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:
Jun. 16, 2026
Filed:
Jul. 17, 2023
Shanghai SG Micro Co., Ltd., Shanghai, CN;
SHANGHAI SG MICRO CO., LTD., Shanghai, CN;
Abstract
A leakage compensation circuit, a chip, and an electronic device are provided. The leakage compensation circuit includes an output stage circuit, a first sampling circuit, an operational amplifier circuit, and a second sampling circuit. The operational amplifier circuit includes an operational amplifier output stage circuit and an operational amplifier first stage circuit. The first sampling circuit samples a leakage current of the output stage circuit to obtain a first sampling current, and provides it to the operational amplifier output stage circuit via a first node. The second sampling circuit samples a current of the operational amplifier output stage circuit to obtain a second sampling current, and provides it to the output stage circuit via a second node, to compensate for the leakage current of the output stage circuit. The operational amplifier first stage circuit clamps voltages at the first node and the second node.