CN208658971U - The drive control circuit of electromagnetic heating cooking utensil and its IGBT pipe - Google Patents
The drive control circuit of electromagnetic heating cooking utensil and its IGBT pipe Download PDFInfo
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- CN208658971U CN208658971U CN201820607134.3U CN201820607134U CN208658971U CN 208658971 U CN208658971 U CN 208658971U CN 201820607134 U CN201820607134 U CN 201820607134U CN 208658971 U CN208658971 U CN 208658971U
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Abstract
The utility model discloses the drive control circuit of a kind of electromagnetic heating cooking utensil and its IGBT pipe, the control circuit, comprising: control module controls signal to export IGBT by signal output port；IGBT conducting voltage detection module, the conducting voltage to the IGBT pipe that will test are sent to the driving chip in IGBT drive module；IGBT drive module; driving chip in IGBT drive module successively exports amplification region driving voltage and saturation region driving voltage to IGBT pipe by drive output mouth according to the IGBT control signal received; so that IGBT pipe carries out soft unlatching when opening every time; and when according to conducting voltage judging that IGBT pipe breaks down feedback fault-signal to control module; so that control module carries out protection control to IGBT pipe according to the fault-signal that protection detection port receives; to realize IGBT pipe work state-detection and soft unlatching, the reliability of IGBT pipe work is improved.
Description
Technical field
The utility model relates to field of home appliance technology, in particular to IGBT in a kind of electromagnetic heating cooking utensil
The drive control circuit and one kind of (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor) pipe
Electromagnetic heating cooking utensil.
Background technique
Currently, the driving circuit for the IGBT pipe being applied in electromagnetic heating cooking utensil is generally resolution element triode group
At push-pull circuit, for controlling being switched on or off for IGBT pipe, but during controlling IGBT pipe, IGBT pipe
It will appear the insecure problem of work.
Utility model content
The utility model is intended to one of the technical issues of at least solving in the related technology to a certain extent.For this purpose, this reality
It is to propose a kind of drive control circuit of IGBT pipe in electromagnetic heating cooking utensil with a novel purpose, can be realized
The working condition detection of IGBT pipe and soft unlatching, improve the reliability of IGBT pipe work.
Another purpose of the utility model is to propose a kind of electromagnetic heating cooking utensil.
To achieve the above object, on the one hand the utility model proposes the drive of IGBT pipe in a kind of electromagnetic heating cooking utensil
Dynamic control circuit, including control module, IGBT drive module and IGBT conducting voltage detection module, the control module include letter
Number output port and protection detection port, the IGBT drive module includes driving chip, wherein the signal output port connects
It is connected to the receiver port of the driving chip, protection detection port is connected to the failure feedback end of the driving chip
Mouthful, the control module exports IGBT by the signal output port and controls signal；The IGBT conducting voltage detection module
It is connected between the pole C of the IGBT and the voltage detecting port of the driving chip, the IGBT conducting voltage detection module
The driving chip is sent to detect the conducting voltage of the IGBT pipe, and by the conducting voltage；The driving chip
Drive output mouth be connected to the pole G of the IGBT, described in the driving chip is received by the receiver port
IGBT controls signal, and controls signal according to the IGBT and successively export amplification region driving voltage by the drive output mouth
It is managed with saturation region driving voltage to the IGBT, so that IGBT pipe carries out soft unlatching when opening every time, and according to described
Conducting voltage judges to feed back fault-signal when the IGBT pipe breaks down to the control module, so as to the control module root
Protection control is carried out to the IGBT pipe according to the fault-signal that protection detection port receives, wherein drive the amplification region
Dynamic voltage is less than the saturation region driving voltage.
According to the utility model proposes electromagnetic heating cooking utensil in IGBT pipe drive control circuit, control module is logical
Signal output port output IGBT control signal is crossed, the driving chip in IGBT drive module is received by receiver port
IGBT controls signal, and controls signal according to IGBT and successively export amplification region driving voltage and saturation region by drive output mouth
Driving voltage is to IGBT pipe, so that IGBT pipe carries out soft unlatching when opening every time.When IGBT pipe is opened every time, led by IGBT
The conducting voltage of logical voltage detection module detection IGBT pipe, and conducting voltage is sent to driving chip, and according to conducting voltage
Judge to feed back fault-signal when IGBT pipe breaks down to control module, so that control module is received according to protection detection port
Fault-signal protection control is carried out to IGBT pipe.Thereby, it is possible to realize the detection of the working condition of IGBT pipe and soft unlatching, improve
The reliability of IGBT pipe work.
In addition, also according to the drive control circuit of IGBT pipe in the utility model electromagnetic heating cooking utensil set forth above
It can have following additional technical characteristic:
Specifically, the IGBT conducting voltage detection module includes: first diode, the cathode of the first diode with
The C of the IGBT pipe is extremely connected；Second diode, the cathode and the anode phase of the first diode of second diode
Even；First resistor, one end of the first resistor are connected with the anode of second diode, the other end of the first resistor
It is connected with the voltage detecting port of the driving chip.
Further, the IGBT drive module further include: first capacitor, one end of the first capacitor respectively with it is described
The other end of first resistor is connected with the voltage detecting port of the driving chip, the other end ground connection of the first capacitor.
Specifically, the failure feedback port of the driving chip is connected to the protection by second resistance and detects port.
Further, the IGBT drive module further include: 3rd resistor, one end of the 3rd resistor and the IGBT
The G of pipe is extremely connected, the other end ground connection of the 3rd resistor；Voltage-stabiliser tube, the anode of the voltage-stabiliser tube and the 3rd resistor
The other end is grounded after being connected, the cathode of the voltage-stabiliser tube pole the G phase with one end of the 3rd resistor and the IGBT pipe respectively
Even；Third diode, the anode of the third diode pole the G phase with one end of the 3rd resistor and the IGBT pipe respectively
Even, the cathode of the third diode is connected with default power supply；4th diode, the anode of the 4th diode respectively with institute
The one end for stating 3rd resistor is extremely connected with the G of the IGBT pipe；4th resistance, one end and the described 4th 2 of the 4th resistance
The cathode of pole pipe is connected, and the other end of the 4th resistance is connected with the drive output mouth of the driving chip；5th resistance,
5th resistance is connected between the anode of the 4th diode and the other end of the 4th resistance.
Specifically, the power ground port of the driving chip is connected to ground, and the power port of the driving chip is connected to
Default power supply, and the power port of the driving chip also passes through the second capacity earth.
Specifically, the driving chip exports the time of the amplification region driving voltage in the soft unlatching IGBT pipe
For 0.3 microsecond to 6 microseconds, the time for exporting the saturation region driving voltage is 1 microsecond to 35 microseconds.
Specifically, it is carried out by controlling the IGBT pipe with controlling the resonance modules in the electromagnetic heating cooking utensil
Before resonant operational, the control module also detects port output reset signal to the driving chip by the protection, with
The driving chip is set to carry out driving work.
Wherein, the resonance modules include the resonant capacitance being connected in parallel and resonance coil panel.
To achieve the above object, on the other hand the utility model proposes a kind of electromagnetic heating cooking utensil comprising on
The drive control circuit of IGBT pipe in the electromagnetic heating cooking utensil stated.
The utility model proposes electromagnetic heating cooking utensil, pass through IGBT pipe in above-mentioned electromagnetic heating cooking utensil
Drive control circuit can be realized IGBT pipe work state-detection and soft unlatching, improve the reliability of IGBT pipe work.
Detailed description of the invention
Fig. 1 is the drive control circuit of IGBT pipe in the electromagnetic heating cooking utensil according to the utility model one embodiment
Block diagram；
Fig. 2 is the schematic diagram according to the driving voltage of the IGBT pipe of the utility model one embodiment；
Fig. 3 is the drive control electricity of IGBT pipe in the electromagnetic heating cooking utensil according to another embodiment of the utility model
The block diagram on road；And
Fig. 4 is the drive control circuit of IGBT pipe in the electromagnetic heating cooking utensil according to the utility model one embodiment
Circuit diagram.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
It is managed with reference to the accompanying drawings to describe IGBT in the electromagnetic heating cooking utensil proposed according to the utility model embodiment
Drive control circuit and electromagnetic heating cooking utensil.
Fig. 1 is the drive control circuit of IGBT pipe in the electromagnetic heating cooking utensil according to the utility model one embodiment
Block diagram.As shown in Figure 1, in the electromagnetic heating cooking utensil IGBT pipe drive control circuit can include: control mould
Block 10, IGBT drive module 20 and IGBT conducting voltage detection module 40.
Wherein, control module 10 may include signal output port 11 and protection detection port 13.IGBT drive module 20 can
Including driving chip 21.The signal output port 11 of control module 10 is connected to the receiver port 1 of driving chip 21, protection
Detection port 13 is connected to the failure feedback port 6 of driving chip 21, and control module 10 is exported by signal output port 11
IGBT controls signal.IGBT conducting voltage detection module 40 is connected to the pole C of IGBT and the voltage detecting port 5 of driving chip 21
Between, conducting voltage of the IGBT conducting voltage detection module 40 to detect IGBT pipe, and conducting voltage is sent to driving core
Piece 21.
Also, the drive output mouth 4 of driving chip 21 is connected to the pole G of IGBT, and driving chip 21 is received by signal
Port 1 receives IGBT and controls signal, and controls signal according to IGBT and pass through drive output mouth 4 successively output amplification region driving electricity
VC1 and saturation region driving voltage VC2 to IGBT pipe is pressed, so that IGBT pipe carries out soft unlatching when opening every time, and according to conducting
Voltage judges to feed back fault-signal when IGBT pipe breaks down to control module 10, so that control module 10 is according to protection test side
The fault-signals that mouth 13 receives carry out protection control to IGBT pipe, wherein amplification region driving voltage VC1 drives less than saturation region
Voltage VC2.
One embodiment according to the present utility model, driving chip 21 is in soft unlatching IGBT pipe, the driving of output amplification region
The time t1 of voltage is 0.3 microsecond to 6 microseconds, and the time t2 of output saturation region driving voltage is 1 microsecond to 35 microseconds.
Specifically, shown in as shown in Figure 1, Figure 3 and Figure 4, after electromagnetic heating cooking utensil works on power, power module 60 is exported
AC power source be filtered by the first filter module 70, then carried out by rectification module 80 (e.g., rectifier bridge) whole
Stream is further filtered by the second filter module 90 and smooth filter capacitor 100 with the direct current of output ripple, with
Stable DC is exported to resonance modules 50, wherein resonance modules 50 can be by resonant capacitance C3 and resonance coil panel in parallel
L2 composition, the second filter module 90 may include that the first inductance L1 and the 5th capacitor C5, smothing filtering capacitor 100 in parallel may include
4th capacitor C4.
During electromagnetic heating cooking utensil work, control module 10 exports IGBT control by signal output port 11
Signal processed is to IGBT drive module 20.IGBT drive module 20 receives IGBT control by the receiver port 1 of driving chip 21
Signal processed, and signal is controlled according to IGBT, amplification region driving voltage is successively exported by the drive output mouth 4 of driving chip 21
VC1 and saturation region driving voltage VC2, wherein since amplification region driving voltage VC1 is less than saturation region driving voltage VC2, so as to
Enough realize the soft start of IGBT pipe.For example, as shown in Fig. 2, driving chip 21 first exports t1 time (e.g., 0.3 microsecond≤t1≤6
Microsecond) amplification region driving voltage VC1 to IGBT pipe, then export the t2 time (e.g., the microsecond of 1 microsecond≤t2≤35) saturation region drive
Dynamic voltage VC2 to IGBT pipe, so as to carry out soft unlatching when IGBT pipe is opened；When not outputting drive voltage, IGBT pipe is in pass
Disconnected state.
In addition, when IGBT pipe is opened, the conducting voltage of the also real-time detection IGBT pipe of IGBT conducting voltage detection module 40,
And the conducting voltage is sent to driving chip 21 by the voltage detecting port 5 of driving chip 21, so as to driving chip 21
Judge whether IGBT pipe breaks down according to conducting voltage, for example, when conducting voltage (specifically can be according to IGBT pipe greater than certain value
Model determines) when, judge that IGBT pipe is normal；When conducting voltage is less than certain value, judge that IGBT pipe breaks down.Driving chip
21 generate fault-signal when judging that IGBT pipe breaks down, and feed back fault-signal to control by failure feedback port 6
Module 10.Control module 10 receives fault-signal by protection detection port 13, and according to the fault-signal received to IGBT
Pipe carries out protection control, for example, control module 10 exports low level signal to IGBT drive module 20, so that IGBT pipe turns off.
In the shutdown of IGBT pipe, IGBT conducting voltage detection module 40 stops carrying out fault detection.So as to realize the work of IGBT pipe
Make state-detection and soft unlatching, so that the work of IGBT pipe is relatively reliable.
Further, one embodiment according to the present utility model, as shown in Figure 3 and Figure 4, above-mentioned electromagnetic heating culinary art
The drive control circuit of IGBT pipe may also include that zero crossing detection module 30, zero crossing detection module 30 pass through detection input in utensil
The zero crossing of AC power source is to export zero cross signal.Control module 10 may also include zero cross signal detection port 12, zero cross signal
Detection port 12 is connected to zero crossing detection module 30, and control module 10 detects port 12 by zero cross signal and receives zero cross signal,
And IGBT is exported by signal output port 11 according to zero cross signal and controls signal.
Specifically, during electromagnetic heating cooking utensil works, zero passage of the zero crossing detection module 30 to AC power source
Point is detected, and zero cross signal is generated when detecting zero crossing, and be sent to control module 10.Control module 10 passes through zero passage
Signal detection port 12 receives zero cross signal, and exports IGBT control by signal output port 11 according to the zero cross signal received
Signal processed is to IGBT drive module 20, so that IGBT drive module 20 successively exports amplification according to the IGBT control signal received
Area driving voltage VC1 and saturation region driving voltage VC2 to IGBT pipe, so that IGBT pipe carries out soft unlatching when opening every time.
Still further, one embodiment according to the present utility model, by controlling IGBT pipe to control electromagnetic heating
Before resonance modules 50 in cooking apparatus carry out resonant operational, control module 10 is also resetted by the protection detection output of port 13
Signal is to driving chip 21, so that driving chip 21 carries out driving work.
That is, also needing to lead to before the resonance modules 50 in control electromagnetic heating cooking utensil carry out resonant operational
It crosses control module 10 and reset control is carried out to driving chip 21.Specifically, it is defeated to first pass through protection detection port 13 for control module 10
Reset signal to driving chip 21, driving chip 21 receives the reset signal by failure feedback port 6 out, and according to the reset
Signal is resetted, so that driving chip 21 can drive IGBT pipe to work.
To further illustrate the drive control circuit of the utility model below with reference to specific example.
One embodiment according to the present utility model, as shown in figure 4, IGBT conducting voltage detection module 40 can include: the
One diode D1, the second diode D2 and first resistor R1.Wherein, the cathode of first diode D1 is extremely connected with the C of IGBT pipe,
The cathode of second diode D2 is connected with the anode of first diode D1, the sun of one end of first resistor R1 and the second diode D2
Extremely it is connected, the other end of first resistor R1 is connected with the voltage detecting port 5 of driving chip 21.
One embodiment according to the present utility model, as shown in figure 4, the failure feedback port 6 of driving chip 21 passes through the
Two resistance R2 are connected to protection detection port 13, and the receiver port 1 of driving chip 21 is connected to letter by the 6th resistance R6
Number output port 11.The power ground port 2 of driving chip 21 is connected to ground GND, and the power port 3 of driving chip 21 is connected to pre-
If power supply VCC, and the power port 3 of driving chip 21 is also grounded GND by the second capacitor C2.
One embodiment according to the present utility model, as shown in figure 4, IGBT drive module 20 may also include that first capacitor
C1, one end of first capacitor C1 are connected with the voltage detecting port 5 of the other end of first resistor R1 and driving chip 21 respectively, the
The other end of one capacitor C1 is grounded GND.
Further, as shown in figure 4, IGBT drive module 20 may also include that 3rd resistor R3, voltage-stabiliser tube ZD, the three or two
Pole pipe D3, the 4th diode D4, the 4th resistance R4 and the 5th resistance R5.Wherein, the pole G of one end of 3rd resistor R3 and IGBT pipe
It is connected, the other end of 3rd resistor R3 is grounded GND.The anode of voltage-stabiliser tube ZD is grounded after being connected with the other end of 3rd resistor R3
GND, the cathode of voltage-stabiliser tube ZD are extremely connected with the G of one end of 3rd resistor R3 and IGBT pipe respectively.The anode of third diode D3
Extremely it is connected with the G of one end of 3rd resistor R3 and IGBT pipe respectively, the cathode of third diode D3 is connected with default power supply VCC.
The anode of 4th diode D4 is extremely connected with the G of one end of 3rd resistor R3 and IGBT pipe respectively.One end of 4th resistance R4 with
The cathode of 4th diode D4 is connected, and the other end of the 4th resistance R4 is connected with the drive output mouth 4 of driving chip 21.5th
Resistance R5 is connected between the anode of the 4th diode D4 and the other end of the 4th resistance R4.
Specifically, during electromagnetic heating cooking utensil works, zero passage of the zero crossing detection module 30 to AC power source
Point is detected, and zero cross signal is generated when detecting zero crossing, and be sent to control module 10.Control module 10 is receiving
IGBT is exported after to zero cross signal and controls signal to driving chip 21, and driving chip 21 is first according to the IGBT control signal received
Amplification region driving voltage VC1 to the IGBT pipe of t1 time (e.g., the microsecond of 0.3 microsecond≤t1≤6) is exported, then exports the t2 time (e.g.,
1 microsecond≤t2≤35 microseconds) saturation region driving voltage VC2 to IGBT pipe so that IGBT pipe carries out soft unlatching when opening every time.
When IGBT pipe is opened, the conducting voltage of the also real-time detection IGBT pipe of IGBT conducting voltage detection module 40, and will
The conducting voltage is sent to driving chip 21, so that driving chip 21 judges whether IGBT pipe breaks down according to conducting voltage.
Driving chip 21 generates fault-signal when judging that IGBT pipe breaks down, and is sent to control module 10, so that control mould
Block 10 carries out protection control to IGBT pipe according to the fault-signal received.In the shutdown of IGBT pipe, the detection of IGBT conducting voltage
Module 40 stops carrying out fault detection.So as to realize the working condition detection and soft unlatching of IGBT pipe, so that IGBT plumber
Make relatively reliable.
In conclusion according to the drive control electricity of IGBT pipe in the electromagnetic heating cooking utensil of the utility model embodiment
Road, control module export IGBT by signal output port and control signal, and the driving chip in IGBT drive module passes through signal
Receiving port receives IGBT and controls signal, and controls signal according to IGBT and successively export amplification region driving by drive output mouth
Voltage and saturation region driving voltage are to IGBT pipe, so that IGBT pipe carries out soft unlatching when opening every time.It is open-minded every time in IGBT pipe
When, the conducting voltage of IGBT pipe is detected by IGBT conducting voltage detection module, and conducting voltage is sent to driving chip, and
Fault-signal is fed back when judging that IGBT pipe breaks down according to conducting voltage to control module, so that control module is examined according to protection
It surveys the fault-signal that port receives and protection control is carried out to IGBT pipe.Thereby, it is possible to realize that the working condition of IGBT pipe detects
With soft unlatching, the reliability of IGBT pipe work is improved.
In addition, the embodiments of the present invention also proposed a kind of electromagnetic heating cooking utensil comprising above-mentioned electromagnetism
The drive control circuit of IGBT pipe in heating appliance for cooking.
The electromagnetic heating cooking utensil of the utility model embodiment is managed by IGBT in above-mentioned electromagnetic heating cooking utensil
Drive control circuit, can be realized IGBT pipe working condition detection and soft unlatching, improve IGBT pipe work reliability.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable
The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is orientation based on the figure
Or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limit to the utility model
System.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.The meaning of " plurality " is at least two, such as two in the description of the present invention,
It is a, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside element, unless otherwise restricted clearly.For the common skill of this field
For art personnel, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention unless specifically defined or limited otherwise, fisrt feature is in the second feature " on " or " down "
It can be that the first and second features directly contact or the first and second features are by intermediary mediate contact.Moreover, first is special
Sign can be fisrt feature above the second feature " above ", " above " and " above " and be directly above or diagonally above the second feature, or only
Indicate that first feature horizontal height is higher than second feature.Fisrt feature under the second feature " below ", " below " and " below " can be with
It is that fisrt feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height 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 spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with
It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this field
Technical staff can by the feature of different embodiments or examples described in this specification and different embodiments or examples into
Row combination and combination.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (10)
1. the drive control circuit of IGBT pipe in a kind of electromagnetic heating cooking utensil, which is characterized in that including control module, IGBT
Drive module and IGBT conducting voltage detection module, the control module include signal output port and protection detection port, institute
Stating IGBT drive module includes driving chip, wherein
The signal output port is connected to the receiver port of the driving chip, and protection detection port is connected to institute
The failure feedback port of driving chip is stated, the control module exports IGBT by the signal output port and controls signal；
The IGBT conducting voltage detection module be connected to the IGBT the pole C and the driving chip voltage detecting port it
Between, conducting voltage of the IGBT conducting voltage detection module to detect the IGBT pipe, and the conducting voltage is sent
To the driving chip；
The drive output mouth of the driving chip is connected to the pole G of the IGBT, and the driving chip is connect by the signal
Receiving end mouth receives the IGBT and controls signal, and controls signal according to the IGBT and successively exported by the drive output mouth
Amplification region driving voltage and saturation region driving voltage are managed to the IGBT, so that IGBT pipe carries out soft open when opening every time
Fault-signal is fed back when opening, and judging that the IGBT pipe breaks down according to the conducting voltage to the control module, with
Toilet states control module and carries out protection control to the IGBT pipe according to the fault-signal that protection detection port receives,
In, the amplification region driving voltage is less than the saturation region driving voltage.
2. the drive control circuit of IGBT pipe in electromagnetic heating cooking utensil as described in claim 1, which is characterized in that described
IGBT conducting voltage detection module includes:
First diode, the cathode of the first diode are extremely connected with the C of the IGBT pipe；
The cathode of second diode, second diode is connected with the anode of the first diode；
First resistor, one end of the first resistor are connected with the anode of second diode, the first resistor it is another
End is connected with the voltage detecting port of the driving chip.
3. the drive control circuit of IGBT pipe in electromagnetic heating cooking utensil as claimed in claim 2, which is characterized in that described
IGBT drive module further include:
First capacitor, one end of first capacitor voltage with the other end of the first resistor and the driving chip respectively
It detects port to be connected, the other end ground connection of the first capacitor.
4. the drive control circuit of IGBT pipe in electromagnetic heating cooking utensil as claimed in any one of claims 1-3, special
Sign is that the failure feedback port of the driving chip is connected to the protection by second resistance and detects port.
5. the drive control circuit of IGBT pipe in electromagnetic heating cooking utensil as claimed in claim 4, which is characterized in that described
IGBT drive module further include:
3rd resistor, one end of the 3rd resistor are extremely connected with the G of the IGBT pipe, another termination of the 3rd resistor
Ground；
Voltage-stabiliser tube, the anode of the voltage-stabiliser tube are grounded after being connected with the other end of the 3rd resistor, the cathode of the voltage-stabiliser tube
Extremely it is connected with the G of one end of the 3rd resistor and the IGBT pipe respectively；
Third diode, the anode of the third diode pole G with one end of the 3rd resistor and the IGBT pipe respectively
It is connected, the cathode of the third diode is connected with default power supply；
4th diode, the anode of the 4th diode pole G with one end of the 3rd resistor and the IGBT pipe respectively
It is connected；
One end of 4th resistance, the 4th resistance is connected with the cathode of the 4th diode, the 4th resistance it is another
End is connected with the drive output mouth of the driving chip；
5th resistance, the 5th resistance be connected to the 4th diode anode and the 4th resistance the other end it
Between.
6. the drive control circuit of IGBT pipe in electromagnetic heating cooking utensil as claimed in claim 4, which is characterized in that described
The power ground port of driving chip is connected to ground, and the power port of the driving chip is connected to default power supply, and the driving
The power port of chip also passes through the second capacity earth.
7. the drive control circuit of IGBT pipe in electromagnetic heating cooking utensil as described in claim 1, which is characterized in that described
For driving chip in the soft unlatching IGBT pipe, the time for exporting the amplification region driving voltage is 0.3 microsecond to 6 microseconds, defeated
The time of the saturation region driving voltage is 1 microsecond to 35 microseconds out.
8. the drive control circuit of IGBT pipe in electromagnetic heating cooking utensil as described in claim 1, which is characterized in that logical
It crosses before controlling the IGBT pipe to control the progress resonant operational of the resonance modules in the electromagnetic heating cooking utensil, the control
Molding block also detects port output reset signal to the driving chip, so that the driving chip is driven by the protection
It starts building to make.
9. the drive control circuit of IGBT pipe in electromagnetic heating cooking utensil as claimed in claim 8, which is characterized in that described
Resonance modules include the resonant capacitance being connected in parallel and resonance coil panel.
10. a kind of electromagnetic heating cooking utensil, which is characterized in that add including electromagnetism as claimed in any one of claims 1-9 wherein
The drive control circuit of IGBT pipe in heat cooking utensil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820607134.3U CN208658971U (en) | 2018-04-25 | 2018-04-25 | The drive control circuit of electromagnetic heating cooking utensil and its IGBT pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820607134.3U CN208658971U (en) | 2018-04-25 | 2018-04-25 | The drive control circuit of electromagnetic heating cooking utensil and its IGBT pipe |
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| CN208658971U true CN208658971U (en) | 2019-03-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112493862A (en) * | 2019-08-26 | 2021-03-16 | 浙江苏泊尔家电制造有限公司 | Detection circuit of cooking appliance, cooking appliance and control method of cooking appliance |
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2018
- 2018-04-25 CN CN201820607134.3U patent/CN208658971U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112493862A (en) * | 2019-08-26 | 2021-03-16 | 浙江苏泊尔家电制造有限公司 | Detection circuit of cooking appliance, cooking appliance and control method of cooking appliance |
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