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:
Oct. 18, 2005
Filed:
Dec. 06, 2002
Chia-chang Hsu, Hsinchu, TW;
Yen-john Chen, Changhua, TW;
Chia-Chang Hsu, Hsinchu, TW;
Yen-John Chen, Changhua, TW;
Prolific Technology Inc., Taipei, TW;
Abstract
A power protection device includes a power source switching unit for shutting off the power supply from an AC power source according to an open control signal, a surge voltage protecting unit for outputting the open control signal when a surge voltage occurs, a leakage current protecting unit for outputting the open control signal when a leakage current occurs, and an over-current protecting unit for outputting an open control signal according to a current value when an over-current occurs. The power protection device provides the surge voltage protection, the leakage current protection and the over current protection at the same time.