CN103687116A - Digital FM (Frequency Modulation) PLL (Phase-locked Loop) full-bridge serial resonance electromagnetic induction heating power supply - Google Patents
Digital FM (Frequency Modulation) PLL (Phase-locked Loop) full-bridge serial resonance electromagnetic induction heating power supply Download PDFInfo
- Publication number
- CN103687116A CN103687116A CN201310503968.1A CN201310503968A CN103687116A CN 103687116 A CN103687116 A CN 103687116A CN 201310503968 A CN201310503968 A CN 201310503968A CN 103687116 A CN103687116 A CN 103687116A
- Authority
- CN
- China
- Prior art keywords
- full
- bridge
- circuit
- phase
- 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.)
- Pending
Links
Images
Landscapes
- General Induction Heating (AREA)
Abstract
The invention discloses a digital FM PLL full-bridge serial resonance electromagnetic induction heating power supply which comprises a filter, a resonance full-bridge output and an FM AM (Amplitude Modulation) control. A band pass filter is connected with a three-phase power frequency power supply, the voltage of the filtered three-phase power frequency power supply is connected to the resonance full-bridge output, and the resonance full-bridge output is connected with the FM AM control; the dc voltage output by a three/single-phase rectification circuit D is applied to a filter circuit with a radiation preventive common-mode inductor, and then the resonance full-bridge output provides super-audio power for a resonant load, and a resonant capacitor of the resonance full-bridge output is connected with a heating coil. The power supply in a high induction level provided by the invention can overcome disadvantages in the prior art, normal work of the power supply can be ensured under the condition that the distance between a heated object and the heating coil changes for more than 100mm during work, and power of the power supply timely changes with the distance.
Description
Technical field
The present invention relates to electronic technology field, specifically belong to a kind of frequency-shift keying PLL frequency sweep, the series connection full-bridge electromagnetic induction heating power supply of PLC monitoring.
Background technology
At present electromagnetic induction heating is international and be domesticly widely used, and such as civilian electromagnetic stove, and industry, oil, chemical industry etc., sees the occasion of heating, all finally has electromagnetic induction heating to replace.And during this work carried out, reason is exactly: the induction heating heat efficiency is high, energy-saving and environmental protection.But in existing market, induction heating equipment is difficult to realize normal heating because of various reasons in engineering, such as the distance of heated object is unfixing, the variation being in operation, throwing pot in picture cooking, the decentraction of industry cylinder, motion of stir-fry equipment etc., causes induction heating equipment laser heating normally, even cannot normal heating.This just makes induction heating be subject to certain restrictions in application.
Summary of the invention
The object of this invention is to provide frequency-shift keying PLL full-bridge series resonance electromagnetic induction heating power supply, the deficiencies in the prior art have been overcome, providing a kind of has more than 100mm change in the situation that at work in distance between heated object and heater coil, can also guarantee normal work, moving rate is followed the tracks of high-level induction heating power timely with change of distance; Power supply is can be under the low temperature of subzero 40 ℃ and severe operational environment normal starts operation, uses reliable.
The technical solution used in the present invention is as follows:
Frequency-shift keying PLL full-bridge series resonance electromagnetic induction adds voltage source, comprise single-phase or Three-phase electric-wave filter, the output of resonance full-bridge, FMAM is controlled, by band pass filter, be connected with single-phase or three-phase alternating current power frequency supply, through filtered single-phase or three-phase alternating current power-frequency voltage access resonance full-bridge output, the output of resonance full-bridge and FMAM control connection, the filter circuit that the direct voltage of the single-phase or three-phase bridge rectification circuit D output of resonance full-bridge output is added on radiation proof common mode inductance provides superaudio electric energy by the output of resonance full-bridge to resonant load again, the resonant capacitance of resonance full-bridge output connects heater coil, heater coil connects respectively phase-locked loop circuit and the coil temperature control of FMAM control and passes the signal on FMAM control PLC.
Described resonance full-bridge output is connected into by single-phase or three phase rectifier D, common mode inductance L1, full-bridge IGBT, resonant capacitance.
The oscillating circuit that described FMAM is controlled, the superaudio signal access PLC that is controlled lower vibration by voltage-frequency conversion circuit is provided, by PLC unit, send control command, by interface circuit, to display circuit, send state display, to triggering output interface circuit, provide superaudio signal simultaneously, under drive control circuit, by drive circuit, drive IGBT switch, drive circuit connects absorbing circuit, and PLC is connected with coil temperature control circuit, phase-locked loop circuit.
Described band pass filter carries FMAM control PLC, the output of resonance full-bridge to be transported to FMAM control PLC by voltage control, IGBT temperature signal by current controling signal.
Main control part in described power supply, is provided with two and half adjustable potentiometers, RV1 and RV2, and a pipe complete machine power is adjusted, and a distance adjustment of managing between heater coil and heated object namely regulates the coupling pine of phase-locked loop with tight.
Compared with the prior art, beneficial effect of the present invention is as follows:
The invention provides a kind ofly has more than 100mm change in the situation that at work in distance between heated object and heater coil, can also guarantee normal work, frequency is followed the tracks of high-level induction heating power timely with change of distance, power supply is can be under the low temperature of subzero 40 ℃ and severe operational environment normal starts operation, uses reliable.
Accompanying drawing explanation
Fig. 1 is structure of block diagram schematic diagram of the present invention;
Fig. 2 is electrical block diagram of the present invention.
Embodiment
Referring to accompanying drawing, frequency-shift keying PLL full-bridge series resonance electromagnetic induction heating power supply, comprise single-phase or Three-phase electric-wave filter 1, resonance full-bridge output 2, FMAM controls 3, by band pass filter, be connected with three-phase alternating current power frequency supply, through the output of filtered three-phase alternating current power-frequency voltage access resonance full-bridge, the output of resonance full-bridge and FMAM control connection, the filter circuit that the direct voltage of the three-phase bridge rectification circuit D output of resonance full-bridge output is added on radiation proof common mode inductance provides superaudio electric energy by the output of resonance full-bridge to resonant load again, the resonant capacitance of resonance full-bridge output connects heater coil, heater coil connects respectively phase-locked loop circuit and the coil temperature of FMAM control and controls and pass the signal on FMAM control PLC, described resonance full-bridge output is by three-phase or single-phase rectifier D, common mode inductance L1, full-bridge IGBT, resonant capacitance is connected into.The oscillating circuit that described FMAM is controlled, the superaudio signal access PLC that is controlled lower vibration by voltage-frequency conversion circuit is provided, by PLC unit, send control command, by interface circuit, to display circuit, send state display, to triggering output interface circuit, provide superaudio signal simultaneously, under drive control circuit, by drive circuit, drive IGBT switch, drive circuit connects absorbing circuit, and PLC is connected with coil temperature control circuit, phase-locked loop circuit.Described band pass filter carries FMAM control PLC, the output of resonance full-bridge to be transported to FMAM control PLC by voltage control, IGBT temperature signal by current controling signal.Main control part in described power supply, is provided with two and half adjustable potentiometers, RV1 and RV2, and a pipe complete machine power is adjusted, and a distance adjustment of managing between heater coil and heated object namely regulates the coupling pine of phase-locked loop with tight.
Claims (4)
1. frequency-shift keying PLL full-bridge series resonance electromagnetic induction heating power supply, comprises that single-phase or Three-phase electric-wave filter, the output of resonance full-bridge, FMAM control; By band pass filter, be connected with three-phase or single phase alternating current (A.C.) power frequency supply, through filtered direct voltage access resonance full-bridge output circuit, the output of resonance full-bridge and FMAM control connection.It is characterized in that: full-bridge output circuit links with each control circuit by instrument transformer master control phase-locked loop circuit and PLC, thereby form the adjustable heating power supply with very large feature of distance between heater coil and heated object.
2. frequency-shift keying PLL full-bridge series resonance electromagnetic induction heating power supply according to claim 1, is characterized in that: described resonance full-bridge output is connected into by three-phase or single-phase rectifier D, common mode inductance L1, full-bridge IGBT, resonant capacitance.
3. frequency-shift keying PLL full-bridge series resonance electromagnetic induction heating power supply according to claim 1 and 2, it is characterized in that: the oscillating circuit that described FMAM is controlled, the superaudio signal access PLC that is controlled lower vibration by voltage-frequency conversion circuit is provided, by PLC unit, send control command, by interface circuit, to display circuit, send state display, to triggering output interface circuit, provide superaudio signal simultaneously, under drive control circuit, by drive circuit, drive IGBT switch, drive circuit connects absorbing circuit, PLC and coil temperature control circuit, phase-locked loop circuit is connected.
4. frequency-shift keying PLL full-bridge series resonance electromagnetic induction heating power supply according to claim 3, is characterized in that: described band pass filter carries FMAM control PLC, the output of resonance full-bridge to be transported to FMAM control PLC by voltage control, IGBT temperature signal by current controling signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310503968.1A CN103687116A (en) | 2013-10-23 | 2013-10-23 | Digital FM (Frequency Modulation) PLL (Phase-locked Loop) full-bridge serial resonance electromagnetic induction heating power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310503968.1A CN103687116A (en) | 2013-10-23 | 2013-10-23 | Digital FM (Frequency Modulation) PLL (Phase-locked Loop) full-bridge serial resonance electromagnetic induction heating power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103687116A true CN103687116A (en) | 2014-03-26 |
Family
ID=50323043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310503968.1A Pending CN103687116A (en) | 2013-10-23 | 2013-10-23 | Digital FM (Frequency Modulation) PLL (Phase-locked Loop) full-bridge serial resonance electromagnetic induction heating power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103687116A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104349521A (en) * | 2014-09-05 | 2015-02-11 | 湘潭市南冶中频高新技术开发有限公司 | IGBT (Insulated Gate Bipolar Translator) half-bridge inverter medium-frequency - ultrasonic-frequency - high-frequency induction heating power supply |
| CN107135564A (en) * | 2017-07-02 | 2017-09-05 | 中国计量大学 | A kind of pulsed induction heating power of the digital frequency-tracking of modified |
| CN108601123A (en) * | 2017-11-13 | 2018-09-28 | 成都航空职业技术学院 | A kind of variable frequency induction heater circuit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101106845A (en) * | 2006-07-12 | 2008-01-16 | 日立空调·家用电器株式会社 | Electromagnetic induction heating device |
| EP2148421A1 (en) * | 2008-07-21 | 2010-01-27 | GH Electrotermia, S.A. | Pulse density modulated high efficiency converter for induction heating |
| CN102984837A (en) * | 2012-12-10 | 2013-03-20 | 广东澳得科技股份有限公司 | Energy-saving multifrequency electromagnetic induction heating device |
| CN203015159U (en) * | 2012-12-19 | 2013-06-19 | 曾明祥 | All-digital electromagnetic induction heater |
| CN203608392U (en) * | 2013-10-23 | 2014-05-21 | 北京久顺科技有限公司 | A digital frequency modulation phase-locked loop type full-bridge series connection resonance electromagnetic induction heating power supply |
-
2013
- 2013-10-23 CN CN201310503968.1A patent/CN103687116A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101106845A (en) * | 2006-07-12 | 2008-01-16 | 日立空调·家用电器株式会社 | Electromagnetic induction heating device |
| EP2148421A1 (en) * | 2008-07-21 | 2010-01-27 | GH Electrotermia, S.A. | Pulse density modulated high efficiency converter for induction heating |
| CN102984837A (en) * | 2012-12-10 | 2013-03-20 | 广东澳得科技股份有限公司 | Energy-saving multifrequency electromagnetic induction heating device |
| CN203015159U (en) * | 2012-12-19 | 2013-06-19 | 曾明祥 | All-digital electromagnetic induction heater |
| CN203608392U (en) * | 2013-10-23 | 2014-05-21 | 北京久顺科技有限公司 | A digital frequency modulation phase-locked loop type full-bridge series connection resonance electromagnetic induction heating power supply |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104349521A (en) * | 2014-09-05 | 2015-02-11 | 湘潭市南冶中频高新技术开发有限公司 | IGBT (Insulated Gate Bipolar Translator) half-bridge inverter medium-frequency - ultrasonic-frequency - high-frequency induction heating power supply |
| CN104349521B (en) * | 2014-09-05 | 2015-11-04 | 湘潭市南冶中频高新技术开发有限公司 | IGBT semi-bridge inversion intermediate frequency-superaudio-high-frequency induction heating power |
| CN107135564A (en) * | 2017-07-02 | 2017-09-05 | 中国计量大学 | A kind of pulsed induction heating power of the digital frequency-tracking of modified |
| CN108601123A (en) * | 2017-11-13 | 2018-09-28 | 成都航空职业技术学院 | A kind of variable frequency induction heater circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101309529B (en) | Intelligent control apparatus and method for high-power energy saving electromagnetic stove | |
| CN102647030A (en) | Wireless electric energy transmitting device and wireless electric energy power supply system | |
| CN106936386B (en) | Resonant type dual-power supply aviation electromagnetic emission device | |
| CN103687116A (en) | Digital FM (Frequency Modulation) PLL (Phase-locked Loop) full-bridge serial resonance electromagnetic induction heating power supply | |
| CN203608392U (en) | A digital frequency modulation phase-locked loop type full-bridge series connection resonance electromagnetic induction heating power supply | |
| CN103596308B (en) | A kind of series resonant equipment for Electromagnetic Heating | |
| CN103687117A (en) | Digital FM (Frequency Modulation) PLL (Phase-locked Loop) half-bridge serial resonance electromagnetic induction heating power supply | |
| CN206585481U (en) | PFC PFC rectification circuits, electromagnetic heating system and electromagnetic oven | |
| CN204504465U (en) | Parallel type inversion electric power main circuit | |
| CN203608393U (en) | A digital frequency modulation phase-locked loop type half-bridge series connection resonance electromagnetic induction heating power supply | |
| CN203785025U (en) | Wide-voltage constant-power electromagnetic oven | |
| CN204013246U (en) | High-frequency and high-voltage sinewave output power supply | |
| CN103427502B (en) | Based on IPT system envelope line modulation circuit and the method for pulsewidth identification | |
| CN206432893U (en) | A kind of Switching Power Supply and its denoising device | |
| CN206250997U (en) | A kind of LCC resonant modes microwave applications device powersupply system | |
| CN103836682A (en) | Induction cooker with multiple cooking ranges | |
| CN104601005A (en) | Resonance offset frequency ozone generator power supply | |
| CN205178886U (en) | Sensor is kept apart to electric quantity | |
| CN201766519U (en) | Photovoltaic or wind power signal source pure sine wave grid-connected inverter | |
| CN206975133U (en) | Electromagnetic oven can present formula electronic load | |
| CN205081692U (en) | Constant current source type electromagnetic emitting device | |
| CN203691665U (en) | Series resonance device for electromagnetic heating | |
| CN208386255U (en) | A kind of wireless electric energy transmission device with constant current output characteristic | |
| CN105450037A (en) | Intermediate frequency power supply heating system | |
| CN206975134U (en) | A kind of energy-saving type electromagnetic oven aging equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140326 |