US Patent 7123085 Rail-to-rail charge pump with replica circuitry

Patent 7123085 was granted and assigned to Texas Instruments on October, 2006 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Texas Instruments

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

71230850

Patent Inventor Names

Richard Gu0

Date of Patent

October 17, 2006

Patent Application Number

109403750

Date Filed

September 14, 2004

Patent Primary Examiner

‌

Timothy P. Callahan

Patent abstract

The charge pump circuit includes: a charge pump output branch having a first transistor and a second transistor coupled in series; an output branch replica having a third transistor and a fourth transistor coupled in series; a feedback circuit coupled between the output branch and the output branch replica; a charge pump input circuit coupled to the charge pump output branch, and having first and second input branches; and an input circuit branch replica controlled by the feedback circuit and coupled to the charge pump input circuit.