TW201422468A - Universal control circuit of generator voltage regulator for all kinds of automobiles - Google Patents

Abstract

A universal control circuit of generator voltage regulator for all kinds of automobiles, which is to receive the signal of the AC or DC phase signal of the generator to be used to turn off and on the indicator light and protect the power element containing the drain and the source electrodes in the working circuit of the generator, and which contains an oscillating unit to provide a plurality of oscillating pulse signals; one phase detection unit, which includes an AC signal processing unit, a DC signal processing unit, a phase-loss detection and processing unit, and an indicator light control unit; an electric charge pump circuit, which includes a voltage doubling circuit unit and a switch control unit; and a rotor short circuit protection circuit, which includes a comparator unit and a digital logic circuit. Thus, the present invention can be suitable for different types of generators.

Description

Universal voltage regulator control circuit for various types of automotive generators

The invention relates to a voltage regulator control circuit widely used in various automobile generators, in particular to a control circuit applicable to different automobile generators.

The working circuit of the automobile generator system is mainly composed of a voltage regulator, a generator rotor, a stator coil, a rectifier bridge (D1-D6), an indicator light and a battery. When the car is started, the generator is driven by the internal combustion engine belt, and the excitation current flows into the rotating generator rotor to generate a magnetic field. The stator of the generator senses the magnetic field to generate alternating current, and the alternating current is converted into a direct current output through the rectifier bridge. The battery is charged to provide electricity for automotive electronics.

The working circuit of the generator system has the following three types: A type, B type and D+ type: Please refer to the first figure, which is a conventional type A generator system working circuit, which is commonly used in Japanese automobile generators, and is characterized by rotor 1 The excitation current is passed from the positive end of the battery 2 through the rotor 1 and then through the power crystal 3 to the negative end of the battery. Compared with the generator, the rotor excitation current flows into and out of the two carbon brushes of the generator. The rotor excitation current flows from the positive end of the carbon brush battery and flows out from the Field end through the rotor.

The signal detection system of the A-type generator circuit generates an AC voltage signal from the generator stator, and its frequency varies according to the rotation speed of the generator. The faster the rotation speed, the higher the frequency. The AC voltage signal is input to the phase (PHASE) end of the voltage regulator 4, and the internal logic circuit of the voltage regulator 4 detects the frequency. When the engine is just started and the generator just starts to rotate, the internal logic circuit of the voltage regulator 4 detects this. The AC frequency has not reached the rated value and the indicator light 6 is on. When the AC frequency reaches the rated value, the indicator light 6 is turned off.

In the rotor short circuit protection, it is composed of logic gate B, logic gate C, RS Flop, and the SC terminal detects the voltage value of the drain terminal of the external power transistor. When the rotor short circuit occurs, the SC terminal detects When the Drain voltage reaches the warning protection rating, the logic gate B and RS Flop send a signal from the logic gate C to close the loop output, and turn off the power crystal 3 to activate the function of protecting the power crystal.

Please refer to the second figure, which is the working circuit of the B type generator system, mainly used in the American automobile generator. It is characterized in that the excitation current of the rotor 7 is passed from the positive end of the battery 8 through the power crystal 9 and then through the rotor 7 to the battery. 8 negative end, compared to the generator, the rotor 7 excitation current is a two-carbon brush flowing through the generator respectively, the rotor 7 excitation current flows from the field end of the carbon brush, and flows out from the other carbon brush ground through the rotor 7.

The signal detection system of the B-type generator circuit generates an AC voltage signal by the generator, and the frequency thereof is different according to the rotation speed of the generator. The faster the rotation speed, the higher the frequency. The AC voltage signal is input to the PHASE terminal 11 of the voltage regulator 10, and the internal logic circuit of the voltage regulator 10 detects the frequency. When the engine is just started and the generator just starts to rotate, the internal logic circuit of the voltage regulator 10 detects The frequency of the AC voltage signal has not reached the rated value, and the indicator light 12 is on. When the AC frequency reaches the rated value, the indicator light 12 is turned off.

The rotor short-circuit protection function is composed of CSS comparators, AND4 and S3 in the regulator 10. When the A point and the B point are short-circuited, the CSS comparator will detect the voltage at point A (ie, the power crystal source voltage) compared with VTssc. When the rated interval value is reached, the Css output is high, and the S3 switch is switched to Ipd via the AND4 output to make GATE low, and the power transistor closes the loop output to start the rotor short-circuit protection function.

Please refer to the third figure for the D+ type generator system working circuit, mainly used in In the European automobile generator and heavy-duty vehicle system, after the stator 13 induces current, it outputs to the two directions, one current charges the battery 14, and the other current is rectified by the small rectifier bridge (D8~D10) of the generator and is input to the rotor 15 And the output of the battery 14 is passed from the positive end of the battery through the switch 16, the indicator light 17, D+18, and then through the rotor 15, the power crystal 19 to the negative end of the battery 14, said rotor excitation current.

When the switch 16 is connected, the representative car key has been transferred to the first stage, at which time the generator has not been started, but the onboard appliance has been able to obtain power from the battery 14, and the indicator light 17 is on. When the generator starts to operate, the induced current of the stator 13 gradually increases, and the current of the rotor 15 also increases, and the voltage of the D+ terminal of the voltage regulator 200 also increases. At this time, because the DC voltage difference between the two ends of the indicator light is lowered, the indicator light 17 is also extinguished, indicating that the driver has entered the power supply state.

Because the system working circuit of each type of generator is different, the applicable voltage regulator circuit is also different. At present, there is no voltage regulator circuit that can be applied to the above three types of generators, and can have both control indicator, rotor short circuit protection and electric charge. Pump function.

The main object of the present invention is to provide a voltage regulator control circuit widely used in various types of automobile generators, which can be applied to various working circuits of generators, and has a control indicator, a rotor short circuit protection and a charge pump function. .

In order to achieve the above object, the present invention is characterized in that it comprises an AC phase signal (Phase) or a DC phase signal (Phase) for receiving a generator for turning off or turning on the indicator light, and protecting the generator working circuit. a power component of the drain and the source, comprising an oscillating unit that provides a plurality of oscillating pulse signals; one phase detecting The circuit includes an AC signal processing unit, a DC signal processing unit, a phase loss detecting and processing unit, and an indicator light control unit; a charge pump circuit including a voltage doubler circuit unit and a switch control unit; and a rotor A short circuit protection circuit includes a comparator unit and a digital logic circuit.

As such, the invention can be adapted to different types of generators.

The above and other objects, advantages and features of the present invention will become more apparent from

The invention is generally applied to a voltage regulator control circuit of various automobile generators, which comprises a signal detection circuit, a charge pump circuit and a rotor protection circuit.

Referring to the fourth figure, the present invention is generally applied to a signal detecting circuit of a voltage regulator control circuit of various types of automobile generators, which is an alternating phase signal (Phase) or a DC phase signal (Phase) of a generator. Turn the indicator off or on to indicate if the generator is functioning properly.

The detection circuit includes an oscillation unit 20, an AC signal processing unit 22, a DC signal processing unit 24, a phase loss detection and processing unit 26, and an indicator light control unit 28.

The oscillating unit 20 provides a first oscillating pulse signal (CLK1) 30, a second oscillating pulse signal (CLK2) 32, a third oscillating pulse signal (CLK3) 34, and a fourth oscillating pulse signal (CLK4). 36, the first oscillating pulse signal (CLK1) is 1:12.8 kHz, the second oscillating pulse signal (CLK2) is 2:37.5 Hz, the third oscillating pulse signal (CLK3) is 3: 9.375 Hz, and the fourth oscillation The pulse signal (CLK4) is 4:37.5 Hz. The first oscillating pulse signal (CLK1) 30 is the highest frequency signal of the system, and the phase signal is densely detected. (Phase) 38; the second oscillating pulse signal (CLK2) 32 has a fixed multiple relationship with the third oscillating pulse signal (CLK3) 34, or may be the same frequency, but the same oscillating pulse signal; the fourth oscillating pulse The wave signal (CLK4) 36 is a warning standard for the phase loss warning signal.

The AC signal processing unit 22 is configured to receive a phase signal (2017) of the generator, a first oscillating signal (CLK1) 30, and a third oscillating pulse signal (CLK3) 34, when the phase signal 38 (Phase) is In the case of a DC signal, the unit does not operate. When the phase signal 38 (Phase) is an AC signal, the unit is activated to output a second phase signal (Phase 2) 40; the AC signal processing unit 22 uses the first oscillation signal (CLK1). Based on 30, as a reset signal of phase 38 detection, to continuously detect the signal phase (38); the AC signal processing unit 22 uses the third oscillatory pulse signal (CLK3) 34 as a counter clock. The alternating phase signal 38 (Phase) is used as the counting reset signal, and the result is used to output a second phase signal (Phase 2) 40 according to the frequency of the alternating phase signal 38 (Phase).

A DC signal processing unit 24 is configured to receive a phase signal (38) of the generator, the first oscillating signal (CLK1) 30, and a second oscillating pulse signal (CLK2) 32, when the phase signal 38 (Phase) When the signal is AC, the unit is not activated. When the phase signal 38 is a DC signal, the unit is activated to output a first phase signal (Phase 1) 42. A phase loss detection and processing unit 26 is used. Receiving the first phase signal (Phase1) 42 or the second phase signal (Phase 2) 40 and the fourth oscillation pulse signal (CLK4) 36, according to the first phase signal (Phase 42) or the second phase signal (Phase) 40 The frequency is high and low, and a phase loss warning signal 44 is output; when the frequency of the first phase signal (Phase1) 42 or the second phase signal (Phase 2) 40 is lower than the fourth oscillation pulse signal (CLK4) 36 When the time is high, the phase loss warning is cancelled. When the frequency of the first phase signal 42 (Phase 1) or the second phase signal (Phase 2) 40 is lower than the fourth oscillation pulse signal (CLK4) 36, the phase loss warning is started. . And an indicator light control unit 28 for receiving the phase loss warning signal 44, and outputting a light control signal (Lamp CLT) 46 to control the indicator light.

When the indicator light is on, it means that the generator is not working properly, and when the indicator is off, it means the generator is working normally.

The invention utilizes the detection of the phase signal as a way to eliminate the indicator light, thereby judging whether the generator is operating normally, and is applicable to various types of automobile generators.

The invention is generally applied to a rotor protection circuit of a voltage regulator control circuit of various automobile generators, which is used for protecting a power crystal from being caused by a large current when a short circuit of the rotor is short, thereby causing high heat and burn damage. To ensure that the voltage regulator circuit can still operate normally, the working circuit of the generator has a voltage regulator, a rectifier bridge, a battery and a power crystal with a drain and a source.

Please refer to the fifth and sixth figures. This is the first embodiment of the rotor short circuit protection circuit which is widely used in various types of automobile generators. The rotor excitation current of the generator circuit is first passed through the rotor by the positive end of the battery. After passing through the power crystal to the negative terminal of the battery, it includes a comparator unit 50 and a digital logic system 52 for protecting the power crystal 54 in the operating system from overcurrent when the rotor of the generator is short-circuited. Damaged by high temperature, the rotor excitation current in this embodiment is applied by the positive terminal of the battery through the rotor and then through the power crystal 54 to the negative terminal of the battery for the A-type generator and the D+ generator working circuit.

The comparator unit 50 is configured to detect the drain 56 of the power crystal 54 (Drain) And source 58 (Source) voltage, and the voltage difference between the drain 56 (Drain) and the source 58 (Source) is compared with the internal rated reference voltage for outputting an indication signal 60, when the drain 56 When the voltage difference between the (Drain) and the source 58 (Source) reaches the rated reference voltage, the indication signal 60 outputs an enable signal, which may be a high voltage or a specific sequence digital signal (eg, 8'b 10101010); When the voltage difference between the drain 56 (Source) and the source 58 (Source) does not reach the rated reference voltage, the indication signal 60 outputs a turn-off signal, which may be a low voltage or a specific sequence digital signal (eg, 8' B00110011). And a digital logic system 52 for receiving the indication signal 60 of the comparator unit 50, which is provided with a short circuit operation reset unit 62 and a power crystal control unit 64, when the indication signal 60 is a high voltage or a specific sequence digital signal (eg: 8 At 'b 10101010', the power crystal control unit 64 turns off the power crystal 54 to make it non-conducting, activates the rotor protection mode, and activates the short-circuit operation reset unit 62 to continuously detect whether the generator rotor is still in a short-circuit state. When the rotor is not short-circuited, the power crystal control unit 64 operates normally, and the short-circuit operation reset unit 62 is in a standby state.

Referring to the seventh and eighth figures, the present invention is generally applied to a second embodiment of a rotor short circuit protection circuit for various types of automobile generators. The rotor excitation current of the generator circuit is passed through the power crystal of the positive end of the battery, and then Pass the rotor to the negative end of the battery. It includes a comparator circuit 68 and a digital logic system 70 for protecting the rotor of the generator from being short-circuited, and the power crystal 72 in the working system is not damaged by the high temperature. In this embodiment, the rotor excitation current is positive by the battery. After passing through the power crystal 72, the terminal passes through the rotor to the negative end of the battery, which is the application of the B-type generator working circuit.

The comparator unit 68 is configured to detect the drain 74 and source (source) voltages of the power crystal 72, and to connect the drain 74 and the source 76 (Source). The voltage difference is compared with the internal rated reference voltage to output an indication signal 78. When the voltage difference between the drain 74 (Source) and the source 76 (Source) reaches the rated reference voltage, the indication signal 78 is output. The start signal can be a high voltage or 8'b10101010 or other specific sequence digital signal composed of 0 and 1; when the voltage difference between the drain 74 (Source) and the source 76 (Source) does not reach the rated reference At voltage, the indication signal 78 outputs a turn-off signal, which may be a low voltage or 8'b00110011 or other specific sequence digital signal consisting of 0 and 1.

The digital logic system 70 is configured to receive the indication signal 78 of the comparator unit 68, which is provided with a short circuit operation reset unit 80 and a power crystal control unit 82, when the indication signal 78 is a high voltage or a specific sequence digital signal (eg: 8' b 10101010), at this time, the power crystal control unit 82 turns off the power crystal 72 to make it non-conducting, activates the rotor protection type, and activates the short-circuit operation reset unit 80 to regularly detect whether the generator rotor is still in a short-circuit state. When the rotor is not short-circuited, the power crystal control unit 82 operates normally, and the short-circuit operation reset unit 80 is in a standby state.

If the rotor is short-circuited, in order to avoid damage to the power crystals 54, 72 due to high temperature, to affect the normal operation of the generator, the above system method can be solved, and the system can be applied to various types of generators. Working circuit use.

The present invention is generally applicable to the charge pump circuit of the voltage regulator control circuit of various automobile generators. Referring to the ninth to sixteenth drawings, the power element 92 in the working circuit 90 of the generator is protected. The working circuit 90 includes a battery 94, a power component 92 and a rotor 96. The charge pump circuit includes a voltage doubling circuit unit 100 and a switch control unit 101.

The voltage doubling circuit unit 100 is configured to receive a stable voltage signal V(BAT) 102 and a voltage double control signal 104, and the voltage doubled control signal 104 is as shown in FIG. The output of the voltage doubler signal 106 for maintaining the voltage doubler circuit unit 100 is stable; wherein the stable voltage signal 102 is a battery voltage, the voltage doubler control signal 104 is a pulse signal of a fixed frequency, and the voltage doubled signal 106 is tenth. The two figures are shown. As shown in the ninth diagram, the voltage doubling circuit unit 100 is composed of a resistor R1 108, a resistor R2 110, a diode D1 112, a diode D2 114, a capacitor C1 116, a power crystal Q6 120, and an input signal processor Level Shift 122.

A switch control unit 101 includes a first switch unit 124 and a second switch unit 126 for receiving a switch control signal 128. The waveform of the switch control signal 128 is a thirteenth diagram, and when the switch control signal 128 is low When the potential is low, the first switching unit 124 is turned on, so that the voltage multiplication signal 106 of the voltage doubling circuit unit 100 outputs the startup power component 92 to be turned on, so that the working circuit 90 forms a loop, and the switch control signal 128 turns off the second switching unit 126. When the switch control signal 128 is high, the output of the voltage doubler signal 106 of the voltage doubler circuit unit 100 continues, and the first switch unit 124 is turned off, so that the voltage doubler circuit unit 100 is doubled. The output of the voltage signal 106 is not passable, and the power element 92 is not turned on, and the second switching unit 126 is turned on, so that the residual power of the power element 92 can be discharged to the ground. The switch control unit 101 is composed of a power crystal Q5 118, a power crystal Q4 130, and a Zener diode ZD1 132.

In addition, a voltage control signal processing unit 134 may be further included for receiving the voltage doubler control signal 104 and the switch control signal 128 at the same time, so that the voltage doubled control signal 104 can be a pulse wave signal of a variable frequency, and when the switch control signal 128 is At low potential (low), as shown in Figure 16, the frequency of the voltage doubler control signal is high to ensure sufficient The charge pump output is as shown in Fig. 14; when the switch control signal 128 is high, the frequency of the voltage doubler control signal is low because the switch control unit is turned off and the charge pump is not output. The operating current of the circuit can be appropriately reduced to reduce power loss.

If so, the leakage of the charge pump can be interrupted, and the on-resistance of the power crystal 92 can be prevented from becoming large, and the power consumed by the current flow is increased, so that the service life is shortened due to overheating.

In summary, please refer to the seventeenth to nineteenthth views, the present invention can be applied to the A-type, B-type and D+ type generator circuits to make them more practical.

The specific embodiments of the present invention are set forth in the detailed description of the preferred embodiments of the present invention, and are not intended to limit the scope of the invention to the embodiments. Various variations of the implementation are within the scope of the invention.

20‧‧‧ Shock unit

22‧‧‧AC signal processing unit

24‧‧‧DC signal processing unit

26‧‧‧ Phase loss detection and processing unit

28‧‧‧ indicator control unit

30‧‧‧First oscillating pulse signal (CLK1)

32‧‧‧Second oscillating pulse signal (CLK2)

34‧‧‧ Third oscillating pulse signal (CLK3)

36‧‧‧ fourth oscillating pulse signal (CLK4)

38‧‧‧Detecting Phase Signal (Phase)

40‧‧‧Second phase signal (Phase2)

42‧‧‧First phase signal (Phase1)

44‧‧‧ Missing warning signal

46‧‧‧Light Control Signal (Lamp CLT)

50‧‧‧ Comparator unit

52‧‧‧Digital Logic System

54‧‧‧Power crystal

56‧‧‧汲polar

58‧‧‧ source

60‧‧‧ indication signal

62‧‧‧Short-circuit operation reset unit

64‧‧‧Power Crystal Control Unit

68‧‧‧ Comparator circuit

70‧‧‧Digital Logic System

72‧‧‧Power crystal

74‧‧‧汲polar

76‧‧‧ source

78‧‧‧ indication signal

80‧‧‧Short-circuit operation reset unit

82‧‧‧Power Crystal Control Unit

90‧‧‧Working circuit

92‧‧‧Power components

94‧‧‧Battery

96‧‧‧Rotor

100‧‧‧ double voltage circuit unit

101‧‧‧Switch control unit

102‧‧‧With stable voltage signal

104‧‧‧double pressure control signal

106‧‧‧ double pressure signal

108‧‧‧Resistor R1

110‧‧‧Resistor R2

112‧‧‧Diode D1

114‧‧‧Diode D2

116‧‧‧Capacitor C1

118‧‧‧Power Crystal Q5

120‧‧‧Power Crystal Q6

122‧‧‧Input signal processor

124‧‧‧First switch unit

126‧‧‧Second switch unit

128‧‧‧Switch control signal

130‧‧‧Power Crystal Q4

132‧‧‧Zina diode ZD1

134‧‧‧double pressure control signal processing unit

The first picture shows the system working circuit diagram of the conventional A-type generator.

The second picture shows the system working circuit diagram of the conventional B-type generator.

The third figure is the system working circuit diagram of the conventional D+ generator.

The fourth figure is a signal detection circuit diagram of a voltage regulator circuit generally used in various types of automobile generators.

The fifth figure is a circuit diagram of a first embodiment of a rotor short circuit protection circuit for a voltage regulator circuit of various types of automobile generators.

Fig. 6 is a schematic view showing the operation of the first embodiment of the rotor short circuit protection circuit of the voltage regulator circuit of the various types of automobile generators.

The seventh figure is a circuit diagram of a second embodiment of a rotor short circuit protection circuit for a voltage regulator circuit of various types of automobile generators.

The eighth figure is a schematic view showing the operation of the second embodiment of the rotor short circuit protection circuit of the voltage regulator circuit of various types of automobile generators.

The ninth figure is a charge pump circuit diagram of the voltage regulator circuit of the present invention.

The tenth figure is the working block diagram of the ninth figure.

The eleventh figure is a waveform diagram of the voltage doubler control signal of the fixed frequency of the tenth figure.

Figure 12 is a waveform diagram of the output of the voltage doubled signal of the tenth figure.

The thirteenth picture is a waveform diagram of the switch control signal of the tenth figure.

Figure 14 is a waveform diagram of the voltage doubler control signal of the varying frequency of the tenth figure.

The fifteenth figure is a waveform diagram of the output of the double voltage signal of the fourteenth figure.

The sixteenth figure is the waveform diagram of the switch control signal of the fifteenth figure.

Figure 17 is a schematic view of the present invention applied to a type A generator.

The eighteenth drawing is a schematic view of the present invention applied to a B-type generator.

The nineteenth figure is a schematic view of the invention applicable to a D+ type generator.

20‧‧‧ Shock unit

22‧‧‧AC signal processing unit

24‧‧‧DC signal processing unit

26‧‧‧ Phase loss detection and processing unit

28‧‧‧ indicator control unit

30‧‧‧First oscillating pulse signal (CLK1)

32‧‧‧Second oscillating pulse signal (CLK2)

34‧‧‧ Third oscillating pulse signal (CLK3)

36‧‧‧ fourth oscillating pulse signal (CLK4)

38‧‧‧Detecting Phase Signal (Phase)

40‧‧‧Second phase signal (Phase2)

42‧‧‧First phase signal (Phase1)

44‧‧‧ Missing warning signal

46‧‧‧Light Control Signal (Lamp CLT)

Claims (10)

A voltage regulator control circuit widely used in various types of automobile generators, which receives an AC phase signal (Phase) or a DC phase signal (Phase) of a generator for turning off or turning on an indicator light, and protecting a generator working circuit The power component having a drain and a source includes: an oscillating unit, which provides a first oscillating pulse signal (CLK1), a second oscillating pulse signal (CLK2), and a third oscillating pulse signal. (CLK3) and fourth oscillating pulse signal (CLK4), stable voltage signal V(BAT) and one voltage control signal, the frequency of the second oscillating pulse signal (CLK2) and the third oscillating pulse signal (CLK3) The system has a fixed multiple relationship; the phase detection circuit includes an AC signal processing unit, a DC signal processing unit, a phase loss detection and processing unit, and an indicator light control unit, wherein the AC signal processing unit and the DC signal processing unit, It is used to receive the phase signal of the generator; after the phase signal is processed, when the phase loss detection and processing unit detects the phase loss state, the phase loss warning signal is activated, and the indicator control unit uses To receive the missing phase It illustrates the signal, the control signal output of the lamp (Lamp CLT) to control lights. A charge pump circuit includes a voltage doubler circuit unit and a switch control unit for receiving the stable voltage signal V(BAT) and a voltage doubled control signal, wherein the voltage doubled control signal is used The switch control unit includes a first switch unit and a second switch unit for receiving a switch control signal to control the opening or closing of the charge pump to maintain a voltage doubler signal output that is stable. Output; and a rotor short circuit protection circuit; comprising a comparator unit and a digital logic The comparator unit is configured to synchronously detect the drain and source voltages of the power crystal, and compare the voltage difference between the drain and the source with an internal rated reference voltage for outputting a The indication signal, the digital logic circuit receives the indication signal to turn off or turn on the power crystal and rotor short circuit protection mode. The voltage regulator control circuit generally used in various types of automobile generators, as described in claim 1, wherein the alternating current signal processing unit is configured to receive a phase signal (Phase) of the generator, the first The oscillating signal (CLK1) and the third oscillating pulse signal (CLK3), when the phase signal is a DC signal, the unit does not operate, and when the phase signal is an ac signal, the unit is activated to output a second phase signal (Phase 2), the DC signal processing unit is configured to receive a phase signal (Phase) of the generator, the first oscillating signal (CLK1), and a second oscillating pulse signal (CLK2). When the signal is an AC signal, the unit does not operate. When the phase signal is a DC signal, the unit is activated to output a first phase signal (Phase1). The phase loss detection and processing unit is used. Receiving the first phase signal (Phase1) or the second phase signal (Phase2) and the fourth oscillation pulse signal (CLK4) according to the frequency of the first phase signal (Phase) or the second phase signal (Phase), and outputting A missing phase warning signal. The switch control unit includes a first switch unit and a second switch unit for receiving a switch control, as described in claim 1 for a voltage regulator control circuit for various types of automobile generators. a signal, when the switch control signal is low (low), the first switch unit is turned on, so that the voltage doubler output of the voltage doubler circuit unit starts the power component to be turned on, so that the working circuit forms a loop, and the switch control signal Turning off the second switch unit to make it not operate; when the switch control signal is high, the voltage doubler signal output of the voltage doubler circuit unit continues. The first switch unit is turned off, so that the voltage doubler signal output of the voltage doubler circuit unit is not passed, the power component is not turned on, and the second switch unit is turned on, so that the residual power of the power component can be discharged to the ground. As described in claim 1, the voltage regulator control circuit is generally used in various types of automobile generators, and the AC signal processing unit uses the third oscillation pulse signal (CLK3) as a counter clock to transmit an AC phase signal ( Phase) as the counting reset signal, according to the frequency of the alternating phase signal (Phase), the result is used to output a second phase signal (Phase2); when the DC signal processing unit uses the second oscillatory pulse signal (CLK2) as a counter Pulse, the DC phase signal (Phase) as a count reset signal, the result is used to output a first phase signal (Phase1). The voltage regulator control circuit generally used in various types of automobile generators as described in claim 1 of the patent scope, the phase loss detecting and processing unit, when the first phase signal (Phase1) or the second phase signal (Phase2) When the frequency is higher than the fourth oscillating pulse signal (CLK4), the phase loss warning is cancelled, when the frequency of the first phase signal (Phase1) or the second phase signal (Phase2) is lower than the fourth oscillating pulse signal (CLK4) When it is low, the phase loss warning is activated. The voltage regulator control circuit generally used in various types of automobile generators, as described in claim 1, wherein the alternating current signal processing unit and the direct current signal processing unit are based on the first oscillating signal (CLK1) as a phase The signal is reset to continuously detect the phase signal (Phase). The voltage regulator control circuit is generally used in various types of automobile generators as described in claim 1, wherein the voltage doubler control signal can be a pulse signal of a fixed frequency. The voltage regulator control circuit generally used in various types of automobile generators, as described in claim 1, wherein the charge pump circuit further includes a voltage control signal processing unit for simultaneously receiving the double voltage control signal and Switching the control signal so that the voltage doubler control signal can be a pulse wave signal of a varying frequency. When the switch control signal is low (low), the frequency of the pulse wave signal is high to ensure that there is sufficient charge pump output; When the switch control signal is high, the frequency of the pulse signal is low, which can appropriately reduce the operating current of the circuit and reduce the power loss. For example, the utility model relates to the rotor short circuit protection circuit of various automobile generators, wherein the digital logic circuit comprises a short circuit operation reset unit and a power crystal control unit; when the rotor short circuit does not occur, the power crystal The control unit operates normally, and the short-circuit operation reset unit is in a standby state; when a rotor short-circuit occurs, the rotor short-circuit protection function is activated, and at this time, the short-circuit operation reset unit is started, and the generator rotor circuit is regularly and continuously detected whether the generator rotor circuit is still in a short-circuit state. The power crystal control unit controls the power crystal switch in a rotor short circuit protection mode. The voltage regulator control circuit generally used in various types of automobile generators, as described in claim 1, wherein in the rotor short circuit, when the voltage difference between the drain and the source reaches the rated reference voltage, the rotor Short circuit, the start signal is a specific sequence digital signal composed of 0 and 1. When the voltage difference between the drain and the source does not reach the rated reference voltage, the rotor is not short-circuited, and the turn-off signal is other specific sequence digits composed of 0 and 1. signal.