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. 07, 2004
Filed:
Oct. 17, 2002
Applicant:
Inventor:
Robert LeChevalier, Golden, CO (US);
Assignee:
Clare Micronix Integrated Systems, Inc., Aliso Viejo, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 3/02 ;
U.S. Cl.
CPC ...
G05F 3/02 ;
Abstract
A circuit for increasing the voltage/current level of a signal to drive a power transistor from a low voltage input. The gate drive circuit comprises a voltage multiplier for increasing the voltage level of a low voltage input signal, a level shifter for shifting the voltage level of a logic signal to a level relative to a voltage signal produced by the voltage multiplier, and a source follower, connected to the level shifter, for increasing the current of the increased voltage, level shifted output signal of the level shifter. The resulting multiplied, shifted, and increased current signal can be used to drive a power transistor.