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:
Jun. 01, 1993
Filed:
Feb. 14, 1992
Applicant:
Inventors:
Asim A Bajwa, San Jose, CA (US);
Christophe J Chevallier, Mountain View, CA (US);
Assignee:
Catalyst Semiconductor, Inc., Santa Clara, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H02M / ;
U.S. Cl.
CPC ...
363 60 ; 365226 ;
Abstract
A charge pump circuit is disclosed that enables the conversion of a low voltage to a higher voltage while delivering a substantial amount of current. The charge pump circuit includes a plurality of diode-capacitor voltage multiplier pump units connected in parallel with respect to each other. The plurality of pump units are switched at different times during the pump frequency to minimize noise generation. In one embodiment, the charge pump circuit is capable of delivering 8 mA of current.