Pulser and gas stove

Abstract

The application relates to the technical field of pulse generators, and particularly discloses a pulse generator and a gas stove, wherein the pulse generator comprises a single-chip microcomputer and at least one suction valve circuit structure; the suction valve circuit structure is electrically connected with the single-chip microcomputer, is used for receiving a suction valve signal sent by the single-chip microcomputer to generate a reverse voltage and promote the opening of an electromagnetic valve, and is used for receiving a closing valve signal sent by the single-chip microcomputer to generate a forward voltage and promote the closing of the electromagnetic valve; and the single-chip microcomputer is used for sending the closing valve signal or the suction valve signal to the suction valve circuit structure. Through the above structure, the suction valve function and the closing valve function are integrated in one circuit structure, so that the circuit structure can be simplified, and the hardware cost can be reduced.

Description

Technical Field

[0001] This invention relates to the field of pulse generator technology, and in particular to a pulse generator and a gas stove using the pulse generator. Background Technology

[0002] The pulse igniter is the core control component of a household gas stove, mainly realizing three functions: ignition, valve intake (i.e., opening the solenoid valve), and valve shut-off (i.e., closing the solenoid valve). In existing pulse igniters, the valve intake circuit and valve shut-off circuit are independent of each other, requiring additional valve shut-off drive chips and negative pressure conversion chips. This results in a large number of discrete components and complex circuit wiring, which not only increases hardware costs but also makes it prone to failures such as poor contact and component aging. Summary of the Invention

[0003] The present invention aims to solve the technical problem that the suction valve circuit and the closing valve circuit of the pulse generator are set up separately in the prior art, resulting in a complex circuit structure. The present invention provides a pulse generator that combines the functions of suction valve and closing valve circuit, and a gas stove having the pulse generator.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solutions:

[0005] The pulse generator of the present invention includes a microcontroller and at least one latch-up / shutdown valve circuit structure;

[0006] The suction and closing valve circuit structure is electrically connected to the microcontroller and is used to receive the suction valve signal sent by the microcontroller to generate a reverse voltage and cause the solenoid valve to open, and to receive the closing valve signal sent by the microcontroller to generate a positive voltage and cause the solenoid valve to close.

[0007] The microcontroller is used to send a valve-closing signal or a valve-suction signal to the valve-suction circuit structure.

[0008] The pulse generator described in this invention controls the solenoid valve's suction and closing functions through a combination of a microcontroller and a suction / closing valve circuit structure. By integrating the suction and closing functions into a single circuit structure, there is no need to add an additional valve closing driver chip and negative pressure conversion chip, which simplifies the circuit structure, reduces hardware costs, and avoids component contact problems and aging issues that occur when the circuit structure is complex.

[0009] Furthermore, the suction and shut-off valve circuit structure includes a first chip, the first chip includes a first ground pin, the first ground pin is grounded through a shunt circuit; the shunt circuit includes at least one shunt resistor.

[0010] Furthermore, the first chip also includes a suction valve signal input pin, a valve closing signal input pin, a first output pin, a second output pin, and a first power connection pin. The microcontroller includes a suction valve signal output pin and a valve closing signal output pin. The suction valve signal input pin is electrically connected to the suction valve signal output pin, and the valve closing signal input pin is electrically connected to the valve closing signal output pin. The first power connection pin is electrically connected to the power module. The second output pin is electrically connected to the switch and solenoid valve connection circuit structure. The switch and solenoid valve connection circuit structure is used to send the positive voltage or the reverse voltage to the solenoid valve. The first output pin is electrically connected to the negative terminal of the solenoid valve.

[0011] Furthermore, the shunt circuit includes multiple shunt resistors, which form a parallel circuit structure. One end of the parallel circuit structure is electrically connected to the first grounding pin, and the other end is grounded.

[0012] Alternatively, a fourth resistor for current limiting is electrically connected between the suction valve signal input pin and the suction valve signal output pin;

[0013] Alternatively, a fifth resistor for current limiting can be connected between the valve closing signal input pin and the valve closing signal output pin;

[0014] Alternatively, a first capacitor is electrically connected between the first output pin and the second output pin, with one end of the first capacitor connected to analog ground;

[0015] Alternatively, the shut-off valve circuit structure may further include a second capacitor for filtering, with one end of the second capacitor electrically connected between the first power connection pin and the power module, and the other end grounded.

[0016] Furthermore, the switch and solenoid valve connection circuit structure includes a first connector, which includes a solenoid valve positive connection pin and a second power connection pin. The solenoid valve positive connection pin is electrically connected to the second output pin of the first chip and is also electrically connected to the positive terminal of the solenoid valve. The second power connection pin is electrically connected to the power module.

[0017] Furthermore, the pulse generator also includes a boost module, a switching module, and a switch input detection module;

[0018] The boost module is electrically connected to the power module and is used to convert the input voltage into a first preset voltage and output it.

[0019] The switching module has one end connected to the power module and the other end connected to the enable pin of the boost module. The switching module is used to trigger the boost module to start.

[0020] The switch input detection module is connected to the switch module and is used to detect the state of the switch module;

[0021] The microcontroller is electrically connected to the boost module. When the output voltage of the boost module is detected to reach the first preset voltage, the boost module continues to work through the enable pin of the boost module.

[0022] Furthermore, the switching module includes at least one switching branch, one end of which is connected to the enable pin of the boost module, and the other end is connected to the power module; when the switching branch is closed, it can trigger the boost module to start.

[0023] Alternatively, the switch input detection module may employ a level detection circuit, whereby the switch input detection module outputs a high-level signal to the microcontroller when the switch is closed, and outputs a low-level signal to the microcontroller when the switch is open.

[0024] Furthermore, the pulse generator also includes at least one ignition circuit structure, which includes a first transistor, a second transistor, a high-voltage storage capacitor, a first inductor, a second inductor, a third inductor, a fourth inductor, and a fifth inductor. The microcontroller includes an ignition signal output pin. The base of the first transistor is electrically connected to the ignition signal output pin, the emitter of the first transistor is grounded, the collector of the first transistor is electrically connected to one end of the first inductor, the base of the second transistor is electrically connected to the other end of the first inductor, the emitter of the second transistor is electrically connected to the power module, the collector of the second transistor is electrically connected to one end of the second inductor, the third inductor and the second inductor generate an induced electromotive force, one end of the third inductor is electrically connected to one end of the high-voltage storage capacitor, the other end of the third inductor is grounded, the other end of the high-voltage storage capacitor is electrically connected to one end of the fourth inductor, the other end of the fourth inductor is grounded, the fourth inductor and the fifth inductor generate an induced electromotive force, and the fifth inductor is electrically connected to the ignition needle.

[0025] Alternatively, the pulse generator may further include a fourth capacitor, a fifth capacitor, and a sixth capacitor, which are connected in parallel. One end of the parallel circuit is electrically connected to the power supply pin of the microcontroller, and the other end is grounded.

[0026] Furthermore, the ignition circuit structure also includes a first diode and a third capacitor, wherein the first diode and the third capacitor are connected in parallel and connected between the emitter and base of the second transistor;

[0027] Alternatively, the ignition circuit structure may further include a sixth resistor and a seventh resistor. The sixth resistor is electrically connected between the base of the first transistor and the ignition signal output pin of the microcontroller. One end of the seventh resistor is connected between the sixth resistor and the base of the first transistor, and the other end is grounded.

[0028] Alternatively, the ignition circuit structure may further include a second diode and an eighth resistor. One anode of the second diode is electrically connected to the third inductor, and one cathode is electrically connected to the high-voltage storage capacitor. One end of the eighth resistor is electrically connected between the second diode and the high-voltage storage capacitor, and the other end is grounded.

[0029] The gas stove of the present invention includes a panel and at least one rotary switch rotatable relative to the panel, and also includes the aforementioned pulse generator. The rotary switch is electrically connected to the circuit structure connecting the switch and the solenoid valve. Because the gas stove of the present invention has the aforementioned pulse generator, it also possesses all the beneficial technical effects brought by the pulse generator, which will not be elaborated further here. Attached Figure Description

[0030] The above and other objects, features, and advantages of the invention will become clearer through a more detailed description of the preferred embodiments illustrated in the accompanying drawings. The same reference numerals denote the same parts throughout the drawings, and the drawings are not intentionally drawn to scale with actual dimensions; the focus is on illustrating the gist of the invention.

[0031] Figure 1 This is a schematic diagram of the circuit structure of the microcontroller in an embodiment of the present invention.

[0032] Figure 2 The diagram shows the circuit structures of the left suction valve and the right suction valve.

[0033] Figure 3 This is a schematic diagram of the circuit structure connecting the switch and the solenoid valve.

[0034] Figure 4 This is a schematic diagram of the circuit connection structure of the boost module, the switching module, and the switch input detection module.

[0035] Figure 5 The diagram shows the left and right ignition circuit structures.

[0036] Figure 6 This is a schematic diagram of a gas stove.

[0037] Figure 7 A diagram showing the gas stove with the panel and burner removed. Detailed Implementation

[0038] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be given below with reference to the accompanying drawings.

[0039] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to and integrated with the other component, or there may be an intervening component present. The terms "mounted," "one end," "the other end," and similar expressions used in this document are for illustrative purposes only.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0041] This invention specifically provides an embodiment of a pulse generator, including a microcontroller IC1 and at least one suction-closing valve circuit structure. When the gas stove has a single burner, there is only one suction-closing valve circuit structure; when the gas stove has two burners, there are two suction-closing valve circuit structures. Based on the conventional installation direction of the gas stove, these can be divided into a left suction-closing valve circuit structure 100 and a right suction-closing valve circuit structure 200. The left suction-closing valve circuit structure 100 is connected to the left solenoid valve of the left burner, and the right suction-closing valve circuit structure 200 is connected to the right solenoid valve of the right burner. The circuit structure is electrically connected to the microcontroller IC1. It receives the valve-opening signal from the microcontroller IC1 to generate a reverse voltage and cause the solenoid valve to open, and receives the valve-closing signal from the microcontroller IC1 to generate a positive voltage and cause the solenoid valve to close. The positive voltage, in contrast to the reverse voltage, refers to the current flowing through the solenoid valve in a positive direction, and vice versa. The microcontroller IC1 sends either a valve-closing signal or a valve-opening signal to the valve-opening / closing circuit structure. In this embodiment, the pulser, through the cooperation of the microcontroller IC1 and the valve-opening / closing circuit structure, controls the valve-opening and valve-closing of the solenoid valve. This integrates the valve-opening and valve-closing functions into a single circuit structure, eliminating the need for additional valve-closing driver chips and negative voltage conversion chips. This simplifies the circuit structure, reduces hardware costs, and avoids component contact problems and aging issues common in complex circuit structures.

[0042] This embodiment also includes a switch and solenoid valve connection circuit structure, which is electrically connected to the valve opening / closing circuit structure. This circuit structure sends a positive or negative voltage to the solenoid valve. Specifically, the valve opening / closing circuit structure is electrically connected to the microcontroller IC1. It receives the valve opening signal from the microcontroller IC1 to generate a reverse voltage, which, through the switch and solenoid valve connection circuit structure, causes the solenoid valve to open. It also receives the valve closing signal from the microcontroller IC1 to generate a positive voltage, which, through the switch and solenoid valve connection circuit structure, causes the solenoid valve to close. Furthermore, through the cooperation of the microcontroller IC1, the switch and solenoid valve connection circuit structure, and the valve opening / closing circuit structure, the control of the solenoid valve's opening and closing functions is achieved more precisely.

[0043] In the preferred embodiment, see Figure 1 and 2 The suction and shut-off valve circuit structure includes a first chip, which is a motor driver chip, such as the MX113H motor driver chip. The first chip includes a suction valve signal input pin, a shut-off valve signal input pin, a first output pin, a second output pin, a first ground pin, and a first power connection pin. The microcontroller IC1 includes a suction valve signal output pin and a shut-off valve signal output pin. The suction valve signal input pin and the suction valve signal output pin are electrically connected, and the shut-off valve signal input pin and the shut-off valve signal output pin are electrically connected. The first power connection pin is electrically connected to the power module 300, which is typically a dry cell battery with an input voltage range of 1V-3.2V. The second output pin is electrically connected to the switch and solenoid valve connection circuit structure, and the first output pin is electrically connected to the negative terminal of the solenoid valve. The first ground pin is grounded through a shunt circuit. In this embodiment, the gas stove has a dual-burner structure, and therefore has two suction and shut-off valve circuit structures. See [link to relevant documentation]. Figure 2The circuit is divided into a left suction valve circuit structure 100 and a right suction valve circuit structure 200. The left suction valve circuit structure 100 includes a left first chip U2, which includes a left suction valve signal input pin (pin 5 in the figure), a left closing valve signal input pin (pin 6 in the figure), a left first output pin (pin 3 in the figure), a left second output pin (pin 1 in the figure), a left first ground pin (pin 2 in the figure), and a left first power connection pin (pin 4 in the figure). The microcontroller IC1 includes a left suction valve signal output pin XF-Lout (pin 23 in the figure) and a left closing valve signal output pin OFF-DCF-L (pin 15 in the figure). The input pin is electrically connected to the left suction valve signal output pin XF-Lout, the left closing valve signal input pin is electrically connected to the left closing valve signal output pin OFF-DCF-L, the left first power supply connection pin is electrically connected to the power module 300, and the left second output pin is electrically connected to the switch and solenoid valve connection circuit structure. Specifically, the left second output pin is electrically connected to pin DCF-L (pin 3 in the figure) in the switch and solenoid valve connection circuit structure. The left first output pin is electrically connected to the negative terminal of the left solenoid valve, and the left first ground pin is grounded through the left shunt circuit. The right suction valve circuit structure 200 includes the right first chip U3, and the right first chip U3 includes the right suction valve signal input pin. The microcontroller IC1 includes a right suction valve signal input pin (pin 5 in the diagram), a right closing valve signal input pin (pin 6 in the diagram), a right first output pin (pin 3 in the diagram), a right second output pin (pin 1 in the diagram), a right first ground pin (pin 2 in the diagram), and a right first power connection pin (pin 4 in the diagram). The microcontroller IC1 also includes a right suction valve signal output pin XF-Rout (pin 25 in the diagram) and a right closing valve signal output pin OFF-DCF-R. The right suction valve signal input pin is electrically connected to the right suction valve signal output pin XF-Rout, and the right closing valve signal input pin is electrically connected to the right closing valve signal output pin OFF-DCF-R. The right first power connection pin is electrically connected to the power module. 300. The right second output pin is electrically connected to the switch and solenoid valve connection circuit structure. Specifically, the right second output pin is electrically connected to pin DCF-R (pin 5 in the figure) in the switch and solenoid valve connection circuit structure. The right first output pin is electrically connected to the negative terminal of the right solenoid valve, and the right first ground pin is grounded through the right shunt circuit. In this embodiment, the dual-burner gas stove, by setting two independent suction and shut-off valve circuit structures, is connected to different pins of the microcontroller IC1, thereby enabling independent control of either suction and shut-off valve circuit structure. When one circuit is ignited, the other circuit remains in a dormant state, preventing unnecessary power consumption, reducing energy consumption, and extending the life of the dry cell battery.

[0044] In the preferred embodiment, see Figure 2The shunt circuit includes at least one shunt resistor. When the shunt circuit includes multiple shunt resistors, the multiple shunt resistors form a parallel circuit structure. One end of the parallel circuit structure is electrically connected to the first ground pin, and the other end is grounded. By setting the shunt resistors connected between the ground pin of the first chip and ground, the forward and reverse rotation of the control current can be achieved, that is, the so-called positive voltage and negative voltage. This allows for the control of the same solenoid valve's valve opening and closing within the same circuit structure, eliminating the need for additional valve closing drive chips and negative voltage conversion chips. This simplifies the circuit structure, reduces hardware costs, and avoids component contact problems and aging issues common in complex circuit structures. This embodiment specifically provides an implementation using three shunt resistors: a first resistor, a second resistor, and a third resistor. The first, second, and third resistors form a parallel circuit structure, with one end electrically connected to the first ground pin and the other end grounded. See also... Figure 2 For a dual-burner gas stove, the left shunt circuit in the left suction valve circuit structure 100 includes a left first resistor R57, a left second resistor R58, and a left third resistor R59 forming a parallel circuit structure. One end of the parallel circuit structure is electrically connected to the left first grounding pin, and the other end is grounded. The right shunt circuit in the right suction valve circuit structure 200 includes a right first resistor R60, a right second resistor R61, and a right third resistor R62 forming a parallel circuit structure. One end of the parallel circuit structure is electrically connected to the right first grounding pin, and the other end is grounded.

[0045] In the preferred embodiment, see Figure 2 A fourth resistor for current limiting is electrically connected between the suction valve signal input pin and the suction valve signal output pin. In this embodiment, in the left suction valve closing circuit structure 100, a left fourth resistor R29 for current limiting is electrically connected between the left suction valve signal input pin and the left suction valve signal output pin XF-Lout. In the right suction valve closing circuit structure 200, a right fourth resistor R31 for current limiting is electrically connected between the right suction valve signal input pin and the left suction valve signal output pin XF-Rout.

[0046] In the preferred embodiment, see Figure 2 A fifth resistor for current limiting is connected between the valve closing signal input pin and the valve closing signal output pin. In this embodiment, in the left suction valve closing circuit structure 100, a left fifth resistor R28 for current limiting is electrically connected between the left valve closing signal input pin and the left valve closing signal output pin OFF-DCF-L. In the right suction valve closing circuit structure 200, a right fourth resistor R30 for current limiting is electrically connected between the right valve closing signal input pin and the left valve closing signal output pin OFF-DCF-R.

[0047] In the preferred embodiment, see Figure 2A first capacitor is electrically connected between the first output pin and the second output pin, with one end of the first capacitor connected to analog ground. By setting the first capacitor, the reverse induced electromotive force generated by the inductive electrode (such as a solenoid valve) at the moment of shutdown can be absorbed, preventing the high voltage from directly impacting the first chip U2, thereby protecting the chip from being damaged by breakdown. In this embodiment, in the left pull-off valve circuit structure 100, a left first capacitor C24 is electrically connected between the left first output pin and the left second output pin, with one end of the left first capacitor C24 connected to analog ground; in the right pull-off valve circuit structure 200, a right first capacitor C16 is electrically connected between the right first output pin and the right second output pin, with one end of the right first capacitor C16 connected to analog ground.

[0048] In the preferred embodiment, see Figure 2 The gate valve circuit structure also includes a second capacitor for filtering. One end of the second capacitor is electrically connected between the first power connection pin and the power module 300, and the other end is grounded. By setting the second capacitor, noise interference in the power module 300 is filtered out, avoiding interference to the first chip and ensuring its stable operation. In this embodiment, in the left gate valve circuit structure 100, the left gate valve circuit structure 100 also includes a left second capacitor C2 for filtering. One end of the left second capacitor C2 is electrically connected between the left first power connection pin and the power module 300, and the other end is grounded. In the right gate valve circuit structure 200, the right gate valve circuit structure 200 also includes a right second capacitor C1 for filtering. One end of the right second capacitor C1 is electrically connected between the right first power connection pin and the power module 300, and the other end is grounded.

[0049] In the preferred embodiment, see Figure 1-3 The switch and solenoid valve connection circuit structure includes a first connector, which can be a pin header. The first connector includes a solenoid valve positive terminal connection pin and a second power connection pin (pin 8 in the figure). The solenoid valve positive terminal connection pin is electrically connected to the second output pin of the first chip and also electrically connected to the positive terminal of the solenoid valve. The second power connection pin is electrically connected to the power module 300. In this embodiment, since a dual-burner gas stove is used as an example, the first connector of the switch and solenoid valve connection circuit structure has two solenoid valve positive terminal connection pins, namely the left solenoid valve positive terminal connection pin DCF-L (pin 3 in the figure) and the right solenoid valve positive terminal connection pin DCF-R (pin 5 in the figure). The left second output pin in the left suction-closing valve circuit structure 100 is electrically connected to the left solenoid valve positive terminal connection pin DCF-L, and the right second output pin in the right suction-closing valve circuit structure 200 is electrically connected to the right solenoid valve positive terminal connection pin DCF-R.

[0050] In the preferred embodiment, see Figure 1 , 34. The pulse generator further includes a boost module, a switching module, and a switching input detection module. The boost module is electrically connected to the power supply module 300 and is used to convert the input voltage into a first preset voltage and output it. Specifically, it converts the voltage input to the power supply module 300 into a stable first preset voltage. In this embodiment, the first preset voltage is 3.3V DC voltage, used to stably power the microcontroller, IC1, Bluetooth module, display communication module, etc. The boost module specifically includes a boost chip U1, model ME2107A33M5G. The boost chip U1 has a power input pin Vbat (pin 3 in the figure), a switching pin LX (pin 5 in the figure), an enable pin EN (pin 1 in the figure), a second ground pin (pin 2 in the figure), and a power output pin Vout (pin 4 in the figure). The positive terminal of the power supply module 300 is connected to the power supply of the boost chip U1. The input pin Vbat is electrically connected, thus providing the operating voltage for the boost module. The power output pin Vout of the boost chip U1 outputs a stable 3.3V voltage with an output current of up to 500mA. The boost module also includes an energy storage inductor L1 and a filter capacitor circuit. The energy storage inductor L1 is connected between the power input pin Vbat and the switch pin LX, forming a DC-DC boost energy storage network. The filter capacitor circuit specifically includes a seventh capacitor EC1 and an eighth capacitor C3, which are connected in parallel between the power input pin Vbat and ground to filter out high-frequency noise and low-frequency ripple from the input power supply. It also includes a ninth capacitor C5, which serves as an output filter capacitor connected between the enable pin EN and ground to stabilize the level of the enable pin EN.

[0051] See Figure 4 One end of the switch module is connected to the power supply module 300, and the other end is connected to the enable pin EN of the boost chip U1 in the boost module. The switch module is used to trigger the boost module to start. The switch module includes at least one switch branch, one end of which is connected to the enable pin of the boost module, and the other end is connected to the power supply module 300. When the switch branch is closed, it can trigger the boost module to start. Specifically, see [link to relevant documentation]. Figure 4This embodiment uses a dual-burner gas stove as an example. The switch module includes two switch branches: a first switch branch 400 and a second switch branch 500 connected in parallel. One end of each of the first and second switch branches 400 is connected to the enable pin EN of the boost chip U1 of the boost module, and the other end is connected to the power module 300 (i.e., connected to the positive terminal of the power module 300). Closing the first switch branch 400 and / or the second switch branch 500 triggers the boost module to start. Specifically, the first switch branch 400 is electrically connected to the left rotary switch 600 via the first connector CN1 in the switch and solenoid valve connection circuit structure, specifically through pin 2 of the first connector CN1. The second switch branch 500 is electrically connected to the right rotary switch 700 via the first connector CN1 in the switch and solenoid valve connection circuit structure, specifically through pin 6 of the first connector CN1. Both the left rotary switch 600 and the right rotary switch 700 are normally closed mechanical switches, corresponding to the ignition operation of the left and right burners of the gas stove, respectively. The left rotary switch 600 is connected in parallel with the first isolation diode D5, and the right rotary switch 700 is connected in parallel with the second isolation diode D6, and then connected to the switch trigger circuit. By controlling the closing of either the left rotary switch 600 or the right rotary switch 700, the boost module can be triggered to start. The switch trigger circuit includes a third transistor Q1, which is connected in series between the power module 300 and the enable pin EN of the boost chip U1. When the first switch branch 400 and / or the second switch branch 500 are closed, the third transistor Q1 is turned on to trigger the boost chip U1 to start. The switch trigger circuit also includes a first voltage divider resistor R1, a second voltage divider resistor R2, and a current-limiting resistor R3. The anodes of the first isolation diode D5 and the second isolation diode D6 are electrically connected to the common terminal of the first voltage divider resistor R1 and the second voltage divider resistor R2. The first isolation diodes D5 and D6 are mainly used to prevent crosstalk between the two switching signals. The other end of the first voltage divider resistor R1 is electrically connected to the positive terminal of the power supply module 300, and the other end of the second voltage divider resistor R2 is electrically connected to the base of the third transistor Q1. The emitter of the third transistor Q1 is electrically connected to the positive terminal of the power supply module 300, and the collector of the third transistor Q1 is electrically connected to the enable pin EN of the boost chip U1 via the current-limiting resistor R3. The triggering principle of the boost module can be understood as follows: When either the left rotary switch 600 or the right rotary switch 700 is closed, the current flows to the trigger node through the corresponding isolation diode. After being divided by the first voltage divider resistor R1 and the second voltage divider resistor R2, the third transistor Q1 is turned on. The collector of the third transistor Q1 outputs a high level and is sent to the enable pin EN of the boost chip 1 through the current limiting resistor R3, triggering the boost chip U1 to start working.Since the first switch branch 400 and the second switch branch 500 are connected in parallel, the closing of either switch can independently trigger the boost module to start, thereby achieving the effect of dual-path independent control.

[0052] In this embodiment, see Figure 3 and 4 The switch input detection module is part of the switch and solenoid valve connection circuit structure. It connects to the switch module and is used to detect the state of the switch module, specifically the closed or open state of the first switch branch 400 or the second switch branch 500. Specifically, the switch input detection module includes a first detection branch and a second detection branch. The first detection branch includes a third isolation diode D1, a first current-limiting resistor R69, and a first pull-up resistor R67. The cathode of the third isolation diode D1 is electrically connected to the first switch branch 400, and the anode of the third isolation diode D1 is electrically connected to the left rotary switch detection pin KG-Lin (pin 21 in the figure) of the microcontroller IC1 via the first current-limiting resistor R69. One end of the first pull-up resistor R67 is electrically connected to the power output pin Vout of the boost chip U1, and the other end is electrically connected between the first current-limiting resistor R69 and the left rotary switch detection pin KG-Lin. The second detection branch includes a fourth isolation diode D2, a second current-limiting resistor R68, and a second pull-up resistor R66. The cathode of the fourth isolation diode D2 is electrically connected to the second switch branch 500, and the anode of the fourth isolation diode D2 is electrically connected to the right rotary switch detection pin KG-Rin (pin 20 in the figure) of the microcontroller IC1 via the second current-limiting resistor R68. One end of the second pull-up resistor R66 is electrically connected to the power output pin Vout of the boost chip U1, and the other end is electrically connected between the second current-limiting resistor R68 and the right rotary switch detection pin KG-Rin.

[0053] In the preferred embodiment, see Figure 1 , 3 4. The switch input detection module adopts a level detection circuit. When the switch is closed, the switch input detection module can output a high-level signal to the microcontroller; when the switch is open, the switch input detection module can output a low-level signal to the microcontroller. Specifically, when the left rotary switch 600 is open, the first pull-up resistor R67 pulls the left rotary switch detection pin KG-Lin up to a 3.3V high level; when the left rotary switch 600 is closed, the first switch detection pin KG-Lin is pulled down to a low level through the third isolation diode D1 and the first current-limiting resistor R69. Similarly, the level of the right rotary switch detection pin KG-Rin switches between high level (3.3V) and low level (0V) as the right rotary switch 700 is closed / opened.

[0054] In this embodiment, see Figure 1The microcontroller IC1 is connected to the switch input detection module, the output pin of the boost module, and the power output pin Vout of the boost module. In this embodiment, the microcontroller IC1 is an MCU chip, which has a power pin VDD (pin 28 in the figure), a third ground pin VSS (pin 1 in the figure), and multiple function pins. Its power pin VDD is electrically connected to the power output pin Vout of the boost chip U1 in the boost module, and the third ground pin VSS is grounded.

[0055] refer to Figure 1 In this embodiment, the functional pin configuration of the microcontroller IC1 is mainly as follows: Power supply control pin DYen1 (pin 11 in the figure): electrically connected to the collector of the third transistor Q1 in the switch trigger circuit, used to control or release the enable control of the boost module; Left rotary switch detection pin KG-Lin (pin 21 in the figure): electrically connected to the first detection branch, detecting the state of the left rotary switch; Right rotary switch detection pin KG-Rin (pin 20 in the figure): electrically connected to the second detection branch, detecting the state of the right rotary switch; Left ignition control pin DH -Lout (pin 9 in the diagram): Electrically connected to the left ignition circuit module, controlling the ignition of the left burner; Right ignition control pin DH-Rout (pin 8 in the diagram): Electrically connected to the right ignition circuit module, controlling the ignition of the right burner; Left shut-off valve signal output pin OFF-DCF-L (pin 15 in the diagram): Electrically connected to the left suction shut-off valve circuit connection structure, controlling the left solenoid valve corresponding to the left burner; Right shut-off valve signal output pin OFF-DCF-R (pin 19 in the diagram): Electrically connected to the right suction shut-off valve circuit connection structure, controlling the right solenoid valve corresponding to the right burner.

[0056] In this embodiment, the microcontroller is electrically connected to the boost module. When the output voltage of the boost module reaches a first preset voltage, the microcontroller enables the boost module to continue operating via its enable pin, thereby achieving power supply control. In this embodiment, the first preset voltage is 3.3V ± 0.1V. Specifically, the circuit implementation principle of the power supply control section is as follows: (Refer to...) Figure 1 The power supply control circuit includes a third voltage divider resistor R40 and a fourth voltage divider resistor R4. One end of the third voltage divider resistor R40 is electrically connected to one end of the ninth capacitor C5, which is grounded. This end of the third voltage divider resistor R40 is also electrically connected between the collector of the third transistor Q1 and the current-limiting resistor R3. The other end is electrically connected to the enable pin EN of the boost chip U1. The fourth voltage divider resistor R4 is connected in parallel with the ninth capacitor C5.

[0057] The power supply control pin DYen1 of microcontroller IC1 is electrically connected to the collector of the third transistor Q1. When the boost module starts up, the power output pin Vout outputs a voltage of 3.3V, and microcontroller IC1 is powered on. After detecting that the output voltage of the boost module reaches the first preset voltage (3.3V ± 0.1V), microcontroller IC1 outputs a high-level signal through the power supply control pin DYen1 to maintain the conduction state of the third transistor Q1, thereby taking over the level control of the enable pin EN of boost chip U1.

[0058] At this point, even if the user releases the left rotary switch 600 or the right rotary switch 700, disconnecting the switch module, the boost module can continue to operate unaffected by the switch module's state because the microcontroller continuously keeps the third transistor Q1 on through the power supply control pin DYen1, and the enable pin EN of the boost chip U1 remains high. This achieves the "power supply takeover" function, ensuring that tasks such as ignition and gas control can be executed completely, avoiding interruptions due to switch bounce or premature release. Therefore, the power supply method is more reasonable, and the power supply is more reliable and stable.

[0059] In the preferred embodiment, see Figure 1 and 5 The pulse generator also includes at least one ignition circuit structure, which includes a first transistor, a second transistor, a high-voltage storage capacitor, a first inductor, a second inductor, a third inductor, a fourth inductor, and a fifth inductor. The microcontroller IC1 includes an ignition signal output pin. The base of the first transistor is electrically connected to the ignition signal output pin, the emitter of the first transistor is grounded, the collector of the first transistor is electrically connected to one end of the first inductor, the base of the second transistor is electrically connected to the other end of the first inductor, the emitter of the second transistor is electrically connected to the power module 300, the collector of the second transistor is electrically connected to one end of the second inductor, the third inductor and the second inductor generate an induced electromotive force, one end of the third inductor is electrically connected to one end of the high-voltage storage capacitor, the other end of the third inductor is grounded, the other end of the high-voltage storage capacitor is electrically connected to one end of the fourth inductor, the other end of the fourth inductor is grounded, the fourth inductor and the fifth inductor generate an induced electromotive force, and the fifth inductor is electrically connected to the ignition needle. The voltage is initially boosted through the first, second, and third inductors, and then further increased to approximately 15000V through the high-voltage storage capacitor, the fourth inductor, and the fifth inductor to generate an electric spark at the ignition needle. This embodiment uses a dual-burner gas stove as an example; see [link to example]. Figure 1 and 5It includes two ignition circuit structures: a left ignition circuit structure and a right ignition circuit structure. The left ignition circuit structure includes a left first transistor Q7, a left second transistor Q5, a left high-voltage storage capacitor CB1, a left first inductor L1, a left second inductor L2, a left third inductor L3, a left fourth inductor L4, and a left fifth inductor L5. The microcontroller IC1 includes a left ignition signal output pin DH-Lout (pin 9 in the diagram). The base of the left first transistor Q7 is electrically connected to the left ignition signal output pin DH-Lout, the emitter of the left first transistor Q7 is grounded, and the collector of the left first transistor Q7 is electrically connected to one end of the left first inductor L1. The base of the left second transistor Q5 is electrically connected to the other end of the left first inductor L1. The emitter of the left second transistor Q5 is electrically connected to the power module 300. The collector of the left second transistor Q5 is electrically connected to one end of the left second inductor L2. The left third inductor L3 and the left second inductor L2 generate an induced electromotive force. One end of the left third inductor L3 is electrically connected to one end of the left high-voltage storage capacitor CB1, and the other end of the left third inductor L3 is grounded. The other end of the left high-voltage storage capacitor CB1 is electrically connected to one end of the left fourth inductor L4, and the other end of the left fourth inductor L4 is grounded. The left fourth inductor L4 and the left fifth inductor L5 generate an induced electromotive force. 5. The left ignition needle corresponding to the left burner is electrically connected; the right ignition circuit structure includes the right first transistor Q6, the right second transistor Q4, the right high-voltage storage capacitor CB2, the right first inductor L6, the right second inductor L7, the right third inductor L8, the right fourth inductor L9, and the right fifth inductor L10. The microcontroller IC1 includes a right ignition signal output pin DH-Rout (pin 8 in the figure). The base of the right first transistor Q6 is electrically connected to the right ignition signal output pin DH-Rout. The emitter of the right first transistor Q6 is grounded. The collector of the right first transistor Q6 is electrically connected to one end of the right first inductor L6. The base of the right second transistor Q4 is electrically connected to the right first inductor L6. The other end of inductor L6 is electrically connected to the emitter of the right second transistor Q4 and the power module 300. The collector of the right second transistor Q4 is electrically connected to one end of the right second inductor L7. The right third inductor L8 and the right second inductor L7 generate an induced electromotive force. One end of the right third inductor L8 is electrically connected to one end of the right high-voltage storage capacitor CB2. The other end of the right third inductor L8 is grounded. The other end of the right high-voltage storage capacitor CB2 is electrically connected to one end of the right fourth inductor L9. The other end of the right fourth inductor L9 is grounded. The right fourth inductor L9 and the right fifth inductor L10 generate an induced electromotive force. The right fifth inductor L10 is electrically connected to the right ignition needle corresponding to the right burner.

[0060] In the preferred embodiment, see Figure 5The ignition circuit structure also includes a first diode and a third capacitor. The first diode and the third capacitor are connected in parallel and between the emitter and base of the second transistor. The first diode and the third capacitor work together to protect the second transistor from damage caused by the reverse induced electromotive force. This embodiment uses a dual-burner gas stove as an example; see [link to example]. Figure 5 The left ignition circuit structure also includes a left first diode D3 and a left third capacitor C13. The left first diode D3 and the left third capacitor C13 are connected in parallel and connected between the emitter and base of the left second transistor Q5. The right ignition circuit structure also includes a right first diode D4 and a right third capacitor C12. The right first diode D4 and the right third capacitor C12 are connected in parallel and connected between the emitter and base of the right second transistor Q4.

[0061] In the preferred embodiment, see Figure 5 The ignition circuit structure also includes a sixth resistor and a seventh resistor. The sixth resistor is electrically connected between the base of the first transistor and the ignition signal output pin of the microcontroller IC1. One end of the seventh resistor is connected between the sixth resistor and the base of the first transistor, and the other end is grounded. The sixth and seventh resistors are voltage divider resistors, which can divide the weak ion current signal detected on the flame detection electrode and convert it into a voltage signal that the microcontroller can recognize. This ensures that when there is no flame signal, the ignition signal output pin of the microcontroller is in a defined low-level state, preventing misjudgment. In this embodiment, for a dual-burner gas stove, the left ignition circuit structure further includes a left sixth resistor R21 and a left seventh resistor R19. The left sixth resistor R21 is electrically connected between the base of the left first transistor Q7 and the left ignition signal output pin DH-Lout of the microcontroller IC1. One end of the left seventh resistor R19 is connected between the left sixth resistor R21 and the base of the left first transistor Q7, and the other end is grounded. The right ignition circuit structure further includes a right sixth resistor R22 and a right seventh resistor R20. The right sixth resistor R22 is electrically connected between the base of the right first transistor Q6 and the right ignition signal output pin DH-Rout of the microcontroller IC1. One end of the right seventh resistor R20 is connected between the right sixth resistor R22 and the base of the right first transistor Q6, and the other end is grounded.

[0062] In the preferred embodiment, see Figure 5The ignition circuit structure also includes a second diode and an eighth resistor. One anode of the second diode is electrically connected to a third inductor, and its cathode is electrically connected to a high-voltage storage capacitor. One end of the eighth resistor is electrically connected between the second diode and the high-voltage storage capacitor, and the other end is grounded. The eighth resistor is a current-limiting resistor, used to limit the current flowing through the ignition needle or related circuits, preventing excessive discharge current from burning the ignition needle or generating excessive electromagnetic interference. The second diode provides a discharge path for the reverse induced electromotive force generated by the primary winding formed by the first, second, and third inductors at the moment the second transistor is cut off, protecting the second transistor from being broken down by high-voltage spikes. In this embodiment, a dual-burner gas stove is used as an example for illustration; see [link to documentation]. Figure 5 The left ignition circuit structure also includes a left second diode D7 and a left eighth resistor R25. One end of the anode of the left second diode D7 is electrically connected to the left third inductor L3, and one end of its cathode is electrically connected to the left high-voltage storage capacitor CB1. One end of the left eighth resistor R25 is electrically connected between the left second diode D7 and the left high-voltage storage capacitor CB1, and the other end is grounded. The right ignition circuit structure also includes a right second diode D8 and a right eighth resistor R26. One end of the anode of the right second diode D8 is electrically connected to the right third inductor L8, and one end of its cathode is electrically connected to the right high-voltage storage capacitor CB2. One end of the right eighth resistor R26 is electrically connected between the right second diode D8 and the right high-voltage storage capacitor CB2, and the other end is grounded.

[0063] In the preferred embodiment, see Figure 1 The pulse generator also includes a fourth capacitor EC4, a fifth capacitor C14, and a sixth capacitor C15. These capacitors are connected in parallel, with one end of the parallel circuit electrically connected to the microcontroller's power supply pin and the other end grounded. Together, these capacitors form a power decoupling and filtering network for the microcontroller's VDD power supply pin. The parallel connection covers noise in different frequency bands, ensuring stable power supply for the microcontroller. Specifically, the fourth capacitor EC4 is an electrolytic capacitor used for energy storage and low-frequency filtering, meeting the microcontroller's instantaneous high current demands and preventing voltage drops. The fifth capacitor C14 is a ceramic capacitor used for intermediate frequency decoupling, providing instantaneous current to the microcontroller's internal logic switches and filtering common ripple on the power lines. The sixth capacitor C15 is also a ceramic capacitor used for high-frequency bypass, filtering high-frequency noise interference from Bluetooth modules, radio frequency, etc.

[0064] The present invention also provides a specific embodiment of a gas stove, see [link to embodiment]. Figure 6 and 7The gas stove includes a control panel and at least one rotary switch that can rotate relative to the control panel. In this embodiment, a dual-burner gas stove is provided, therefore, there are two rotary switches: a left rotary switch 600 and a right rotary switch 700. It also includes the aforementioned pulse generator 800. The rotary switches are electrically connected to the switch and solenoid valve connection circuit structure. Because the gas stove of this invention has the aforementioned pulse generator 800, it also possesses all the beneficial technical effects brought by the pulse generator 800, which will not be elaborated upon here.

[0065] This embodiment also includes a wireless communication module, which is connected to both the boost module and the microcontroller, and is powered by the boost module. The wireless communication module is a Bluetooth module, supporting mobile terminal connections, thus allowing users to remotely view the stove's status and set energy-saving parameters.

[0066] In this embodiment, the power module uses a pluggable interface that supports a wide voltage input range of 1V-3.2V. No additional power conversion module is required, and dry batteries of different capacities can be directly connected to meet the power supply needs of household gas stoves. A reverse connection protection diode is built into the interface to prevent the positive and negative terminals of the battery from being connected incorrectly, which could damage the chip and improve hardware safety.

[0067] This embodiment also includes a voltage detection circuit, which is mainly used to collect the output voltage of the power module (such as a dry cell battery). When the output voltage of the power module is detected to be less than or equal to 1V, the microcontroller is immediately triggered to issue a low voltage alarm signal, and at the same time, the power supply to the suction valve circuit is cut off to avoid the risk of gas leakage due to valve failure. The voltage detection circuit includes two series-connected voltage divider resistors. One end of the series circuit formed by the two series-connected voltage divider resistors is connected to the power module 300, and the other end is grounded. An AD detection pin of the microcontroller IC1 is connected between the two voltage divider resistors.

[0068] The specific working process of the pulse generator 800 and the gas stove in this invention can be referenced in the following operation steps:

[0069] S1: Startup:

[0070] When the user closes the left rotary switch 600 or the right rotary switch 700, the current flows through the corresponding isolation diode to the switch trigger circuit, driving the third transistor to conduct. The enable pin EN of the boost chip U1 then receives a high level, and the boost module starts up.

[0071] S2: Boost Stabilization

[0072] When the boost converter U1 is operational, the power output pin Vout outputs a voltage of 3.3V. The seventh, eighth, and ninth capacitors ensure voltage stability.

[0073] S3: Microcontroller Power-On and Detection:

[0074] When the microcontroller is powered on, it collects the voltage of the power output pin Vout in real time. When the detected voltage reaches the first preset voltage (3.3V±0.1V), the boost voltage is determined to be stable.

[0075] S4: Power supply connection

[0076] The microcontroller outputs a high level through the power supply control pin DYen1 to keep the third transistor on and take over the enable control of the boost module. At this time, even if the user releases the switch, the boost module continues to work.

[0077] S5: Switch Status Detection

[0078] The switch input detection module monitors the status of the left rotary switch 600 and the right rotary switch 700 in real time, outputting high / low level signals to the left rotary switch detection pin KG-Lin and the right rotary switch detection pin KG-Rin of the microcontroller. The microcontroller then determines whether the system is in single-channel or dual-channel operating mode.

[0079] S6: Ignition and Gas Control

[0080] According to the working state, the microcontroller triggers the ignition circuit module through the left ignition signal output pin DH-Lout / right ignition signal output pin DH-Rout to generate a high-voltage pulse to complete ignition; at the same time, it controls the corresponding intake and exhaust valve circuit connection structure through the left valve closing signal output pin OFF-DCF-L / right valve closing signal output pin OFF-DCF-R, driving the corresponding solenoid valve to close and open the gas passage.

[0081] S7: Real-time Security Detection

[0082] The gas leak sensor in the safety protection system monitors the gas concentration in real time. When an abnormality occurs, the microcontroller triggers an alarm and cuts off the gas supply.

[0083] S8: Task Completion Detection

[0084] The microcontroller continuously monitors the ignition completion signal, the solenoid valve engagement stability signal, and the switch status.

[0085] S9: Power Off / Sleep

[0086] When all tasks are completed and both the left rotary switch 600 and the right rotary switch 700 are open, the microcontroller releases the power supply control pin DYen1, the third transistor is cut off, the enable pin EN of the boost chip U1 goes low, the boost module stops working, and the system is completely powered off. At this time, the standby power consumption is ≤10μA.

[0087] If the task is completed but the switch is not turned off, the microcontroller will enter a sleep state, which will be maintained by a low-power power supply provided by the boost module, and will be completely powered off after the switch is turned off.

[0088] S10: System Reboot

[0089] The user closes the left rotary switch 600 or the right rotary switch 700 again and repeats the above steps S1-S9 to restore the system's operation.

[0090] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0091] In the description of this specification, the references to terms such as "preferred embodiment," "another embodiment," "other embodiment," or "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0092] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A pulse generator, characterized in that: It includes a microcontroller and at least one shut-off valve circuit structure; The suction and closing valve circuit structure is electrically connected to the microcontroller and is used to receive the suction valve signal sent by the microcontroller to generate a reverse voltage and cause the solenoid valve to open, and to receive the closing valve signal sent by the microcontroller to generate a positive voltage and cause the solenoid valve to close. The microcontroller is used to send a valve-closing signal or a valve-suction signal to the valve-suction circuit structure.

2. The pulse generator according to claim 1, characterized in that: The suction and shut-off valve circuit structure includes a first chip, the first chip includes a first ground pin, the first ground pin is grounded through a shunt circuit; the shunt circuit includes at least one shunt resistor.

3. The pulse generator according to claim 2, characterized in that: The first chip further includes a suction valve signal input pin, a valve closing signal input pin, a first output pin, a second output pin, and a first power connection pin. The microcontroller includes a suction valve signal output pin and a valve closing signal output pin. The suction valve signal input pin is electrically connected to the suction valve signal output pin, and the valve closing signal input pin is electrically connected to the valve closing signal output pin. The first power connection pin is electrically connected to the power module. The second output pin is electrically connected to the switch and solenoid valve connection circuit structure. The switch and solenoid valve connection circuit structure is used to send the positive voltage or the reverse voltage to the solenoid valve. The first output pin is electrically connected to the negative terminal of the solenoid valve.

4. The pulse generator according to claim 3, characterized in that: The shunt circuit includes multiple shunt resistors, which form a parallel circuit structure. One end of the parallel circuit structure is electrically connected to the first grounding pin, and the other end is grounded. Alternatively, a fourth resistor for current limiting is electrically connected between the suction valve signal input pin and the suction valve signal output pin; Alternatively, a fifth resistor for current limiting can be connected between the valve closing signal input pin and the valve closing signal output pin; Alternatively, a first capacitor is electrically connected between the first output pin and the second output pin, with one end of the first capacitor connected to analog ground; Alternatively, the valve circuit structure may further include a second capacitor for filtering, with one end of the second capacitor electrically connected between the first power connection pin and the power module, and the other end grounded.

5. The pulse generator according to claim 3, characterized in that: The switch and solenoid valve connection circuit structure includes a first connector, which includes a solenoid valve positive connection pin and a second power connection pin. The solenoid valve positive connection pin is electrically connected to the second output pin of the first chip and is also electrically connected to the positive terminal of the solenoid valve. The second power connection pin is electrically connected to the power module.

6. The pulse generator according to claim 1, characterized in that: The pulse generator also includes a boost module, a switching module, and a switching input detection module; The boost module is electrically connected to the power module and is used to convert the input voltage into a first preset voltage and output it. The switching module has one end connected to the power module and the other end connected to the enable pin of the boost module. The switching module is used to trigger the boost module to start. The switch input detection module is connected to the switch module and is used to detect the state of the switch module; The microcontroller is electrically connected to the boost module. When the output voltage of the boost module is detected to reach the first preset voltage, the boost module continues to work through the enable pin of the boost module.

7. The pulser according to claim 6, characterized in that: The switching module includes at least one switching branch, one end of which is connected to the enable pin of the boost module and the other end is connected to the power module; when the switching branch is closed, it can trigger the boost module to start. Alternatively, the switch input detection module may employ a level detection circuit, whereby the switch input detection module outputs a high-level signal to the microcontroller when the switch is closed, and outputs a low-level signal to the microcontroller when the switch is open.

8. The pulser according to claim 1, characterized in that: The pulse generator further includes at least one ignition circuit structure, which includes a first transistor, a second transistor, a high-voltage storage capacitor, a first inductor, a second inductor, a third inductor, a fourth inductor, and a fifth inductor. The microcontroller includes an ignition signal output pin. The base of the first transistor is electrically connected to the ignition signal output pin, the emitter of the first transistor is grounded, the collector of the first transistor is electrically connected to one end of the first inductor, the base of the second transistor is electrically connected to the other end of the first inductor, the emitter of the second transistor is electrically connected to the power module, the collector of the second transistor is electrically connected to one end of the second inductor, the third inductor and the second inductor generate an induced electromotive force, one end of the third inductor is electrically connected to one end of the high-voltage storage capacitor, the other end of the third inductor is grounded, the other end of the high-voltage storage capacitor is electrically connected to one end of the fourth inductor, the other end of the fourth inductor is grounded, the fourth inductor and the fifth inductor generate an induced electromotive force, and the fifth inductor is electrically connected to the ignition needle. Alternatively, the pulse generator may further include a fourth capacitor, a fifth capacitor, and a sixth capacitor, which are connected in parallel. One end of the parallel circuit is electrically connected to the power supply pin of the microcontroller, and the other end is grounded.

9. The pulse generator according to claim 8, characterized in that: The ignition circuit structure also includes a first diode and a third capacitor. The first diode and the third capacitor are connected in parallel and connected between the emitter and base of the second transistor. Alternatively, the ignition circuit structure may further include a sixth resistor and a seventh resistor. The sixth resistor is electrically connected between the base of the first transistor and the ignition signal output pin of the microcontroller. One end of the seventh resistor is connected between the sixth resistor and the base of the first transistor, and the other end is grounded. Alternatively, the ignition circuit structure may further include a second diode and an eighth resistor. One anode of the second diode is electrically connected to the third inductor, and one cathode is electrically connected to the high-voltage storage capacitor. One end of the eighth resistor is electrically connected between the second diode and the high-voltage storage capacitor, and the other end is grounded.

10. A gas stove, comprising a panel and at least one rotary switch rotatable relative to the panel, characterized in that: It also includes a pulser as described in any one of claims 1-9, wherein the rotary switch is electrically connected to the switch and solenoid valve connection circuit structure.

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