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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 12253688 B1

PDFFull Text
Date of Patent:
Mar. 18, 2025

Filed:

Nov. 01, 2021

System for driving actuator

Applicant:

Lx Semicon Co., Ltd., Daejeon, KR;

Inventors:

Dong Gil Jeong, Daejeon, KR;

Kyu Ho Kim, Daejeon, KR;

Ho Yul Choi, Daejeon, KR;

Chang In Park, Daejeon, KR;

Assignee:

LX Semicon Co., LTD, Daejeon, KR;

Attorneys:

Greenberg Traurig, LLP

Allen Kim

Primary Examiner:

Kawing Chan

Assistant Examiner:

Charles S Laughlin

Int. Cl.
CPC ...
H02M 1/44 (2007.01); G01R 7/00 (2006.01); G01R 19/00 (2006.01); G02B 27/64 (2006.01); G03B 5/00 (2021.01); G05F 1/00 (2006.01); H02P 6/14 (2016.01); H02P 25/034 (2016.01); H02P 27/14 (2006.01); H04N 23/68 (2023.01);
U.S. Cl.
CPC ...
G02B 27/646 (2013.01); G01R 7/00 (2013.01); G01R 19/0038 (2013.01); G03B 5/00 (2013.01); G05F 1/00 (2013.01); H02P 25/034 (2016.02); H04N 23/6812 (2023.01); G03B 2205/0007 (2013.01); G03B 2205/0015 (2013.01); G03B 2205/0053 (2013.01); G03B 2205/0069 (2013.01); H04N 23/685 (2023.01);
Abstract

A system for driving an actuator which is capable of providing constant resolution regardless of a type of an actuator according to an aspect of the present invention includes an actuator driving circuit configured to generate a driving current for an operating actuator and output the generated driving current to the operating actuator, a current sensing unit configured to sense a current of the operating actuator and generate a sensing signal, and a gain adjustment unit configured to calculate a gain on the basis of a first maximum driving current range of the operating actuator and a second maximum driving current range of a reference actuator and change the sensing signal on the basis of the gain. A signal generated based on the second sensing signal is input to the actuator driving circuit.

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