CN105698230B - Electric cooking pot and its control circuit - Google Patents
Electric cooking pot and its control circuit Download PDFInfo
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- CN105698230B CN105698230B CN201410714343.4A CN201410714343A CN105698230B CN 105698230 B CN105698230 B CN 105698230B CN 201410714343 A CN201410714343 A CN 201410714343A CN 105698230 B CN105698230 B CN 105698230B
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Abstract
The invention discloses a kind of electric cooking pot and its control circuit, wherein control circuit includes：N number of coil disk module；Power module, power module give N number of coil panel module for power supply respectively；N number of power switch, each power switch corresponds with each coil disk module to be connected to form N number of resonance heating circuit；N number of drive module, each drive module corresponds with each power switch to be connected with each power switch of respective drive；Synchronization signal detection module, synchronization signal detection module are used to carry out independent detection to the synchronizing signal of each resonance heating circuit；Control module, the synchronizing signal that control module detects according to synchronization signal detection module can control each resonance heating circuit while work independently or control each resonance heating circuit to work independently.The control circuit can control each resonance heating circuit while work independently or control each resonance heating circuit to work independently, and fully meet the culinary art demand of user.
Description
Technical field
The present invention relates to electric heating appliance technical field, the control circuit and one kind of more particularly to a kind of electric cooking pot have
The electric cooking pot of the control circuit.
Background technology
In electric cooking pot product such as electric cooker, electromagnetic oven, electric pressure cooking saucepan, multistage IH is to use multiple autonomous workings
Coil panel carry out computer heating control.Current control program is heated in a manner of series, parallel or scanning mostly, every section
Coil generally can not the power of independent control or every section of coil can not be separately adjustable, the culinary art demand of user can not be met, given
The life of user is made troubles.
The content of the invention
The purpose of the present invention is intended at least solve one of above-mentioned technological deficiency.
Therefore, it is an object of the present invention to propose a kind of control circuit of electric cooking pot, each resonance can control to add
Hot loop works independently or controlled simultaneously each resonance heating circuit to work independently, and fully meets the culinary art demand of user.
It is another object of the present invention to propose a kind of electric cooking pot.
To reach above-mentioned purpose, a kind of control circuit for electric cooking pot that one aspect of the present invention embodiment proposes, including：N
Individual coil disk module, wherein, N is the integer more than or equal to 2；Power module, the power module respectively with N number of coil panel
Module is connected with to N number of coil panel module for power supply；N number of power switch, each power switch in N number of power switch
Correspond and be connected to form N number of resonance heating circuit with each coil disk module in N number of coil disk module；N number of drive
Dynamic model block, each drive module in N number of drive module and a pair of each power switch 1 in N number of power switch
It should be connected with each power switch described in respective drive；Synchronization signal detection module, the synchronization signal detection module be used for pair
The synchronizing signal of each resonance heating circuit in N number of resonance heating circuit carries out independent detection；Control module, the control
Molding block is respectively connected with the synchronization signal detection module and N number of drive module, and the control module is according to described same
The synchronizing signal that step signal detection module detects can control each resonance heating circuit while work independently or control and be each humorous
The heating circuit that shakes works independently.
The control circuit of electric cooking pot according to embodiments of the present invention, is added by synchronization signal detection module to N number of resonance
The synchronizing signal of each resonance heating circuit in hot loop carries out independent detection, so as to which control module can each work(of independent control
Rate switchs so that each resonance heating circuit can work independently simultaneously, and each resonance heating circuit can also work independently, that is, cause
Each coil disk module can independent heating control simultaneously, also can independent computer heating control, so as to can control electric cooking pot fully to meet
The culinary art demand of user, the life to user are brought convenience.
According to one embodiment of present invention, when the electric cooking pot needs quickly to be heated with the first heating power
When, the control module controls N number of resonance heating circuit to work simultaneously；When the electric cooking pot is needed with the second heating work(
When rate is uniformly heated, the control module controls N number of resonance heating circuit to be operated in succession in a manner of scanning,
Wherein, second heating power is less than first heating power.
Also, when the control module controls N number of resonance heating circuit to carry out work in succession in a manner of the scanning
When making, the control module can control at least one resonance heating circuit to be operated in the same period.
In an embodiment of the present invention, the control module can also be carried out independent to the heating power of each coil disk module
Adjust to meet the culinary art demand of the electric cooking pot.
Specifically, according to one embodiment of present invention, when N is 2, the synchronization signal detection module includes the first inspection
Branch road, the second detection branch and the 3rd detection branch and comparing unit are surveyed, wherein, first detection branch includes：First
Resistance unit, the first resistor unit include first default resistance of series connection, one end difference of the first resistor unit
It is connected to one end of first coil disk module and one end of the second coil disk module；First resistor, one end of the first resistor
It is connected with the other end of the first resistor unit, the other end ground connection of the first resistor；First electric capacity, first electric capacity
It is in parallel with the first resistor；First diode, the other end of the anode of first diode and the first resistor unit
It is connected, the negative electrode of first diode is connected with the power supply of predeterminated voltage.
Also, second detection branch includes：Second resistance unit, the second resistance unit include the second of series connection
Default resistance, one end of the second resistance unit is connected to the other end of first coil disk module；Second resistance, described
One end of two resistance is connected with the other end of the second resistance unit, the other end ground connection of the second resistance；Second electric capacity,
Second electric capacity is in parallel with the second resistance；Second diode, anode and the second resistance of second diode
The other end of unit is connected, and the negative electrode of second diode is connected with the power supply of predeterminated voltage.
3rd detection branch includes：3rd resistor unit, the 3rd resistor unit second including series connection are default
Individual resistance, one end of the 3rd resistor unit are connected to the other end of the second coil disk module；3rd resistor, the 3rd electricity
One end of resistance is connected with the other end of the 3rd resistor unit, the other end ground connection of the 3rd resistor；3rd electric capacity, it is described
3rd electric capacity is in parallel with the 3rd resistor；3rd diode, anode and the 3rd resistor unit of the 3rd diode
The other end be connected, the negative electrode of the 3rd diode is connected with the power supply of predeterminated voltage.
The comparing unit includes：First comparator, the normal phase input end of the first comparator and the two or two pole
The anode of pipe is connected, and the inverting input of the first comparator is connected with the anode of first diode, first ratio
Output end compared with device is connected with the control module；4th electric capacity, the 4th electric capacity are being connected in parallel on the first comparator just
Between phase input and inverting input；Second comparator, the normal phase input end of second comparator and the three or two pole
The anode of pipe is connected, and the inverting input of second comparator is connected with the anode of first diode, second ratio
Output end compared with device is connected with the control module；5th electric capacity, the 5th electric capacity are being connected in parallel on second comparator just
Between phase input and inverting input.
According to one embodiment of present invention, the power module includes the AC power of input and to the AC power
Carry out the rectification filtering unit of rectifying and wave-filtering.
In addition, embodiments of the invention also proposed a kind of electric cooking pot, it includes the control electricity of above-mentioned electric cooking pot
Road.
Electric cooking pot according to embodiments of the present invention, can each power switch of independent control by its control circuit so that
Each resonance heating circuit can work independently simultaneously, and each resonance heating circuit can also work independently, that is, cause each coil panel
Module can independent heating control simultaneously, also can independent computer heating control, so as to which the electric cooking pot of the embodiment of the present invention fully meets to use
The culinary art demand at family, the life to user are brought convenience.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the block diagram according to the control circuit of the electric cooking pot of inventive embodiments；And
Fig. 2 is the circuit diagram according to the control circuit of the electric cooking pot of invention one embodiment.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the present invention.For letter
Change disclosure of the invention, hereinafter the part and setting of specific examples are described.Certainly, they are only example, and
Purpose does not lie in the limitation present invention.In addition, the present invention can in different examples repeat reference numerals and/or letter.It is this heavy
It is the relation between itself not indicating discussed various embodiments and/or setting for purposes of simplicity and clarity again.This
Outside, the invention provides various specific techniques and material examples, but those of ordinary skill in the art can be appreciated that
The applicable property of other techniques and/or the use of other materials.In addition, fisrt feature described below second feature it
" on " structure can include the first and second features and be formed as the embodiment that directly contacts, other feature shape can also be included
Into the embodiment between the first and second features, such first and second feature may not be direct contact.
In the description of the invention, it is necessary to explanation, unless otherwise prescribed and limit, term " installation ", " connected ",
" connection " should be interpreted broadly, for example, it may be mechanical connection or electrical connection or the connection of two element internals, can
To be to be joined directly together, can also be indirectly connected by intermediary, for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term.
The control circuit of electric cooking pot that its is proposed according to embodiments of the present invention is described and with should with reference to the accompanying drawings
The electric cooking pot of control circuit.
Fig. 1 is the block diagram according to the control circuit of the electric cooking pot of inventive embodiments.As shown in figure 1, the electricity is cooked
The control circuit of device of preparing food includes：N number of coil disk module 11,12 ..., 1N, power module 20, N number of power switch 31,32 ...,
3N, N number of drive module 41,42 ..., 4N, and synchronization signal detection module 50 and control module 60.Wherein, N be more than or equal to
2 integer, power switch can be IGBT.
As shown in figure 1, power module 20 respectively with N number of coil disk module 11,12 ..., 1N is connected with to N number of coil panel mould
Block 11,12 ..., 1N power supply；N number of power switch 31,32 ..., each power switch in 3N and N number of coil disk module 11,
12nd ..., each coil disk module in 1N, which corresponds, is connected to form N number of resonance heating circuit；N number of drive module 41,
42nd ..., each drive module in 4N and N number of power switch 31,32 ..., each power switch in 3N corresponds and is connected
With each power switch described in respective drive, that is, say, the control that each drive module is sent according to such as MCU of control module 60 is believed
Number generation drive signal is operated with power switch such as IGBT corresponding to driving；Synchronization signal detection module 50 is used for institute
The synchronizing signal for stating each resonance heating circuit in N number of resonance heating circuit carries out independent detection；Control module 60 with it is synchronous
Signal detection module 50 and N number of drive module 41,42 ..., 4N be respectively connected with, control module 60 is according to synchronization signal detection module
50 synchronizing signals detected can control each resonance heating circuit while work independently or control each resonance heating circuit list
Solely work.
Wherein, when electric cooking pot needs quickly to be heated with the first heating power, control module 60 controls N number of resonance
Heating circuit works simultaneously；When the electric cooking pot needs uniformly to be heated with the second heating power, control module 60 with
The mode of scanning controls N number of resonance heating circuit to be operated in succession, wherein, second heating power is less than described first and added
Thermal power.That is, when culinary art needs high flame quickly to heat, it can control N number of coil disk module to be heated simultaneously, reach
To high-power, quick heating, when culinary art needs small firepower uniformly to heat, N number of coil disk module is controlled to add in the way of scanning
Heat.
Also, when the control module controls N number of resonance heating circuit to carry out work in succession in a manner of the scanning
When making, the control module can control at least one resonance heating circuit to be operated in the same period.Say, scanning heating
The Shi Tongyi periods can be that single coil disk module is heated or multiple coil disk modules are heated.
In an embodiment of the present invention, control module 60 can also carry out independent tune to the heating power of each coil disk module
Save to meet the culinary art demand of electric cooking pot.
In summary, in an embodiment of the present invention, the synchronizing signal of each resonance heating circuit can independent detection, control
To each IGBT independent controls, enabling each coil disk module, independent heating controls module simultaneously, also can independent computer heating control.And
And the heating power of each coil panel can be with separately adjustable, to meet the culinary art demand of user.
Specifically, according to one embodiment of present invention, as shown in Fig. 2 when N is 2, N number of coil disk module is the
One coil disk module 11 and the second coil disk module 12, N number of power switch are the first such as IGBT1 of power switch 31 and the second work(
Rate switchs 32 such as IGBT2, and N number of drive module is the first drive module 41 and the second drive module 42, synchronization signal detection mould
Block 50 includes the first detection branch 501, the second detection branch 502 and the 3rd detection branch 503 and comparing unit 504.
Wherein, as shown in Fig. 2 the first detection branch 501 includes：First resistor unit 5011, first resistor R1, the first electricity
Hold C1 and the first diode D1.First default resistance such as four resistance of the first resistor unit 5011 including series connection, first
One end of resistance unit 5011 is connected respectively to one end of first coil disk module 11 and one end of the second coil disk module 12, i.e.,
Shared node A；First resistor R1 one end is connected with the other end of first resistor unit 5011, first resistor R1 another termination
Ground, the first electric capacity C1 is in parallel with first resistor R1, the first diode D1 anode and the other end phase of first resistor unit 5011
Even, the first diode D1 negative electrode is connected with predeterminated voltage such as 5V power supply.
Specifically, as shown in Fig. 2 the second detection branch 502 includes：Second resistance unit 5021, second resistance R2, second
Electric capacity C2 and the second diode D2.Second resistance unit 5021 includes second default resistance such as seven resistance of series connection, the
One end of two resistance units 5021 is connected to the other end of first coil disk module 11, i.e., shared node B1；Second resistance R2's
One end is connected with the other end of second resistance unit 5021, second resistance R2 other end ground connection, the electricity of the second electric capacity C2 and second
It is in parallel to hinder R2, the second diode D2 anode is connected with the other end of second resistance unit 5021, the second diode D2 negative electrode
It is connected with predeterminated voltage such as 5V power supply.
As shown in Fig. 2 the 3rd detection branch 503 includes：3rd resistor unit 5031,3rd resistor R3, the 3rd electric capacity C3
With the 3rd diode D3.Wherein, second default resistance such as seven resistance of the 3rd resistor unit 5031 including series connection, the 3rd
One end of resistance unit 5031 is connected to the other end of the second coil disk module 12, i.e., shared node B2；The one of 3rd resistor R3
End is connected with the other end of 3rd resistor unit 5031,3rd resistor R3 other end ground connection, the 3rd electric capacity C3 and 3rd resistor
R3 is in parallel, and the 3rd diode D3 anode is connected with the other end of 3rd resistor unit 5031, the 3rd diode D3 negative electrode and
Predeterminated voltage such as 5V power supply is connected.
Also, as shown in Fig. 2 comparing unit 504 includes：First comparator COMP1, the 4th electric capacity C4, the second comparator
COMP2 and the 5th electric capacity C5.Wherein, first comparator COMP1 normal phase input end is connected with the second diode D2 anode, the
One comparator COMP1 inverting input is connected with the first diode D1 anode, first comparator COMP1 output end and control
The a port INT2 of molding block 60 is connected, the 4th electric capacity C4 be connected in parallel on first comparator COMP1 normal phase input end with it is anti-phase
Between input；Second comparator COMP2 normal phase input end is connected with the 3rd diode D3 anode, the second comparator
COMP2 inverting input is connected with the first diode D1 anode, the second comparator COMP2 output end and control module 60
Another port INT1 be connected, the 5th electric capacity C5 is connected in parallel on the second comparator COMP2 normal phase input end and inverting input
Between.
In addition, an immunity module 71 is also associated between the first drive module 41 and IGBT1 G poles, and
An immunity module 72 is equally connected between second drive module 42 and IGBT2 G poles.
In the present embodiment, as shown in Fig. 2 when first coil disk module 11 carries out resonant operational, the first detection is passed through
The detection branch 502 of branch road 501 and second detects B1 point voltages, and when the voltage of B1 points is 0V, control module 60 passes through
One output end PPGO1 output control signals, to open IGBT1 by the first drive module 41；When the second coil disk module 11
When carrying out resonant operational, B2 point voltages are detected by the first detection branch 501 and the 3rd detection branch 503, and in B2 points
When voltage is 0V, control module 60 is by the second output end PPGO2 output control signals, to be opened by the second drive module 42
Logical IGBT2.It is understood that when N coil disk modules 1N carries out resonant operational, pass through the first detection branch 501 and N
Detection branch detects BN point voltages, and when the voltage of BN points is 0V, control module 60 passes through N output ends PPGON outputs
Control signal, to open IGBTN by N drive modules 4N.
Wherein, the resonance potential VA and VB1 at the coil panel L1 both ends in first coil disk module 11, is dropped by electric resistance partial pressure
After pressure, it is connected to first comparator COMP1 and is compared judgement, when VB 1 voltage declines the voltage after partial pressure less than VA points
During voltage after pressure, first comparator COMP1 output levels are overturn, the control module such as MCU port of interrupt INT 2 inspection
After measuring level energizing signal, start internal clocking, the voltage that the time is slightly less than VB1 is reduced to 0V time, control module
First output end PPGO1 exports the control signal for opening IGBT1.It should be noted that in an embodiment of the present invention, comparator
Circuit can be placed on MCU outside, can also be integrated into inside MCU.
In an embodiment of the present invention, the coil panel in N number of coil disk module can work simultaneously, also can be in turn with scanning
Mode work, the same time can be worked with single coil disk, also can multiple coil panels work simultaneously.Also, work simultaneously
Coil panel, its power can be separately adjustable according to culinary art demand in certain scope.
According to one embodiment of present invention, as shown in Fig. 2 power module 20 includes the AC power 201 and right of input
AC power 201 carries out the rectification filtering unit 202 of rectifying and wave-filtering.
The control circuit of electric cooking pot according to embodiments of the present invention, is added by synchronization signal detection module to N number of resonance
The synchronizing signal of each resonance heating circuit in hot loop carries out independent detection, so as to which control module can each work(of independent control
Rate switchs so that each resonance heating circuit can work independently simultaneously, and each resonance heating circuit can also work independently, that is, cause
Each coil disk module can independent heating control simultaneously, also can independent computer heating control, so as to can control electric cooking pot fully to meet
The culinary art demand of user, the life to user are brought convenience.
In addition, embodiments of the invention also proposed a kind of electric cooking pot, it includes the control electricity of above-mentioned electric cooking pot
Road.Wherein, the electric cooking pot can be the household appliances such as electric cooker, electromagnetic oven, electric pressure cooking saucepan.
Electric cooking pot according to embodiments of the present invention, can each power switch of independent control by its control circuit so that
Each resonance heating circuit can work independently simultaneously, and each resonance heating circuit can also work independently, that is, cause each coil panel
Module can independent heating control simultaneously, also can independent computer heating control, so as to which the electric cooking pot of the embodiment of the present invention fully meets to use
The culinary art demand at family, the life to user are brought convenience.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be any
One or more embodiments or example in combine in an appropriate manner.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is by appended claims and its equivalent limits.
Claims (9)
- A kind of 1. control circuit of electric cooking pot, it is characterised in that including：N number of coil disk module, wherein, N is the integer more than or equal to 2；Power module, the power module are connected with N number of coil disk module to be supplied to N number of coil disk module respectively Electricity；N number of power switch, each power switch in N number of power switch and each line in N number of coil disk module Circle disk module, which corresponds, to be connected to form N number of resonance heating circuit；N number of drive module, each drive module in N number of drive module and each power in N number of power switch Switch, which corresponds, to be connected with each power switch described in respective drive；Synchronization signal detection module, the synchronization signal detection module are used for each humorous in N number of resonance heating circuit Shake heating circuit synchronizing signal carry out independent detection；Control module, the control module is respectively connected with the synchronization signal detection module and N number of drive module, described The synchronizing signal that control module detects according to the synchronization signal detection module can control each resonance heating circuit simultaneously only The each resonance heating circuit of vertical work or control works independently；When N is 2, the synchronization signal detection module includes the first detection branch, the second detection branch and the 3rd detection branch And comparing unit, wherein, first detection branch includes：First resistor unit, the first resistor unit include first default resistance of series connection, the first resistor unit One end is connected respectively to one end of first coil disk module and one end of the second coil disk module；First resistor, one end of the first resistor are connected with the other end of the first resistor unit, the first resistor The other end is grounded；First electric capacity, first electric capacity are in parallel with the first resistor；First diode, the anode of first diode are connected with the other end of the first resistor unit, and the described 1st The negative electrode of pole pipe is connected with the power supply of predeterminated voltage.
- 2. the control circuit of electric cooking pot as claimed in claim 1, it is characterised in thatWhen the electric cooking pot needs quickly to be heated with the first heating power, the control module control is described N number of humorous Shake and heating circuit while work；When the electric cooking pot needs uniformly to be heated with the second heating power, control module control in a manner of scanning N number of resonance heating circuit is made to be operated in succession, wherein, second heating power is less than first heating power.
- 3. the control circuit of electric cooking pot as claimed in claim 2, it is characterised in that when the control module is with the scanning Mode when controlling N number of resonance heating circuit to be operated in succession, the control module can be controlled in the same period to A few resonance heating circuit is operated.
- 4. the control circuit of the electric cooking pot as any one of claim 1-3, it is characterised in that the control module is also The heating power of each coil disk module can be carried out separately adjustable to meet the culinary art demand of the electric cooking pot.
- 5. the control circuit of electric cooking pot as claimed in claim 1, it is characterised in that second detection branch includes：Second resistance unit, the second resistance unit include second default resistance of series connection, the second resistance unit One end is connected to the other end of first coil disk module；Second resistance, one end of the second resistance are connected with the other end of the second resistance unit, the second resistance The other end is grounded；Second electric capacity, second electric capacity are in parallel with the second resistance；Second diode, the anode of second diode are connected with the other end of the second resistance unit, and the described 2nd 2 The negative electrode of pole pipe is connected with the power supply of predeterminated voltage.
- 6. the control circuit of electric cooking pot as claimed in claim 5, it is characterised in that the 3rd detection branch includes：3rd resistor unit, the 3rd resistor unit include second default resistance of series connection, the 3rd resistor unit One end is connected to the other end of the second coil disk module；3rd resistor, one end of the 3rd resistor are connected with the other end of the 3rd resistor unit, the 3rd resistor The other end is grounded；3rd electric capacity, the 3rd electric capacity are in parallel with the 3rd resistor；3rd diode, the anode of the 3rd diode are connected with the other end of the 3rd resistor unit, and the described 3rd 2 The negative electrode of pole pipe is connected with the power supply of predeterminated voltage.
- 7. the control circuit of electric cooking pot as claimed in claim 6, it is characterised in that the comparing unit includes：First comparator, the normal phase input end of the first comparator are connected with the anode of second diode, and described first The inverting input of comparator is connected with the anode of first diode, the output end of the first comparator and the control Module is connected；4th electric capacity, the 4th electric capacity are connected in parallel between the normal phase input end and inverting input of the first comparator；Second comparator, the normal phase input end of second comparator are connected with the anode of the 3rd diode, and described second The inverting input of comparator is connected with the anode of first diode, output end and the control of second comparator Module is connected；5th electric capacity, the 5th electric capacity are connected in parallel between the normal phase input end and inverting input of second comparator.
- 8. the control circuit of electric cooking pot as claimed in claim 1, it is characterised in that the power module includes the friendship of input Flow power supply and the rectification filtering unit of rectifying and wave-filtering is carried out to the AC power.
- A kind of 9. electric cooking pot, it is characterised in that the control electricity including the electric cooking pot as any one of claim 1-8 Road.
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| CN201410714343.4A CN105698230B (en) | 2014-11-28 | 2014-11-28 | Electric cooking pot and its control circuit |
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| CN201410714343.4A CN105698230B (en) | 2014-11-28 | 2014-11-28 | Electric cooking pot and its control circuit |
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| CN105698230B true CN105698230B (en) | 2018-02-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107550228A (en) * | 2016-07-01 | 2018-01-09 | 佛山市顺德区美的电热电器制造有限公司 | Pot power supply communication circuit, interior pot and cooking apparatus in one kind |
| CN107734729B (en) * | 2017-10-18 | 2024-01-30 | 广东格兰仕集团有限公司 | Circuit with double IH heating functions |
| 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 |
| CN110338630B (en) * | 2018-04-03 | 2020-11-20 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic heating cooking utensil and heating control circuit and control method thereof |
| CN111713984A (en) * | 2019-03-20 | 2020-09-29 | 伊莱克斯家用电器股份公司 | Kitchen appliance |
| CN113133145B (en) * | 2019-12-31 | 2023-12-22 | 广东美的生活电器制造有限公司 | Cooking appliance, drive control circuit and control method |
| CN114390737A (en) * | 2021-12-17 | 2022-04-22 | 广东美的白色家电技术创新中心有限公司 | Power control circuit and power control method of electromagnetic heating device |
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| CN201110583Y (en) * | 2007-09-30 | 2008-09-03 | 广东格兰仕集团有限公司 | Coil heating disk of electromagnetic furnace |
| CN202110454U (en) * | 2010-03-26 | 2012-01-11 | 九阳股份有限公司 | Control circuit of electromagnetic heating cooking utensil |
| WO2012070320A1 (en) * | 2010-11-22 | 2012-05-31 | 三菱電機株式会社 | Induction heating cooker and method for controlling same |
| CN104033933A (en) * | 2013-03-06 | 2014-09-10 | 美的集团股份有限公司 | Electromagnetic induction heater and control method thereof |
| CN204438245U (en) * | 2014-11-28 | 2015-07-01 | 佛山市顺德区美的电热电器制造有限公司 | Electricity cooking pot and control circuit thereof |
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