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. 25, 2025
Filed:
Jan. 30, 2024
Rohm Co., Ltd., Kyoto, JP;
Masaaki Nakayama, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
A lamp control device includes: an output; a comparator; and a first setter configured to set the voltage fed to a first input terminal of the comparator to a second voltage that depends on a first voltage or to a third voltage that depends on a first current, in which the output terminal is connected to a second input terminal of the comparator, the output terminal is configured to be connectable to the lamp via a switch, the output terminal is configured to be connectable to a second setter including the switch, when the first setter sets the voltage fed to the first input terminal of the comparator to the second voltage, and the second setter is configured to set the voltage fed to the output terminal to a fourth voltage that depends on the first voltage and the resistance value of the switch.