CN106535381A - IGBT control circuit, heating circuit and electromagnetic heating appliance - Google Patents
IGBT control circuit, heating circuit and electromagnetic heating appliance Download PDFInfo
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- CN106535381A CN106535381A CN201611053786.9A CN201611053786A CN106535381A CN 106535381 A CN106535381 A CN 106535381A CN 201611053786 A CN201611053786 A CN 201611053786A CN 106535381 A CN106535381 A CN 106535381A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 26
- 238000005070 sampling Methods 0.000 claims abstract description 20
- 230000001360 synchronised effect Effects 0.000 claims description 43
- 230000000694 effects Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000004907 flux Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/06—Control, e.g. of temperature, of power
- H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/12—Cooking devices
- H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them
- H05B6/1236—Cooking devices induction cooking plates or the like and devices to be used in combination with them adapted to induce current in a coil to supply power to a device and electrical heating devices powered in this way
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2206/00—Aspects relating to heating by electric, magnetic, or electromagnetic fields covered by group H05B6/00
- H05B2206/02—Induction heating
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Induction Heating (AREA)
Abstract
The invention relates to an IGBT control circuit, which comprises a heating circuit and an electromagnetic heating appliance of the IGBT control circuit. The IGBT control circuit performs control on a plurality of LC resonance circuits, and comprises a plurality of IGBTs, a plurality of one-way conduction elements, a synchronization circuit and a control unit, wherein the plurality of one-way conduction elements are used for transmitting trigger signals generated by the LC resonance circuits in a one-way manner; the synchronization circuit is used for sampling to acquire the trigger signals of the LC resonance circuits, and the plurality of IGBTs share the synchronization circuit; the control unit is used for controlling on-off of each IGBT according to the trigger signals acquired by the synchronization circuit through sampling. In the scheme provided by the invention, the plurality of LC resonance circuits and the plurality of IGBTs share the same synchronization circuit to sample so as to acquire a trigger zero point, and control for on-off of the IGBTs is realized, so that IGBTs except for the operating IGBT are turned off without a need of setting switching devices such as a relay, and thus the circuit is simplified.
Description
Technical field
The present invention relates to technical field of electric appliances, more particularly to a kind of IGBT control circuits, including the IGBT control circuits
Heater circuit and the Electromagnetic Heating electrical equipment including the heater circuit.
Background technology
Electromagnetic Heating electrical equipment in the market, the power circuit great majority of such as IH electric cookers, electromagnetic oven etc. are using in parallel
Resonance topological.Wherein, IGBT drive signals are produced by the synchronizing signal triggering of synchronous circuit.One synchronous circuit can only be touched
An IGBT control signal is sent out, therefore, when there is multiple coil panels, a synchronous circuit will control multiple IGBT.Now, lead to
Usually through switching device, such as relay etc., remaining the IGBT loop in addition to the IGBT of work is disconnected, for example, forceful electric power is returned
Road.Thus, when IGBT electric currents are larger, will be higher to switching requirement on devices, and the switching device life-span such as general relay
It is shorter, so that for closing in cost requirement high field, it is impossible to realize the control of multiple IGBT using the switching device
System.
The content of the invention
In view of this, the present invention provide a kind of IGBT control circuits, the heater circuit including the IGBT control circuits and
Including the Electromagnetic Heating electrical equipment of the heater circuit, the control of multiple IGBT is realized by a synchronous circuit, without passing through
The devices such as switch disconnect in multiple IGBT except remaining IGBT loop of work IGBT.
According to the first aspect of the invention, there is provided a kind of IGBT control circuits are controlled by multiple LC resonance circuits,
Including：Multiple IGBT；Multiple one-way conduction elements, the trigger produced for one-way transmission LC resonance circuit (triggering zero
Point)；Synchronous circuit, the trigger for obtaining LC resonance circuits for sampling, the plurality of IGBT share the synchronous circuit；And
Control unit, the turn-on and turn-off for obtaining that trigger controls each IGBT for sampling according to the synchronous circuit.
Further, the resonance coil included by the plurality of LC resonance circuits is put so that each LC resonance circuits are formed
Mutual inductance effect, so as to synchronous triggering signal, and obtains the trigger by synchronous circuit sampling.
Further, the negative electrode of the plurality of one-way conduction element is connected to same point, and anode is connected to respective
Between LC resonance circuits and the colelctor electrode of IGBT.
Further, minimum of the trigger corresponding to the voltage of the same point.
Further, the minimum is no-voltage.
Further, one end of the synchronous circuit is connected to the same point such that it is able to which sampling obtains described unidirectional
The trigger of breakover element transmission.
Further, the plurality of LC resonance circuits include LC resonance circuits and the 2nd LC resonance circuits of parallel connection；
The plurality of IGBT includes an IGBT and the 2nd IGBT；And the plurality of one-way conduction element include the first breakover element and
Second breakover element.
Further, the negative electrode of first breakover element and the second breakover element is connected to same point；First conducting unit
The anode of part is connected between LC resonance circuits and the colelctor electrode of an IGBT；And second breakover element anode connection
Between the 2nd LC resonance circuits and the colelctor electrode of the 2nd IGBT.
Further, the one-way conduction element is diode.
Further, described control unit includes：
Multiple IGBT drive modules, drive the plurality of IGBT respectively；And
Control module, using a driving port output drive signal, controls the plurality of IGBT drive module.
Further, the control module also includes enable port, and output enables signal, is driven with controlling the plurality of IGBT
Dynamic model block so that only have an IGBT at some moment and be at working condition.
According to the second aspect of the invention, there is provided a kind of heater circuit, including：Multiple LC resonance circuits, as resonance plus
Hot cell；And the IGBT control circuits as described in above-mentioned any one.
According to the third aspect of the invention we, there is provided a kind of Electromagnetic Heating electrical equipment, including described heater circuit.
Such scheme of the invention, shares a synchronous circuit sampling by multiple LC resonance circuits, multiple IGBT
Trigger (triggering zero point) is obtained, the control of the turn-on and turn-off to IGBT is realized.So as to the switch such as relay need not be arranged
Device disconnects remaining IGBT in addition to work IGBT.Thus, Electromagnetic Heating electrical equipment is simplified, such as IH electric cookers, electromagnetic oven
The structure of the control circuit etc. the multiple IGBT in the heater circuit of the parallel resonance topological structure having, reduces the heating
The cost of circuit.
Further detailed description is done to technical scheme below in conjunction with the drawings and the specific embodiments, the present invention
Beneficial effect will be further appreciated.
Description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the present invention, is used for
The present invention is explained, inappropriate limitation of the present invention is not constituted.
Fig. 1 shows the structure side of the heater circuit of the electromagnetic circuit including the IGBT control circuits of the invention
Block diagram.
Fig. 2 shows the electromagnetic circuit including the IGBT control circuits according to the preferably specific embodiment of the present invention one
Heater circuit circuit diagram.
Specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention and
Corresponding accompanying drawing is clearly and completely described to technical solution of the present invention.Obviously, described embodiment is only the present invention one
Section Example, rather than the embodiment of whole.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
The every other embodiment obtained under the premise of going out creative work, belongs to the scope of protection of the invention.
Scheme of the invention, there is provided a kind of IGBT control circuits and the electromagnetism including the IGBT control circuits
The heater circuit of heating electrical appliance, can realize the control of multiple IGBT by a synchronous circuit, without by switch etc.
Device disconnect in multiple IGBT except work IGBT remaining IGBT loop, such as forceful electric power loop, so that arrange relay
The switching devices such as device disconnect remaining IGBT in addition to work IGBT.
Illustrate the IGBT control circuits of the present invention and the heater circuit of the Electromagnetic Heating electrical equipment first with reference to Fig. 1.Fig. 1 shows
The block diagram of the heater circuit of the electromagnetic circuit including the IGBT control circuits of the invention is gone out.Such as Fig. 1 institutes
Show, the heater circuit of the electromagnetic circuit includes：Rectification circuit, multiple LC resonance circuits LC1 as resonance heating unit,
LC2, and the IGBT control circuits.For Electromagnetic Heating electrical equipment, LC the resonance circuits LC1 and LC2 are by resonance
The resonance heating unit that coil and resonant capacitance are constituted.
The IGBT control circuits are used for control of the realization to multiple IGBT, including：Multiple IGBT, i.e. IGBT1, IGBT2,
By the turn-on and turn-off realization of the plurality of IGBT control respectively to multiple LC resonance circuits；Multiple one-way conduction element D1,
D2, for the trigger that one-way transmission LC resonance circuit is produced；Synchronous circuit Sync, obtains LC resonance circuits for sampling
Trigger, the plurality of IGBT1, IGBT2 share synchronous circuit Sync；And control unit Cr, for according to described same
The trigger that step circuit Sync samplings are obtained controls the turn-on and turn-off of each IGBT.The plurality of LC resonance circuits are wrapped
The resonance coil for including is put so that each LC resonance circuits form mutual inductance effect such that it is able to synchronous triggering signal, and by described
Synchronous circuit Sync samplings obtain the trigger.Specifically, the negative electrode of the plurality of one-way conduction element D1, D2 is connected to
Same point, anode are connected between respective LC resonance circuits and the colelctor electrode of IGBT.So, multiple one-way conduction elements
D1, D2 constitute a selection circuit, and the collector voltage of which IGBT is high, and synchronous circuit just samples the colelctor electrode of which IGBT
Voltage, although sampling is high voltage, but always has minimum point, and new triggering zero point is exactly this minimum point, ideally
This minimum point is no-voltage, but normal conditions are unable to reach no-voltage.Synchronous circuit is triggered according to triggering Null steering
Signal.That is, minimum of the trigger corresponding to the voltage of above-mentioned same point.
According to the above-mentioned described technical scheme of the present invention, the control of multiple IGBT can be realized by a synchronous circuit
System, without by the devices such as switch disconnect in multiple IGBT except remaining IGBT of work IGBT, so as to without the need for arrange after
The switching devices such as electrical equipment disconnect remaining IGBT in addition to work IGBT.Thus, Electromagnetic Heating electrical equipment is simplified, such as IH electricity meals
The structure of the control circuit of the multiple IGBT in the heater circuit of the parallel resonance topological structure that pot, electromagnetic oven etc. have, reduces
The cost of the heater circuit.
Hereinafter each several part of foregoing circuit is described in detail.It is pointed out that for convenience of description, the present invention's retouches
In stating, the part such as LC resonance circuits, one-way conduction element and IGBT is as a example by two, but those skilled in the art
It is appreciated that the quantity of above-mentioned each part is clearly not limited to two.
Described LC resonance circuits LC1, LC2, as described above, are made up of resonance coil and resonant capacitance, are the electromagnetism
The heating unit of heating electrical appliance.In the present invention, it is preferred to, the coil panel putting position of each resonance coil need to form mutual inductance
Effect, i.e. when the coil panel of a LC resonance circuit works, the magnetic flux of the resonance coil of other LC resonance circuits occurs to become
Change, so as to produce inverse electromotive force, then equally to form LC with resonant capacitance humorous for the resonance coil in other LC resonance circuits
Shake, and synchronously trigger zero point.
The negative electrode of described one-way conduction element D1, D2 is connected to same point, and anode is connected to respective LC resonance electricity
Between road and the colelctor electrode of IGBT.Specifically, the anode of one-way conduction element D1 is connected to LC resonance circuit LC1 and IGBT1
Between colelctor electrode, the anode of one-way conduction element D2 is connected between the colelctor electrode of LC resonance circuit LC2 and IGBT2.So as to, institute
State one-way conduction element and be capable of the zero point of one-way transmission LC resonance circuit generation to the synchronous circuit, thus, then for above-mentioned
For the synchronous circuit that two LC resonance circuits are shared, the resonance between multiple LC resonant elements will not produce interference, so as to
Control unit is enabled according to conducting and the pass of the multiple IGBT of the triggering Zero magnitude control of synchronous circuit Sync sampling acquisitions
It is disconnected.In one embodiment, the one-way conduction element is, for example, diode, and certainly, the one-way conduction element is alternatively other
Play the device or circuit of one-way conduction function.
Conducting and pass of the described control unit for the triggering Zero magnitude control IGBT according to synchronous circuit Sync sampling acquisitions
It is disconnected.In one particular embodiment of the present invention, described control unit includes that the first IGBT drive module Dr1, the 2nd IGBT drive
Dynamic model block Dr2, for driving IGBT1 and IGBT2, and control module C respectively, drives port output using an IGBT
IGBT drive signals drive first and second IGBT drive module Dr1 and Dr2, so as to drive IGBT1 and IGBT2 respectively.Meanwhile, institute
State control module C and signal is enabled using the IGBT of multiple driving enable ports output so that only have one at some moment
IGBT is at working condition.
Specifically, described control unit C, for example, single-chip microcomputer, drive port controlling the plurality of by an IGBT
IGBT1、IGBT2.First, output IGBT in one of multiple driving enable ports of control unit C drives and enables signal, by this
IGBT drives and enables signal, it is ensured that single IGBT work, remaining IGBT does not work, so as to multiple IGBT can not be worked simultaneously.Together
When, by the mutual inductance effect between multiple LC resonance circuits, when an IGBT works, the resonance coil that other IGBT drive by
There is magnetic flux change in mutual inductance, therefore also have resonant energy, so as to multiple LC resonance electricity as resonance heating unit
Zero point is triggered synchronously in road.Further, the current collection of each IGBT is connected to by the anode of multiple one-way conduction element D1, D2
Pole, negative electrode are connected to same point, and one end of synchronous circuit is also connected to the same point, so as to the one-way conduction element energy
Enough by the triggering zero point one-way conduction to synchronous circuit.What control unit Cr was obtained thus, it is possible to be sampled according to synchronous circuit touches
Send out the turn-on and turn-off of Zero magnitude control IGBT.
So that IGBT1 is in running order as an example, the working condition of the IGBT control circuits is described.LC resonance electricity
Road LC1 resonance, and the sense of current is that, along the direction of one-way conduction circuit D1 arrows, and LC resonance circuit LC2 are produced due to mutual inductance
It is born in and the rightabout electric current of the electric current of LC1.Using two diode unilateral conduction characteristics, the collector voltage of which IGBT
Height, synchronous circuit just sample the collector voltage of which IGBT.Although sampling is high voltage, comparatively always have minimum
Point, this minimum point is just as the triggering zero point, but this voltage is not usually no-voltage.So as to control unit Cr being capable of root
The turn-on and turn-off of the triggering Zero magnitude control IGBT obtained according to synchronous circuit sampling.Such then two LC resonance circuits share one together
Step circuit and do not produce interference, and while eliminating switch element so that circuit is simplified.
The IGBT control circuits of the present invention are described with reference to Fig. 2 and the electromagnetism comprising the IGBT control circuits adds
The specific embodiment of the heater circuit of thermoelectricity device.Fig. 2 is shown according to the preferably specific embodiment of the present invention one including institute
State the circuit diagram of the heater circuit of the electromagnetic circuit of IGBT control circuits.As shown in Fig. 2 still including two groups with the heater circuit
As illustrating as a example by the LC resonance circuits of resonance heating unit, it is to be noted that the quantity of resonance heating unit shows
Right not limited to this.
As shown in Fig. 2 the rectification circuit, for example, bridge rectifier, are that whole circuit system is powered.The LC is humorous
Circuit LC1, LC2 shake respectively including resonance coil L1 and resonant capacitance C101, resonance coil L2 and resonant capacitance C102.It is unidirectional
Logical element is diode D1 and D2, and its anode is connected between the colelctor electrode of LC resonance circuit LC1 and IGBT1, and LC
Between the colelctor electrode of resonance circuit LC2 and IGBT2.Preferably, the resonance coil in multiple LC resonance circuits of the invention is put
Position forms mutual inductance effect, and when a LC resonance circuit works, the resonance coil of other LC resonance circuits is due to the mutual inductance
Effect and magnetic flux changes, so as to produce inverse electromotive force.Resonance coil equally can form LC resonance simultaneously with resonant capacitance
Synchronous triggering zero point.
When IGBT1 is turned on, and LC resonance circuits LC1 is in work, the IGBT1 of control module, such as single-chip microcomputer drives and makes
The IGBT1 of energy port Pe1 outputs drives and enables signal for low level, and the IGBT2 of IGBT2 driving enable port Pe2 outputs drives
Enable signal is high level, and now the drive signal of IGBT1 is effective.Conversely, when IGBT2 is turned on, LC resonance circuits LC2 is in work
When making, IGBT2 drives the IGBT2 of enable port Pe2 outputs to drive and enables signal for low level, and IGBT1 drives enable port Pe1
It is high level that the IGBT1 of output drives and enables signal, and now the drive signal of IGBT2 is effective.Further, when IGBT1 is turned on,
When LC resonance circuits LC1 is in work, resonance coil L1 triggerings synchronous with resonant capacitance C101 composition parallel resonances and formation
Zero point.Due to the mutual inductance effect of resonance drum L1 and resonance coil L2, resonance coil L2 is in parallel humorous with resonant capacitance C102 compositions
Shake and formed synchronous triggering zero point.The two synchronously trigger zero point and pass through one-way conduction component of diode D1, D2 (D1 or D2
Can also constitute for multiple Diode series) one-way conduction characteristic constitute new synchronous triggering zero point.Specifically, diode D1
Anode be connected between the colelctor electrode of LC resonance circuit LC1 and IGBT1, the anode of diode D2 is connected to LC resonance circuits
Between LC2 and the colelctor electrode of IGBT2, the negative electrode of diode D1 and diode D2 is connected to same point, so, diode D1 and
Diode D2 constitutes a selection circuit, and in two IGBT, the collector voltage of which IGBT is high, and which synchronous circuit just samples
The collector voltage of individual IGBT, although sampling is high voltage, but always has minimum point, and new triggering zero point is exactly that this is minimum
Point, ideally this minimum point is no-voltage, but normal conditions are unable to reach no-voltage.Synchronous circuit Sync is using acquisition
The triggering zero point, so as to control unit C, for example, single-chip microcomputer is sampled according to synchronous circuit the triggering zero point for obtaining, and which drives port
Pd exports IGBT drive control signal, while drive according to the IGBT enabling signal, for example, the driving of IGBT1 enables signal
Effectively, the driving of IGBT2 enables invalidating signal, to guarantee to work when two IGBT are different, realizes that one IGBT of single-chip microcomputer drives
The multiple IGBT of port controlling.When IGBT2 is turned on, and LC resonance circuits LC2 is in work, with reference to above-mentioned principle.
Carry out to IGBT control circuits of the invention and including the heater circuit of the Electromagnetic Heating electrical equipment of the circuit above
Description.Such scheme of the invention, shares a synchronous circuit by multiple LC resonance circuits, multiple IGBT and obtains synchronous
Using triggering zero point, the control of the turn-on and turn-off to IGBT is realized.Remove so as to the disconnection of the switching devices such as relay need not be arranged
Remaining IGBT outside work IGBT.Thus, simplifying Electromagnetic Heating electrical equipment, such as IH electric cookers, electromagnetic oven etc. have simultaneously
Connection resonant topology heater circuit in multiple IGBT control circuit structure, reduce the heater circuit into
This.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for those skilled in the art
For, the present invention can have various changes and change.All any modifications made within spirit and principles of the present invention, equivalent
Replace, improve etc., should be included within the scope of the present invention.
Claims (13)
1. a kind of IGBT control circuits are controlled by multiple LC resonance circuits, including：
Multiple IGBT；
Multiple one-way conduction elements, for the trigger that one-way transmission LC resonance circuit is produced；
Synchronous circuit, the trigger for obtaining LC resonance circuits for sampling, the plurality of IGBT share the synchronous circuit；
And
Control unit, controls conducting and the pass of each IGBT for the trigger for obtaining of sampling according to the synchronous circuit
It is disconnected.
2. circuit according to claim 1, it is characterised in that
Resonance coil included by the plurality of LC resonance circuits put so that each LC resonance circuits formed mutual inductance effect, so as to
Synchronous triggering signal, and the trigger is obtained by synchronous circuit sampling.
3. circuit according to claim 1 and 2, it is characterised in that
The negative electrode of the plurality of one-way conduction element is connected to same point, anode be connected to respective LC resonance circuits with
Between the colelctor electrode of IGBT.
4. circuit according to claim 3, it is characterised in that
Minimum of the trigger corresponding to the voltage of same point.
5. circuit according to claim 4, it is characterised in that
The minimum is no-voltage.
6. circuit according to claim 3, it is characterised in that
One end of the synchronous circuit is connected to the same point such that it is able to which sampling obtains the one-way conduction element transmission
Trigger.
7. the circuit according to any one of claim 1-6, it is characterised in that
The plurality of LC resonance circuits include LC resonance circuits and the 2nd LC resonance circuits of parallel connection；
The plurality of IGBT includes an IGBT and the 2nd IGBT；And
The plurality of one-way conduction element includes the first breakover element and the second breakover element.
8. circuit according to claim 7, it is characterised in that
The negative electrode of first breakover element and the second breakover element is connected to same point；The anode of the first breakover element is connected to
Between first LC resonance circuits and the colelctor electrode of an IGBT；And second breakover element anode be connected to the 2nd LC resonance electricity
Between the colelctor electrode of road and the 2nd IGBT.
9. the circuit according to any one of claim 1-8, it is characterised in that
The one-way conduction element is diode.
10. the circuit according to any one of claim 1-9, it is characterised in that
Described control unit includes：
Multiple IGBT drive modules, drive the plurality of IGBT respectively；And
Control module, using a driving port output drive signal, controls the plurality of IGBT drive module.
11. circuits according to claim 10, it is characterised in that
The control module also includes enable port, and output enables signal, to control the plurality of IGBT drive module so that
Some moment only has an IGBT and is at working condition.
A kind of 12. heater circuits, including：
Multiple LC resonance circuits, used as resonance heating unit；And
IGBT control circuits according to any one of claim 1-11.
A kind of 13. Electromagnetic Heating electrical equipment, including heater circuit according to claim 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611053786.9A CN106535381A (en) | 2016-11-25 | 2016-11-25 | IGBT control circuit, heating circuit and electromagnetic heating appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611053786.9A CN106535381A (en) | 2016-11-25 | 2016-11-25 | IGBT control circuit, heating circuit and electromagnetic heating appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106535381A true CN106535381A (en) | 2017-03-22 |
Family
ID=58356892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611053786.9A Pending CN106535381A (en) | 2016-11-25 | 2016-11-25 | IGBT control circuit, heating circuit and electromagnetic heating appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106535381A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019192157A1 (en) * | 2018-04-03 | 2019-10-10 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetically heated cooking utensil, and heating control circuit and method therefor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106162973A (en) * | 2015-04-28 | 2016-11-23 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic resonant circuit, its control method and control system thereof |
-
2016
- 2016-11-25 CN CN201611053786.9A patent/CN106535381A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106162973A (en) * | 2015-04-28 | 2016-11-23 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic resonant circuit, its control method and control system thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019192157A1 (en) * | 2018-04-03 | 2019-10-10 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetically heated cooking utensil, and heating control circuit and method therefor |
| US11751292B2 (en) | 2018-04-03 | 2023-09-05 | Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co., Ltd. | Electromagnetically heated cooking utensil, and heating control circuit and method therefor |
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Application publication date: 20170322 |