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:
Dec. 30, 2025
Filed:
Dec. 21, 2023
Rohm Co., Ltd., Kyoto, JP;
Tetsuo Yamato, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
The present disclosure provides a load driving device. The load driving device includes a load, a resistor configured to be connected in parallel to the load, and a switch device. The switch device includes an output terminal, a ground terminal, a first switch element and an abnormality detection circuit. The output terminal is configured to connect the load and the resistor. The ground terminal is configured to connect to a ground potential. The first switch element is configured to be connected between the output terminal and the ground terminal. The abnormality detection circuit is configured to distinguish between a load open at the output terminal and a ground fault at the output terminal based on a magnitude relationship between an output current flowing through the first switch element, a first threshold value and a second threshold value greater than the first threshold value.