CN204392073U - The drive circuit of electricity cooking pot and electric cooking pot breaker in middle pipe - Google Patents
The drive circuit of electricity cooking pot and electric cooking pot breaker in middle pipe Download PDFInfo
- Publication number
- CN204392073U CN204392073U CN201520079912.2U CN201520079912U CN204392073U CN 204392073 U CN204392073 U CN 204392073U CN 201520079912 U CN201520079912 U CN 201520079912U CN 204392073 U CN204392073 U CN 204392073U
- Authority
- CN
- China
- Prior art keywords
- resistance
- cooking pot
- driver element
- switching tube
- electric cooking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Electronic Switches (AREA)
Abstract
The utility model discloses the drive circuit of a kind of electric cooking pot and electric cooking pot breaker in middle pipe, described drive circuit comprises: control signal input; For driving described switching tube conducting and controlling the first driver element of the On current slope of described switching tube, described first driver element is connected with described control signal input; Turn off for driving described switching tube and control the second driver element of the cut-off current slope of described switching tube, described second driver element is connected with described control signal input; Wherein, described On current slope and described cut-off current slope are independently controlled by described first driver element of correspondence and described second driver element respectively, thus, can independently the On current slope of control switch pipe and cut-off current slope, make the On current slope of switching tube and cut-off current slope inconsistent, and then the operating state of switching tube can be made to reach optimum state, improve the functional reliability of switching tube.
Description
Technical field
The utility model relates to kitchen appliance technical field, particularly a kind of drive circuit of electric cooking pot breaker in middle pipe and a kind of electric cooking pot with this drive circuit.
Background technology
In correlation technique, IGBT is usually operated at big current, high voltage shape and alternate conduction and cut-off state, and the curent change amplitude flowing through IGBT is also usual up to five or six ten amperes, and thus, the curent change slope between the collector electrode of control IGBT switching tube and emitter is extremely important.Such as, when IGBT conducting, if the curent change between collector electrode and emitter is too fast, then can increase EMI interference (Electromagnetic Interference, electromagnetic interference) of system, even burn IGBT, if and curent change between collector electrode and emitter is excessively slow, then can increase the switching loss of IGBT, increase caloric value, the collector electrode therefore during necessary strict control IGBT turn-on and turn-off and the current slope between emitter.
Correlation technique proposes current slope when a kind of resistance being serially connected in the grid of IGBT by adjustment regulates IGBT turn-on and turn-off.But, its shortcoming existed is, current slope during turn-on and turn-off is all determined by the resistance of same resistance, current slope when current slope during conducting and shutoff is basically identical, and due to the On current slope of the IGBT of system load characteristic the best and cut-off current slope be inconsistent, therefore the operating state of relevant IGBT is difficult to reach optimum state, and IGBT functional reliability is poor.
Utility model content
The utility model is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, an object of the present utility model is to propose a kind of drive circuit that can make On current slope and the inconsistent electric cooking pot breaker in middle pipe of cut-off current slope.
Another object of the present utility model is to propose a kind of electric cooking pot.
According to the drive circuit of a kind of electric cooking pot breaker in middle pipe that the utility model proposes, comprising: control signal input; For driving described switching tube conducting and controlling the first driver element of the On current slope of described switching tube, described first driver element is connected with described control signal input; Turn off for driving described switching tube and control the second driver element of the cut-off current slope of described switching tube, described second driver element is connected with described control signal input; Wherein, described On current slope and described cut-off current slope are independently controlled by described first driver element of correspondence and described second driver element respectively.
According to the drive circuit of the electric cooking pot breaker in middle pipe that the utility model proposes, by the first drive unit drives switching tube conducting and the On current slope of control switch pipe, turned off and the cut-off current slope of control switch pipe by the second drive unit drives switching tube, and the first driver element and the second driver element independently can control On current slope and cut-off current slope, thus, can independently the On current slope of control switch pipe and cut-off current slope, make the On current slope of switching tube and cut-off current slope inconsistent, and then the operating state of switching tube can be made to reach optimum state, improve the functional reliability of switching tube.
Particularly, described first driver element comprises: the first resistance; One NPN triode, the collector electrode of a described NPN triode is connected with default power supply by described first resistance, the grounded emitter of a described NPN triode, and the base stage of a described NPN triode is connected with described control signal input; Second resistance, one end of described second resistance is connected with the base stage of a described NPN triode, and the other end of described second resistance is connected with described default power supply; 2nd NPN triode, the collector electrode of described 2nd NPN triode is connected with default power supply, and the base stage of described 2nd NPN triode is connected with the collector electrode of a described NPN triode; First adjusting resistance, one end of described first adjusting resistance is connected with the emitter of described 2nd NPN triode, and the other end of described first adjusting resistance is connected with the control end of described switching tube.
Particularly, described second driver element and described first driver element share described first resistance, a described NPN triode and described second resistance, described second driver element also comprises: the first PNP triode, the grounded collector of described first PNP triode, the base stage of described first PNP triode is connected with the collector electrode of a described NPN triode; Second adjusting resistance, one end of described second adjusting resistance is connected with the emitter of described first PNP triode, and the other end of described second adjusting resistance is connected with the control end of described switching tube.
Further, the drive circuit of described electric cooking pot breaker in middle pipe also comprises: the 3rd resistance, and one end of described 3rd resistance is connected with the control end of described switching tube, the other end ground connection of described 3rd resistance; Voltage stabilizing didoe, described voltage stabilizing didoe and described 3rd resistor coupled in parallel, the negative electrode of described voltage stabilizing didoe is connected with one end of described 3rd resistance, and the anode of described voltage stabilizing didoe is connected with the other end of described 3rd resistance.
Preferably, described switching tube can be insulated gate bipolar transistor IGBT.
Preferably, described control signal input can received pulse width modulated pwm signal.
According to the electric cooking pot that the utility model proposes on the other hand, comprise the drive circuit of described electric cooking pot breaker in middle pipe.
According to the electric cooking pot that the utility model proposes, by the drive circuit of above-mentioned electric cooking pot breaker in middle pipe, can independently the On current slope of control switch pipe and cut-off current slope, make the On current slope of switching tube and cut-off current slope inconsistent, and then the operating state of switching tube can be made to reach optimum state, improve the functional reliability of switching tube.
Preferably, described electric cooking pot can be electromagnetic oven, IH electric cooker or IH electric pressure cooker.
Accompanying drawing explanation
Fig. 1 is the block diagram of the drive circuit of electric cooking pot breaker in middle pipe according to utility model embodiment;
Fig. 2 is the circuit theory diagrams of the drive circuit of electric cooking pot breaker in middle pipe according to a utility model embodiment; And
Fig. 3 is the block diagram of the electric cooking pot according to the proposition of the utility model embodiment.
Reference numeral:
The drive circuit 100 of electricity cooking pot breaker in middle pipe, control signal input IN, the first driver element 101, second driver element 102, switching tube 103, first resistance R1, a NPN triode Q1, the second resistance R2, the 2nd NPN triode Q2, the first adjusting resistance R4, the first PNP triode Q3, the second adjusting resistance R5, the 3rd resistance R3, voltage stabilizing didoe ZD and electric cooking pot 200.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
Below with reference to the accompanying drawings 1-3 describes the electric cooking pot of the utility model embodiment proposition and the drive circuit of electric cooking pot breaker in middle pipe.
Fig. 1 is the block diagram of the drive circuit of electric cooking pot breaker in middle pipe according to utility model embodiment.As shown in Figure 1, the drive circuit 100 of this electric cooking pot breaker in middle pipe comprises control signal input IN, the first driver element 101 and the second driver element 102.
Wherein, the first driver element 101 is for driving switch pipe 103 conducting and the On current slope of control switch pipe 103, and the first driver element 101 is connected with control signal input IN; Second driver element 102 turns off and the cut-off current slope of control switch pipe 103 for driving switch pipe 103, and the second driver element 102 is connected with control signal input IN; On current slope and cut-off current slope are respectively by the first driver element 101 and the independent control of the second driver element 102 of correspondence.
That is, the drive circuit 100 of switching tube by the first driver element 101 and the second driver element 102 output drive signal to switching tube 103, with corresponding driving switch pipe 103 turn-on and turn-off.Further, the first driver element 101 can the On current slope of control switch pipe 103 independently, and the second driver element 102 can the cut-off current slope of control switch pipe 103 independently.
According to a concrete example of the present utility model, as shown in Figure 2, switching tube 103 can be insulated gate bipolar transistor IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor).It should be noted that, the electric current when On current of switching tube 103 can be the conducting of IGBT pipe between collector electrode and emitter, On current slope is the slope of On current change, correspondingly, the cut-off current of switching tube 103 can be electric current when IGBT pipe turns off between collector electrode and emitter, and cut-off current slope is the slope of cut-off current change.
Specifically, by drive circuit 100 input control signal of control signal input IN to switching tube, when the first driver element 101 tends to conducting according to control signal driving switch pipe 103 by shutoff, On current and the electric current between collector electrode and emitter will increase gradually, On current slope is determined by the first driver element 101, when the second driver element 102 is tended to turn off by conducting according to control signal driving switch pipe 103, cut-off current and the electric current between collector electrode and emitter will reduce gradually, and cut-off current slope is determined by the second driver element 102.
Thus, according to the drive circuit of the electric cooking pot breaker in middle pipe that the utility model proposes, by the first drive unit drives switching tube conducting and the On current slope of control switch pipe, turned off and the cut-off current slope of control switch pipe by the second drive unit drives switching tube, and the first driver element and the second driver element independently can control On current slope and cut-off current slope, thus, can independently the On current slope of control switch pipe and cut-off current slope, make the On current slope of switching tube and cut-off current slope inconsistent, and then the operating state of switching tube can be made to reach optimum state, improve the functional reliability of switching tube.
Below in conjunction with Fig. 2, the drive circuit 100 of the switching tube of the utility model embodiment is described in detail.
As the example of Fig. 2, the first driver element 101 comprises the first resistance R1, a NPN triode Q1, the second resistance R2, the 2nd NPN triode Q2 and the first adjusting resistance R4.
Wherein, the collector electrode of a NPN triode Q1 is connected with default power supply VCC by the first resistance R1, the grounded emitter of a NPN triode Q1, and the base stage of a NPN triode Q1 is connected with control signal input IN; One end of second resistance R2 is connected with the base stage of a NPN triode Q1, and the other end of the second resistance R2 is connected with default power supply VCC; The collector electrode of the 2nd NPN triode Q2 is connected with default power supply VCC, and the base stage of the 2nd NPN triode Q2 is connected with the collector electrode of a NPN triode Q1; One end of first adjusting resistance R4 is connected with the emitter of the 2nd NPN triode Q2, and the other end of the first adjusting resistance R4 is connected with the grid of the control end of switching tube 103 and IGBT pipe.
Specifically, when a NPN triode Q1 turns off, the voltage of the base stage of the 2nd NPN triode Q2 raises, the 2nd NPN triode Q2 conducting, and then the voltage of the grid of IGBT pipe raises gradually, IGBT pipe is by turning off trend conducting, the voltage flow through between the collector electrode of IGBT pipe and emitter raises, and the On current slope of IGBT pipe is determined by the first adjusting resistance R4, and namely the resistance of resistance R4 is larger, On current slope is less, and On current change is slower; And the resistance of resistance R4 is less, On current slope is larger, On current change more block.
As the example of Fig. 2, the second driver element 102 and the first driver element 101 share the first resistance R1, a NPN triode Q1 and the second resistance R2, and the second driver element 102 also comprises: the first PNP triode Q3 and the second adjusting resistance R5.
Wherein, the grounded collector of the first PNP triode Q3, the base stage of the first PNP triode Q3 is connected with the collector electrode of a NPN triode Q1; One end of second adjusting resistance R5 is connected with the emitter of the first PNP triode Q3, and the other end of the second adjusting resistance R5 is connected with the grid of the control end of switching tube 103 and IGBT pipe.In other words, the other end of the second adjusting resistance R5 is also connected with the other end of the first adjusting resistance R4, have node between second adjusting resistance R5 and the first adjusting resistance R4, the drive circuit 100 of switching tube passes through the control end of node output drive signal to switching tube 103.
Specifically, when a NPN triode Q1 conducting, the voltage of the base stage of the first PNP triode Q3 reduces, the first PNP triode Q3 conducting, and then the voltage of the grid of IGBT pipe reduces gradually, IGBT pipe is tended to turn off by conducting, the voltage flow through between the collector electrode of IGBT pipe and emitter reduces, and the cut-off current slope of IGBT pipe is determined by the second adjusting resistance R5, and namely the resistance of resistance R5 is larger, cut-off current slope is less, and cut-off current change is slower; And the resistance of resistance R5 is less, cut-off current slope is larger, cut-off current change more block.
Further, the drive circuit 100 of electric cooking pot breaker in middle pipe also comprises: the 3rd resistance R3 and voltage stabilizing didoe ZD.
Wherein, one end of the 3rd resistance R3 and the control end of the switching tube 103 i.e. other end of the first adjusting resistance R4 is connected with the other end of the second adjusting resistance R5, the other end ground connection of the 3rd resistance R3; Voltage stabilizing didoe ZD is in parallel with the 3rd resistance R3, and the negative electrode of voltage stabilizing didoe ZD is connected with one end of the 3rd resistance R3, and the anode of voltage stabilizing didoe ZD is connected with the other end of the 3rd resistance R3.Thus, when 103 conducting of driving switch pipe, the drive singal that the 3rd resistance R3 and voltage stabilizing didoe ZD can make drive circuit 100 export keeps stable.
In addition, according to an embodiment of the present utility model, control signal input IN can received pulse width modulated PWM (Pulse Width Modulation, pulse width modulation) signal.That is, the exportable pwm signal of the controller of electric cooking pot is to control signal input IN.
As mentioned above, when the pwm signal that control signal input IN receives is low level, one NPN triode Q1 turns off, and then make the 2nd NPN triode Q2 conducting, the first PNP triode Q3 shutoff, the voltage of the grid of IGBT pipe raises gradually, IGBT pipe is by turning off trend conducting, and the voltage flow through between the collector electrode of IGBT pipe and emitter raises, and the On current slope of IGBT pipe is determined by the first adjusting resistance R4.When the pwm signal that control signal input IN receives is high level, one NPN triode Q1 conducting, and then make the 2nd NPN triode Q2 shutoff, the first PNP triode Q3 conducting, the voltage of the grid of IGBT pipe reduces gradually, IGBT pipe is tended to turn off by conducting, the voltage flow through between the collector electrode of IGBT pipe and emitter reduces, and the cut-off current slope of IGBT pipe is determined by the second adjusting resistance R5.Thus, control On current slope and cut-off current slope independently by the first adjusting resistance R4 and the second adjusting resistance R5, make the operating state of switching tube reach optimum state, improve the functional reliability of switching tube.
In addition, the utility model embodiment also proposed a kind of electric cooking pot.
Fig. 3 is the block diagram of the electric cooking pot according to the proposition of the utility model embodiment.As shown in Figure 3, this electric cooking pot 200 comprises the drive circuit 100 of above-mentioned electric cooking pot breaker in middle pipe.
Specifically, the exportable pwm control signal of controller of electric cooking pot is to the drive circuit 100 of switching tube, and the drive circuit 100 of switching tube can according to pwm control signal output drive signal to the switching tube of electric cooking pot, with the conducting of driving switch pipe and shutoff.
According to the electric cooking pot that the utility model proposes, by the drive circuit of above-mentioned electric cooking pot breaker in middle pipe, can independently the On current slope of control switch pipe and cut-off current slope, make the On current slope of switching tube and cut-off current slope inconsistent, and then the operating state of switching tube can be made to reach optimum state, improve the functional reliability of switching tube.
According to a specific embodiment of the present utility model, electric cooking pot 200 can be electromagnetic oven, IH electric cooker or IH electric pressure cooker.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In description of the present utility model, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary indirect contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment, revises, replace and modification in scope of the present utility model.
Claims (8)
1. a drive circuit for electric cooking pot breaker in middle pipe, is characterized in that, comprising:
Control signal input;
For driving described switching tube conducting and controlling the first driver element of the On current slope of described switching tube, described first driver element is connected with described control signal input;
Turn off for driving described switching tube and control the second driver element of the cut-off current slope of described switching tube, described second driver element is connected with described control signal input;
Wherein, described On current slope and described cut-off current slope are independently controlled by described first driver element of correspondence and described second driver element respectively.
2. the drive circuit of electric cooking pot breaker in middle pipe as claimed in claim 1, it is characterized in that, described first driver element comprises:
First resistance;
One NPN triode, the collector electrode of a described NPN triode is connected with default power supply by described first resistance, the grounded emitter of a described NPN triode, and the base stage of a described NPN triode is connected with described control signal input;
Second resistance, one end of described second resistance is connected with the base stage of a described NPN triode, and the other end of described second resistance is connected with described default power supply;
2nd NPN triode, the collector electrode of described 2nd NPN triode is connected with default power supply, and the base stage of described 2nd NPN triode is connected with the collector electrode of a described NPN triode; And
First adjusting resistance, one end of described first adjusting resistance is connected with the emitter of described 2nd NPN triode, and the other end of described first adjusting resistance is connected with the control end of described switching tube.
3. the drive circuit of electric cooking pot breaker in middle pipe as claimed in claim 2, it is characterized in that, described second driver element and described first driver element share described first resistance, a described NPN triode and described second resistance, and described second driver element also comprises:
First PNP triode, the grounded collector of described first PNP triode, the base stage of described first PNP triode is connected with the collector electrode of a described NPN triode;
Second adjusting resistance, one end of described second adjusting resistance is connected with the emitter of described first PNP triode, and the other end of described second adjusting resistance is connected with the control end of described switching tube.
4. the drive circuit of electric cooking pot breaker in middle pipe as claimed in claim 2 or claim 3, is characterized in that, also comprise:
3rd resistance, one end of described 3rd resistance is connected with the control end of described switching tube, the other end ground connection of described 3rd resistance; And
Voltage stabilizing didoe, described voltage stabilizing didoe and described 3rd resistor coupled in parallel, the negative electrode of described voltage stabilizing didoe is connected with one end of described 3rd resistance, and the anode of described voltage stabilizing didoe is connected with the other end of described 3rd resistance.
5. the drive circuit of electric cooking pot breaker in middle pipe as claimed in claim 1, it is characterized in that, described switching tube is insulated gate bipolar transistor IGBT.
6. the drive circuit of electric cooking pot breaker in middle pipe as claimed in claim 1, is characterized in that, described control signal input received pulse width modulated pwm signal.
7. an electric cooking pot, is characterized in that, comprises the drive circuit of the electric cooking pot breaker in middle pipe according to any one of claim 1-6.
8. electric cooking pot as claimed in claim 7, is characterized in that, described electric cooking pot is electromagnetic oven, IH electric cooker or IH electric pressure cooker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520079912.2U CN204392073U (en) | 2015-02-04 | 2015-02-04 | The drive circuit of electricity cooking pot and electric cooking pot breaker in middle pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520079912.2U CN204392073U (en) | 2015-02-04 | 2015-02-04 | The drive circuit of electricity cooking pot and electric cooking pot breaker in middle pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204392073U true CN204392073U (en) | 2015-06-10 |
Family
ID=53364753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520079912.2U Active CN204392073U (en) | 2015-02-04 | 2015-02-04 | The drive circuit of electricity cooking pot and electric cooking pot breaker in middle pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204392073U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107517047A (en) * | 2016-06-15 | 2017-12-26 | 佛山市顺德区美的电热电器制造有限公司 | The drive device and driving method of electromagnet and the cooking apparatus with the device |
| CN107959988A (en) * | 2016-10-17 | 2018-04-24 | 佛山市顺德区美的电热电器制造有限公司 | Drive circuit and cooking apparatus |
| WO2019075619A1 (en) * | 2017-10-16 | 2019-04-25 | 科棣姆（上海）电源科技有限公司 | Drive circuit for maintaining voltage balance of mos transistors in intermediate frequency plasma power supply |
| CN109687858A (en) * | 2018-12-26 | 2019-04-26 | 深圳航天东方红海特卫星有限公司 | A kind of satellite high voltage end PMOS driving circuit |
| CN110859014A (en) * | 2018-08-22 | 2020-03-03 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic heating equipment, electromagnetic heating device and control method thereof |
-
2015
- 2015-02-04 CN CN201520079912.2U patent/CN204392073U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107517047A (en) * | 2016-06-15 | 2017-12-26 | 佛山市顺德区美的电热电器制造有限公司 | The drive device and driving method of electromagnet and the cooking apparatus with the device |
| CN107517047B (en) * | 2016-06-15 | 2023-08-22 | 佛山市顺德区美的电热电器制造有限公司 | Driving device and driving method of electromagnet and cooking utensil with driving device |
| CN107959988A (en) * | 2016-10-17 | 2018-04-24 | 佛山市顺德区美的电热电器制造有限公司 | Drive circuit and cooking apparatus |
| CN107959988B (en) * | 2016-10-17 | 2024-01-30 | 佛山市顺德区美的电热电器制造有限公司 | Drive circuit and cooking utensil |
| WO2019075619A1 (en) * | 2017-10-16 | 2019-04-25 | 科棣姆（上海）电源科技有限公司 | Drive circuit for maintaining voltage balance of mos transistors in intermediate frequency plasma power supply |
| CN110859014A (en) * | 2018-08-22 | 2020-03-03 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic heating equipment, electromagnetic heating device and control method thereof |
| CN110859014B (en) * | 2018-08-22 | 2021-12-17 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic heating equipment, electromagnetic heating device and control method thereof |
| CN109687858A (en) * | 2018-12-26 | 2019-04-26 | 深圳航天东方红海特卫星有限公司 | A kind of satellite high voltage end PMOS driving circuit |
| CN109687858B (en) * | 2018-12-26 | 2023-06-20 | 深圳航天东方红海特卫星有限公司 | High-voltage end PMOS drive circuit for satellite |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204392073U (en) | The drive circuit of electricity cooking pot and electric cooking pot breaker in middle pipe | |
| CN102769959B (en) | LED light-dimming driving circuit | |
| CN203457342U (en) | Electromagnetic heating device and control circuit thereof | |
| CN205544904U (en) | Electromagnetic heating device and drive circuit of power switch pipe thereof | |
| CN205430651U (en) | Electromagnetic heating device and drive circuit of power switch pipe thereof | |
| CN204987538U (en) | Semiconductor cooler and tame electric installation | |
| CN205657861U (en) | Electromagnetic heating cooks device and drive circuit thereof | |
| CN204376697U (en) | The circuit of electric equipment and reduction Switching Power Supply stand-by power consumption | |
| CN204373006U (en) | Electricity cooking pot and control circuit thereof | |
| CN203457344U (en) | Electromagnetic heating device and control circuit thereof | |
| CN202889681U (en) | Control circuit for electromagnetic induction heating device | |
| CN210129974U (en) | Electromagnetic heating control circuit | |
| CN208434139U (en) | heating circuit and induction cooker | |
| CN207354241U (en) | The switch controlled circuit of electromagnetic heater | |
| CN103731945B (en) | Prevent control method and the control circuit of electromagnetic heater failure of oscillation | |
| CN204539512U (en) | Electromagnetic heater and the electromagnetic oven with it | |
| CN203457343U (en) | Electromagnetic heating device and control circuit thereof | |
| CN204391740U (en) | Household electrical appliance and the overcurrent and overvoltage protector for household electrical appliance | |
| CN212281045U (en) | Double-heater control circuit and cooking utensil with double heaters | |
| CN205540383U (en) | Electrifying protection circuit and induction cooker | |
| CN209120504U (en) | IGBT drive circuit and electromagnetism stove | |
| CN204539515U (en) | Electricity cooking pot and control circuit thereof | |
| CN108347237A (en) | The control method of electromagnetic heater | |
| CN109618440B (en) | Electromagnetic heating control circuit and control method | |
| CN204539107U (en) | Automatic keeping device controlled by switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |