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:
May. 21, 2019
Filed:
Mar. 22, 2018
Sanken Electric Co., Ltd., Saitama, JP;
Sanken Electric Korea Co., Ltd., Seoul, KR;
Mi Yong Kim, Seoul, KR;
Masaaki Shimada, Seoul, KR;
Eun Suk Lee, Seoul, KR;
Tetsuya Tabata, Saitama, JP;
Hiroaki Nakamura, Saitama, JP;
Sanken Electric Co., Ltd., Saitama, JP;
Sanken Electric Korea Co., Ltd., Seoul, KR;
Abstract
A device and method for controlling a power supply. The method includes: monitoring a feedback signal of a feedback terminal; determining whether the feedback signal of the feedback terminal is not a pulse signal; and terminating an on/off operation of a switching element when the feedback signal of the feedback terminal is not a pulse signal. Therefore, an abnormal status of the device can be correctly detected with a simple structure when the feedback terminal is open or is shorted with other terminals, while an error operation and a damage of the device can be avoided.