Digital voltmeter

The utility model discloses a digital voltmeter, including a singlechip circuit and a display module, wherein an output end of the singlechip circuit is electrically connected with an input end of the display module; also including a digital potentiometer and a voltage comparator, wherein an output...

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Bibliographic Details
Main Authors DENG ZHIXIANG, MIAO HONGXIA, QI BENSHENG
Format Patent
LanguageChinese
English
Published 08.06.2011
Subjects
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:The utility model discloses a digital voltmeter, including a singlechip circuit and a display module, wherein an output end of the singlechip circuit is electrically connected with an input end of the display module; also including a digital potentiometer and a voltage comparator, wherein an output end of the voltage comparator is electrically connected with an input end of the singlechip circuit, the output end of the singlechip circuit is electrically connected with an input end of the digital potentiometer, an output end of the digital potentiometer is electrically connected with an input end of the voltage comparator; the display module is a liquid crystal display integrated module. The digital voltmeter has advantages of simple circuit structure, high measurement precision, small volume, easy carry, and beautiful appearance.
Bibliography:Application Number: CN20102584846U