Power amplifier having a bias current control circuit
A power amplifier for use in a mobile handset includes an amplifying transistor for generating an output of the mobile handset, a bias circuit having a bias transistor and providing a bias current to bias the amplifying transistor, and a bias current control circuit, responsive to a control signal, for adjusting the bias current to control an operation current of the amplifying transistor. The control signal is generated by the mobile handset, and the control signal is determined by a power level of the output of the mobile handset.
- Country
- US (United States)
- Issue Date
- 2004-10-12
- Application Date
- 2003-03-14
- Application Number
- 10389053
- Registration Date
- 2004-10-12
- Registration Number
- 6803822
- Appears in Collection
- EE-Patent(특허)
- Files in This Item
- There are no files associated with this item.
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