NOISE DETECTING CIRCUIT AND ASSOCIATED SYSTEM AND METHOD

A noise detecting circuit including an amplifier circuit amplifying an input signal indicating a noise level of a circuit to be detected and output an amplified signal; a filtering circuit receiving and filtering the amplified signal and output a filtered signal; and a comparing circuit receiving an...

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Bibliographic Details
Main Authors HORNG, JAW-JUINN, LIEN, BEI-SHING
Format Patent
LanguageEnglish
Published 16.11.2023
Subjects
AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
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Summary:A noise detecting circuit including an amplifier circuit amplifying an input signal indicating a noise level of a circuit to be detected and output an amplified signal; a filtering circuit receiving and filtering the amplified signal and output a filtered signal; and a comparing circuit receiving and compare the filtered signal to a reference voltage and output an output signal; wherein the filtering circuit includes: an output terminal; and a first filter selectively coupled to the output terminal, including: a sub-output terminal; a switch selectively coupling the sub-output terminal to the output terminal; a resistor, wherein a terminal of the resistor is coupled to the amplifier circuit and another terminal of the resistor is coupled to the sub-output terminal; and a capacitor, wherein a terminal of the capacitor is coupled to the sub-output terminal and another terminal of the capacitor is coupled to a reference voltage source.
Bibliography:Application Number: US202318357989