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US 2006/0049874 A1Published application
Differential power amplifier and method in class AB mode
AssigneeBroadcom Corporation
InventorMeng-An Pan
Life of this patent
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Abstract
The invention enables an increase in linearity of a power amplifier while reducing current consumption by supplying a bias current to the power amplifier in a Class AB mode.
Claims15
A power amplifier, comprising:
- a differential pair;
- a differential inductor coupled to the differential pair and to a power supply, wherein the differential inductor is not matched;
- and
- wherein the differential pair includes a bias transistor supplying a bias current to the amplifier in a Class AB mode.
1 more element
A method, comprising:
- presenting a load to a differential pair of the power amplifier;
- and
- supplying a bias current to the differential pair in a class AB mode;
- wherein the differential pair is coupled to a differential inductor, which is coupled to a power supply and the different inductor is not matched.
1 more element
Dependencies are inferred from the claim text.