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. 15, 1999
Filed:
Feb. 25, 1997
John H Pasternak, Campbell, CA (US);
Waferscale Integration Inc., Fremont, CA (US);
Abstract
A charge pump whose charge transfer switches are formed of charge transfer transistors and single pole, double throw (SPDT) switches each of which controls the gate of its corresponding transistor. Each SPDT switch has two throw contacts, one which is connected to the left diffusion of its corresponding charge transfer transistor and the other of which is connected to ground. Thus, the SPDT switch selectively connects the gate of the charge transfer transistor it controls between a diode connection (the first contact) and ground (the second contact). As a result, the charge transfer switches of the present invention are both fully on (when diode-connected) or fully off (when connected to ground).