CN101232753B - Electromagnetic stove quasi-resonance soft switch high-frequency converter - Google Patents
Electromagnetic stove quasi-resonance soft switch high-frequency converter Download PDFInfo
- Publication number
- CN101232753B CN101232753B CN2008100259190A CN200810025919A CN101232753B CN 101232753 B CN101232753 B CN 101232753B CN 2008100259190 A CN2008100259190 A CN 2008100259190A CN 200810025919 A CN200810025919 A CN 200810025919A CN 101232753 B CN101232753 B CN 101232753B
- Authority
- CN
- China
- Prior art keywords
- switch element
- igbt pipe
- pipe switch
- circuit
- inductance
- 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
- 238000004804 winding Methods 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 239000003990 capacitor Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
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
- 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
Landscapes
- Rectifiers (AREA)
- Inverter Devices (AREA)
Abstract
The invention relates to a quasi-resonant soft-switch high-frequency converter for an electromagnetic oven. The invention comprises an AC supply, a filter circuit, a rectification circuit, a first electrical inductance (L1), a first capacitance (C1), a second electrical inductance (L2), a first IGBT pipe switch element (Q1), a second IGBT pipe switch element (Q2), a third electrical inductance (L3), a second capacitance (C2), a third IGBT pipe switch element (Q3), a third capacitance (C3), a leakage transformer (T) and a rectification circuit of semi-wave voltage multiplier (DU). The inventioncan realize zero current turning-on or turning-off of a switch power tube in a wide output power scope, the power loss of the circuit switch can be minimized, the stable high voltage source can be output and the output power can be well adjusted. In addition, because of the compensation resonance effect of series capacity of the conversion transducer, the direct current component of the high frequency current that passes through the actuating coil is zero; the converting range of the zero current soft-switch becomes wider, the work efficiency is higher and constant-frequency operation can becarried out.
Description
Technical field:
The present invention is a kind of electromagnetic stove quasi-resonance soft switch high-frequency converter, belongs to the renovation technique of electromagnetic stove quasi-resonance soft switch high-frequency converter.
Background technology:
Advantage such as Switching Power Supply has the energy conversion efficiency height, volume is little, in light weight, control precision is high and rapidity is good, in low power range, replaced linear adjustment power supply basically, and rapidly in high-power scope advance, replaced the Thyristor Controlled rectifier power source to a great extent.For converter used in the Switching Power Supply, used in the past hard switching technology can not satisfy the growing demand to power source performance, under the hard switching condition, because the electric current and the voltage that change at a high speed on switching device in the switching process have brought very big loss, efficient is not high, noise is also big, and have electromagnetic interference, and its frequency that can bear can not be very high, development along with demand, need improve the frequency of Switching Power Supply work with soft switch technique, thereby overcome above-mentioned shortcoming.All the time, in the middle of DC-DC soft switch transducer application technology, Zero voltage transition is widely adopted because its used passive device is less.But, based on the electric capacity quasi-resonance Zero voltage transition converter of switching tube parallel connection, with input current much relations are arranged, this characteristic has considerable restraint to the scope of soft switch, simultaneously because the existence of tail current, some bipolarity switching tube, unstable sometimes under the Zero voltage transition condition such as the IGBT pipe.
Summary of the invention:
The objective of the invention is to consider the problems referred to above and provide a kind of switching tube that makes in zero current, to turn on and off, enlarge the electromagnetic stove quasi-resonance soft switch high-frequency converter of the transformation range of soft switch.
Technical scheme of the present invention is: include AC power, first filter circuit, rectification circuit, first inductance, first electric capacity, second inductance, the one IGBT manages switch element, the 2nd IGBT manages switch element, the 3rd inductance, second electric capacity, the 3rd IGBT manages switch element, the 3rd electric capacity, leakage transformer, the full wave voltage multiplier rectification circuit, wherein AC power is added to the DC filter circuit that is made of first inductance and first capacitances in series by first filter circuit and the rectification circuit voltage after with rectification, the direct voltage of DC filter circuit output imposes on the series circuit of first coil windings that comprises the 3rd electric capacity and leakage transformer T, the one IGBT pipe switch element and the series connection of the 2nd IGBT pipe switch element, the 3rd IGBT pipe switch element is in parallel with IGBT pipe switch element, second inductance and the series connection of IBGT pipe switch element, the 3rd inductance and the series connection of the 2nd IGBT pipe switch element, second electric capacity and the series connection of the 3rd IGBT pipe switch element, comprise that the series circuit that first coil windings of the 3rd electric capacity and leakage transformer forms is in parallel with the series circuit of the 2nd IGBT pipe switch element and the 3rd inductance composition, the input of full wave voltage multiplier rectification circuit is connected with the output of second coil windings of leakage transformer, the output of full wave voltage multiplier rectification circuit is connected with anode with the negative electrode of electromagnetic oven magnetron M respectively, and the output of the tertiary coil winding of leakage transformer is connected with the negative electrode of electromagnetic oven magnetron.
Above-mentioned IGBT pipe switch element, the 2nd IGBT pipe switch element, the 3rd IGBT pipe switch element fly-wheel diode all in parallel.
Above-mentioned IGBT pipe switch element, the 2nd IGBT pipe switch element, the 3rd IGBT pipe switch element with by preset frequency generation square wave, also the control Driver Circuit by drive signal control switch pipe break-make is connected.
Above-mentioned first filter circuit is the electromagnetic interface filter circuit.
The present invention is owing to adopted the technical scheme of zero-current soft switch PWM control, so it can realize the zero current turning-on or the shutoff of switching power tube in very wide output power range, thereby make the contactor power loss drop to minimum, can export stable high voltage source, and power output is well regulated.Converter of the present invention is compared with other converters of the same type, also has following several outstanding feature: the one, because the compensation resonance effect of series capacitance makes that the DC component of the high-frequency current by actuating coil is zero; The 2nd, the conversion range of zero-current soft switch becomes wideer; The 3rd, the operating efficiency of this converter is than higher; The 4th, can carry out the constant frequency operation.The present invention is that a kind of design is ingenious, function admirable, convenient and practical electromagnetic stove quasi-resonance soft switch high-frequency converter.
Description of drawings:
Fig. 1 is circuit theory diagrams of the present invention;
Fig. 2 is the oscillogram of PWM gate drive pulse voltage of the present invention;
Fig. 3 is the schematic diagram that concerns between the duty ratio of the present invention's control break-make of input power and IGBT pipe switch element when working as fixed-frequency;
Fig. 4 is an operating efficiency schematic diagram of the present invention.
Embodiment:
Embodiment:
Circuit theory diagrams of the present invention as shown in Figure 1, include AC power AC, first filter circuit, rectification circuit, first inductance L 1, first capacitor C 1, second inductance L 2, the one IGBT pipe switch element Q1, the 2nd IGBT pipe switch element Q2, the 3rd inductance L 3, second capacitor C 2, the 3rd IGBT pipe switch element Q3, the 3rd capacitor C 3, leakage transformer T, full wave voltage multiplier rectification circuit DU, wherein AC power AC is added to the DC filter circuit that is made of first inductance L 1 and 1 series connection of first capacitor C by first filter circuit and the rectification circuit voltage after with rectification, the direct voltage of DC filter circuit output imposes on the series circuit of the first coil windings N1 that comprises the 3rd capacitor C 3 and leakage transformer T, the one IGBT pipe switch element Q1 and the 2nd IGBT pipe switch element Q2 series connection, the 3rd IGBT pipe switch element Q3 is in parallel with IGBT pipe switch element Q1, second inductance L 2 and IBGT pipe switch element Q1 series connection, the 3rd inductance L 3 and the 2nd IGBT pipe switch element Q2 series connection, second capacitor C 2 and the 3rd IGBT pipe switch element Q3 series connection, comprise that the series circuit that the first coil windings N1 of the 3rd capacitor C 3 and leakage transformer T forms is in parallel with the series circuit of the 2nd IGBT pipe switch element Q2 and the 3rd inductance L 3 compositions, the input of full wave voltage multiplier rectification circuit DU is connected with the output of the second coil windings N2 of leakage transformer T, the output of full wave voltage multiplier rectification circuit DU is connected with anode with the negative electrode of electromagnetic oven magnetron M respectively, and the output of the tertiary coil winding N3 of leakage transformer T is connected with the negative electrode of electromagnetic oven magnetron M.Above-mentioned IGBT pipe switch element Q1, the 2nd IGBT pipe switch element Q2, the 3rd IGBT pipe switch element Q3 with by preset frequency generation square wave, also the control Driver Circuit by drive signal control switch pipe break-make is connected.
In the present embodiment, above-mentioned IGBT pipe switch element Q1, the 2nd IGBT pipe switch element Q2, the 3rd IGBT pipe switch element Q3 fly-wheel diode all in parallel.Above-mentioned first filter circuit is the electromagnetic interface filter circuit.
Operation principle of the present invention is as follows: effective value is that 220V, frequency are that the AC AC power of 50HZ is by the electromagnetic interface filter circuit, pass through rectification circuit again, voltage after the rectification is added to the DC filter circuit that is made of first inductance L 1 and 1 series connection of first capacitor C, and this time, the AC alternating voltage was made into the DC direct voltage.The DC direct voltage imposes on the series circuit of the first coil windings N1 that comprises the 3rd capacitor C 3 and leakage transformer T.In full wave voltage multiplier rectification circuit DU, the high AC voltage output transform that is produced among the second coil windings N2 with leakage transformer T is high dc voltage, it is added between the negative electrode and anode of magnetron M then.The tertiary coil winding N3 of leakage transformer T offers electric current on the negative electrode of magnetron M.Three IGBT pipe switch elements are controlled by the control Driver Circuit of outside.Drive circuit produces square wave with preset frequency, and drive signal is sent to IGBT pipe switch element Q1 and the 2nd IGBT pipe switch element Q2 and the 3rd IGBT pipe switch element Q3, the break-make of coming the control switch pipe.
Add an electromagnetic interface filter circuit after the AC AC power, its effect has two: the one, and the pollution that the elimination electrical network transmits.The 2nd, prevent that the high-frequency pulse voltage that converter produces from sealing in electrical network, disturbs other electric equipments.
Zero-current soft switch PWM control skill that multi resonant of the present invention has shaken the high-frequency converter using, master control pipe of the present invention are IGBT pipe switch element Q1 and the 2nd IGBT pipe switch element Q2, and attached keyholed back plate is the 3rd IGBT pipe switch element Q3.Second capacitor C 2 is auxiliary resonant capacitance, and second inductance L 2 and the 3rd inductance L 3 realize the buffer inductance of zero current break-makes in order to make two master switch pipes.The 3rd capacitor C 3 plays the effect of power factor compensation.
The multi resonant of the present invention PWM control strategy of high-frequency converter by a constant frequency that shake under the mode of zero-current soft switch, can carry out continuous adjusting control to ac input power.Fig. 3 shows the oscillogram of PWM gate drive pulse voltage.The PWM control of constant frequency is based on the ON time of interior IGBT pipe switch element Q1 of one-period and the 3rd IGBT pipe switch element Q3, thereby makes this converter carry out continuous adjusting to power output.The ON time of the one IGBT pipe switch element Q1 can change, but the ON time of the 3rd IGBT pipe switch element Q3 is set to constant, so the time of this two switching tubes conducting is simultaneously just determined by the whole ON time of IGBT pipe switch element.And then under constant frequency,, can realize the continuous adjusting of power output by changing the duty ratio of drive signal.
Fig. 3 shows the relation between the duty ratio of the control break-make of input power and IGBT pipe switch element when fixed-frequency.In switched at high frequency device of the present invention, can regulate continuously in the input power of the mode down-converter of zero-current soft switch, be approximately from 0.5KW to 2.4KW.The opereating specification of the soft switch of this transducer also is bigger, duty ratio from 0.15 to 0.35.
Fig. 4 shows the operating efficiency of converter of the present invention.Under specified output condition, the actual efficiency of converter of the present invention is greatly about 96%.Because during the work of the soft dc-dc converter of high-frequency of the present invention, the operation of a soft switch can be at minimum output power, duty ratio is to finish under 0.16 the condition, so the actual efficiency that power transforms can remain on 84% fully.
Claims (4)
1. electromagnetic stove quasi-resonance soft switch high-frequency converter, it is characterized in that including AC power (AC), first filter circuit, rectification circuit, first inductance (L1), first electric capacity (C1), second inductance (L2), the one IGBT manages switch element (Q1), the 2nd IGBT manages switch element (Q2), the 3rd inductance (L3), second electric capacity (C2), the 3rd IGBT manages switch element (Q3), the 3rd electric capacity (C3), leakage transformer (T), full wave voltage multiplier rectification circuit (DU), wherein AC power (AC) is added to the DC filter circuit that is made of first inductance (L1) and first electric capacity (C1) series connection by first filter circuit and the rectification circuit voltage after with rectification, the direct voltage of DC filter circuit output imposes on the series circuit of first coil windings (N1) that comprises the 3rd electric capacity (C3) and leakage transformer T, the one IGBT pipe switch element (Q1) and the 2nd IGBT pipe switch element (Q2) series connection, the 3rd IGBT pipe switch element (Q3) is in parallel with IGBT pipe switch element (Q1), second inductance (L2) and IGBT pipe switch element (Q1) series connection, the 3rd inductance (L3) and the 2nd IGBT pipe switch element (Q2) series connection, second electric capacity (C2) and the 3rd IGBT pipe switch element (Q3) series connection, comprise that the series circuit that first coil windings (N1) of the 3rd electric capacity (C3) and leakage transformer (T) forms is in parallel with the series circuit of the 2nd IGBT pipe switch element (Q2) and the 3rd inductance (L3) composition, the input of full wave voltage multiplier rectification circuit (DU) is connected with the output of second coil windings (N2) of leakage transformer (T), the output of full wave voltage multiplier rectification circuit (DU) is connected with anode with the negative electrode of electromagnetic oven magnetron (M) respectively, and the output of the tertiary coil winding (N3) of leakage transformer (T) is connected with the negative electrode of electromagnetic oven magnetron (M).
2. electromagnetic stove quasi-resonance soft switch high-frequency converter according to claim 1 is characterized in that above-mentioned IGBT pipe switch element (Q1), the 2nd IGBT pipe switch element (Q2), the 3rd IGBT pipe switch element (Q3) fly-wheel diode all in parallel.
3. electromagnetic stove quasi-resonance soft switch high-frequency converter according to claim 1, it is characterized in that above-mentioned IGBT pipe switch element (Q1), the 2nd IGBT pipe switch element (Q2), the 3rd IGBT pipe switch element (Q3) with by preset frequency generation square wave, also the control Driver Circuit by drive signal control switch pipe break-make is connected.
4. electromagnetic stove quasi-resonance soft switch high-frequency converter according to claim 1 is characterized in that above-mentioned first filter circuit is the electromagnetic interface filter circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100259190A CN101232753B (en) | 2008-01-18 | 2008-01-18 | Electromagnetic stove quasi-resonance soft switch high-frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100259190A CN101232753B (en) | 2008-01-18 | 2008-01-18 | Electromagnetic stove quasi-resonance soft switch high-frequency converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101232753A CN101232753A (en) | 2008-07-30 |
| CN101232753B true CN101232753B (en) | 2010-06-16 |
Family
ID=39898850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100259190A Active CN101232753B (en) | 2008-01-18 | 2008-01-18 | Electromagnetic stove quasi-resonance soft switch high-frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101232753B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101426309B (en) * | 2008-11-14 | 2011-04-20 | 张军才 | Electric power circuit for quasi-resonance electromagnetic water heater |
| DE102012215264B4 (en) | 2012-08-28 | 2015-01-15 | Continental Automotive Gmbh | Circuit arrangement for inductive heating of a fuel injection valve |
| CN103208849B (en) * | 2013-04-28 | 2016-03-30 | 长城汽车股份有限公司 | A kind of charging device |
| CN105024554B (en) * | 2014-04-22 | 2017-07-28 | 吕锦山 | Inverter circuit and rectifier circuit with soft switching and capable of reducing current ripple |
| CN106136844B (en) * | 2015-04-07 | 2018-07-17 | 佛山市顺德区美的电热电器制造有限公司 | Cooking apparatus and electric heater unit for cooking apparatus |
| CN106332338B (en) * | 2015-07-01 | 2022-10-25 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic heating system and driving device and method thereof |
| CN113194563A (en) * | 2021-05-18 | 2021-07-30 | 北京中水科海利工程技术有限公司 | Microwave heating device and heating method for asphalt concrete cold joint |
-
2008
- 2008-01-18 CN CN2008100259190A patent/CN101232753B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101232753A (en) | 2008-07-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111490683B (en) | Trajectory control method for double-transformer series resonance double-active bridge DC-DC converter topology | |
| CN101232753B (en) | Electromagnetic stove quasi-resonance soft switch high-frequency converter | |
| CN101562399B (en) | Full-bridge double-output direct current-alternating current converter | |
| CN205883057U (en) | Ware drive power supply is used to microwave based on LCC resonance network | |
| CN107968471B (en) | LCLC resonance circuit, wide-range constant-power output direct-current charger and control method | |
| CN105119497A (en) | Wide input range dual-bridge LLC resonant converter | |
| CN106787757B (en) | A kind of CLTCL resonance DC converter | |
| CN101860217A (en) | ZVS full-bridge three-level converter with bilateral buffer network | |
| CN101604916B (en) | Zero voltage switch full bridge DC converter based on pi-type auxiliary network | |
| CN114337344A (en) | Control method based on self-adaptive hybrid rectification multi-switch resonant LLC converter | |
| CN201259535Y (en) | A DC electric power used for large current transducer check | |
| CN109302078B (en) | DC-DC switching power supply based on synchronous rectification mode | |
| CN200990558Y (en) | Soft switch zero ripple bidirectional DC/DC non-isolating converter | |
| CN102412726A (en) | Full-bridge soft switch medical X-ray machine high-voltage direct-current power supply | |
| CN201409088Y (en) | Full-bridge twin-output direct current to direct current converter | |
| CN101232752B (en) | Microwave oven supply power soft switch high-frequency converter | |
| Zheng et al. | LLC and LCC analysis and comparison of resonant converters | |
| CN203482094U (en) | Efficient power conversion device | |
| CN106787756B (en) | A kind of CL-FT-CL resonance DC converter | |
| CN109546861B (en) | Method for dynamically adjusting voltage conversion rate of LLC resonant cavity | |
| CN104779807A (en) | LLC resonance transducer applied to distributed power source | |
| CN110224605B (en) | Full-bridge conversion circuit | |
| Yan et al. | An efficient isolated bi-directional half bridge resonant DC/DC converter | |
| CN109194135A (en) | A kind of adaptive efficiency optimization method of resonant state adjustable type power inverter | |
| CN108667305B (en) | The transformer flux density control method of series resonant full bridge converter |
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 | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGDONG REAL-DESIGN INTELLIGENT TECHNOLOGY CO., Free format text: FORMER NAME: FOSHAN SHUNDE REALDESIGN ELECTRONICS INDUSTRY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 528300 Shunde, Guangdong, Daliang Industrial Park, Fengxiang, Xiang Xiang Road, No. 1 Patentee after: GUANGDONG REAL-DESIGN INTELLIGENT TECHNOLOGY Co.,Ltd. Address before: 528300 Guangdong city of Foshan province Daliang Huaye Industrial Zone Fengxiang Road No. 1 Patentee before: FOSHAN SHUNDE REAL DESIGN ELECTRONICS IND CO.,LTD. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Electromagnetic stove quasi-resonance soft switch high-frequency converter Effective date of registration: 20170720 Granted publication date: 20100616 Pledgee: Shunde Guangdong rural commercial bank Limited by Share Ltd. Pledgor: GUANGDONG REAL-DESIGN INTELLIGENT TECHNOLOGY Co.,Ltd.|FOSHAN REAL-DESIGN SOFTWARE TECHNOLOGY Co.,Ltd. Registration number: 2017440000053 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200921 Granted publication date: 20100616 Pledgee: Shunde Guangdong rural commercial bank Limited by Share Ltd. Pledgor: GUANGDONG REAL-DESIGN INTELLIGENT TECHNOLOGY Co.,Ltd. Registration number: 2017440000053 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A quasi resonant soft switching high-frequency converter for induction cookers Effective date of registration: 20230725 Granted publication date: 20100616 Pledgee: Shunde Guangdong rural commercial bank Limited by Share Ltd. Pledgor: GUANGDONG REAL-DESIGN INTELLIGENT TECHNOLOGY Co.,Ltd. Registration number: Y2023980049766 |