Device and method for regulating the electromagnetic compatibility of a microwave device and microwave device

Abstract

The embodiment of the invention provides a device and a method for adjusting the electromagnetic compatibility of microwave equipment and microwave equipment and belongs to the technical field of electronics. The device comprises a sampling module and a control module. The sampling module is used for continuously sampling the current of a microwave load when the microwave load is turned on. The control module is used for determining the actual working waveform section of the current of the microwave load based on a sampling value obtained during the sampling process of the sampling module, determining an area difference between a first effective area corresponding to the actual working waveform section and a second effective area corresponding to a pre-stored theoretical optimal working waveform section, determining the compensation time according to the area difference, controlling the next turning-on time of the microwave load according to the compensation time, and enabling the actual working waveform section of the current of the microwave load to be consistent with the theoretical optimal working waveform section when the microwave load is turned on next time. According to thetechnical scheme, the EMC problem caused by the long-term use of the microwave equipment is solved.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a device and method for adjusting electromagnetic compatibility of microwave equipment and microwave equipment. Background technique [0002] With the advancement of science and technology, various microwave equipment such as microwave therapy machines, microwave sterilizers, microwave ovens, etc. are more and more widely used. Microwave ovens have gradually become one of the must-have white goods in daily life. With the user's demand for high power and fast microwave equipment and the further improvement of technical standards in various countries, the electromagnetic compatibility (EMC, Electro Magnetic Compatibility) of microwave equipment has gradually become one of the pain points that need to be solved urgently. [0003] figure 1 It is a structural block diagram of a microwave device in the prior art. like figure 1 As shown, in the prior art, the circuit of microwav...

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Problems solved by technology

In addition, if image 3 As shown, even after debugging, the microwave load can initially work in the actual optimal working waveform segment, but due to mechanical stress fatigue of the relay, etc., after a period of use (for example, working for several months), the actual working of the microwave load There will be a significant shift between the time period and the initial working time period, so that the actual current waveform section of the microwave load will be significantly offset from the theoretical optimal working waveform section, and obvious EMC interference will be generated at this time

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