Power Amplifier, and Method of the Same

摘要

A power amplifier comprises a first inductor, a second inductor, a capacitor, a first MOS transistor, a second MOS transistor and a current source. The first and the second inductors are both connected to a first power supply. The first inductor and the second inductor form a differential inductor. The capacitor is connected to the first inductor at a first terminal of and to the second inductor at a second terminal. A drain of the first MOS transistor is connected to the first terminal of the capacitor. A drain of the second MOS transistor is connected to the second terminal of the capacitor. A first terminal of the current source is connected to sources of both the first and the second MOS transistors. A second terminal of the current source is connected to a second power supply. The current source outputs a variable current based on a bias voltage input.

主权项

1. A power amplifier comprising:
a first inductor and a second inductor both connected to a first power supply, the first inductor and the second inductor forming a differential inductor; a capacitor, wherein a first terminal of the capacitor is connected to the first inductor and a second terminal of the capacitor is connected to the second inductor; a first MOS transistor, wherein a drain of the first MOS transistor is connected to the first terminal of the capacitor; a second MOS transistor, wherein a drain of the second MOS transistor is connected to the second terminal of the capacitor; a current source, wherein a first terminal of the current source is connected to sources of both the first MOS transistor and the second MOS transistor, and a second terminal of the current source is connected to a second power supply, and the current source is configured to provide a variable current based on a bias voltage input.