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. 15, 2022
Filed:
Dec. 10, 2021
Hergy International Corp., Taipei, TW;
HERGY INTERNATIONAL CORP., Taipei, TW;
Abstract
A circuit protection apparatus () is used to protect an LED drive circuit (), and the circuit protection apparatus () includes a first switch unit () and a snubber circuit (). The first switch unit () provides an electrical connection between an input terminal (A) and the LED drive circuit () according to the normality of an input current (Iin) flowing through the input terminal (A). The snubber circuit () provides a first delay time period (Td) according to an input power (Vin). The snubber circuit () provides a start signal (Ss) to the LED drive circuit () according to the end of the first delay time period (Td), and controls a first ground point (G) of the snubber circuit () to be coupled to a second ground point (G) of the LED drive circuit ().