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:
Sep. 18, 2007
Filed:
Nov. 22, 2006
Ying-chang Cheng, Taipei Hsien, TW;
Ying-Chang Cheng, Taipei Hsien, TW;
Zippy Technology Corp., Taipei Hsien, TW;
Abstract
A driver protection circuit for a push-pull type discharge lamp comprises a discharge lamp with two input electrodes, a driver circuit having two transformer units and two driver units, and a protection mechanism. Two transformer units are respectively connected to the two input electrodes and provide an opposite-phase push-pull type driving power. The front ends of the transformer units are respectively connected to the driver units which are parallel connected to a power source. The combination of the driver unit, the transformer unit, and the input electrode is defined to be a high voltage output section. The protection mechanism has two protection units respectively assigned to the high voltage output sections and can receive an abnormal signal of the corresponding high voltage output section and synchronically transmits the abnormal signal to two driver units and makes the driver circuit simultaneously stop or pause outputting power to the two input electrodes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile