Electromagnetic heating cooking appliance and its igbt tube drive control circuit and method
A technology for driving control circuits and cooking utensils, which is applied in induction heating control, induction heating, cooking utensils, etc., and can solve problems such as unreliable operation of IGBT tubes
Active Publication Date: 2021-12-21
FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
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Problems solved by technology
[0002] At present, the driving circuit of the IGBT tube used in the electromagnetic heating cooking appliance is generally a push-pull circuit composed of separate element triodes, which is used to control the opening or closing of the IGBT tube, but in the process of controlling the IGBT tube, the IGBT tube There will be problems with unreliable work
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[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0030] The driving control circuit of the IGBT tube in the electromagnetic heating cooking appliance, the electromagnetic heating cooking appliance and the driving control method of the IGBT tube in the electromagnetic heating cooking appliance according to the embodiments of the present invention will be described below with reference to the accompanying drawings.
[0031] figure 1 It is a schematic block diagram of a drive control circuit for an IGBT tube in an electromagnetic heating cooking appliance according to an embodimen...
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The invention discloses an electromagnetic heating cooking appliance and its IGBT tube driving control circuit. The control circuit includes: a zero-crossing detection module, which is used to detect the zero-crossing point of an input AC power supply to output a zero-crossing signal; To output the IGBT control signal according to the received zero-crossing signal; the IGBT conduction voltage detection module is used to send the detected conduction voltage of the IGBT tube to the drive chip in the IGBT drive module; the IGBT drive module, in the IGBT drive module According to the received IGBT control signal, the drive chip outputs the driving voltage in the amplification area and the driving voltage in the saturation area to the IGBT tube successively through the drive output port, so that the IGBT tube can be softly turned on every time it is turned on, and the IGBT tube can be judged according to the conduction voltage. Feedback the fault signal to the control module in case of fault, so that the control module can protect and control the IGBT tube according to the fault signal received by the protection detection port, thereby realizing the detection of the working state of the IGBT tube and soft opening, and improving the reliability of the IGBT tube.
Description
technical field [0001] The invention relates to the technical field of household appliances, in particular to a drive control circuit for an IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor) tube in an electromagnetic heating cooking appliance, an electromagnetic heating cooking appliance, and an electromagnetic heating cooking appliance The drive control method of medium IGBT tube. Background technique [0002] At present, the driving circuit of the IGBT tube used in the electromagnetic heating cooking appliance is generally a push-pull circuit composed of separate element triodes, which is used to control the opening or closing of the IGBT tube, but in the process of controlling the IGBT tube, the IGBT tube There will be problems with unreliable work. Contents of the invention [0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. Therefore, the first object of the present in...
Claims
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IPC IPC(8): H02M1/08H05B6/06A47J27/00A47J36/24
CPCH05B6/06A47J27/00A47J36/2483
Inventor 雷俊卞在银王云峰张帆江德勇黄庶锋刘文华曾露添任祥喜邓家华瞿月红
Owner FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD