Circuit structure for improving interference resistance of input port

The invention discloses a circuit structure for improving interference resistance of an input port. The circuit structure comprises a power supply, a signal input end, a Schmidt circuit and an RC filter structure, the signal input end is connected to the Schmidt circuit, the power supply is connecte...

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Bibliographic Details
Main Authors LI FUHUA, GUO ANQIANG, ZHAO HEMING, LIU QIANQIAN
Format Patent
LanguageEnglish
Published 25.02.2015
Subjects
CONTROLLING
PHYSICS
REGULATING
SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
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Summary:The invention discloses a circuit structure for improving interference resistance of an input port. The circuit structure comprises a power supply, a signal input end, a Schmidt circuit and an RC filter structure, the signal input end is connected to the Schmidt circuit, the power supply is connected to the power input end of the Schmidt circuit through the RC filter structure, the RC filter structure comprises a resistor and a capacitor, one end of the resistor is connected to the power supply, the other end of the resistor is connected to the power input end of the Schmidt circuit and one end of the capacitor, and the other end of the capacitor is grounded. The circuit structure can effectively eliminate interference of the input port and the power supply, and is simple in structure and low in manufacturing cost.
Bibliography:Application Number: CN20141634355