Electromagnetic cooking equipment, electromagnetic heating system and heating control method for electromagnetic heating system

Abstract

The invention discloses electromagnetic cooking equipment, an electromagnetic heating system and a heating control method for the electromagnetic heating system. The system comprises a rectifier module, a plurality of independent resonant heating modules, a zero-crossing detection module and a control module, wherein an input end of the rectifier module is connected with an AC power supply; the plurality of resonant heating modules all are connected with an output end of the rectifier module; the zero-crossing detection module is connected with the AC power supply and is used for detecting a zero-crossing interval of the AC power supply to generate a zero-crossing detection signal; the control module is connected with the zero-crossing detection module and the plurality of resonant heatingmodules separately; and the control module is used for carrying out heating switching control on the plurality of resonant heating modules according to the zero-crossing detection signal to constructa simultaneous heating interval for simultaneous heating of at least two resonant heating modules in the zero-crossing interval. Therefore, the system is capable of controlling the plurality of resonant heating modules to quickly carry out alternate heating, and the simultaneous heating interval is constructed during switching, so that the power during switching is continuous, and the switching losses of IGBTs in the resonant heating modules are reduced.

Description

technical field [0001] The invention relates to the field of communication technology, and in particular to an electromagnetic heating system, a heating control method of the electromagnetic heating system and an electromagnetic cooking device. Background technique [0002] The relevant part of the electromagnetic heating system has a multi-coil disk, which can control a heating body in an alternate heating manner. However, the problem in the related technology is that when the coil disks are alternately heated, the power switching is discontinuous, and the switching loss of the IGBT tube is high. [0003] Therefore, there is a need for improvement in the related art. Contents of the invention [0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. Therefore, an object of the present invention is to provide an electromagnetic heating system capable of controlling multiple resonant heating modules to heat...

AI Technical Summary

Problems solved by technology

However, the problems in the related technology are that when the coil disks are alternately heated, the power switching is discontinuous, and the switching loss of the IGBT tube is high.

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