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. 05, 2024
Filed:
Dec. 02, 2019
Applicant:
Rohm Co., Ltd., Kyoto, JP;
Inventor:
Masaaki Nakayama, Kyoto, JP;
Assignee:
Rohm Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60Q 11/00 (2006.01); B60Q 1/00 (2006.01); B60Q 1/38 (2006.01); B62J 6/056 (2020.01); H05B 45/58 (2020.01);
U.S. Cl.
CPC ...
B60Q 11/005 (2013.01); B60Q 1/0094 (2013.01); B60Q 1/382 (2013.01); B62J 6/056 (2020.02); H05B 45/58 (2020.01);
Abstract
A lamp control device comprises a first input terminal, a second input terminal, an output terminal that is configured to be connectable to a lamp via an external switch and outputs a drive current for the lamp, an internal switch provided on a first path connecting the first input terminal and the output terminal, a constant current section provided on a second path connecting the second input terminal and the output terminal, a voltage monitoring section that monitors a voltage applied to the output terminal, and a control section that controls the internal switch on the basis of a monitoring result from the voltage monitoring section.