CN104540258B - Commercial formula electromagnetic oven circuit - Google Patents
Commercial formula electromagnetic oven circuit Download PDFInfo
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- CN104540258B CN104540258B CN201410825061.1A CN201410825061A CN104540258B CN 104540258 B CN104540258 B CN 104540258B CN 201410825061 A CN201410825061 A CN 201410825061A CN 104540258 B CN104540258 B CN 104540258B
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Abstract
The present invention discloses a kind of commercial formula electromagnetic oven circuit, comprise MCU single-chip microcomputer, the power circuit IGBT be connected to each other and drive circuit, master chip control circuit, electromagnetic oven wire coil connects IGBT, master chip control circuit comprises the synchronous circuit be connected, second integration module circuit etc., second integration module circuit is integrated with drive circuit, 5V stabilized voltage power supply, chip over-temperature protective circuit, fan drive circuit, the A of the second integration module circuit, B port connects MCU single-chip microcomputer, MCU single-chip microcomputer signal exports IGBT drive singal from AX port from A port after the second integration module circuit, after the second integration module circuit, fan driving signal is exported from BX port from B port, VCC1 port connects 18V power supply and drives power supply to IGBT.The present invention replaces the peripheral circuit of existing single-chip microcomputer with integrated circuit, is integrated on one piece of circuit board, reduces costs, improve electrical system generalization degree.
Description
Technical field
The present invention relates to electromagentic furnace technology field, more particularly, relate to a kind of commercial formula electromagnetic oven circuit.
Background technology
Electromagnetic oven is according to electromagnetic inductive heating principle, utilizes alternating current to produce alternating magnetic field by coil, and alternating magnetic field produces induced current (eddy current) bottom the irony of iron pot, and eddy current makes a pot body generate heat rapidly, thus can realize the function of cooking food.
Existing commercial formula electromagnetic oven circuit is primarily of several large circuit part composition; respectively: power rectifier part; measure voltage & current protection part, face version control section, synchronous and drive part; wherein blower fan driving, IGBT driving, DC5V power supply, buzzer drive; above circuit is all made up of discrete component; the many costs of components and parts are high, and temperature influence is large, and circuit stability is poor.Market Feedback failure rate remains high.
Summary of the invention
The technical problem to be solved in the present invention is, provides a kind of commercial formula electromagnetic oven circuit adopting the low cost of digital intelligent control mode, to overcome the deficiencies in the prior art.
The technical solution adopted for the present invention to solve the technical problems is: a kind of commercial formula electromagnetic oven circuit, comprises MCU single-chip microcomputer, the power circuit be connected to each other, current rectifying and wave filtering circuit, resonant circuit, IGBT and drive circuit, master chip control circuit, electromagnetic oven wire coil, described electromagnetic oven wire coil connects IGBT, and described master chip control circuit comprises the synchronous circuit be connected, voltage detection circuit, stream gushes testing circuit, sensor detection circuit and the second integration module circuit, described second integration module circuit is integrated with drive circuit, 5V stabilized voltage power supply, chip over-temperature protective circuit, fan drive circuit, the A of described second integration module circuit, B port connects MCU single-chip microcomputer, and MCU single-chip microcomputer signal exports IGBT drive singal from AX port from A port after the second integration module circuit, after the second integration module circuit, export fan driving signal from B port from BX port, the VCC2 port of described second integration module circuit connects 9V power supply, and exporting 5V stabilized voltage power supply from vdd terminal mouth, the VCC1 port of described second integration module circuit connects 18V power supply and drives power supply to IGBT.
Described MCU single-chip microcomputer is also provided with the drive singal interface of buzzer.
Described chip over-temperature protective circuit comprises temperature semiconductor RT1.
Compared with prior art, the invention has the beneficial effects as follows:
Commercial formula electromagnetic oven circuit of the present invention replaces the peripheral function circuit of existing electromagnetic oven electric control system by the second integration module, whole electric control system is made can be highly integrated on one piece of circuit board, and replace existing Analog control with digital control, improve the intelligent level of commercial induction cooker, and reduce the cost of control system, improve electrical system generalization degree.
Commercial formula electromagnetic oven circuit electric component of the present invention is few, and circuit is simplified, and reliability is high, and production cost is low.
Accompanying drawing explanation
Fig. 1 is the present invention's commercial formula electromagnetic oven circuit figure.
Fig. 2 is the circuit theory schematic diagram of the present invention second integration module.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
See Fig. 1-2, the structure of the commercial formula electromagnetic oven circuit of the present invention comprises MCU single-chip microcomputer 4, IGBT(InsulatedGateBipolarTransistor, insulated gate bipolar transistor), electromagnetic oven wire coil (in figure, drum interface 2 being only shown), electromagnetic oven wire coil connects IGBT, the power circuit 5 be connected to each other in addition, rectifying and wave-filtering and resonant circuit 1, IGBT and drive circuit, master chip control circuit 3, see Fig. 1, master chip control circuit comprises the synchronous circuit be connected, voltage detection circuit, stream gushes testing circuit, sensor detection circuit and the second integration module circuit 6, described second integration module circuit is integrated with drive circuit, 5V stabilized voltage power supply, chip over-temperature protective circuit, fan drive circuit, see Fig. 1-2, the A of described second integration module circuit, B port connects MCU single-chip microcomputer, and MCU single-chip microcomputer signal exports IGBT drive singal from AX port from A port after the second integration module circuit, after the second integration module circuit, export fan driving signal from B port from BX port, the VCC2 port of the second integration module circuit connects 9V power supply, and exporting 5V stabilized voltage power supply from vdd terminal mouth, the VCC1 port of the second integration module circuit connects 18V power supply and drives power supply to IGBT.
MCU single-chip microcomputer is also provided with the drive singal interface of buzzer.Described chip over-temperature protective circuit comprises temperature semiconductor RT1.
The present invention replaces the peripheral circuit of existing single-chip microcomputer with integrated circuit modules, is integrated on one piece of circuit board, reduces costs, and ensures consistency, improves electrical system generalization degree.Control system comprises two IC, and one is MCU single-chip microcomputer, and one is the second integration module circuit.MCU single-chip microcomputer samples protective circuit by IGBT, inspection pot circuit, power-on protective circuit, A/D voltage sample circuit, CPU connect to form and be packaged as a whole, and realizes the function such as work monitoring, fault detect, control, display of electromagnetic oven wire coil.Power circuit connects 220V power supply, and rectification exports 9V, 18V.Synchronous circuit makes oscillator signal synchronous.Peripheral circuit such as drive circuit, 5V stabilized voltage power supply, chip over-temperature protective circuit, fan drive circuit etc. then occur with integration module form and are packaged as a whole.Its circuit theory is with reference to shown in figure 2:
Single-chip microprocessor MCU connects A port, out IGBT is driven: high level is from A port to R7 resistance from AX port, pressure drop is formed by R7, R8, drive Q5, Q5 to become low level, Q4 ends, C pole due to Q4 connects the B pole of Q2, Q3, make Q2 conducting, Q3 cut-off, AX port exports high level signal, makes 5V voltage amplification be that 18V exports.High level, exports from BX port with low level, drive fan from B port through two divider resistances.
VCC1 port connects 18V power supply, through R11, give and drive power supply, and 18V power supply enters Q4C pole by R5.VCC2 port connects 9V power supply, through a voltage stabilizing IC, exports 5V power supply, power to 5V voltage stabilizing circuit from vdd terminal mouth.
VSS is ground wire, and RT1 is temperature semiconductor.
The SCM peripheral circuit height of existing system is integrated in the second integration module by the present invention, replaces original cumbersome peripheral circuit, reduce electrical control cost, reduce electric component, also reduce the volume of control section simultaneously with IC.
Below openly specific embodiments of the invention are only; do not form limiting the scope of the invention; for general technical staff of the technical field of the invention; do not departing under general idea prerequisite of the present invention; according to technical solution of the present invention do without the need to through the change of creative work and replacement, all should drop within protection scope of the present invention.
Claims (3)
1. a commercial formula electromagnetic oven circuit, comprise MCU single-chip microcomputer, also comprise power circuit, current rectifying and wave filtering circuit, resonant circuit, IGBT and drive circuit, master chip control circuit, electromagnetic oven wire coil, described electromagnetic oven wire coil connects IGBT, it is characterized in that: described master chip control circuit comprises synchronous circuit, voltage detection circuit, surge testing circuit, sensor detection circuit and the second integrated circuit, described synchronous circuit, voltage detection circuit, surge testing circuit, sensor detection circuit and the second integrated circuit are connected on the different pins of MCU single-chip microcomputer, described second integrated circuit is integrated with drive circuit, 5V stabilized voltage power supply, chip over-temperature protective circuit, fan drive circuit, the A of described second integrated circuit, B port connects MCU single-chip microcomputer, MCU single-chip microcomputer signal exports IGBT drive singal from AX port from A port after the second integrated circuit, after the second integrated circuit, fan driving signal is exported from BX port from B port, the VCC1 port of described second integrated circuit connects 9V power supply, and export 5V stabilized voltage power supply from vdd terminal mouth, the VCC2 port of described second integrated circuit connects 18V power supply and powers to IGBT driving and fans drive.
2. commercial formula electromagnetic oven circuit according to claim 1, is characterized in that: described MCU single-chip microcomputer is also provided with the drive singal interface of buzzer.
3. commercial formula electromagnetic oven circuit according to claim 1, is characterized in that: described chip over-temperature protective circuit comprises temperature semiconductor RT1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410825061.1A CN104540258B (en) | 2014-12-27 | 2014-12-27 | Commercial formula electromagnetic oven circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410825061.1A CN104540258B (en) | 2014-12-27 | 2014-12-27 | Commercial formula electromagnetic oven circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104540258A CN104540258A (en) | 2015-04-22 |
| CN104540258B true CN104540258B (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410825061.1A Active CN104540258B (en) | 2014-12-27 | 2014-12-27 | Commercial formula electromagnetic oven circuit |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1083885A (en) * | 1996-09-10 | 1998-03-31 | Mitsubishi Heavy Ind Ltd | Induction heating power supply and method for controlling timing of its gate control signal |
| CN100539768C (en) * | 2007-10-30 | 2009-09-09 | 深圳和而泰智能控制股份有限公司 | A kind of electromagnetic oven synchronisation control means and circuit thereof |
| CN201282576Y (en) * | 2008-07-24 | 2009-07-29 | 武汉理工大学 | Electric control gear of modularization high-power electromagnetic stove |
| CN101754507B (en) * | 2008-12-12 | 2012-05-09 | 深圳市鑫汇科科技有限公司 | Electromagnetic oven circuit based on SoC chip |
| CN101932148A (en) * | 2009-06-23 | 2010-12-29 | 宝应县恒泰电器设备厂 | Electromagnetic heating circuit |
| CN203086768U (en) * | 2013-03-18 | 2013-07-24 | 佛山市顺德区海明晖电子有限公司 | Integrated chip of commercial induction cooker |
| CN204334994U (en) * | 2014-12-27 | 2015-05-13 | 佛山市顺德区海明晖电子有限公司 | Commercial formula electromagnetic oven circuit |
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2014
- 2014-12-27 CN CN201410825061.1A patent/CN104540258B/en active Active
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| CN104540258A (en) | 2015-04-22 |
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Address after: 528000 Guangdong City, Shunde District, Ronggui Rong Chang Bao Xi Road, No. 33 days to come to the international industrial city of the third phase 501, 502 plant 14 Patentee after: Guangdong Hai Ming Hui Electronic Technology Co. Ltd. Address before: 528300 Guangdong City, Shunde District, Ronggui Rong Chang Bao Xi Road, No. 33 days to come to the international industrial city of the third phase 501, 502 plant 14 Patentee before: Foshan Shunde District Highway Electronic Co., Ltd. |
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| 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: Commercial type induction cooker circuit Effective date of registration: 20200426 Granted publication date: 20160113 Pledgee: Ronggui sub branch of Guangdong Shunde Rural Commercial Bank Co., Ltd Pledgor: GUANGDONG HIGHWAY ELECTRONIC TECHNOLOGY Co.,Ltd. Registration number: Y2020980001806 |