CN104936326A - Magnetron power supply device used in microwave oven - Google Patents
Magnetron power supply device used in microwave oven Download PDFInfo
- Publication number
- CN104936326A CN104936326A CN201510394946.5A CN201510394946A CN104936326A CN 104936326 A CN104936326 A CN 104936326A CN 201510394946 A CN201510394946 A CN 201510394946A CN 104936326 A CN104936326 A CN 104936326A
- Authority
- CN
- China
- Prior art keywords
- circuit
- voltage
- power
- magnetron
- power supply
- 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.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Abstract
The invention belongs to the electrical equipment technology field and relates to a magnetron power supply device used in a microwave oven. An inductor and a capacitor are electrically connected so as to form an LC filter circuit. A current transformer is electrically connected to the LC filter circuit and a voltage detection circuit respectively. An original edge transmitting coil, a secondary edge receiving coil, an original edge compensation capacitor, a secondary edge compensation capacitor and a pick-up coil are electrically connected so as to form a resonance coupling network. A single chip microcomputer control circuit is connected to an auxiliary power supply, a comparison conditioning circuit, a given power control panel and a driving circuit in an electrical information mode respectively. An input terminal of a rectifier bridge is connected to a 220V alternating current input power supply. An output terminal of the rectifier bridge butts the LC filter circuit so as to form an input power supply unit. An input terminal of a voltage doubling rectifying circuit is electrically connected to the resonance coupling network. An output terminal of the voltage doubling rectifying circuit is connected to a magnetron in parallel so as to form the magnetron power supply apparatus. A main body circuit structure is novel, a principle is simple and reliable, output power is large, manufacturing cost is low, a service life is long, a market prospect is good and an application environment is friendly.
Description
Technical field:
The invention belongs to electrical devices technical field, relate to the magnetron for microwave oven supply unit of a kind of electric source topology of powering for the magnetron of microwave oven and power delivery control method, particularly a kind of Single switch pipe, bipolarity inversion delivery of electrical energy.
Background technology:
At present, traditional microwave oven power supply mostly is power frequency booster power, adopting Industrial Frequency Transformer boosting to obtain high voltage electric energy is that magnetron is powered, this type of power volume is large, Heavy Weight, efficiency are low, switching noise is large, and it is more serious to the pollution of electrical network, and conventional microwave oven electric power output voltage is non-adjustable, can only by changing power supply discontinuous operation Timing power; The discontinuous power supply mode of this power acquisition not only can affect the useful life of magnetron, but also the culinary art effect of food can be made to have a greatly reduced quality, and destroys the nutritional labeling of food.Along with the development of power electronic technology, the advantages such as frequency conversion resonance vibration converter is efficient with it, energy-conservation obtain development greatly and apply more and more widely.Now conventional controlled resonant converter has series resonant converter, parallel resonance converter, Series-Parallel Resonant Converter and more novel LLC resonant converter, the above converter is all just can realize on the basis of full-bridge or semi-bridge inversion topology, and its circuit structure more complicated, volume are relatively large, cost is high, reliability is low, it is cumbersome to control.Therefore, design that a circuit structure is simple, cost is low, can continuously for magnetron is powered and the development of the power supply of power adjustable to microwave oven is most important.
Summary of the invention:
The object of the invention is to overcome the defect existed in prior art, seek to design the supply unit and power delivery control method thereof that provide a kind of magnetron for microwave oven to power, novel Single switch pipe, bipolarity inverter topology and delivery of electrical energy thereof is adopted to control and voltage stabilizing technique, its switching tube realizes that no-voltage is opened, zero voltage turn-off controls, this power supply has less volume and weight, higher power density, the harmonic pollution to electrical network can be reduced, realize the continuously adjustabe of power output, improve culinary art effect and quality.
To achieve these goals, the agent structure of magnetron for microwave oven supply unit of the present invention comprises rectifier bridge, LC filter circuit, voltage detecting circuit, voltage doubling rectifing circuit, current transformer, accessory power supply, compares modulate circuit, given power control board, single chip machine controlling circuit, drive circuit, 220V alternating current input power supplying, former limit building-out capacitor, former edge emitting coil, secondary receiving coil, pick-up winding, secondary building-out capacitor, magnetron and switching tube; Inductance and electric capacity electrical connection composition LC filter circuit, for improving the power factor of circuit; First resistance and the second resistance compose in series voltage detecting circuit, for detecting through the filtered voltage of LC; Current transformer is electrically connected with LC filter circuit and voltage detecting circuit respectively, for detecting primary current; The detected value of the second ohmically partial pressure value summation current transformer sends into single chip machine controlling circuit by comparing modulate circuit, prevents the overvoltage of former limit, under-voltage and overcurrent; Based on two U-shaped magnet rings of mutual inductance being wound around former edge emitting coil and secondary receiving coil, former limit building-out capacitor, the secondary building-out capacitor of formation and forming resonance coupling network to the pick-up winding electrical connection that magnetron heater is powered, former limit building-out capacitor carries out resonance compensation to former edge emitting coil, and secondary building-out capacitor carries out resonance compensation to secondary receiving coil; The no-voltage realizing switching tube by arranging circuit parameter, switching frequency and duty ratio is opened and zero voltage turn-off; Single chip machine controlling circuit respectively with accessory power supply, compare modulate circuit, given power control board and drive circuit telecommunications and cease and be connected, single chip machine controlling circuit controls power delivery by fuzzy look-up table, drive singal is amplified, turning on and off of control switch pipe through overdrive circuit; The input of rectifier bridge connects 220V alternating current input power supplying, and the output docking LC filter circuit of rectifier bridge forms input power unit; The input of voltage doubling rectifing circuit is electrically connected with resonance coupling network, and the output of voltage doubling rectifing circuit also connects magnetron and forms magnetron power supply device.
220V alternating current input power supplying of the present invention converts the voltage of peak value 310V successively to after rectifier bridge, LC filter circuit, after coupled resonance network, voltage transitions be high-frequency ac voltage by single-tube contravariant and be applied to the two ends of former edge emitting coil, boosted by voltage by step-up transformer principle between former edge emitting coil and secondary receiving coil, the voltage at secondary receiving coil two ends converts the magnitude of voltage for magnetron to after voltage doubling rectifing circuit; Electric flux is provided according to the step-down of step-down transformer principle to the filament of magnetron between former edge emitting coil and pick-up winding; Voltage detecting circuit summation current transformer one is used from power output and the protection system safe operation of regulation and control power supply.
Given power control board of the present invention arranges 8 power and controls gear, realizes power output adjustment from big to small respectively.
The magnetron for microwave oven supply unit that the present invention relates to realizes the method for power delivery and control, comprises the following steps:
Switch on power, power on to circuit, single-chip microcomputer initialization in single chip machine controlling circuit, realize manual gear and automatic catch control, when carrying out manual gear control, be first set the operating time, judge the whether given power shelves of given power control board, if not given power shelves, standby, now can change the operating time, if given power shelves, enter operating state; After entering operating state, first judge the size of given power shelves, required switching frequency and duty ratio is determined by fuzzy look-up table by single chip machine controlling circuit, given duty ratio makes switching tube realize Zero-voltage soft switch, and export corresponding PWM drive waveforms, detect input voltage and current value simultaneously, if there is not overvoltage, under-voltage or overcurrent, then normally work, whether continuous detection there is overvoltage, under-voltage or overcurrent, after reaching operating time or force interrupt, the single-chip microcomputer in single chip machine controlling circuit exports PWM locking signal, and work completes; If there is overvoltage, under-voltage or overcurrent, then automatic alarm, single-chip microcomputer sends PWM locking signal, quits work; When carrying out automatic catch control, press the menu function key on microwave oven, perform corresponding function, after completing, single-chip microcomputer exports PWM locking signal, quits work; The menu function of microwave oven is designed by program staff, is divided into many power shelves different time to complete respectively a job according to the experience of life, to improve culinary art effect and quality.
The present invention compared with prior art, adopts Single switch pipe bipolarity inverter topology and two U-shaped magnet coils to realize power circuit, its main body circuit novel structure, principle is simple and reliable, and power output is large, and preparation cost is low, long service life, market prospects are good, and applied environment is friendly.
Accompanying drawing illustrates:
Fig. 1 is main body circuit structural principle schematic diagram of the present invention.
Fig. 2 is the voltage gain curve chart of transmitting power control of the present invention.
Fig. 3 is the magnetron power source Controlling Technology FB(flow block) that the present invention relates to.
Embodiment:
Below in conjunction with the drawings and specific embodiments, technical scheme of the present invention is described in more detail.
Embodiment:
The agent structure of magnetron for microwave oven supply unit described in the present embodiment comprises rectifier bridge 1, LC filter circuit 2, voltage detecting circuit 3, voltage doubling rectifing circuit 5, current transformer 6, accessory power supply 7, compares modulate circuit 8, given power control board 9, single chip machine controlling circuit 10, drive circuit 11,220V alternating current input power supplying 12, former limit building-out capacitor C
2, former edge emitting coil N
1, secondary receiving coil N
2, pick-up winding N
3, secondary building-out capacitor C
3, magnetron M and switching tube Q1; Inductance L
1with electric capacity C
1electrical connection composition LC filter circuit 2, for improving the power factor of circuit; First resistance R
1with the second resistance R
2compose in series voltage detecting circuit 3, for detecting through the filtered voltage of LC; Current transformer 6 is for detecting primary current; Second resistance R
2on the detected value of partial pressure value summation current transformer 6 send into single chip machine controlling circuit 10 by comparing modulate circuit 8, prevent the overvoltage of former limit, under-voltage and overcurrent; Based on the former edge emitting coil N two U-shaped magnet rings of mutual inductance being wound around formation
1with secondary receiving coil N
2, former limit building-out capacitor C
2, secondary building-out capacitor C
3and to the pick-up winding N that magnetron heater is powered
3electrical connection composition resonance coupling network 4, former limit building-out capacitor C
2to former edge emitting coil N
1carry out resonance compensation, secondary building-out capacitor C
3to secondary receiving coil N
2carry out resonance compensation; The no-voltage realizing switching tube Q1 by arranging circuit parameter, switching frequency and duty ratio is opened and zero voltage turn-off; Single chip machine controlling circuit 10 respectively with accessory power supply 7, compare modulate circuit 8, given power control board 9 and drive circuit 11 telecommunications and cease and be connected, single chip machine controlling circuit 10 controls power delivery by fuzzy look-up table, amplify drive singal through overdrive circuit 11, control switch pipe Q1 turns on and off; The input of rectifier bridge 1 connects 220V alternating current input power supplying 12, and the output docking LC filter circuit 2 of rectifier bridge 1 forms input power unit; The input of voltage doubling rectifing circuit 5 is electrically connected with resonance coupling network 4, and the output of voltage doubling rectifing circuit 5 also meets magnetron M and forms magnetron power supply device.
The 220V alternating current input power supplying 12 of the present embodiment converts the voltage of peak value 310V to after rectifier bridge 1, LC filter circuit 2, after coupled resonance network 4, voltage transitions is high-frequency ac voltage and is applied to former edge emitting coil N by single-tube contravariant
1two ends, former edge emitting coil N
1with secondary receiving coil N
2between by step-up transformer principle, voltage is boosted, the voltage at secondary receiving coil two ends converts to after voltage doubling rectifing circuit 5 can for the magnitude of voltage of magnetron M; Former edge emitting coil N
1with pick-up winding N
3between by step-down transformer principle, voltage is down to a few volt, provide electric flux to magnetron heater; Voltage detecting circuit 3 summation current transformer 6 one is used from power output and the protection system safe operation of regulation and control power supply.
The magnetron for microwave oven supply unit that the present embodiment relates to realizes the method for power delivery and control, comprises the following steps:
Switch on power, power on to circuit, single-chip microcomputer initialization in single chip machine controlling circuit 10, realize manual gear and automatic catch control, when carrying out manual gear control, be first set the operating time, judge the whether given power shelves of given power control board 9, if not given power shelves, standby, now can change the operating time, if given power shelves, enter operating state; After entering operating state, first judge the size of given power shelves, required switching frequency and duty ratio is determined by fuzzy look-up table by single chip machine controlling circuit 10, given duty ratio makes switching tube Q1 realize Zero-voltage soft switch, and export corresponding PWM drive waveforms, detect input voltage and current value simultaneously, if there is not overvoltage, under-voltage or overcurrent, then normally work, whether continuous detection there is overvoltage, under-voltage or overcurrent, after reaching operating time or force interrupt, the single-chip microcomputer in single chip machine controlling circuit 10 exports PWM locking signal, and work completes; If there is overvoltage, under-voltage or overcurrent, then automatic alarm, single-chip microcomputer sends PWM locking signal, quits work; When carrying out automatic catch control, press the menu function key on microwave oven, perform corresponding function, after completing, single-chip microcomputer exports PWM locking signal, quits work; The menu function of microwave oven is designed by program staff, is divided into many power shelves different time to complete respectively a job according to the experience of life, to improve culinary art effect and quality.
Given power control board described in the present embodiment arranges 8 power and controls gear, and realize power output adjustment from big to small respectively, Fig. 2 is voltage gain curve, from this curve, there is a switching frequency f
1system is made to export maximum voltage gain k
1, when frequency is adjusted to f
2time corresponding voltage gain be k
2, increase frequency successively to f
8can by voltage gain from k
1reduce to k
8, thus realize the object reducing power output; The switching frequency point that different power grades is corresponding different, utilizes fuzzy look-up table to realize the object of regulating power.
Claims (4)
1. a magnetron for microwave oven supply unit, is characterized in that agent structure comprises rectifier bridge, LC filter circuit, voltage detecting circuit, voltage doubling rectifing circuit, current transformer, accessory power supply, compares modulate circuit, given power control board, single chip machine controlling circuit, drive circuit, 220V alternating current input power supplying, former limit building-out capacitor, former edge emitting coil, secondary receiving coil, pick-up winding, secondary building-out capacitor, magnetron and switching tube; Inductance and electric capacity electrical connection composition LC filter circuit, for improving the power factor of circuit; First resistance and the second resistance compose in series voltage detecting circuit, for detecting through the filtered voltage of LC; Current transformer is electrically connected with LC filter circuit and voltage detecting circuit respectively, for detecting primary current; The detected value of the second ohmically partial pressure value summation current transformer sends into single chip machine controlling circuit by comparing modulate circuit, prevents the overvoltage of former limit, under-voltage and overcurrent; Based on two U-shaped magnet rings of mutual inductance being wound around former edge emitting coil and secondary receiving coil, former limit building-out capacitor, the secondary building-out capacitor of formation and forming resonance coupling network to the pick-up winding electrical connection that magnetron heater is powered, former limit building-out capacitor carries out resonance compensation to former edge emitting coil, and secondary building-out capacitor carries out resonance compensation to secondary receiving coil; The no-voltage realizing switching tube by arranging circuit parameter, switching frequency and duty ratio is opened and zero voltage turn-off; Single chip machine controlling circuit respectively with accessory power supply, compare modulate circuit, given power control board and drive circuit telecommunications and cease and be connected, single chip machine controlling circuit controls power delivery by fuzzy look-up table, drive singal is amplified, turning on and off of control switch pipe through overdrive circuit; The input of rectifier bridge connects 220V alternating current input power supplying, and the output docking LC filter circuit of rectifier bridge forms input power unit; The input of voltage doubling rectifing circuit is electrically connected with resonance coupling network, and the output of voltage doubling rectifing circuit also connects magnetron and forms magnetron power supply device.
2. magnetron for microwave oven supply unit according to claim 1, it is characterized in that described 220V alternating current input power supplying converts the voltage of peak value 310V successively to after rectifier bridge, LC filter circuit, after coupled resonance network, voltage transitions be high-frequency ac voltage by single-tube contravariant and be applied to the two ends of former edge emitting coil, boosted by voltage by step-up transformer principle between former edge emitting coil and secondary receiving coil, the voltage at secondary receiving coil two ends converts the magnitude of voltage for magnetron to after voltage doubling rectifing circuit; Electric flux is provided according to the step-down of step-down transformer principle to the filament of magnetron between former edge emitting coil and pick-up winding; Voltage detecting circuit summation current transformer one is used from power output and the protection system safe operation of regulation and control power supply.
3. magnetron for microwave oven supply unit according to claim 1, is characterized in that described given power control board arranges 8 power and controls gears, realizes power output adjustment from big to small respectively.
4. magnetron for microwave oven supply unit according to claim 3, is characterized in that adopting described device to realize the method for power delivery and control, comprises the following steps:
Switch on power, power on to circuit, single-chip microcomputer initialization in single chip machine controlling circuit, realize manual gear and automatic catch control, when carrying out manual gear control, be first set the operating time, judge the whether given power shelves of given power control board, if not given power shelves, standby, now can change the operating time, if given power shelves, enter operating state; After entering operating state, first judge the size of given power shelves, required switching frequency and duty ratio is determined by fuzzy look-up table by single chip machine controlling circuit, given duty ratio makes switching tube realize Zero-voltage soft switch, and export corresponding PWM drive waveforms, detect input voltage and current value simultaneously, if there is not overvoltage, under-voltage or overcurrent, then normally work, whether continuous detection there is overvoltage, under-voltage or overcurrent, after reaching operating time or force interrupt, the single-chip microcomputer in single chip machine controlling circuit exports PWM locking signal, and work completes; If there is overvoltage, under-voltage or overcurrent, then automatic alarm, single-chip microcomputer sends PWM locking signal, quits work; When carrying out automatic catch control, press the menu function key on microwave oven, perform corresponding function, after completing, single-chip microcomputer exports PWM locking signal, quits work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510394946.5A CN104936326B (en) | 2015-07-08 | 2015-07-08 | A kind of magnetron for microwave oven supply unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510394946.5A CN104936326B (en) | 2015-07-08 | 2015-07-08 | A kind of magnetron for microwave oven supply unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104936326A true CN104936326A (en) | 2015-09-23 |
| CN104936326B CN104936326B (en) | 2016-08-24 |
Family
ID=54123212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510394946.5A Active CN104936326B (en) | 2015-07-08 | 2015-07-08 | A kind of magnetron for microwave oven supply unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104936326B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106685101A (en) * | 2015-11-11 | 2017-05-17 | 佛山市顺德区美的电热电器制造有限公司 | Wireless power transmitting circuit and wireless power receiving circuit |
| CN106972755A (en) * | 2017-05-31 | 2017-07-21 | 青岛大学 | A kind of single tube both-end inversion isolated form DC DC booster converter control methods |
| CN106981994A (en) * | 2017-05-31 | 2017-07-25 | 青岛大学 | A kind of single tube both-end inversion isolated form DC DC booster converters |
| CN106993348A (en) * | 2017-05-31 | 2017-07-28 | 青岛大学 | A kind of microwave oven magnetic power control method with pull-up active clamp branch road |
| CN106992687A (en) * | 2017-05-10 | 2017-07-28 | 深圳戴普森新能源技术有限公司 | A kind of single tube Forward- flyback voltage multiplying rectifier power circuit |
| CN107070267A (en) * | 2017-04-05 | 2017-08-18 | 深圳戴普森新能源技术有限公司 | A kind of magnetron power source |
| CN107544338A (en) * | 2017-09-19 | 2018-01-05 | 广东美的厨房电器制造有限公司 | Control method, control device and the cooking apparatus of cooking apparatus |
| CN109633233A (en) * | 2018-12-21 | 2019-04-16 | 华为数字技术（苏州）有限公司 | A kind of Closed Loop Hall and detection method |
| CN110912280A (en) * | 2019-11-27 | 2020-03-24 | 北京交通大学 | Wireless power transmission system based on bidirectional voltage doubling circuit |
| CN111277223A (en) * | 2020-03-09 | 2020-06-12 | 东南大学 | High-order coupling network with interference suppression and application thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4628284A (en) * | 1985-06-03 | 1986-12-09 | North American Philips Corporation | High frequency high voltage power supply preventing simultaneous transistor conduction |
| CN1060756A (en) * | 1990-09-11 | 1992-04-29 | 松下电器产业株式会社 | Use the thermatron of inverter power supply |
| JPH07192863A (en) * | 1993-12-27 | 1995-07-28 | Matsushita Electric Ind Co Ltd | High-frequency heating device |
| CN1106122A (en) * | 1993-10-21 | 1995-08-02 | 株式会社东芝 | Electric range |
| CN2884465Y (en) * | 2006-01-23 | 2007-03-28 | 江龙兆 | High power switch power-source transformer |
| CN101232752A (en) * | 2008-01-18 | 2008-07-30 | 佛山市顺德区瑞德电子实业有限公司 | Microwave oven supply power soft switch high-frequency converter |
| CN103050227A (en) * | 2012-12-20 | 2013-04-17 | 中国科学院电工研究所 | High-frequency high-voltage transformer structure |
| CN203799825U (en) * | 2014-04-28 | 2014-08-27 | 美的集团股份有限公司 | Transformer |
| CN104575998A (en) * | 2013-10-11 | 2015-04-29 | 胜美达集团株式会社 | Coil part |
-
2015
- 2015-07-08 CN CN201510394946.5A patent/CN104936326B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4628284A (en) * | 1985-06-03 | 1986-12-09 | North American Philips Corporation | High frequency high voltage power supply preventing simultaneous transistor conduction |
| CN1060756A (en) * | 1990-09-11 | 1992-04-29 | 松下电器产业株式会社 | Use the thermatron of inverter power supply |
| CN1106122A (en) * | 1993-10-21 | 1995-08-02 | 株式会社东芝 | Electric range |
| JPH07192863A (en) * | 1993-12-27 | 1995-07-28 | Matsushita Electric Ind Co Ltd | High-frequency heating device |
| CN2884465Y (en) * | 2006-01-23 | 2007-03-28 | 江龙兆 | High power switch power-source transformer |
| CN101232752A (en) * | 2008-01-18 | 2008-07-30 | 佛山市顺德区瑞德电子实业有限公司 | Microwave oven supply power soft switch high-frequency converter |
| CN103050227A (en) * | 2012-12-20 | 2013-04-17 | 中国科学院电工研究所 | High-frequency high-voltage transformer structure |
| CN104575998A (en) * | 2013-10-11 | 2015-04-29 | 胜美达集团株式会社 | Coil part |
| CN203799825U (en) * | 2014-04-28 | 2014-08-27 | 美的集团股份有限公司 | Transformer |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106685101A (en) * | 2015-11-11 | 2017-05-17 | 佛山市顺德区美的电热电器制造有限公司 | Wireless power transmitting circuit and wireless power receiving circuit |
| CN107070267A (en) * | 2017-04-05 | 2017-08-18 | 深圳戴普森新能源技术有限公司 | A kind of magnetron power source |
| CN106992687A (en) * | 2017-05-10 | 2017-07-28 | 深圳戴普森新能源技术有限公司 | A kind of single tube Forward- flyback voltage multiplying rectifier power circuit |
| CN106972755A (en) * | 2017-05-31 | 2017-07-21 | 青岛大学 | A kind of single tube both-end inversion isolated form DC DC booster converter control methods |
| CN106981994A (en) * | 2017-05-31 | 2017-07-25 | 青岛大学 | A kind of single tube both-end inversion isolated form DC DC booster converters |
| CN106993348A (en) * | 2017-05-31 | 2017-07-28 | 青岛大学 | A kind of microwave oven magnetic power control method with pull-up active clamp branch road |
| CN106993348B (en) * | 2017-05-31 | 2020-06-30 | 青岛大学 | Microwave oven magnetron power supply control method with pull-up active clamping branch |
| CN107544338A (en) * | 2017-09-19 | 2018-01-05 | 广东美的厨房电器制造有限公司 | Control method, control device and the cooking apparatus of cooking apparatus |
| CN109633233A (en) * | 2018-12-21 | 2019-04-16 | 华为数字技术（苏州）有限公司 | A kind of Closed Loop Hall and detection method |
| CN110912280A (en) * | 2019-11-27 | 2020-03-24 | 北京交通大学 | Wireless power transmission system based on bidirectional voltage doubling circuit |
| CN111277223A (en) * | 2020-03-09 | 2020-06-12 | 东南大学 | High-order coupling network with interference suppression and application thereof |
| CN111277223B (en) * | 2020-03-09 | 2021-06-29 | 东南大学 | High-order coupling network with interference suppression and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104936326B (en) | 2016-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104936326A (en) | Magnetron power supply device used in microwave oven | |
| CN104936327B (en) | A kind of magnetron for microwave oven power transmission and control method | |
| CN103580301B (en) | A kind of wireless power transmission power control system and method | |
| CN102340251B (en) | Alternating-current to direct-current converter and control circuit thereof | |
| TWI459697B (en) | Dc/dc converter, power converter and control method thereof | |
| CN108736727B (en) | Power converter and control method thereof | |
| US20150195878A1 (en) | Led driver | |
| CA2607554A1 (en) | Electronic ballast having a flyback cat-ear power supply | |
| CN105811460A (en) | High-frequency test system of power module for electronic power transformer | |
| CN109587876B (en) | Self-adaptive lossless absorption bridgeless single-stage multi-output LED driving power supply | |
| CN108023411B (en) | Single-phase non-contact power supply system with power factor correction function | |
| CN201054545Y (en) | Middle power multi-channel output thin switch power supply | |
| CN107147298B (en) | A kind of microwave oven magnetic power supply device with pull-up active clamp branch | |
| CN106993348A (en) | A kind of microwave oven magnetic power control method with pull-up active clamp branch road | |
| CN112467998B (en) | Energy density adjustable multi-working mode plasma power supply | |
| CN203482094U (en) | Efficient power conversion device | |
| CN107134927B (en) | A kind of inductively coupled power transfer device with drop-down auxiliary switch | |
| CN103973123B (en) | A kind of Arc Welding Source System, control method and power module | |
| CN107154683B (en) | A kind of inductively coupled power transfer device and control method with pull-up auxiliary switch | |
| CN107148104A (en) | A kind of microwave oven magnetic supply unit and control method with drop-down active clamp branch road | |
| CN210490742U (en) | Direct current power supply of vacuum electronic device filament | |
| CN211240163U (en) | Stage lamp photoelectronic ballast | |
| CN201387456Y (en) | High-efficiency electro-magnetic cooker energy-saving burning device | |
| CN201663545U (en) | Alternating-current boost power factor correction circuit | |
| CN116131479B (en) | Bidirectional resonance wireless charging system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |