CN108024406A - Electromagnetic heating system and its control method and device - Google Patents
Electromagnetic heating system and its control method and device Download PDFInfo
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- CN108024406A CN108024406A CN201610973468.8A CN201610973468A CN108024406A CN 108024406 A CN108024406 A CN 108024406A CN 201610973468 A CN201610973468 A CN 201610973468A CN 108024406 A CN108024406 A CN 108024406A
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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
- H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like
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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
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/0252—Domestic applications
- H05B1/0258—For cooking
- H05B1/0261—For cooking of food
- H05B1/0266—Cooktops
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Control Of Resistance Heating (AREA)
- Electric Stoves And Ranges (AREA)
Abstract
The invention discloses a kind of control method of electromagnetic heating system, comprise the following steps：Obtain the target heating power of electromagnetic heating system；Judge whether the target heating power is less than predetermined power；If the target heating power is less than the predetermined power, then controlling cycle is opened each, first driving voltage of first driving voltage of the first preset time, the second driving voltage of the second preset time and the 3rd preset time power switch pipe into the electromagnetic heating system is provided successively, wherein, first driving voltage is less than second driving voltage, it can realize that continuous low power heats, effectively suppress pulse current when power switch pipe is opened at the same time, improve the culinary art experience of user.Control device and a kind of electromagnetic heating system the invention also discloses a kind of electromagnetic heating system.
Description
Technical field
The present invention relates to household electrical appliance technical field, more particularly to a kind of control method of electromagnetic heating system, Yi Zhong electricity
The control device of magnetic heating system and a kind of electromagnetic heating system.
Background technology
In correlation technique, the electromagnetic resonant circuit generally use parallel resonance mode of single IGBT, and realizing high-power fortune
Resonant parameter is set on the premise of row, as shown in Figure 1, when being heated with high power, due to the matched relation of resonant parameter,
Leading voltage thus during IGBT conductings is very small, and the pulse current of IGBT is also very small.But its there are the problem of be, such as
Fruit is heated using continuous low power, as shown in Fig. 2, then the leading voltage of IGBT is very high, causes the pulse current of IGBT very
Greatly, it is particularly easy to use limit value beyond IGBT, damages IGBT.If low work(is realized using duty cycle mode as shown in Figure 3
Rate heats, and interruption mode of heating may influence cooking function, for example, cook congee when easily overflow, reduce the culinary art body of user
Test.
The content of the invention
It is contemplated that solve at least some of the technical problems in related technologies.For this reason, the present invention
First purpose be to propose a kind of control method of electromagnetic heating system, can realize that continuous low power heats, while effectively
Suppress the pulse current of power switch pipe.
Second object of the present invention is to propose a kind of control device of electromagnetic heating system, the of the invention the 3rd mesh
Be propose a kind of electromagnetic heating system.
To reach above-mentioned purpose, first aspect present invention embodiment proposes a kind of control method of electromagnetic heating system,
Comprise the following steps：Obtain the target heating power of electromagnetic heating system；It is default to judge whether the target heating power is less than
Power；If the target heating power is less than the predetermined power, controlling cycle is opened each, it is pre- to provide first successively
If the second driving voltage of the first driving voltage of time, the second preset time and the first driving electricity of the 3rd preset time
Power switch pipe in the electromagnetic heating system is depressed into, wherein, first driving voltage is less than second driving voltage.
The control method of the electromagnetic heating system proposed according to embodiments of the present invention, obtains the mesh of electromagnetic heating system first
Mark heating power；Then judge whether target heating power is less than predetermined power；If target heating power is less than predetermined power,
Controlling cycle then is opened each, provides the first driving voltage of the first preset time successively, the second of the second preset time drives
Dynamic voltage and the first driving voltage of the 3rd the preset time power switch pipe into electromagnetic heating system, it is continuous so as to realize
Low-power heats, while effectively suppresses the pulse current of power switch pipe, improves the culinary art experience of user.
In addition, the control method of electromagnetic heating system according to the above embodiment of the present invention can also have what is added as follows
Technical characteristic：
According to one embodiment of present invention, if the target heating power is more than or equal to the predetermined power,
Controlling cycle each is opened, persistently provides second driving voltage to the power switch pipe.
According to one embodiment of present invention, first driving voltage is more than or equal to 5V and is less than or equal to 14.5V, described
Second driving voltage is more than or equal to 15V.
According to one embodiment of present invention, first preset time is more than or equal to 0.5us and is less than or equal to 5us, institute
State the 3rd preset time and be less than or equal to 5us.
To reach above-mentioned purpose, second aspect of the present invention embodiment proposes a kind of control device of electromagnetic heating system,
Including：Driving unit, the driving unit is connected with the control terminal of power switch pipe in the electromagnetic heating system, to drive
State power switch pipe；Acquiring unit, the acquiring unit are used for the target heating power for obtaining electromagnetic heating system；Control is single
Member, described control unit are connected with the acquiring unit and the driving unit respectively, and described control unit is used to judge described
Whether target heating power is less than predetermined power, and when the target heating power is less than the predetermined power, is opened each
Logical controlling cycle, controls the driving unit to provide the first driving voltage of the first preset time, the second preset time successively
Second driving voltage and first driving voltage of the 3rd the preset time power switch pipe into the electromagnetic heating system, its
In, first driving voltage is less than second driving voltage.
The control device of the electromagnetic heating system proposed according to embodiments of the present invention, electromagnetic heating is obtained by acquiring unit
The target heating power of system, then control unit judge whether the target heating power is less than predetermined power, and in target
When heating power is less than predetermined power, controlling cycle is opened each, control driving unit provides the first preset time successively
First driving voltage of the first driving voltage, the second driving voltage of the second preset time and the 3rd preset time is to electromagnetic heating
Power switch pipe in system, thus, it is possible to realize that continuous low power heats, while effectively suppresses arteries and veins when power switch pipe is opened
Electric current is rushed, improves the culinary art experience of user.
In addition, the control method of electromagnetic heating system according to the above embodiment of the present invention can also have what is added as follows
Technical characteristic：
According to one embodiment of present invention, described control unit is additionally operable to be more than or equal to institute in the target heating power
When stating predetermined power, controlling cycle is opened each, controls the driving unit persistently to provide second driving voltage to institute
State power switch pipe.
According to one embodiment of present invention, first driving voltage is more than or equal to 5V and is less than or equal to 14.5V, described
Second driving voltage is more than or equal to 15V.
According to one embodiment of present invention, first preset time is more than or equal to 0.5us and is less than or equal to 5us, institute
State the 3rd preset time and be less than or equal to 5us.
To reach above-mentioned purpose, third aspect present invention embodiment proposes a kind of electromagnetic heating system, it includes above-mentioned
The control device of the electromagnetic heating system of embodiment.
The electromagnetic heating system proposed according to embodiments of the present invention, is filled by the control being arranged in electromagnetic heating system
Put, can realize that continuous low power heats, while effectively suppress pulse current when power switch pipe is opened, improve cooking for user
Prepare food experience.
Brief description of the drawings
Fig. 1 is the drive waveforms schematic diagram of IGBT when electromagnetic heating system is heated with high power in correlation technique；
Fig. 2 is the drive waveforms signal of IGBT when electromagnetic heating system is heated with continuous low power in correlation technique
Figure；
Fig. 3 is the drive waveforms that electromagnetic heating system carries out TGBT during low-power heating in a manner of duty cycle in correlation technique
Schematic diagram；
Fig. 4 is the flow chart of the control method of electromagnetic heating system according to embodiments of the present invention；
Fig. 5 is the drive waveforms of IGBT when the electromagnetic heating system low-power of a specific embodiment according to the present invention heats
Schematic diagram；
Fig. 6 is the enlarged drawing of part A in Fig. 5；
Fig. 7 is the block diagram of the control device of electromagnetic heating system according to embodiments of the present invention；And
Fig. 8 is the block diagram of electromagnetic heating system according to embodiments of the present invention.
Embodiment
The embodiment of the present invention is 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 has the function of same or like element.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Add with reference to the accompanying drawings come the control method of the electromagnetic heating system that describes to propose according to embodiments of the present invention, electromagnetism
The control device and electromagnetic heating system of hot systems.
Fig. 4 is the flow chart of the control method of electromagnetic heating system according to embodiments of the present invention.As shown in figure 4, the control
Method processed comprises the following steps：
S101：Obtain the target heating power W1 of electromagnetic heating system；
Wherein, target heating power W1 is the heating power that electromagnetic heating system reaches needed under different culinary art parameters.
For example, when user wants to boil milled congee, pattern of cooking congee, electromagnetic heating system can be selected on the control panel of electromagnetic heating system
Into the pattern of cooking congee, electromagnetic heating system can carry out low-power heating with the heating power of 800W under the pattern of cooking congee, right at this time
The target heating power answered is 800W.
S102：Judge whether target heating power W1 is less than predetermined power W2；
Wherein, predetermined power W2 can be the performance number demarcated in electromagnetic heating system according to actual conditions, work as target
When heating power W1 is less than predetermined power W2, judge that electromagnetic heating system heats for low-power.
S103：If target heating power W1 is less than predetermined power W2, controlling cycle is opened each, provides successively
First driving voltage V1 of one preset time T 1, the second driving voltage V2 of the second preset time T 2 and the 3rd preset time T 3
First driving voltage V1 power switch pipes into electromagnetic heating system, wherein, the first driving voltage V1 is less than the second driving voltage
V2。
That is, when target heating power W1 is less than predetermined power W2, electromagnetic heating system adds low-power is carried out
Heat, at this time, shown in Fig. 5 and Fig. 6, can use male format driving power switching tube, i.e., open control in each of power switch pipe
In cycle processed, first using the first driving voltage V1 driving power switching tubes, so that power switch pipe is operated in magnifying state, effectively
Suppress pulse current when power switch pipe is opened, and using the second driving voltage V2 driving work(after the first preset time T 1
Rate switching tube, so that power switch pipe is operated in saturation conduction state, i.e. driving power switching tube is normally open-minded, and pre- second
If using the first driving voltage V1 driving power switching tubes after time T2, continue the 3rd preset time T 3, so that power switch pipe
It is operated in magnifying state.
According to one embodiment of present invention, if target heating power W1 is more than or equal to predetermined power W2, each
Controlling cycle is opened, persistently provides the second driving voltage V2 to power switch pipe.
That is, when target heating power W1 is more than or equal to predetermined power W2, electromagnetic heating system will carry out Gao Gong
Rate heats, at this time, can be directly just normally opened only with the second driving voltage V2 driving power switching tubes, i.e. driving power switching tube
It is logical.
According to one embodiment of present invention, the first driving voltage V1 is more than or equal to 5V and is less than or equal to 14.5V, and second drives
Dynamic voltage V2 is more than or equal to 15V.
According to one embodiment of present invention, the first preset time T 1 is more than or equal to 0.5us and is less than or equal to 5us, and the 3rd
Preset time T 3 is less than or equal to 5us.
For example, with reference to shown in Fig. 5 and Fig. 6, predetermined power is W2 such as 1000W, when user selects electromagnetic heating system
System cook congee pattern when, it is assumed that the corresponding target heating power of pattern of cooking congee is W1 such as 800W, then can determine whether out that target adds
Thermal power W1 is less than W2, and then opens controlling cycle each, can first provide the first driving voltage V1 such as 9V to power switch
Such as IGBT is managed, when 9V voltages drive IGBT, IGBT is operated in magnifying state, and the constant C electrode currents of IGBT are 22A or so,
So as to effectively inhibit pulse current.After the first such as 2us of preset time T 1 is driven with the first driving voltage V1, there is provided the
Two driving voltage V2 such as 15V are to power switch pipe, after the second preset time T 2 is driven with the second driving voltage V2, there is provided
First driving voltage V1 such as 9V continue the 3rd such as 5us of preset time T 3 to power switch pipe.Thus, controllable electromagnetism adds
Hot systems carry out continuous low power heating according to the control method of previous embodiment, avoid interruption from being sticking and overflow caused by heating
The problems such as.
When user selects the chafing dish pattern of electromagnetic heating system, it is assumed that the corresponding target heating power of chafing dish pattern is
W1 ' such as 2000W, then it can determine whether out that target heating power W1 ' is more than W2, and then controlling cycle opened each, can be direct
The second driving voltage V2 such as 15V are provided to power switch pipe, it is normally open-minded with driving power switching tube.
It should be noted that in embodiments of the present invention, power switch pipe is switched on or off under the driving of driving unit,
It can be exported to the driving voltage of power switch pipe, such as controlled to switch driving unit by switching the supply voltage of driving unit
It is pre- to power switch pipe, control second to export the first driving voltage V1 for driving unit when first default power supply is powered for driving unit
Driving unit exports the second driving voltage V2 to power switch pipe, the electricity of the first default power supply when if power supply is powered for driving unit
VCC is pressed to be less than the voltage VDD of the second default power supply.
The control method of the electromagnetic heating system proposed according to embodiments of the present invention, obtains the mesh of electromagnetic heating system first
Mark heating power；Then judge whether target heating power is less than predetermined power；If target heating power is less than predetermined power,
Controlling cycle then is opened each, provides the first driving voltage of the first preset time successively, the second of the second preset time drives
Dynamic voltage and the first driving voltage of the 3rd the preset time power switch pipe into electromagnetic heating system, thus, it is possible to the company of realization
Continuous low-power heating, while effectively suppress pulse current when power switch pipe is opened, improve the culinary art experience of user.
In addition, Fig. 7 is the block diagram of the control device of electromagnetic heating system according to embodiments of the present invention.Such as Fig. 7
It is shown, the control device of the electromagnetic heating system of the embodiment of the present invention also, including：Driving unit 10, acquiring unit 20 and control
Unit 30.
Wherein, driving unit 10 is connected with the control terminal of power switch pipe in electromagnetic heating system 40, is opened with driving power
Close pipe 40；Acquiring unit 20 is used for the target heating power W1 for obtaining electromagnetic heating system；Control unit 30 is respectively with obtaining list
Member 20 is connected with driving unit 10, control unit 30 for judging whether target heating power W1 is less than predetermined power W2, and
When target heating power W1 is less than predetermined power W2, controlling cycle is opened each, control driving unit 10 provides first successively
The of first driving voltage V1 of preset time T 1, the second driving voltage V2 of the second preset time T 2 and the 3rd preset time T 3
One driving voltage V1 power switch pipe 40 into electromagnetic heating system, wherein, the first driving voltage V1 is less than the second driving voltage
V2。
That is, when target heating power W1 is less than predetermined power W2, electromagnetic heating system adds low-power is carried out
Heat, at this time, shown in Fig. 5 and Fig. 6, can use male format driving power switching tube, i.e., open control in each of power switch pipe
In cycle processed, first using the first driving voltage V1 driving power switching tubes, so that power switch pipe is operated in magnifying state, effectively
Suppress pulse current when power switch pipe is opened, and using the second driving voltage V2 driving work(after the first preset time T 1
Rate switching tube, so that power switch pipe is operated in saturation conduction state, i.e. driving power switching tube is normally open-minded, and pre- second
If using the first driving voltage V1 driving power switching tubes after time T2, continue the 3rd preset time T 3 so that power switch plumber
Make in magnifying state.
According to one embodiment of present invention, control unit 30 is additionally operable to be more than or equal to default work(in target heating power W1
During rate W2, controlling cycle is opened each, control driving unit 10 persistently provides the second driving voltage V2 to power switch pipe 40.
According to one embodiment of present invention, the first driving voltage V1 is more than or equal to 5V and is less than or equal to 14.5V, and second drives
Dynamic voltage V2 is more than or equal to 15V.
According to one embodiment of present invention, the first preset time T 1 is more than or equal to 0.5us and is less than or equal to 5us, and the 3rd
Preset time T 3 is less than or equal to 5us.
For example, with reference to shown in Fig. 5 and Fig. 6, predetermined power is W2 such as 1000W, when user selects electromagnetic heating system
System cook congee pattern when, it is assumed that the corresponding target heating power of pattern of cooking congee is W1 such as 800W, and acquiring unit 20 obtains currently
Target heating power W1 be 800W, and control unit 30 judges that current goal heating power W1 is less than predetermined power W2, into
And controlling cycle is opened each, control unit 30 can first control driving unit 10 to provide the first driving voltage V1 such as 9V extremely
Power switch pipe such as IGBT, when 9V voltages drive IGBT, IGBT is operated in magnifying state, and the C electrode currents of IGBT are constant to be
22A or so, so as to effectively inhibit pulse current.And the first such as 2us of preset time T 1 is being driven with the first driving voltage V1
Afterwards, control unit 30 controls driving unit 10 to provide the second driving voltage V2 such as 15V to power switch pipe, and with second
After driving voltage V2 drives the second preset time T 2, control unit 30 controls driving unit 10 to provide the first driving voltage V1
Such as 9V to power switch pipe, continue the 3rd such as 5us of preset time T 3, thus, control unit 30 can control electromagnetic heating system
According to the control mode of previous embodiment carry out continuous low power heating, avoid interruption heat caused by be sticking with spilling etc. ask
Topic.
When user selects the chafing dish pattern of electromagnetic heating system, it is assumed that the corresponding target heating power of chafing dish pattern is
W1 ' such as 2000W, it is 2000W that acquiring unit 20, which obtains current goal power W1 ', and control unit 30 judges target power
W1 ' is more than predetermined power W2, and then opens controlling cycle each, can directly provide the second driving voltage V2 such as 15V to work(
Rate switching tube 10, it is normally open-minded with driving power switching tube 10.
The control device of the electromagnetic heating system proposed according to embodiments of the present invention, electromagnetic heating is obtained by acquiring unit
The target heating power of system, then control unit judge whether the target heating power is less than predetermined power, and in target
When heating power is less than predetermined power, controlling cycle is opened each, control driving unit provides the first preset time successively
First driving voltage of the first driving voltage, the second driving voltage of the second preset time and the 3rd preset time is to electromagnetic heating
Power switch pipe in system, thus, it is possible to realize that continuous low power heats, while effectively suppresses arteries and veins when power switch pipe is opened
Electric current is rushed, improves the culinary art experience of user.
In addition, the embodiment of the present invention also proposed a kind of electromagnetic heating system.
Fig. 8 is the block diagram of electromagnetic heating system according to embodiments of the present invention.As shown in figure 8, electromagnetic heating system
System 50 includes：The control device 60 of the electromagnetic heating system of above-described embodiment.
A specific example according to the present invention, electromagnetic heating system are electromagnetic oven, electromagnetic rice cooker or prevention electromagnetic pressure cooker
Deng.
The electromagnetic heating system proposed according to embodiments of the present invention, is filled by the control being arranged in electromagnetic heating system
Put, can realize that continuous low power heats, while effectively suppress pulse current when power switch pipe is opened, improve cooking for user
Prepare food experience.
In the description of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be based on orientation shown in the drawings or
Position relationship, is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, " multiple " are meant that at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
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 of the present invention or example.In the present specification, schematic expression of the above terms is not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
Combined in an appropriate manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this area
Art personnel can be tied the different embodiments or example described in this specification and different embodiments or exemplary feature
Close and combine.
Although the embodiment of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (9)
1. a kind of control method of electromagnetic heating system, it is characterised in that comprise the following steps：
Obtain the target heating power of electromagnetic heating system；
Judge whether the target heating power is less than predetermined power；
If the target heating power is less than the predetermined power, controlling cycle is opened each, it is pre- to provide first successively
If the second driving voltage of the first driving voltage of time, the second preset time and the first driving electricity of the 3rd preset time
Power switch pipe in the electromagnetic heating system is depressed into, wherein, first driving voltage is less than second driving voltage.
2. the control method of electromagnetic heating system according to claim 1, it is characterised in that if the target heats work(
Rate is more than or equal to the predetermined power, then opens controlling cycle each, persistently provides second driving voltage to the work(
Rate switching tube.
3. the control method of electromagnetic heating system according to claim 1, it is characterised in that first driving voltage is big
In equal to 5V and being less than or equal to 14.5V, second driving voltage is more than or equal to 15V.
4. the control method of electromagnetic heating system according to claim 1, it is characterised in that first preset time is big
In equal to 0.5us and being less than or equal to 5us, the 3rd preset time is less than or equal to 5us.
A kind of 5. control device of electromagnetic heating system, it is characterised in that including：
Driving unit, the driving unit is connected with the control terminal of power switch pipe in the electromagnetic heating system, to drive
State power switch pipe；
Acquiring unit, the acquiring unit are used for the target heating power for obtaining electromagnetic heating system；
Control unit, described control unit are connected with the acquiring unit and the driving unit respectively, and described control unit is used
In judging whether the target heating power is less than predetermined power, and it is less than the predetermined power in the target heating power
When, controlling cycle is opened each, controls the driving unit to provide the first driving voltage of the first preset time, second successively
Second driving voltage of preset time and first driving voltage of the 3rd the preset time work(into the electromagnetic heating system
Rate switching tube, wherein, first driving voltage is less than second driving voltage.
6. the control device of electromagnetic heating system according to claim 5, it is characterised in that described control unit is additionally operable to
When the target heating power is more than or equal to the predetermined power, controlling cycle is opened each, controls the driving unit
Second driving voltage is persistently provided to the power switch pipe.
7. the control device of electromagnetic heating system according to claim 5, it is characterised in that first driving voltage is big
In equal to 5V and being less than or equal to 14.5V, second driving voltage is more than or equal to 15V.
8. the control device of electromagnetic heating system according to claim 5, it is characterised in that first preset time is big
In equal to 0.5us and being less than or equal to 5us, the 3rd preset time is less than or equal to 5us.
9. a kind of electromagnetic heating system, it is characterised in that including the electromagnetic heating system according to any one of claim 5-8
The control device of system.
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| CN201610973468.8A CN108024406B (en) | 2016-11-03 | 2016-11-03 | Electromagnetic heating system and control method and device thereof |
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|---|---|---|---|
| CN201610973468.8A CN108024406B (en) | 2016-11-03 | 2016-11-03 | Electromagnetic heating system and control method and device thereof |
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| CN108024406B CN108024406B (en) | 2021-01-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111385926A (en) * | 2018-12-29 | 2020-07-07 | 佛山市顺德区美的电热电器制造有限公司 | Control method and device of electromagnetic heating appliance and electromagnetic heating appliance |
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| CN111385926B (en) * | 2018-12-29 | 2022-03-22 | 佛山市顺德区美的电热电器制造有限公司 | Control method and device of electromagnetic heating appliance and electromagnetic heating appliance |
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| CN108024406B (en) | 2021-01-19 |
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