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:
Jan. 06, 2026
Filed:
Mar. 11, 2024
Denso Corporation, Kariya, JP;
Yuki Inden, Kariya, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
An electronic control unit includes a booster circuit, a high-side switch, multiple low-side switches, a controller, a diode and a Zener diode. The booster circuit charges a booster capacitor to boost a power supply voltage supplied from a battery. The high-side switch drives an inductive load with a current through an output voltage of the booster circuit and the power supply voltage. The low-side switches are selectively turned on or off to control individual cylinders in an internal combustion engine. The controller controls the booster circuit, the high-side switch, and the low-side switches. The diode allows a current to flow back to the booster capacitor from a connection node between the inductive load and the low-side switches. The Zener diode is connected between the diode and the battery. The Zener diode clamps a voltage applied to the booster capacitor.