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:
Nov. 22, 2016
Filed:
Mar. 09, 2016
Self Electronics Co., Ltd., Ningbo, Zhejiang, CN;
Ruomeng Zhang, Zhejiang, CN;
Huangfeng Pan, Zhejiang, CN;
Xuhong Ma, Zhejiang, CN;
Junjun Ying, Zhejiang, CN;
Self Electronics Co., Ltd., Ningbo, CN;
Abstract
An LED driver having short circuit protection includes a power, a controlling module coupled to the power and be configured to control output thereof, a sampling module electrically connected to the controlling module, a switch controlling module coupled to the sampling module, and a second switch coupled to the switch controlling moduleand the output end of the power. The controlling module includes a first switch. The sampling module gets a low level signal during that short circuit is occurred in the first switch. When the switch controlling module receives the low level signal, it turns off the second switch so as to reduce the input voltage of the controlling module. The LED driver having short circuit protection can protect the first switch and load during that short circuit is occurred in the first switch.