Voltage detection circuit and method and electric equipment

The invention discloses a voltage detection circuit, method and electric equipment. The circuit comprises a first detection unit, a second detection unit, a logical operation unit, and awaveform detection unit, wherein the input end of thefirst detection unit is connected with the output end of an A...

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Bibliographic Details
Main Authors CHEN WANXING, SHEN LIFENG, ZHOU BAOLIN, HU JIANG, HAN XIAOJIAN
Format Patent
LanguageChinese
English
Published 11.12.2020
Subjects
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:The invention discloses a voltage detection circuit, method and electric equipment. The circuit comprises a first detection unit, a second detection unit, a logical operation unit, and awaveform detection unit, wherein the input end of thefirst detection unit is connected with the output end of an AC power supply, and the output end is connected with the logic operation unit for outputting a signal according to the output voltage of the AC power supply; the input end of the second detection unit is connected with the output end of the AC power supply, and the output end is connected with the logical operation unit for outputting signals according to the output voltage of the AC power supply; the logical operation unit is used for generating PWM signals according to the signals output by the first detection unit and the second detection unit; the input end of the waveform detection unit is connected with the logic operation unit, and the waveform detection unit is used for determining apreset time period accor
Bibliography:Application Number: CN202010962400