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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.:

US 12693162 B1

PDFFull Text
Date of Patent:
Jul. 28, 2026

Filed:

Dec. 03, 2023

Offset voltage compensation circuit and isolation amplifier device including the same

Applicant:

Lite-on Singapore Pte. Ltd., Singapore, SG;

Inventors:

Wei Shi, Singapore, SG;

Darmayuda Imade, Singapore, SG;

Assignee:

LITE-ON SINGAPORE PTE. LTD., Singapore, SG;

Attorney:

Li & Cai Intellectual Property Office

Primary Examiner:

Hafizur Rahman

Int. Cl.
CPC ...
H03F 1/02 (2006.01); G01J 3/36 (2006.01); G01N 33/483 (2006.01); G01S 17/04 (2020.01); G02B 1/00 (2006.01); G02B 5/20 (2006.01); G02B 5/28 (2006.01); G02B 26/00 (2006.01); H03F 1/22 (2006.01); H03F 3/45 (2006.01); H03F 3/68 (2006.01); G01J 3/28 (2006.01); G01N 21/3563 (2014.01);
U.S. Cl.
CPC ...
G01J 3/36 (2013.01); G01N 33/4833 (2013.01); G01S 17/04 (2020.01); G02B 1/002 (2013.01); G02B 5/201 (2013.01); G02B 5/286 (2013.01); G02B 26/001 (2013.01); H03F 1/223 (2013.01); H03F 3/45237 (2013.01); H03F 3/45475 (2013.01); H03F 3/45748 (2013.01); H03F 3/68 (2013.01); G01J 2003/2806 (2013.01); G01N 2021/3568 (2013.01); G01N 2201/125 (2013.01); G02B 2207/101 (2013.01); H03F 2200/165 (2013.01); H03F 2200/375 (2013.01); H03F 2203/45151 (2013.01); H03F 2203/45212 (2013.01);
Abstract

An offset voltage compensation circuit and an isolation amplifier device including the same are provided. The offset voltage compensation circuit includes a first amplifier, a second amplifier, a first current source, a second current source, a first resistor and a second resistor. The first amplifier has a first input connected to a first differential input node and a first output connected to a first differential output node. The second amplifier has a first input connected to a second differential input node and a second output connected to a second differential output node. The first current source is connected to the first amplifier for providing a first current. The second current source is connected to the second amplifier for providing a second current. The first current source is controlled according to the second current and a difference between a first initial output voltage and a second initial output voltage.

Find Patent Forward Citations

Shi, Wei. (2026). Offset voltage compensation circuit and isolation amplifier device including the same (U.S. Patent No. 12693162). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12693162

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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