The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 16, 2023
Filed:
Jan. 20, 2021
Zhejiang University, Zhejiang, CN;
Jiangcheng Luo, Hangzhou, CN;
Yan Han, Hangzhou, CN;
Zhejiang University, Hangzhou, CN;
Abstract
Disclosed is a chip for detection of basic electric leakage on a residual current protector. Basic electric leakage can be understood as an electric leakage signal which is generated during normal operation of an electrical appliance and cannot cause a residual current protector to trip out. The chip for detection of basic electric leakage includes a peak detection circuit, a 20 ms clock generator, a 60 ms delay circuit, a 2.5 V reference voltage module, a register module, a comparator module, a counter, a digital subtractor, an analog-to-digital converter (ADC) module, a digital-to-analog converter (DAC) module, an analog adder/analog subtractor, a selection circuit, and a circuit for delayed resetting. The present disclosure can identify and eliminate a basic electric leakage signal from an input electric leakage signal, and will not affect normal operation of a load during detection, determination, storage, and output of the electric leakage signal.