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:
Jul. 03, 2007
Filed:
May. 05, 2005
Hidetaka Fukazawa, Miyagi, JP;
Kotaro Okada, Sakura, JP;
Hidetaka Fukazawa, Miyagi, JP;
Kotaro Okada, Sakura, JP;
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
A predriver circuit that is capable of reducing the size of a drive transistor while preventing a drive transistor's gate from being destroyed, thereby reducing power consumption. The predriver circuit includes a current mirror circuit, which has a pair of transistors that are connected to a predriver power supply voltage; a level shifter circuit, which is connected to a first transistor via a self-bias circuit; and a discharge transistor, which is connected to a second transistor. A terminal connecting the second transistor to the discharge transistor is connected to a top gate of a high-side MOS transistor for a half-bridge connected drive circuit.