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:
Dec. 30, 2008
Filed:
Dec. 21, 2006
Ta-yung Yang, Milpitas, CA (US);
Feng-cheng Tsao, Linbian Township, Pingtung County, TW;
Chuh-ching LI, Jhongli, TW;
Jesse R. Wang, Singong Township, Hsinchu County, TW;
Ta-Yung Yang, Milpitas, CA (US);
Feng-Cheng Tsao, Linbian Township, Pingtung County, TW;
Chuh-Ching Li, Jhongli, TW;
Jesse R. Wang, Singong Township, Hsinchu County, TW;
System General Corp., Taipei, TW;
Abstract
A transistor drive circuit of a power converter is developed for operating in a wide voltage range. It includes an N-type high-side transistor, a P-type high-side transistor and an N-type low-side transistor. A voltage clamp device is connected to the gate of the N-type high-side transistor to limit the maximum output voltage. A detection circuit is coupled to detect the supply voltage of the transistor drive circuit to generate a disable signal in response to the voltage level of the supply voltage. The disable signal is coupled to disable the P-type high-side transistor once the voltage level of the supply voltage is higher than a threshold voltage.