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:
May. 17, 2011
Filed:
May. 02, 2008
Ben Wee-guan Tan, Singapore, SG;
Ben Wee-Guan Tan, Singapore, SG;
Marvell International Ltd., , BM;
Abstract
A feedback circuit disposed across input and output terminals of an amplifier is adapted so as not inject DC current back into the input terminal of the amplifier. The feedback circuit includes, in part, first and second current sources, a transistor, and a resistive load. The first current source supplies current to one of the terminals of the transistor in communication with an input terminal of the amplifier. The second current source receives this current and diverts it to a voltage supply. The transistor is maintained in the active region of operation. The resistive load has a first terminal in communication with an output terminal of the amplifier and a second terminal in communication with the transistor. The DC voltages at the two terminals of the resistive load are substantially equal so as to inhibit DC current flow therethrough.