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:
Oct. 28, 2025
Filed:
Jul. 25, 2023
Hyundai Mobis Co., Ltd., Seoul, KR;
Sang Min Kim, Yongin-si, KR;
Jin Qyu Seo, Yongin-si, KR;
HYUNDAI MOBIS CO., LTD., Seoul, KR;
Abstract
The present invention relates to a current measurement apparatus using a Rogowski coil and an operational (OP) amplifier, the current measurement apparatus being capable of accurately measuring a current by compensating for an offset of the OP amplifier according to a temperature change. The current measurement apparatus that measures a measurement target current having a predetermined switching frequency and an on-duty includes a current sensor measuring a rate of change of the measurement target current, an integrator integrating the rate of change and outputting an estimated current amount, and a corrector including a first correction unit that corrects and outputs a direct current (DC) offset of the estimated current amount based on at least one of the switching frequency or the on-duty.