the positive pole of described second diode, and the negative pole of described second diode is connected with the power supply terminal of described Voltage Regulator Module; The accumulator positive of automobile current generator is extremely connected with the positive pole of described first diode, the negative pole of described first diode is connected with the positive pole of described accumulator, the earth terminal of automobile current generator is connected with the negative pole of described accumulator, and the field coil of automobile current generator is connected between the power supply terminal of described Voltage Regulator Module and the lead-out terminal of described Voltage Regulator Module; It is characterized in that, the Voltage Regulator Module of described Voltage Regulator Module according to any one of claim 1 to 8.
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| CN2251216Y (en) * | 1996-07-05 | 1997-04-02 | 武树田 | Voltage regulator for electric generator of automobile |
| JP4800839B2 (en) * | 2006-05-23 | 2011-10-26 | 株式会社デンソー | Excitation current control device for field winding type rotating electrical machine for vehicle |
| CN201113534Y (en) * | 2007-09-14 | 2008-09-10 | 东莞市翔龙能源科技有限公司 | Ambient temperature regulating output voltage generator for cars |
| CN201188598Y (en) * | 2008-05-05 | 2009-01-28 | 贵州大学 | Monolithic circuit for automobile electronic regulator |
| CN101662253B (en) * | 2009-09-09 | 2012-01-18 | 史立伟 | Controller of double-voltage output alternating-current generator for motorcar |
| JP5452543B2 (en) * | 2011-04-28 | 2014-03-26 | 新電元工業株式会社 | Control circuit and control method |
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Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee after: ANHUI JIANGHUAI AUTOMOBILE GROUP Corp.,Ltd. Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee before: ANHUI JIANGHUAI AUTOMOBILE Co.,Ltd. |
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