US 7,095,283 B2 · Supply circuit for power amplifier drivers

Abstract

An integrated power combiner is disclosed. The power combiner includes a first circular geometry primary winding having one or more inductive elements, such as an active winding with one or more driver stages. A circular geometry secondary winding is disposed adjacent to the first primary winding, such as an active winding with one or more driver stages. A second circular geometry primary winding is disposed adjacent to the secondary winding and has one or more inductive elements. One or more connections are provided between one or more of the inductive elements of the first circular geometry primary winding and one or more of the inductive elements of the second circular geometry primary winding.

Claims16

Dependent claims

An amplifier comprising:

a first driver stage having a first supply terminal, a second supply terminal, and an output terminal coupled to an input of a first amplifier stage;
a second driver stage having a first supply terminal, a second supply terminal, and an output terminal coupled to an input of a second amplifier stage;
a transistor having a gate, a source, and a drain, wherein:
the first driver is provided a first dc supply voltage at its first supply terminal;
the second driver is provided a second dc supply at its first supply terminal;
a conducting path which includes the transistor is provided so that supply current may conduct between the second terminals of the first and second driver stages;
and
a voltage is applied to the gate of the transistor so as to control a voltage of the second supply terminal of the first driver.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application

10/975,161Filed 28 Oct 2004 · us provisional application

Priority

28 Oct 2003

Published

US 2005/0200420 A115 Sep 2005

Granted

22 Aug 2006

Term ends

Not estimatedThe source records don’t support an estimate.

Classification17 codes

H03F 3/02
Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements: with tubes only
H03F 1/22
Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements: by use of cascode coupling, i.e.…
H03F 3/26
Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements: push-pull amplifiers; Phase-splitters therefor
H03F 3/343
DC amplifiers in which all stages are DC-coupled: with semiconductor devices only

Supply circuit for power amplifier drivers

Life of this patent

Supply circuit for power amplifier drivers

Life of this patent

Abstract

Claims16