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. 12, 2013
Filed:
Aug. 28, 2012
Tsung-lin Chen, Taipei, TW;
Edward Yi Chang, Hsinchu, TW;
Wei-hua Chieng, Hsinchu, TW;
Stone Cheng, Hsinchu, TW;
Shyr-long Jeng, Hsinchu, TW;
Che-wei Chang, Taipei, TW;
Tsung-Lin Chen, Taipei, TW;
Edward Yi Chang, Hsinchu, TW;
Wei-Hua Chieng, Hsinchu, TW;
Stone Cheng, Hsinchu, TW;
Shyr-Long Jeng, Hsinchu, TW;
Che-Wei Chang, Taipei, TW;
National Chiao Tung University, Hsinchu, TW;
Abstract
The present invention provides a high-side driver circuit including a power transistor, the first transistor, the second transistor, the second capacitor, the second diode, a start-up circuit. The start-up circuit is coupled between a resistor and the second capacitor to complete a gate driving circuit. And, the aforementioned resistor can either be the gate resistance of the power transistor or an external resistor. The design of start-up circuit enables the functionality of the bootstrap capacitor of being charged to a designate voltage level. Thus, the depletion-mode transistor can be controlled to turn on/off without a floating voltage source or a negative voltage source.