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:
Apr. 14, 2009
Filed:
Dec. 16, 2005
Arlo Aude, Atlanta, GA (US);
Arlo Aude, Atlanta, GA (US);
National Semiconductor Corporation, Santa Clara, CA (US);
Abstract
A kick back compensated charge pump circuit with kicker capacitor is disclosed. The charge pump circuit comprises a pump up circuit that comprises a first PMOS transistor and a second PMOS transistor in a cascode configuration and coupled to a first kicker capacitor. The charge pump circuit also comprises a pump down circuit that comprises a first NMOS transistor and a second NMOS transistor in a cascode configuration and coupled to a second kicker capacitor. The kicker capacitors increase the speed of the charge pump circuit by charging and discharging a gate to source capacitance (CGS) of the pump up circuit and of the pump down circuit of the charge pump circuit.