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:
Mar. 31, 2026
Filed:
May. 06, 2024
Nuvoton Technology Corporation Japan, Kyoto, JP;
Daisuke Fukuda, Kyoto, JP;
Takuya Ishii, Osaka, JP;
Toru Kawanishi, Nara, JP;
Masahiro Takahashi, Kyoto, JP;
NUVOTON TECHNOLOGY CORPORATION JAPAN, Kyoto, JP;
Abstract
A motor driving device includes: a series circuit of a Zener diode and a detection resistor, connected between a gate terminal and a ground of a first high-side transistor; a comparator that compares a voltage of the detection resistor with a reference voltage; a first driving transistor that short-circuits between the gate and source terminals of the first high-side transistor, using a detection signal output by the comparator; a control circuit; and an OR circuit that puts the first driving transistor into an open state regardless of a drive signal from the control circuit. The motor driving device puts the first high-side transistor into a conducting state when a power supply voltage increases and the gate terminal of the first high-side transistor reaches or exceeds a predetermined voltage, to inhibit an increase in the power supply voltage.