Detection circuit and method

The embodiment of the invention provides a detection circuit and method. The detection circuit comprises a first MOS transistor, a voltage division unit and a pull-up resistor, the first end of the voltage dividing unit is connected with the positive electrode of the 2PIN battery, the second end of...

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Bibliographic Details
Main Author TANG ZIQIN
Format Patent
LanguageChinese
English
Published 11.10.2022
Subjects
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:The embodiment of the invention provides a detection circuit and method. The detection circuit comprises a first MOS transistor, a voltage division unit and a pull-up resistor, the first end of the voltage dividing unit is connected with the positive electrode of the 2PIN battery, the second end of the voltage dividing unit is connected with the grid electrode of the first MOS transistor, the third end of the voltage dividing unit is connected with the source electrode of the first MOS transistor, and the third end of the voltage dividing unit is grounded; the drain electrode of the first MOS transistor is connected with a power supply through a pull-up resistor; the first MOS transistor is used for outputting an indication signal; wherein the indication signal is a signal used for indicating whether the 2PIN battery is connected to target equipment or not; and the 2PIN battery is used for supplying power to the target equipment when the 2PIN battery is connected to the target equipment. The detection circuit
Bibliography:Application Number: CN202210814701