CN112198919A - Circuit for controlling electromagnetic valve by self-excited oscillation voltage doubling and constant current and gas stove using same - Google Patents
Circuit for controlling electromagnetic valve by self-excited oscillation voltage doubling and constant current and gas stove using same Download PDFInfo
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- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
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Abstract
The invention discloses a circuit of a self-oscillation voltage-multiplying and constant-current control electromagnetic valve and a gas stove using the same, wherein the circuit of the self-oscillation voltage-multiplying and constant-current control electromagnetic valve comprises a self-oscillation module for generating a PWM (pulse width modulation) signal, a full-wave rectification module for outputting a voltage-multiplying driving voltage, and a negative feedback amplification module for outputting a voltage-multiplying driving voltage and a negative feedback constant current to control the electromagnetic valve. According to the circuit for controlling the electromagnetic valve by the self-excited oscillation voltage doubling and the constant current, firstly, a PWM signal is generated by a self-excited oscillation module, then, a voltage doubling driving voltage is output by a full-wave rectification module according to the PWM signal of the self-excited oscillation module, and finally, the electromagnetic valve is controlled by a negative feedback amplification module according to the negative feedback constant current output of the voltage doubling driving voltage of the full-wave rectification module, so that the electromagnetic valve is stably output by adopting a self-excited oscillation voltage doubling and constant current control mode, a switching power supply chip is abandoned for control, peripheral components are reduced, the hardware cost in the design process is reduced, and further, the stable gas injection.
Description
Technical Field
The invention belongs to the technical field of electromagnetic valves, and particularly relates to a circuit for controlling an electromagnetic valve by self-oscillation voltage doubling and constant current and a gas stove using the circuit.
Background
In the market, a 'Boost' plus a switching power supply chip TDA4863 in a switching power supply is generally adopted as a booster circuit for an electromagnetic valve driving circuit.
However, the conventional solenoid valve driving circuit has the disadvantages of high hardware cost, requirement of a dedicated chip, more resource waste of peripheral elements and the like. In the past, many research and development personnel or enterprises neglect innovation and improvement of the part of application due to ink conservation and technical improvement limitation, and objective phenomena such as low product reliability, high development process cost, reduced brand quality and the like are directly caused.
Disclosure of Invention
In order to solve the problems, the invention provides a circuit for controlling the electromagnetic valve by self-excited oscillation voltage doubling and constant current, which abandons the control of a switching power supply chip, reduces peripheral components and lowers the hardware cost in the design process.
Another object of the present invention is to provide a gas range.
The technical scheme adopted by the invention is as follows:
a circuit of a self-excited oscillation voltage-multiplying and constant-current control electromagnetic valve comprises a self-excited oscillation module, a full-wave rectification module and a negative feedback amplification module, wherein the self-excited oscillation module is electrically connected with the full-wave rectification module, the full-wave rectification module is electrically connected with the negative feedback amplification module, the self-excited oscillation module is used for generating PWM signals, the full-wave rectification module is used for outputting voltage-multiplying driving voltages according to the PWM signals generated by the self-excited oscillation module, and the negative feedback amplification module is used for outputting the control electromagnetic valve according to the negative feedback constant-current of the voltage-multiplying driving.
Preferably, the self-oscillation module comprises a first triode unit, a second triode unit and a transformer unit, wherein the first triode unit and the second triode unit are both electrically connected with the transformer unit, a first power supply conducts the first triode unit, and then the second triode unit is charged or discharged to form a PWM signal through the change of the current directions of the first triode unit and the transformer unit.
Preferably, the first triode unit comprises a first triode Q1, a first resistor R1 and a second resistor R2, the second triode unit comprises a second triode Q2, a first capacitor C1 and a third resistor R3, the transformer unit comprises a transformer T1, a base of the first triode Q1 is connected in parallel with one end of the first resistor R1 and one end of the second resistor R2, the first power supply is connected in parallel with the other end of the second resistor R2, an emitter of the first triode Q1 and a first pin of the transformer T1, and a second pin of the transformer T1 is connected with a collector of the first triode Q1; a fourth pin of the transformer T1 is connected to a collector of a second triode Q2, a base of the second triode Q2 is connected in parallel to one end of a third resistor R3 and one end of a first capacitor C1, the other end of the third resistor R3 is connected to a third pin of the transformer T1, and an emitter of the second triode Q2 and the other end of the first capacitor C1 are both grounded.
Preferably, the full-wave rectification module includes a fifth diode D5, a sixth diode D6, a seventh diode D7 and an eighth diode D8, an anode of the fifth diode D5 is connected in parallel with a fifth pin of the transformer T1 and a cathode of the sixth diode D6, a cathode of the fifth diode D5 is connected in parallel with a cathode of the seventh diode D7, one end of a third capacitor C3 and a voltage output port, an anode of the seventh diode D7 is connected in parallel with one end of a second capacitor C2, the other end of the third capacitor C3, a cathode of the eighth diode D8 and a seventh pin of the transformer T1, and an anode of the sixth diode D6, an anode of the eighth diode D8 and the other end of the second capacitor C2 are all grounded.
Preferably, the negative feedback amplifying module includes an operational amplifier L1 and a third transistor Q3, a third pin of the operational amplifier L1 is connected in parallel with one end of a fourth resistor R4 and one end of a fifth resistor R5, an eighth pin of the operational amplifier L1 is connected in parallel with the other end of a fifth resistor R5 and one end of a solenoid valve B1, a first pin of the operational amplifier L1 is connected in parallel with one end of a third capacitor C3 and one end of a sixth resistor R6, the other end of the third capacitor C3 is connected in series with a seventh resistor R7 and then connected in parallel with a second pin of the operational amplifier L1, one end of a fourth capacitor C4 and one end of an eighth resistor R8, the other end of the sixth resistor R6 is connected to a base of a third transistor Q3, a collector of the third transistor Q3 is connected to the other end of a solenoid valve B1, an emitter of the third transistor Q3 is connected in parallel with the other end of the eighth resistor R8 and one end of the ninth resistor R9, the eighth pin of the operational amplifier L1, the common connection end of the fifth resistor R5 and the solenoid valve B1 are connected to the voltage output port of the full-wave rectification module, and the other end of the fourth resistor R4, the other end of the fourth capacitor C4, the other end of the ninth resistor R9, and the fourth pin of the operational amplifier L1 are all grounded.
Preferably, the voltage of the first power supply is 3V.
Preferably, the seventh diode D7 and the eighth diode D8 are both zener diodes.
Preferably, the first transistor Q1 is a PNP transistor, and the second transistor Q2 is an NPN transistor.
Preferably, the third transistor Q3 is an NPN transistor.
The other technical scheme of the invention is realized as follows:
a gas stove comprises the self-oscillation voltage-multiplying and constant-current control electromagnetic valve circuit.
Compared with the prior art, the circuit for controlling the electromagnetic valve by the self-excited oscillation voltage doubling and the constant current firstly generates a PWM signal by the self-excited oscillation module, then outputs the voltage doubling driving voltage according to the PWM signal of the self-excited oscillation module through the full-wave rectification module, and finally controls the electromagnetic valve by the negative feedback constant current output according to the voltage doubling driving voltage of the full-wave rectification module through the negative feedback amplification module, so that the stable output of the electromagnetic valve is realized by adopting a self-excited oscillation voltage doubling and constant current control mode, the control of a switching power supply chip is abandoned, peripheral components are reduced, the hardware cost in the design process is reduced, and the stable injection of fuel gas of a gas. Meanwhile, the development efficiency of developers is improved, the development period is shortened, and a great foundation is laid for improving the reliability of products.
Drawings
Fig. 1 is a circuit diagram of a circuit for controlling a solenoid valve by self-oscillation voltage doubling and constant current according to embodiment 1 of the present invention.
Description of the reference numerals
The circuit comprises a 1-self-oscillation module, 11-a first triode unit, 12-a second triode unit, 13-a transformer unit, a 2-full-wave rectification module and a 3-negative feedback amplification module.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The embodiment of the invention provides a circuit for controlling an electromagnetic valve by self-excited oscillation voltage doubling and constant current, which comprises a self-excited oscillation module 1, a full-wave rectification module 2 and a negative feedback amplification module 3, wherein the self-excited oscillation module 1 is electrically connected with the full-wave rectification module 2, the full-wave rectification module 2 is electrically connected with the negative feedback amplification module 3, the self-excited oscillation module 1 is used for generating a PWM (pulse width modulation) signal, the full-wave rectification module 2 is used for outputting voltage doubling driving voltage according to the PWM signal generated by the self-excited oscillation module 1, and the negative feedback amplification module 3 is used for outputting the control electromagnetic valve by negative feedback constant current according to the voltage doubling driving voltage of the.
Therefore, firstly, the self-oscillation module 1 generates a PWM signal, then the full-wave rectification module 2 outputs a voltage-multiplying driving voltage according to the PWM signal of the self-oscillation module 1, and finally the negative feedback amplification module 3 controls the electromagnetic valve according to the negative feedback constant current output of the voltage-multiplying driving voltage of the full-wave rectification module 2, so that the electromagnetic valve is stably output by adopting a self-oscillation voltage-multiplying and constant current control mode, the control of a switching power supply chip is abandoned, peripheral components are reduced, the hardware cost in the design process is reduced, and further the stable gas injection of the gas stove is realized.
PWM signal, known as Pulse Width Modulation, is an abbreviation of Pulse Width Modulation, and is obtained by modulating the Width of a series of pulses to obtain a desired waveform (including shape and amplitude), and digitally encoding the level of an analog signal, that is, adjusting the change of a duty ratio to adjust the change of signal, energy, and the like, where the duty ratio refers to the percentage of time that a signal is at a high level in a period of the entire signal period, for example, the duty ratio of a square wave is 50%.
The self-oscillation module 1 comprises a first triode unit 11, a second triode unit 12 and a transformer unit 13, wherein the first triode unit 11 and the second triode unit 12 are electrically connected with the transformer unit 13, a first power supply enables the first triode unit 11 to be conducted, and then the second triode unit 12 is charged or discharged to form a PWM signal through the change of the current directions of the first triode unit 11 and the transformer unit 13.
In this way, the first transistor unit 11 is turned on by the first power supply, and then the second transistor unit 12 is continuously charged or discharged by the turning on of the first transistor unit 11 and the change of the current direction of the transformer unit 13, thereby forming a PWM signal output.
The first triode unit 11 comprises a first triode Q1, a first resistor R1 and a second resistor R2, the second triode unit 12 comprises a second triode Q2, a first capacitor C1 and a third resistor R3, the transformer unit 13 comprises a transformer T1, the base of the first triode Q1 is connected in parallel with one end of the first resistor R1 and one end of the second resistor R2, the first power supply is connected in parallel with the other end of the second resistor R2, the emitter of the first triode Q1 and the first pin of the transformer T1, and the second pin of the transformer T1 is connected with the collector of the first triode Q1; a fourth pin of the transformer T1 is connected to a collector of a second triode Q2, a base of the second triode Q2 is connected in parallel to one end of a third resistor R3 and one end of a first capacitor C1, the other end of the third resistor R3 is connected to a third pin of the transformer T1, and an emitter of the second triode Q2 and the other end of the first capacitor C1 are both grounded. The other end of the first resistor R1 is connected to a converter voltage Vboost _ c, the voltage of the first power supply is 3V, the first triode Q1 is a PNP triode, and the second triode Q2 is an NPN triode.
Thus, the method specifically comprises the following steps:
s11, a steady-state bias working point of a first triode Q1 is formed by a first resistor R1 and a second resistor R2, when a first power supply is powered by 3V, the first triode Q1 is conducted to charge a first capacitor C1 through a transformer T1(2-3) and a third resistor R3, and the voltage of the transformer T1(2-3) is positive at the moment and negative at the moment; when the first capacitor C1 is charged to reach the conducting voltage Vbe _ Q2 of the second triode Q2 to be 0.7V, the second triode Q2 is in saturated conduction, the voltage of the transformer T1(1-4) is positive, negative, and positive, the voltage of the transformer T1(2-3) is coupled by the transformer at this time, so that positive feedback is formed to increase the charging of the first capacitor C1, the voltage of the first capacitor C1 rises again sharply, and the process is a forward conduction process;
s12, when Ibe _ Q2 rises sharply, the current Ice _ Q2 of the second triode Q2 rises sharply synchronously and enters a saturated conducting state instantly, the transformer T1(1-4) is saturated by the core of the sharp rise of Ice _ Q2, and when the transformer is saturated magnetically, the current of T1(1-4) does not change any more and the voltage of the transformer is 0 instantly. Since the transformer current cannot change abruptly, T1(1-4) will generate lower positive and upper negative compensation voltage/current. The voltage is instantaneously more positive, negative and positive through the transformer coupling relation T1(2-3), positive is that the polarity change of the voltage causes the Ibe _ Q2 to sharply decrease (the first capacitor C1 also synchronously discharges to the second triode Q2), at this time, the current Ice _ Q2 of the second triode Q2 also sharply decreases synchronously until the second triode Q2 is cut off, and the process is a reverse cut-off process;
s13, and circulating S11-S12 in this way, thereby realizing the storage and release of T1(1-4) self-oscillation PWM energy.
The full-wave rectification module 2 comprises a fifth diode D5, a sixth diode D6, a seventh diode D7 and an eighth diode D8, wherein the anode of the fifth diode D5 is connected in parallel with the fifth pin of the transformer T1 and the cathode of the sixth diode D6, the cathode of the fifth diode D5 is connected in parallel with the cathode of the seventh diode D7, one end of a third capacitor C3 and the voltage output port, the anode of the seventh diode D7 is connected in parallel with one end of a second capacitor C2, the other end of a third capacitor C3, the cathode of an eighth diode D8 and the seventh pin of the transformer T1, and the anode of the sixth diode D6, the anode of the eighth diode D8 and the other end of the second capacitor C2 are all grounded. Wherein the seventh diode D7 and the eighth diode D8 are both zener diodes.
Thus, the method specifically comprises the following steps:
s21, when the current is circulated to S11, the second transistor Q2 is in saturation conduction, Vce _ Q2 is 0V, the power supply 3V excites the transformer T1(1-4) to store energy, at this time, the voltage is positive, negative, and positive, negative according to the voltage of the transformer T1(1-4), the voltage is positive, negative, and negative according to the homonymy end coupling relationship T1(5-7) between the transformer T1(1-4) and the transformer T1(5-7), the voltage is positive, negative, and positive, negative, the energy of the power supply 3V charges the third capacitor C3 through the transformer T1(5-7) and the fifth diode D5, and the output voltage Vc3 is 6V due to the action of the regulator (seventh diode D7, the regulated voltage value of which is 6V), at this time, the sixth diode D6 is reversely turned off;
s22, when the cycle is to S12, since the second transistor Q2 is turned off, the voltage of the transformer T1(1-4) is negative, positive, negative, and according to the same-name end coupling relationship between the transformer T1(1-4) and the transformer T1(5-7), the voltage of the transformer T1(5-7) is also negative, positive, and negative, the energy of the power supply 3V is charged to the second capacitor C2 through the T1(5-7) and the sixth diode D6, and due to the effect of the regulator tube (i.e., the eighth diode D8, the regulated voltage value of which is 6V), the output voltage Vc2 is 6V, and at this time, the fifth diode D5 is turned off in the reverse direction;
and S23, circulating S21-S22, realizing the full-wave rectification voltage-doubling output VOUT (Vc 3+ Vc 2) of the transformer T1(1-4) to 12V, and providing a working power supply for the direct-current electromagnetic valve of the gas stove.
The negative feedback amplifying module 3 comprises an operational amplifier L1 and a third triode Q3, a third pin of the operational amplifier L1 is connected in parallel with one end of a fourth resistor R4 and one end of a fifth resistor R5, an eighth pin of the operational amplifier L1 is connected in parallel with the other end of a fifth resistor R5 and one end of a solenoid valve B1, a first pin of the operational amplifier L1 is connected in parallel with one end of a third capacitor C3 and one end of a sixth resistor R6, the other end of the third capacitor C3 is connected in series with a seventh resistor R7 and then connected in parallel with a second pin of the operational amplifier L1, one end of a fourth capacitor C4 and one end of an eighth resistor R8, the other end of the sixth resistor R6 is connected with a base of the third triode Q3, a collector of the third triode Q3 is connected with the other end of a solenoid valve B1, an emitter of the third triode Q3 is connected in parallel with the other end of the eighth resistor R8 and one end of the ninth resistor R9, the eighth pin of the operational amplifier L1, the common connection end of the fifth resistor R5 and the solenoid valve B1 are connected to the voltage output port of the full-wave rectification module 2, and the other end of the fourth resistor R4, the other end of the fourth capacitor C4, the other end of the ninth resistor R9, and the fourth pin of the operational amplifier L1 are all grounded. The third transistor Q3 is an NPN transistor.
In this way, a negative feedback variable is introduced by sampling the current of the solenoid valve B1, the base current of the third transistor Q3 is driven through the output end of the operational amplifier L1 (model LM2904), and the current of the solenoid valve B1 is stably controlled by controlling the collector current of the third transistor Q3 (I _ B1 is IC _ Q3). The method comprises the following steps:
s31, a resistor divider is formed by the fourth resistor R4 and the fifth resistor R5, and the voltage value of the input of the non-inverting terminal of IC2A of the operational amplifier L1 (i.e. the eighth pin of the operational amplifier) is: v + _ IC2A ═ V VOUT R4)/(R5+ R4;
s32, known by the operational amplifier virtual short break principle, V + _ IC2A ≈ V- _ IC2A ≈ VR9 (actually, V + _ IC2A is greater than V- _ IC2A by millivolt or microvolt voltage), and then according to the current calculation formula: i _ R9 ═ VR9/R9, the analytical circuit knows IE _ Q3 ≈ IC _ Q3 ≈ I _ R9 ≈ I _ B1, so the current I _ B1 of the solenoid valve is established;
s33, realizing negative feedback constant current output through the following change control process, and assuming that VOUT voltage fluctuation rises:
according to the circuit for controlling the electromagnetic valve by the self-excited oscillation voltage doubling and the constant current, firstly, a PWM signal is generated by a self-excited oscillation module, then, a voltage doubling driving voltage is output by a full-wave rectification module according to the PWM signal of the self-excited oscillation module, and finally, the electromagnetic valve is controlled by a negative feedback amplification module according to the negative feedback constant current output of the voltage doubling driving voltage of the full-wave rectification module, so that the stable output of the electromagnetic valve is realized in a self-excited oscillation voltage doubling and constant current control mode, the control of a switching power supply chip is abandoned, peripheral components are reduced, the hardware cost in the design process is reduced, the stable injection of fuel gas of a gas stove is further realized, meanwhile, the development efficiency of developers is improved.
Example 2
The embodiment 2 of the invention provides a gas stove which comprises the circuit for controlling the electromagnetic valve through self-oscillation voltage doubling and constant current.
According to the gas stove, firstly, the self-excited oscillation module generates a PWM signal, then the full-wave rectification module outputs the voltage-multiplying driving voltage according to the PWM signal of the self-excited oscillation module, and finally the negative feedback amplification module controls the electromagnetic valve according to the negative feedback constant current output of the voltage-multiplying driving voltage of the full-wave rectification module, so that the stable output of the electromagnetic valve is realized in a self-excited oscillation voltage-multiplying and constant current control mode, the control of a switching power supply chip is abandoned, peripheral components are reduced, the hardware cost in the design process is reduced, and the stable gas injection of the gas stove is realized.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The circuit for controlling the electromagnetic valve through self-excited oscillation voltage doubling and constant current is characterized by comprising a self-excited oscillation module (1), a full-wave rectification module (2) and a negative feedback amplification module (3), wherein the self-excited oscillation module (1) is electrically connected with the full-wave rectification module (2), the full-wave rectification module (2) is electrically connected with the negative feedback amplification module (3), the self-excited oscillation module (1) is used for generating PWM signals, the full-wave rectification module (2) is used for outputting voltage doubling driving voltage according to the PWM signals generated by the self-excited oscillation module (1), and the negative feedback amplification module (3) is used for outputting the control electromagnetic valve through negative feedback constant current according to the voltage doubling driving voltage of the full-wave rectification module (2).
2. The circuit of the self-oscillation voltage-multiplying and constant-current control electromagnetic valve according to claim 1, wherein the self-oscillation module (1) comprises a first triode unit (11), a second triode unit (12) and a transformer unit (13), the first triode unit (11) and the second triode unit (12) are electrically connected with the transformer unit (13), a first power supply conducts the first triode unit (11), and then the second triode unit (12) is charged or discharged to form a PWM signal through the change of the current directions of the first triode unit (11) and the transformer unit (13).
3. A self-oscillating voltage-multiplying and constant-current control solenoid valve circuit according to claim 2, wherein the first triode unit (11) comprises a first triode Q1, a first resistor R1 and a second resistor R2, the second triode unit (12) comprises a second triode Q2, a first capacitor C1 and a third resistor R3, the transformer unit (13) comprises a transformer T1, a base of the first triode Q1 is connected in parallel with one end of the first resistor R1 and one end of the second resistor R2, the first power supply is connected in parallel with the other end of the second resistor R2, an emitter of the first triode Q1 and a first pin of the transformer T1, and a second pin of the transformer T1 is connected with a collector of the first triode Q1; a fourth pin of the transformer T1 is connected to a collector of a second triode Q2, a base of the second triode Q2 is connected in parallel to one end of a third resistor R3 and one end of a first capacitor C1, the other end of the third resistor R3 is connected to a third pin of the transformer T1, and an emitter of the second triode Q2 and the other end of the first capacitor C1 are both grounded.
4. A self-oscillating voltage-multiplying and constant-current control solenoid valve circuit according to claim 3, wherein the full-wave rectification module (2) comprises a fifth diode D5, a sixth diode D6, a seventh diode D7 and an eighth diode D8, wherein the anode of the fifth diode D5 is connected in parallel with the fifth pin of the transformer T1 and the cathode of the sixth diode D6, the cathode of the fifth diode D5 is connected in parallel with the cathode of the seventh diode D7, one end of a third capacitor C3 and a voltage output port, the anode of the seventh diode D7 is connected in parallel with one end of a second capacitor C2, the other end of the third capacitor C3, the cathode of the eighth diode D8 and the seventh pin of the transformer T1, and the anode of the sixth diode D6, the anode of the eighth diode D8 and the other end of the second capacitor C2 are all grounded.
5. A self-oscillation voltage-multiplying and constant-current control solenoid valve circuit as claimed in any one of claims 1 to 4, wherein said negative feedback amplifying module (3) comprises an operational amplifier L1 and a third transistor Q3, a third pin of said operational amplifier L1 is connected in parallel with one end of a fourth resistor R4 and one end of a fifth resistor R5, an eighth pin of said operational amplifier L1 is connected in parallel with the other end of a fifth resistor R5 and one end of a solenoid valve B1, a first pin of said operational amplifier L1 is connected in parallel with one end of a third capacitor C3 and one end of a sixth resistor R6, the other end of said third capacitor C3 is connected in series with a seventh resistor R7 and then connected in parallel with a second pin of said operational amplifier L1, one end of a fourth capacitor C4 and one end of an eighth resistor R8, the other end of said sixth resistor R6 is connected with a base of a third transistor Q3, and a collector of said third transistor Q3 is connected with the other end of a solenoid valve B1, an emitter of the third triode Q3 is connected in parallel with the other end of the eighth resistor R8 and one end of the ninth resistor R9, a common connection end of an eighth pin of the operational amplifier L1, the fifth resistor R5 and the solenoid valve B1 is connected to a voltage output port of the full-wave rectification module (2), and the other end of the fourth resistor R4, the other end of the fourth capacitor C4, the other end of the ninth resistor R9 and a fourth pin of the operational amplifier L1 are all grounded.
6. A self-oscillation voltage-multiplying and constant-current control electromagnetic valve circuit as defined in claim 3 or 4, wherein the voltage of the first power supply is 3V.
7. A self-oscillation voltage-multiplying and constant-current control solenoid valve circuit as claimed in claim 4, wherein said seventh diode D7 and eighth diode D8 are both zener diodes.
8. A self-oscillation voltage-multiplying and constant-current control electromagnetic valve circuit as defined in claim 3 or 4, wherein the first transistor Q1 is a PNP transistor, and the second transistor Q2 is an NPN transistor.
9. A self-oscillation voltage-multiplying and constant-current control electromagnetic valve circuit as defined in claim 5, wherein the third transistor Q3 is an NPN transistor.
10. A gas range, characterized in that it comprises a circuit of a self-oscillating voltage-multiplying and constant-current control solenoid valve according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011090279.9A CN112198919A (en) | 2020-10-13 | 2020-10-13 | Circuit for controlling electromagnetic valve by self-excited oscillation voltage doubling and constant current and gas stove using same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011090279.9A CN112198919A (en) | 2020-10-13 | 2020-10-13 | Circuit for controlling electromagnetic valve by self-excited oscillation voltage doubling and constant current and gas stove using same |
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| CN112198919A true CN112198919A (en) | 2021-01-08 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980034075A (en) * | 1996-11-05 | 1998-08-05 | 정장호 | Output Distortion Elimination Device of Diode Ring Mixer |
| US20050007034A1 (en) * | 2003-07-11 | 2005-01-13 | Origin Electric Company, Limited | Discharge power supply apparatus |
| KR100706311B1 (en) * | 2005-10-26 | 2007-04-13 | 한국광기술원 | Driving circuit for light emitting diode by pulse width modulation control with full-wave rectifier |
| CN103187871A (en) * | 2011-12-30 | 2013-07-03 | 北京谊安医疗系统股份有限公司 | Power supply control device of magnetic valve flow in anaesthesia machine and method thereof |
| CN106402458A (en) * | 2016-10-31 | 2017-02-15 | 北京航天动力研究所 | Energy-saving current adjustable chopper drive circuit |
| CN111520742A (en) * | 2020-04-30 | 2020-08-11 | 华帝股份有限公司 | Pulse ignition compensation circuit and control method thereof |
| CN213659286U (en) * | 2020-10-13 | 2021-07-09 | 华帝股份有限公司 | Circuit for controlling electromagnetic valve by self-excited oscillation voltage doubling and constant current and gas stove using same |
-
2020
- 2020-10-13 CN CN202011090279.9A patent/CN112198919A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980034075A (en) * | 1996-11-05 | 1998-08-05 | 정장호 | Output Distortion Elimination Device of Diode Ring Mixer |
| US20050007034A1 (en) * | 2003-07-11 | 2005-01-13 | Origin Electric Company, Limited | Discharge power supply apparatus |
| KR100706311B1 (en) * | 2005-10-26 | 2007-04-13 | 한국광기술원 | Driving circuit for light emitting diode by pulse width modulation control with full-wave rectifier |
| CN103187871A (en) * | 2011-12-30 | 2013-07-03 | 北京谊安医疗系统股份有限公司 | Power supply control device of magnetic valve flow in anaesthesia machine and method thereof |
| CN106402458A (en) * | 2016-10-31 | 2017-02-15 | 北京航天动力研究所 | Energy-saving current adjustable chopper drive circuit |
| CN111520742A (en) * | 2020-04-30 | 2020-08-11 | 华帝股份有限公司 | Pulse ignition compensation circuit and control method thereof |
| CN213659286U (en) * | 2020-10-13 | 2021-07-09 | 华帝股份有限公司 | Circuit for controlling electromagnetic valve by self-excited oscillation voltage doubling and constant current and gas stove using same |
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