CN214506875U - Commercial power automatic identification voltage-multiplying control circuit and system - Google Patents
Commercial power automatic identification voltage-multiplying control circuit and system Download PDFInfo
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- CN214506875U CN214506875U CN202023297573.5U CN202023297573U CN214506875U CN 214506875 U CN214506875 U CN 214506875U CN 202023297573 U CN202023297573 U CN 202023297573U CN 214506875 U CN214506875 U CN 214506875U
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Abstract
The utility model discloses a commercial power automatic identification voltage-multiplying control circuit, which comprises an alternating current signal detection module and an alternating current voltage value detection module, wherein the alternating current signal detection module is used for detecting whether alternating current is used for inputting, if alternating current is used for inputting, the alternating current voltage value detection module compares the input alternating current with reference voltage and outputs a comparison result through high and low levels; the alternating voltage value detection module mainly comprises a double-path operational amplifier circuit and other resistance-capacitance devices. The utility model also provides a commercial power automatic identification voltage-multiplying control system, mainly be through the above-mentioned switching on and off of output signal control opto-isolator-bidirectional thyristor through commercial power automatic identification voltage-multiplying control circuit to realize opening and turn-off of voltage-multiplying circuit. The utility model discloses the effectual not general problem of equipment that leads to of domestic and foreign mains voltage difference of having solved, simultaneously, the utility model discloses can realize that modularization, circuit are small, detect accurately, control is stable.
Description
Technical Field
The utility model relates to a control circuit, in particular to commercial power automatic identification voltage-multiplying control circuit and system.
Background
The method is characterized in that the method comprises the steps of firstly, obtaining a power supply part of equipment, then, obtaining a power supply part of the equipment, and finally, obtaining the power supply part of the equipment.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a commercial power automatic identification voltage-doubling control circuit which can quickly and accurately identify commercial power voltage and control voltage doubling aiming at the defects of the prior art.
The technical scheme is as follows: the invention provides a commercial power automatic identification voltage-doubling control circuit, which comprises an alternating current signal detection module and an alternating current voltage value detection module, wherein the alternating current signal detection module is used for detecting whether alternating current is used for inputting, if alternating current is used for inputting, the alternating current voltage value detection module compares the input alternating current with reference voltage, and outputs a comparison result through high and low levels; the alternating voltage value detection module comprises a tenth resistor R10, one end of a tenth resistor R10 is an alternating current zero line input end, and the other end of a tenth resistor R10 is respectively connected with one end of an eleventh resistor R11, the cathode of a third diode D3 and the cathode input end of a first amplifier U1; one end of a ninth resistor R9 is connected with a power VCC, and the other end of the ninth resistor R9 is respectively connected with the anode input end of the first amplifier U1 and the cathode of the zener diode D4; the other end of the eleventh resistor R11, the anode of the third diode D3 and the anode of the zener diode D4 are grounded; the reference level of the voltage stabilizing diode D4 is respectively connected with the anode input end of the first amplifier U1, one end of the second capacitor C2 and the anode input end of the second amplifier U2; one end of a twelfth resistor R12 is connected with the power supply VCC, and the other end of the twelfth resistor R12 is connected with one end of a thirteenth resistor R13; the other end of the thirteenth resistor R13 is respectively connected with the output end of the first amplifier U1, one end of the third capacitor C3 and the negative input end of the second amplifier U2; the other end of the second capacitor C2 and the other end of the third capacitor C3 are both grounded; the output of the second amplifier U2 is a signal output.
The utility power automatic identification voltage-multiplying control system comprises a utility power automatic identification voltage-multiplying control circuit, an optocoupler-controlled bidirectional thyristor and a voltage-multiplying circuit, wherein the utility power automatic identification voltage-multiplying control circuit is connected with the voltage-multiplying circuit through the optocoupler-bidirectional thyristor, an output signal of the utility power automatic identification voltage-multiplying control circuit controls the on-off of the optocoupler-bidirectional thyristor, the optocoupler-bidirectional thyristor is switched on, then the voltage-multiplying circuit is started, and alternating current supplies power to a load through the voltage-multiplying circuit; when the optocoupler-bidirectional thyristor is disconnected, the alternating current directly supplies power to the load; the commercial power automatic identification voltage-doubling control circuit comprises an alternating current signal detection module and an alternating current voltage value detection module, wherein the alternating current signal detection module is used for detecting whether alternating current is used for inputting, if alternating current is input, the alternating current voltage value detection module compares the input alternating current with a reference voltage, and a comparison result is output through high and low levels; the alternating voltage value detection module comprises a tenth resistor R10, one end of a tenth resistor R10 is an alternating current zero line input end, and the other end of a tenth resistor R10 is respectively connected with one end of an eleventh resistor R11, the cathode of a third diode D3 and the cathode input end of a first amplifier U1; one end of a ninth resistor R9 is connected with a power VCC, and the other end of the ninth resistor R9 is respectively connected with the anode input end of the first amplifier U1 and the cathode of the zener diode D4; the other end of the eleventh resistor R11, the anode of the third diode D3 and the anode of the zener diode D4 are grounded; the reference level of the voltage stabilizing diode D4 is respectively connected with the anode input end of the first amplifier U1, one end of the second capacitor C2 and the anode input end of the second amplifier U2; one end of a twelfth resistor R12 is connected with the power supply VCC, and the other end of the twelfth resistor R12 is connected with one end of a thirteenth resistor R13; the other end of the thirteenth resistor R13 is respectively connected with the output end of the first amplifier U1, one end of the third capacitor C3 and the negative input end of the second amplifier U2; the other end of the second capacitor C2 and the other end of the third capacitor C3 are both grounded; the output of the second amplifier U2 is a signal output.
The alternating current signal detection module comprises a first resistor R1, one end of a first resistor R1 is an alternating current live wire input end, the other end of the first resistor R1 is respectively connected with the cathode of a first diode D1, one end of a second resistor R2 and the base of a first triode Q1, and the anode of the first diode D1, the other end of the second resistor R2 and the emitter of the first triode Q1 are all grounded; a collector of the first triode Q1 is connected with one end of a third resistor R3, the other end of the third resistor R3 is respectively connected with a base of the second triode Q2 and one end of a fourth resistor R4, and the other end of the fourth resistor R4 is respectively connected with an emitter of the second triode Q2, one end of a seventh resistor R7, one end of an eighth resistor R8 and a power supply VCC; a collector of the second triode Q2 is respectively connected with one end of the first capacitor C1 and one end of the fifth resistor R5, and the other end of the fifth resistor R5 is respectively connected with a base of the third triode Q3 and one end of the sixth resistor R6; the other end of the first capacitor C1, the other end of the sixth resistor R6 and the emitter of the third triode Q3 are all grounded; the collector of the third triode Q3 is respectively connected with the base of the fourth triode Q4 and the other end of the seventh resistor R7; a collector of the fourth triode Q4 is connected to the other end of the eighth resistor and the cathode of the second diode D2, respectively; an anode of the second diode D2 is connected to one end of the third capacitor C3 through a fourteenth resistor R14.
Further, the first amplifier U1 and the second amplifier U2 employ a dual voltage comparator LM 393. Therefore, the volume of the whole circuit can be reduced, and the circuit is convenient to use in small-size electric appliances.
Further, the TL431 is used as the zener diode D4, so that the reference voltage can be more stably supplied.
The working principle is as follows: the utility model discloses constitute with double-circuit fortune circuit and other resistance-capacitance ware and exchange and detect judgement circuit, send alternating current signal to the negative pole input of comparator and positive input 2.5V benchmark comparison through resistance-capacitance step-down sampling circuit, control comparator output height and low level and realize that AC voltage opens voltage doubling rectifier circuit and AC when too high and turn-off voltage doubling rectifier circuit's function when too high with the low level.
Has the advantages that: compared with the prior art, the utility model can automatically identify the voltage value of the current commercial power and automatically adjust the voltage value of the input electric appliance according to the requirement, thereby enabling the electric appliance to work normally; like this effectually solved the not general problem of equipment that domestic and international mains voltage difference leads to, simultaneously, the utility model discloses can realize modularization, circuit small, it is accurate to detect, and control is stable.
Drawings
Fig. 1 is a schematic circuit diagram of the present invention;
FIG. 2 is a schematic circuit diagram of the present invention using a dual voltage comparator;
FIG. 3 is a schematic diagram of a dual voltage comparator power supply circuit;
fig. 4 is the circuit diagram of the utility model provides a commercial power automatic identification voltage-multiplying control system.
Detailed Description
Reference will now be made in detail to the accompanying drawings.
Example (b):
as shown in fig. 1, the present embodiment provides a commercial power automatic identification voltage-doubling control circuit, wherein one end of a first resistor R1 is a first port, the other end of the first resistor R1 is respectively connected to a cathode of a first diode D1, one end of a second resistor R2, and a base of a first triode Q1, and an anode of the first diode D1, the other end of the second resistor R2, and an emitter of the first triode Q1 are all grounded; a collector of the first triode Q1 is connected with one end of a third resistor R3, the other end of the third resistor R3 is respectively connected with a base of the second triode Q2 and one end of a fourth resistor R4, and the other end of the fourth resistor R4 is respectively connected with an emitter of the second triode Q2, one end of a seventh resistor R7, one end of an eighth resistor R8, one end of a ninth resistor R9 and a power supply VCC; a collector of the second triode Q2 is respectively connected with one end of the first capacitor C1 and one end of the fifth resistor R5, and the other end of the fifth resistor R5 is respectively connected with a base of the third triode Q3 and one end of the sixth resistor R6; the other end of the first capacitor C1, the other end of the sixth resistor R6 and the emitter of the third triode Q3 are all grounded; the collector of the third triode Q3 is respectively connected with the base of the fourth triode Q4 and the other end of the seventh resistor R7; a collector of the fourth triode Q4 is connected to the other end of the eighth resistor and the cathode of the second diode D2, respectively; one end of the tenth resistor R10 is a second port, and the other end of the tenth resistor R10 is connected to one end of the eleventh resistor R11, the cathode of the third diode D3, and the negative input terminal of the first amplifier U1, respectively; the other end of the ninth resistor R9 is connected to the positive input end of the first amplifier U1 and the cathode of the zener diode D4 respectively; the other end of the eleventh resistor R11, the anode of the third diode D3 and the anode of the zener diode D4 are grounded; the reference level of the voltage stabilizing diode D4 is respectively connected with the anode input end of the first amplifier U1, one end of the second capacitor C2 and the anode input end of the second amplifier U2; one end of a twelfth resistor R12 is connected with the power supply VCC, the other end of the twelfth resistor R12 is respectively connected with one end of a thirteenth resistor R13, and the other end of the twelfth resistor R12 is a third port; the other end of the thirteenth resistor R13 is respectively connected with the output end of the first amplifier U1, one end of the third capacitor C3, one end of the fourteenth resistor R14 and the negative input end of the second amplifier U2; the other end of the second capacitor C2 and the other end of the third capacitor C3 are both grounded; the anode of the second diode D2 is connected to the other end of the fourteenth resistor R14; the output of the second amplifier U2 is a fourth port.
The present embodiment provides a circuit in which the power source VCC simultaneously supplies power to the first amplifier U1 and the second amplifier U2. VCC takes 12V dc voltage with TL431 as zener diode D4.
2-3, wherein the first amplifier U1 and the second amplifier U2 can directly adopt an integrated dual-voltage comparator, preferably LM 393; pin 1 of the dual-voltage comparator is an output terminal of a first amplifier U1, pin 2 is a negative input terminal of a first amplifier U1, pin 3 is a positive input terminal of a first amplifier U1, pin 5 is a positive input terminal of a second amplifier U2, pin 6 is a positive input terminal of the second amplifier U2, pin 7 is an output terminal of a second amplifier U2, pin 4 and pin 8 are power supply pins for the dual-voltage comparator LM393, wherein pin 4 is grounded, pin 8 is connected with a power supply VCC through a fifteenth resistor R15, and two ends of a fourth capacitor C4 are respectively connected with pin 4 and pin 8. This provides a stable power supply to power dual voltage comparator LM 393.
Adopt the utility model provides a when commercial power automatic identification voltage doubling control circuit controlled voltage doubling circuit, the commercial power automatic identification voltage doubling control circuit of this embodiment passes through opto-coupler control bidirectional thyristor and voltage doubling circuit connection, switches on or is closed through output signal control bidirectional thyristor to realize the voltage doubling when needs voltage doubling. As shown in fig. 4, the live wire of the alternating current is connected to the first port (one end of the first resistor R1) through the fifth capacitor C5 and the sixteenth resistor R16 in sequence, and the zero wire of the alternating current is connected to the second port (one end of the tenth resistor R10) through the eighteenth resistor R18 and the seventeenth resistor R17 in sequence; the power supply VCC is connected with a third port (the other end of the twelfth resistor R12) through a nineteenth resistor R19, the third port is connected with the power supply VCC through a resistor, and the third port is mainly used for voltage-multiplying starting delay control; the fourth port (output of the second amplifier U2) is connected to the input of the opto-triac U3.
When alternating current is connected into the circuit, the first triode Q1, the second triode Q2 and the third triode Q3 are all conducted, and the fourth triode Q4 is not conducted; at this time, if the ac power of more than 190V is connected, the voltage of the negative input end of the first amplifier U1 is higher than the voltage of the positive input end of the first amplifier U1, the output end of the first amplifier U1 outputs a low level, the voltage of the positive input end of the second amplifier U2 is higher than the voltage of the negative input end of the second amplifier U2, therefore, the output end of the second amplifier U2 outputs a high level, the optical coupling side of the opto-triac U3 is not turned on, the voltage doubling circuit is not started, and the input ac power directly supplies power to the load. If the accessed alternating current is the alternating current less than 140V, the voltage of the negative electrode input end of the first amplifier U1 is lower than the voltage of the positive electrode input end of the first amplifier U1, the output end of the first amplifier U1 outputs a high level, the voltage of the positive electrode input end of the second amplifier U2 is lower than the voltage of the negative electrode input end of the second amplifier U2, therefore, the output end of the second amplifier U2 outputs a low level, the optical coupler side of the optical coupler-bidirectional thyristor U3 is conducted, the bidirectional thyristor is conducted, a voltage doubling circuit is started, and the input alternating current supplies power to a load after voltage doubling. When the alternating current of less than 140V is connected, the voltage of the negative input end of the first amplifier U1 is lower than the voltage of the positive input end of the first amplifier U1, the output end of the first amplifier U1 outputs high level, at this time, the third capacitor C3 is in a charging state, when the voltage of the two ends of the third capacitor C3 slowly rises to about VCC power supply voltage, and simultaneously the voltage of the negative input end of the second amplifier U2 also gradually rises, when the voltage of the negative input end of the second amplifier U2 is higher than the voltage of the positive input end of the second amplifier U2, the amplifier U2 outputs low level; therefore, the voltage-multiplying circuit is started by charging the third capacitor C3, and voltage-multiplying starting delay control is realized.
When the alternating current is cut off instantaneously in the circuit, the fourth triode Q4 is turned on immediately, and the voltage across the third capacitor C3 is discharged through the second diode D2 and the fourteenth resistor R14. Therefore, when the alternating voltage is electrified again, the time delay voltage-doubling circuit can be started by charging the third capacitor C3 all the time.
As above, while the invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited thereto. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. The utility model provides a commercial power automatic identification voltage doubling control circuit which characterized in that: the alternating current voltage value detection module is used for detecting whether alternating current is used for inputting, if alternating current is input, the alternating current voltage value detection module compares the input alternating current with reference voltage, and outputs a comparison result through high and low levels; the alternating voltage value detection module comprises a tenth resistor R10, one end of a tenth resistor R10 is an alternating current zero line input end, and the other end of a tenth resistor R10 is respectively connected with one end of an eleventh resistor R11, the cathode of a third diode D3 and the cathode input end of a first amplifier U1; one end of a ninth resistor R9 is connected with a power VCC, and the other end of the ninth resistor R9 is respectively connected with the anode input end of the first amplifier U1 and the cathode of the zener diode D4; the other end of the eleventh resistor R11, the anode of the third diode D3 and the anode of the zener diode D4 are grounded; the reference level of the voltage stabilizing diode D4 is respectively connected with the anode input end of the first amplifier U1, one end of the second capacitor C2 and the anode input end of the second amplifier U2; one end of a twelfth resistor R12 is connected with the power supply VCC, and the other end of the twelfth resistor R12 is connected with one end of a thirteenth resistor R13; the other end of the thirteenth resistor R13 is respectively connected with the output end of the first amplifier U1, one end of the third capacitor C3 and the negative input end of the second amplifier U2; the other end of the second capacitor C2 and the other end of the third capacitor C3 are both grounded; the output of the second amplifier U2 is a signal output.
2. The commercial power automatic identification voltage-doubling control circuit according to claim 1, characterized in that: the alternating current signal detection module comprises a first resistor R1, one end of a first resistor R1 is an alternating current live wire input end, the other end of the first resistor R1 is respectively connected with the cathode of a first diode D1, one end of a second resistor R2 and the base of a first triode Q1, and the anode of the first diode D1, the other end of the second resistor R2 and the emitter of the first triode Q1 are all grounded; a collector of the first triode Q1 is connected with one end of a third resistor R3, the other end of the third resistor R3 is respectively connected with a base of the second triode Q2 and one end of a fourth resistor R4, and the other end of the fourth resistor R4 is respectively connected with an emitter of the second triode Q2, one end of a seventh resistor R7, one end of an eighth resistor R8 and a power supply VCC; a collector of the second triode Q2 is respectively connected with one end of the first capacitor C1 and one end of the fifth resistor R5, and the other end of the fifth resistor R5 is respectively connected with a base of the third triode Q3 and one end of the sixth resistor R6; the other end of the first capacitor C1, the other end of the sixth resistor R6 and the emitter of the third triode Q3 are all grounded; the collector of the third triode Q3 is respectively connected with the base of the fourth triode Q4 and the other end of the seventh resistor R7; a collector of the fourth triode Q4 is connected to the other end of the eighth resistor and the cathode of the second diode D2, respectively; an anode of the second diode D2 is connected to one end of the third capacitor C3 through a fourteenth resistor R14.
3. The commercial power automatic identification voltage-doubling control circuit according to claim 1, characterized in that: the first amplifier U1 and the second amplifier U2 employ a dual voltage comparator LM 393.
4. The commercial power automatic identification voltage-doubling control circuit according to claim 1, characterized in that: the zener diode D4 employs TL 431.
5. The utility model provides a commercial power automatic identification voltage doubling control system which characterized in that: the voltage-multiplying circuit is started, and alternating current supplies power to a load through the voltage-multiplying circuit; when the optocoupler-bidirectional thyristor is disconnected, the alternating current directly supplies power to the load; the commercial power automatic identification voltage-doubling control circuit comprises an alternating current signal detection module and an alternating current voltage value detection module, wherein the alternating current signal detection module is used for detecting whether alternating current is used for inputting, if alternating current is input, the alternating current voltage value detection module compares the input alternating current with a reference voltage, and a comparison result is output through high and low levels; the alternating voltage value detection module comprises a tenth resistor R10, one end of a tenth resistor R10 is an alternating current zero line input end, and the other end of a tenth resistor R10 is respectively connected with one end of an eleventh resistor R11, the cathode of a third diode D3 and the cathode input end of a first amplifier U1; one end of a ninth resistor R9 is connected with a power VCC, and the other end of the ninth resistor R9 is respectively connected with the anode input end of the first amplifier U1 and the cathode of the zener diode D4; the other end of the eleventh resistor R11, the anode of the third diode D3 and the anode of the zener diode D4 are grounded; the reference level of the voltage stabilizing diode D4 is respectively connected with the anode input end of the first amplifier U1, one end of the second capacitor C2 and the anode input end of the second amplifier U2; one end of a twelfth resistor R12 is connected with the power supply VCC, and the other end of the twelfth resistor R12 is connected with one end of a thirteenth resistor R13; the other end of the thirteenth resistor R13 is respectively connected with the output end of the first amplifier U1, one end of the third capacitor C3 and the negative input end of the second amplifier U2; the other end of the second capacitor C2 and the other end of the third capacitor C3 are both grounded; the output of the second amplifier U2 is a signal output.
6. The mains supply automatic identification voltage-doubling control system according to claim 5, wherein: the alternating current signal detection module comprises a first resistor R1, one end of a first resistor R1 is an alternating current live wire input end, the other end of the first resistor R1 is respectively connected with the cathode of a first diode D1, one end of a second resistor R2 and the base of a first triode Q1, and the anode of the first diode D1, the other end of the second resistor R2 and the emitter of the first triode Q1 are all grounded; a collector of the first triode Q1 is connected with one end of a third resistor R3, the other end of the third resistor R3 is respectively connected with a base of the second triode Q2 and one end of a fourth resistor R4, and the other end of the fourth resistor R4 is respectively connected with an emitter of the second triode Q2, one end of a seventh resistor R7, one end of an eighth resistor R8 and a power supply VCC; a collector of the second triode Q2 is respectively connected with one end of the first capacitor C1 and one end of the fifth resistor R5, and the other end of the fifth resistor R5 is respectively connected with a base of the third triode Q3 and one end of the sixth resistor R6; the other end of the first capacitor C1, the other end of the sixth resistor R6 and the emitter of the third triode Q3 are all grounded; the collector of the third triode Q3 is respectively connected with the base of the fourth triode Q4 and the other end of the seventh resistor R7; a collector of the fourth triode Q4 is connected to the other end of the eighth resistor and the cathode of the second diode D2, respectively; an anode of the second diode D2 is connected to one end of the third capacitor C3 through a fourteenth resistor R14.
7. The mains supply automatic identification voltage-doubling control system according to claim 5, wherein: the first amplifier U1 and the second amplifier U2 employ a dual voltage comparator LM 393.
8. The mains supply automatic identification voltage-doubling control system according to claim 5, wherein: the zener diode D4 employs TL 431.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023297573.5U CN214506875U (en) | 2020-12-31 | 2020-12-31 | Commercial power automatic identification voltage-multiplying control circuit and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023297573.5U CN214506875U (en) | 2020-12-31 | 2020-12-31 | Commercial power automatic identification voltage-multiplying control circuit and system |
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| Publication Number | Publication Date |
|---|---|
| CN214506875U true CN214506875U (en) | 2021-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023297573.5U Active CN214506875U (en) | 2020-12-31 | 2020-12-31 | Commercial power automatic identification voltage-multiplying control circuit and system |
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| CN (1) | CN214506875U (en) |
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2020
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Address after: 211100 No.8 Kangping street, Jiangning Economic and Technological Development Zone, Nanjing, Jiangsu Province Patentee after: Hansang (Nanjing) Technology Co.,Ltd. Address before: 211100 No.8 Kangping street, Jiangning Economic and Technological Development Zone, Nanjing, Jiangsu Province Patentee before: HANSONG (NANJING) TECHNOLOGY CO.,LTD. |
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