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:
Apr. 08, 2014
Filed:
May. 29, 2012
Applicants:
Lung-fai Tuen, New Taipei, TW;
Shan-hung Wang, New Taipei, TW;
Chiu-hsien Chang, New Taipei, TW;
Inventors:
Assignee:
Wistron Corp., New Taipei, TW;
Primary Examiner:
Int. Cl.
CPC ...
H02H 3/22 (2006.01); H02H 9/00 (2006.01); H02H 9/04 (2006.01);
U.S. Cl.
CPC ...
H02H 9/00 (2013.01); H02H 9/04 (2013.01); H02H 9/046 (2013.01);
Abstract
A Power over Ethernet (PoE) Power Device (PD) circuit and a protection circuit of electrostatic discharge (ESD) thereof are provided. The protection circuit of ESD includes a transient voltage suppressor (TVS) and a high-voltage capacitor, wherein the TVS and the high-voltage capacitor are coupled in series between a negative power terminal and a grounding terminal to reduce system malfunctions or damages when ESD or transient voltage surge occurs.