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:
Sep. 01, 2015
Filed:
Mar. 14, 2013
Applicant:
Hittite Microwave Corporation, Chelmsford, MA (US);
Inventor:
Joseph Cuggino, Westford, MA (US);
Assignee:
HITTITE MICROWAVE CORPORATION, Chelmsford, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/19 (2006.01); H03F 3/195 (2006.01); H03F 1/30 (2006.01);
U.S. Cl.
CPC ...
H03F 3/195 (2013.01); H03F 1/302 (2013.01); H03F 3/19 (2013.01); H03F 2200/555 (2013.01); H03F 2200/93 (2013.01);
Abstract
An internally, resistively, sensed Darlington amplifier includes a Darlington amplifier, at least an input transistor, an output transistor, a resistive divider, a signal input node, and a signal output node. The Darlington amplifier is responsive to an input signal and configured to generate an output signal. An internal bias setting resistor is coupled between the signal output node, a collector of the output transistor, and the resistive divider. The bias setting resistor is configured to set and regulate the bias current of the Darlington amplifier.