CN110446289A - Electromagnetic induction coil heater circuit and method with series parallel resonance handoff functionality - Google Patents
Electromagnetic induction coil heater circuit and method with series parallel resonance handoff functionality Download PDFInfo
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- CN110446289A CN110446289A CN201910745470.3A CN201910745470A CN110446289A CN 110446289 A CN110446289 A CN 110446289A CN 201910745470 A CN201910745470 A CN 201910745470A CN 110446289 A CN110446289 A CN 110446289A
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- 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
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Abstract
The invention discloses a kind of electromagnetic induction coil heater circuits and method with series parallel resonance handoff functionality, belong to electromagnetic induction heating field.Technical solution of the present invention main points are as follows: when needing through the output electric current hot charging diameter of power coil is the knife handle of the first prescribed limit, switch one and switch two are opened, resonant capacitance one and power coil form series resonance, the driving of inversion and corresponding driving circuit through two inversion driving elements, power coil exports the electric current of corresponding frequencies size, heats to the knife handle that diameter is the first prescribed limit；When needing through the output electric current hot charging diameter of power coil is the knife handle of the second prescribed limit, switch one and switch two are turned off, resonant capacitance one is switched on and off a short circuit, resonant capacitance two and power coil form parallel resonance, the driving of inversion and corresponding driving circuit through two inversion driving elements, power coil exports the electric current of corresponding frequencies size, heats to the knife handle that diameter is the second prescribed limit.
Description
Technical field
The present invention relates to electromagnetic induction heating technology, in particular to a kind of electromagnetism sense with series parallel resonance handoff functionality
Answer coil heats circuit and method.
Background technique
The principle of electromagnetic induction heating is: the alternating current that induction heating power generates generates alternation magnetic by inductor
, the electric current of alternation can be generated in the metal being placed in one, since the presence of joule heating effect can make the conductor being placed in one
Fever.I.e. induction heating is that one kind converts electrical energy into magnetic energy, then magnetic energy dress is changed to electric energy, finally by electric energy again thermal energy plus
Hot mode, relative to the heating method of traditional heat transmitting, heating speed is fast, the high heating side to metal of capacity usage ratio
It is just more and more applied in face.The principle of heat-shrinkable knife handle is: using expanding with heat and contract with cold for material, by knife handle retaining part
The interference fit of hole and cutter outer circle comes strength, high-precision clamp-on tool.
Since the size of knife handle is different, power coil needs the alternating current of different frequency that could work normally, this is just needed
The adjusting for wanting resonance circuit to drive, resonance circuit common at present are series resonance and parallel resonance, and working frequency is not in resonance
Point nearby will lead to the reduction of complete machine power factor, and too low power factor can pollute power grid and not meet national standard.It connects humorous
The frequency and current relationship of vibration circuit are as shown in Figure 1.Series resonance driving power coil circuit has three: 1, highest is defeated
Electric current is limited out, the big knife handle relative difficulty of heated dimensions.2, relatively high to power coil inductance required precision.3, right
Resonant capacitance quality requirements are high, and capacitance fade can cause resonance frequency shift, output function decline, will lead to knife handle heating effect
Undesirable, only one resonance point, when frequency is f0, electric current is maximum.
The frequency of antiresonant circuit and current relationship are as shown in Figure 2.
Parallel resonance driving power coil circuit has four: if 1, control frequency anomaly, can make coil current height
In design current, current foldback circuit is caused to act, extreme case will lead to equipment damage.2, to power coil inductance accuracy of measurement
It is required that relatively high.3, more demanding to frequency control and current feedback detection calculations.4, driving IGBT switches in high current
Direction is unfavorable for device steady operation, not high to IGBT device power requirement, only one resonance point, when frequency is f0, electricity
Stream is minimum.
I.e. in the prior art, individual series and parallel resonance drive circuit cannot reach hot charging machine to various sizes knife handle
The requirement precisely heated, and there are security risks.
Summary of the invention
The object of the present invention is to provide a kind of electromagnetic induction coil heater circuit with series parallel resonance handoff functionality and
Method, the current individually serial or parallel connection resonance drive circuit of solution cannot reach hot charging machine and precisely heat to various sizes knife handle
Requirement the problem of.
The present invention solves its technical problem, the technical solution adopted is that: the electromagnetism sense with series parallel resonance handoff functionality
Answer coil heats circuit, including alternating current input terminal, ground wire, rectification circuit, storage capacitor, at least two inversions driving member
Part, driving circuit corresponding with inversion driving element, resonant capacitance one, the switch one in parallel with resonant capacitance one, power coil,
Resonant capacitance two and switch two；
The alternating current input terminal passes through the anode of connection storage capacitor after rectification circuit, the cathode connection of storage capacitor
Ground wire, the anode of the storage capacitor is by an inversion driving element, through driving circuit corresponding with the inversion driving element
Connect respectively with one end of resonant capacitance one and ground wire afterwards, the other end of resonant capacitance respectively with one end of resonant capacitance two and function
One end of rate coil connects, and the other end of resonant capacitance two is connect by switch two with the other end of power coil, the energy storage
The anode of capacitor by another inversion driving element, after driving circuit corresponding with the inversion driving element respectively with it is described
The other end and ground wire of power coil connect；
When needing through the output electric current hot charging diameter of power coil is the knife handle of the first prescribed limit, alternating current is defeated
Enter and hold the alternating current for being passed through relevant voltage size, after the rectified circuit rectifies of the alternating current, charges, charge for storage capacitor
After, switch one and switch two are opened, and resonant capacitance one and power coil form series resonance, through two inversion driving members
The inversion of part and the driving of driving circuit corresponding with inversion driving element, power coil export the electric current of corresponding frequencies size,
The knife handle that diameter is the first prescribed limit is heated；
When needing through the output electric current hot charging diameter of power coil is the knife handle of the second prescribed limit, alternating current is defeated
Enter and hold the alternating current for being passed through relevant voltage size, after the rectified circuit rectifies of the alternating current, charges, charge for storage capacitor
After, switch one and switch two are turned off, and resonant capacitance one is switched on and off a short circuit, and resonant capacitance two and power coil are formed simultaneously
Join resonance, the driving of inversion and driving circuit corresponding with inversion driving element through two inversion driving elements, power coil
The electric current for exporting corresponding frequencies size heats the knife handle that diameter is the second prescribed limit；
Minimum value of the maximum value of shank diameter less than shank diameter in the second prescribed limit in first prescribed limit.
Particularly, the relevant voltage size is 380V.
Further, the inversion driving element is IGBT.
Particularly, first prescribed limit is 3mm~18mm, and the second prescribed limit is 20mm~32mm.
Electromagnetic induction coil adding method with series parallel resonance handoff functionality has series parallel resonance applied to described
The electromagnetic induction coil heater circuit of handoff functionality, includes the following steps:
The alternating current of step 1, alternating current input terminal access 380V voltage swing；
Step 2 pre-processes alternating current；
Step 3, rectification circuit charge pretreated AC rectification for storage capacitor after direct current；
Step 4, storage capacitor charging after, judge the shank diameter of thermal insert knife handle whether in the first prescribed limit,
If so, entering step 5,6 are otherwise entered step；
Step 5 turns on the switch one and switch two, and resonant capacitance one and power coil form series resonance, through two inversions
The inversion of driving element and the driving of driving circuit corresponding with inversion driving element, power coil export corresponding frequencies size
Electric current heats the knife handle that diameter is the first prescribed limit；
Step 6, judge the shank diameter of thermal insert knife handle whether in the second prescribed limit, if so, turn off the switch one and
Switch two, resonant capacitance one are switched on and off a short circuit, and resonant capacitance two and power coil form parallel resonance, drive through two inversions
The inversion of element and the driving of driving circuit corresponding with inversion driving element, power coil export the electricity of corresponding frequencies size
Stream heats the knife handle that diameter is the second prescribed limit, otherwise without heating.
Particularly, in step 2, the pretreatment refers to: being filtered electricity by common mode inductance to the alternating current of input
Magnetic disturbance signal processing.
Further, in step 4-6, first prescribed limit is 3mm~18mm, the second prescribed limit be 20mm~
32mm。
Particularly, in step 5-6, the inversion driving element is IGBT.
The invention has the advantages that heating electricity by the above-mentioned electromagnetic induction coil with series parallel resonance handoff functionality
Road and method, when needing through the output electric current hot charging diameter of power coil is the knife handle of the first prescribed limit, alternating current
Input terminal is passed through the alternating current of relevant voltage size, after the rectified circuit rectifies of the alternating current, charges, fills for storage capacitor
After electricity, switch one and switch two are opened, and resonant capacitance one and power coil form series resonance, are driven through two inversions
The inversion of element and the driving of driving circuit corresponding with inversion driving element, power coil export the electricity of corresponding frequencies size
Stream heats the knife handle that diameter is the first prescribed limit；When needing the output electric current hot charging diameter by power coil to be
When the knife handle of the second prescribed limit, alternating current input terminal is passed through the alternating current of relevant voltage size, the rectified electricity of the alternating current
After the rectification of road, charge for storage capacitor, after charging, switch one and switch two are turned off, and resonant capacitance one is switched on and off
One short circuit, resonant capacitance two and power coil form parallel resonance, inversion through two inversion driving elements and drive with inversion
The driving of the corresponding driving circuit of element, power coil export the electric current of corresponding frequencies size, are the second prescribed limit to diameter
Knife handle heated.
Also, the present invention switches resonant circuit frequency and current relationship figure referring to Fig. 3 in series and parallel, and there are two resonance in the figure
Point, operating frequency range is bigger, and it is more to heat knife handle size category.To keep hot charging machine working performance more stable, and
Reduce safety accident Probability.
Detailed description of the invention
Fig. 1 is the frequency of series resonant circuit in the prior art and current relationship figure；
Fig. 2 is the frequency of antiresonant circuit in the prior art and current relationship figure；
Fig. 3 is to switch resonant circuit frequency and current relationship figure in series and parallel in the present invention；
Fig. 4 is the structural schematic diagram for the electromagnetic induction coil heater circuit that the present invention has series parallel resonance handoff functionality；
Fig. 5 is the flow chart for the electromagnetic induction coil adding method that the present invention has series parallel resonance handoff functionality.
Wherein, D1 is rectifier diode one, and D2 is rectifier diode two, and D3 is rectifier diode three, and D4 is two poles of rectification
Guan Si, D5 are rectifier diode five, and D6 is rectifier diode six, and C1 is storage capacitor, and C2 is resonant capacitance one, and C3 is resonance electricity
Two, K1 of appearance is switch one, and K2 is switch two, and L1 is power coil.
Specific embodiment
With reference to the accompanying drawing, the technical schemes of the invention are described in detail.
Electromagnetic induction coil heater circuit of the present invention with series parallel resonance handoff functionality, including alternating current are defeated
Enter end, ground wire, rectification circuit, storage capacitor C1, at least two inversion driving elements, driving corresponding with inversion driving element electricity
Road, one C2 of resonant capacitance, switch one K1 in parallel with one C2 of resonant capacitance, power coil L1, one C3 of resonant capacitance and switch two
K2。
Wherein, rectification circuit may include one D1 of rectifier diode, two D2 of rectifier diode, three D3 of rectifier diode, rectification
Four D4 of diode, five D5 of rectifier diode and be six D6 of rectifier diode, alternating current input terminal pass through rectification circuit after connect
The anode of storage capacitor C1, the cathode of storage capacitor C1 connect ground wire, and the anode of storage capacitor C1 passes through an inversion driving member
Part is connect with one end of one C2 of resonant capacitance and ground wire, resonance respectively after driving circuit corresponding with the inversion driving element
The other end of capacitor is connect with one end of one end of one C3 of resonant capacitance and power coil L1 respectively, and one C3's of resonant capacitance is another
End is connect by two K2 of switch with the other end of power coil L1, and the anode of storage capacitor C1 passes through another inversion driving member
Part is connect with the other end of power coil L1 and ground wire respectively after driving circuit corresponding with the inversion driving element；
When needing through the output electric current hot charging diameter of power coil L1 is the knife handle of the first prescribed limit, alternating current
Input terminal is passed through the alternating current of relevant voltage size, after the rectified circuit rectifies of the alternating current, charges for storage capacitor C1,
After charging, one K1 of switch and two K2 of switch are opened, and resonant capacitance one C2 and power coil L1 form series resonance, through two
The inversion of a inversion driving element and the driving of driving circuit corresponding with inversion driving element, power coil L1 export respective tones
The electric current of rate size heats the knife handle that diameter is the first prescribed limit；
When needing through the output electric current hot charging diameter of power coil L1 is the knife handle of the second prescribed limit, alternating current
Input terminal is passed through the alternating current of relevant voltage size, after the rectified circuit rectifies of the alternating current, charges for storage capacitor C1,
After charging, one K1 of switch and two K2 of switch are turned off, one C2 of resonant capacitance be switched on and off a K1 short circuit, one C3 of resonant capacitance and
Power coil L1 forms parallel resonance, inversion and driving circuit corresponding with inversion driving element through two inversion driving elements
Driving, power coil L1 export corresponding frequencies size electric current, to diameter be the second prescribed limit knife handle heat；
Minimum value of the maximum value of shank diameter less than shank diameter in the second prescribed limit in first prescribed limit.
Wherein, with series parallel resonance handoff functionality electromagnetic induction coil heater circuit structural schematic diagram referring to fig. 4,
In the figure, including four inversion driving elements, can also the number as needed to inversion driving element select.
In practical application, in order to input to the electric current of circuit with stable, relevant voltage is preferably sized to 380V.
For the operating condition for cooperating knife handle to heat, and realize the inversion of alternating current, inversion driving element is preferably IGBT.
In above-mentioned prescribed limit, specific size range when being heated according to knife handle, the first prescribed limit be preferably 3mm~
18mm, the second prescribed limit are preferably 20mm~32mm.
Electromagnetic induction coil adding method with series parallel resonance handoff functionality has series parallel resonance applied to above-mentioned
The electromagnetic induction coil heater circuit of handoff functionality, flow chart is referring to Fig. 5, wherein this method comprises the following steps:
The alternating current of step 1, alternating current input terminal access 380V voltage swing.
Step 2 pre-processes alternating current.
Step 3, rectification circuit charge pretreated AC rectification for storage capacitor C1 after direct current.
After step 4, storage capacitor C1 charging, judge the shank diameter of thermal insert knife handle whether in the first prescribed limit
It is interior, if so, entering step 5, otherwise enter step 6.
Step 5 turns on the switch two K2 of a K1 and switch, and resonant capacitance one C2 and power coil L1 form series resonance, warp
The inversion of two inversion driving elements and the driving of driving circuit corresponding with inversion driving element, power coil L1 output phase are answered
The electric current of frequency size heats the knife handle that diameter is the first prescribed limit.
Step 6 judges the shank diameter of thermal insert knife handle whether in the second prescribed limit, if so, turning off the switch a K1
And two K2 of switch, one C2 of resonant capacitance are switched on and off K1 short circuit, resonant capacitance one C3 and power coil L1 form parallel resonance, warp
The inversion of two inversion driving elements and the driving of driving circuit corresponding with inversion driving element, power coil L1 output phase are answered
The electric current of frequency size heats the knife handle that diameter is the second prescribed limit, otherwise without heating.
In the step 2 of the above method, pretreatment refers to: being filtered electromagnetism by common mode inductance to the alternating current of input and does
Disturb signal processing.
In step 4-6, specific size range when being heated according to knife handle, the first prescribed limit is preferably 3mm~18mm, and
Two prescribed limits are preferably 20mm~32mm.
In step 5-6, for the operating condition for cooperating knife handle to heat, and the inversion of alternating current is realized, inversion driving element is preferred
For IGBT.
In the prior art, resonance circuit or it is series resonant circuit or is antiresonant circuit, there is no by two kind
The combined circuit drives mode of resonance manner.
And in the present invention, by series, parallel free switching LC oscillating circuit, make the resonance point of power coil L1 by one
Increasing is two, so that effective heating frequency range is broadened, can heat more size knife handles.Reduce power coil L1 inductance accuracy of measurement
Requirement, to reduce the Costco Wholesale of coil.When controlling frequency anomaly, the power of hot charging machine complete machine is lower than specified function
Rate avoids such as electric current excessive and burns the generation of circuit board safety accident.It can carry out declining for compensating electric capacity quality with switching circuit
Subtract, extends the service life of capacitor.
Also, the electromagnetic induction coil heater circuit with series parallel resonance handoff functionality proposed through the invention and side
Method can reach following the utility model has the advantages that 1, effective heating frequency range is wide, and heatable knife handle size is more.2, to power coil
L1 inductance required precision relative reduction.If 3, controlling frequency anomaly, complete machine power can be made lower than design power so opposite peace
Entirely.4, partition capacitance quality decaying can be compensated by switching circuit.
In addition, the present invention switches in series and parallel in resonant circuit frequency and current relationship figure, there are two resonance point, working frequencies
Range is bigger, and it is more to heat knife handle size category.To keep hot charging machine working performance more stable, and reduce safety accident
Probability.
Claims (8)
1. the electromagnetic induction coil heater circuit with series parallel resonance handoff functionality, which is characterized in that defeated including alternating current
Enter end, ground wire, rectification circuit, storage capacitor, at least two inversion driving elements, driving corresponding with inversion driving element electricity
Road, resonant capacitance one, the switch one in parallel with resonant capacitance one, power coil, resonant capacitance two and switch two；
The alternating current input terminal passes through the anode of connection storage capacitor after rectification circuit, and the cathode of storage capacitor connects ground
Line, the anode of the storage capacitor is by an inversion driving element, after driving circuit corresponding with the inversion driving element
Connect respectively with one end of resonant capacitance one and ground wire, the other end of resonant capacitance respectively with one end of resonant capacitance two and power
One end of coil connects, and the other end of resonant capacitance two is connect by switch two with the other end of power coil, the energy storage electricity
The anode of appearance by another inversion driving element, after driving circuit corresponding with the inversion driving element respectively with the function
The other end and ground wire of rate coil connect；
When needing through the output electric current hot charging diameter of power coil is the knife handle of the first prescribed limit, alternating current input terminal
It is passed through the alternating current of relevant voltage size, after the rectified circuit rectifies of the alternating current, is charged for storage capacitor, charging finishes
Afterwards, switch one and switch two are opened, and resonant capacitance one and power coil form series resonance, through two inversion driving elements
Inversion and the driving of driving circuit corresponding with inversion driving element, power coil exports the electric current of corresponding frequencies size, to straight
Diameter is that the knife handle of the first prescribed limit is heated；
When needing through the output electric current hot charging diameter of power coil is the knife handle of the second prescribed limit, alternating current input terminal
It is passed through the alternating current of relevant voltage size, after the rectified circuit rectifies of the alternating current, is charged for storage capacitor, charging finishes
Afterwards, switch one and switch two are turned off, and resonant capacitance one is switched on and off a short circuit, and resonant capacitance two and power coil form in parallel humorous
Vibration, the driving of inversion and driving circuit corresponding with inversion driving element through two inversion driving elements, power coil output
The electric current of corresponding frequencies size heats the knife handle that diameter is the second prescribed limit；
Minimum value of the maximum value of shank diameter less than shank diameter in the second prescribed limit in first prescribed limit.
2. the electromagnetic induction coil heater circuit according to claim 1 with series parallel resonance handoff functionality, feature
It is, the relevant voltage size is 380V.
3. the electromagnetic induction coil heater circuit according to claim 1 with series parallel resonance handoff functionality, feature
It is, the inversion driving element is IGBT.
4. the electromagnetic induction coil heater circuit according to claim 1 with series parallel resonance handoff functionality, feature
It is, first prescribed limit is 3mm~18mm, and the second prescribed limit is 20mm~32mm.
5. the electromagnetic induction coil adding method with series parallel resonance handoff functionality is applied to claim 1-4 any one institute
The electromagnetic induction coil heater circuit with series parallel resonance handoff functionality stated, which comprises the steps of:
The alternating current of step 1, alternating current input terminal access 380V voltage swing；
Step 2 pre-processes alternating current；
Step 3, rectification circuit charge pretreated AC rectification for storage capacitor after direct current；
Step 4, storage capacitor charging after, judge the shank diameter of thermal insert knife handle whether in the first prescribed limit, if so,
5 are then entered step, otherwise enters step 6；
Step 5 turns on the switch one and switch two, and resonant capacitance one and power coil form series resonance, drive through two inversions
The inversion of element and the driving of driving circuit corresponding with inversion driving element, power coil export the electricity of corresponding frequencies size
Stream heats the knife handle that diameter is the first prescribed limit；
Step 6 judges the shank diameter of thermal insert knife handle whether in the second prescribed limit, if so, turning off the switch one and switch
Two, resonant capacitance one is switched on and off a short circuit, and resonant capacitance two and power coil form parallel resonance, through two inversion driving elements
Inversion and driving circuit corresponding with inversion driving element driving, power coil export corresponding frequencies size electric current, it is right
Diameter is that the knife handle of the second prescribed limit is heated, otherwise without heating.
6. the electromagnetic induction coil adding method according to claim 5 with series parallel resonance handoff functionality, feature exist
In in step 2, the pretreatment refers to: being filtered electromagnetic interference signal processing by common mode inductance to the alternating current of input.
7. the electromagnetic induction coil adding method according to claim 5 with series parallel resonance handoff functionality, feature exist
In in step 4-6, first prescribed limit is 3mm~18mm, and the second prescribed limit is 20mm~32mm.
8. the electromagnetic induction coil adding method according to claim 5 with series parallel resonance handoff functionality, feature exist
In in step 5-6, the inversion driving element is IGBT.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910745470.3A CN110446289B (en) | 2019-08-13 | 2019-08-13 | Electromagnetic induction coil heating circuit with series-parallel resonance switching function and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910745470.3A CN110446289B (en) | 2019-08-13 | 2019-08-13 | Electromagnetic induction coil heating circuit with series-parallel resonance switching function and method |
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| CN110446289A true CN110446289A (en) | 2019-11-12 |
| CN110446289B CN110446289B (en) | 2021-08-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111342568A (en) * | 2020-03-30 | 2020-06-26 | 重庆理工大学 | Series-parallel resonance convertible wireless charging transmitting circuit and control method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005093090A (en) * | 2003-09-12 | 2005-04-07 | Hitachi Hometec Ltd | Induction heating cooker |
| CN2814872Y (en) * | 2005-07-28 | 2006-09-06 | 西安博大电炉有限公司 | Medium frequency inductive heating power regulator |
| CN1937863A (en) * | 2005-09-16 | 2007-03-28 | 日立空调·家用电器株式会社 | Induction heating cooker |
| CN106136843A (en) * | 2015-04-07 | 2016-11-23 | 佛山市顺德区美的电热电器制造有限公司 | Cooking apparatus and the electric heater unit for cooking apparatus |
| CN205726493U (en) * | 2016-05-04 | 2016-11-23 | 九阳股份有限公司 | A kind of electromagnetic heating control system adapting to the heating of unlike material pan |
| CN108605385A (en) * | 2015-12-28 | 2018-09-28 | 海默有限公司 | Shrinking device capable of fast with heating control apparatus |
-
2019
- 2019-08-13 CN CN201910745470.3A patent/CN110446289B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005093090A (en) * | 2003-09-12 | 2005-04-07 | Hitachi Hometec Ltd | Induction heating cooker |
| CN2814872Y (en) * | 2005-07-28 | 2006-09-06 | 西安博大电炉有限公司 | Medium frequency inductive heating power regulator |
| CN1937863A (en) * | 2005-09-16 | 2007-03-28 | 日立空调·家用电器株式会社 | Induction heating cooker |
| CN106136843A (en) * | 2015-04-07 | 2016-11-23 | 佛山市顺德区美的电热电器制造有限公司 | Cooking apparatus and the electric heater unit for cooking apparatus |
| CN108605385A (en) * | 2015-12-28 | 2018-09-28 | 海默有限公司 | Shrinking device capable of fast with heating control apparatus |
| CN205726493U (en) * | 2016-05-04 | 2016-11-23 | 九阳股份有限公司 | A kind of electromagnetic heating control system adapting to the heating of unlike material pan |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111342568A (en) * | 2020-03-30 | 2020-06-26 | 重庆理工大学 | Series-parallel resonance convertible wireless charging transmitting circuit and control method |
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| CN110446289B (en) | 2021-08-17 |
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