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. 02, 2010
Filed:
Oct. 17, 2006
Junming Zhang, Hanzhou, CN;
Xiaopeng Dong, Shenzhen, CN;
Yuancheng Ren, Hangzhou, CN;
Wei Chen, Campbell, CA (US);
Eric Yang, Saratoga, CA (US);
Junming Zhang, Hanzhou, CN;
Xiaopeng Dong, Shenzhen, CN;
Yuancheng Ren, Hangzhou, CN;
Wei Chen, Campbell, CA (US);
Eric Yang, Saratoga, CA (US);
Monolithic Power Systems, Inc., San Jose, CA (US);
Abstract
The present invention discloses a DC/AC converter in the backlight power supply system using cold cathode fluorescent lamp (CCFL). The DC/AC converter comprises a front end DC/DC converter, a full-bridge or half bridge inverter, and a piezoelectric transformer. Even with a wide range of input voltages, the front end DC/DC converter produces a predetermined DC voltage or a DC voltage with a predetermined small range and the cascaded inverter operates with a switching frequency close to the resonant frequency of the piezoelectric transformer, which helps the backlight power supply system achieve high efficiency.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile