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. 30, 1996
Filed:
Oct. 05, 1994
Roberto Gariboldi, Lacchiarella, IT;
Marcello Leone, Milan, IT;
SGS-Thomson Microelectronics S.r.l., Agrate Brianza, IT;
Abstract
A drive circuit includes a voltage source supplying a reference voltage at its output; a voltage elevating circuit connected to a supply voltage and to the output of the voltage source, and supplying at its output, under normal operating conditions, a drive voltage greater than the supply voltage and increasing with the reference voltage. The input of the voltage source is connected to the output of the voltage elevating circuit, and defines a positive feedback path resulting in an increase in the reference voltage corresponding to an increase in the drive voltage, and therefore results in a corresponding increase in the drive voltage up to a maximum permissible value, thus providing for a sufficient drive voltage for driving the gate-source junction of power MOS transistors, even in the presence of a low supply voltage.