Power amplifying circuit
AssigneeShenzhen South Silicon Valley Microelectronics Co., Limited
InventorsPei-Si Wu, Hua-Yu Liao
Life of this patent
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Abstract
A power amplifying circuit includes a switching circuit, an amplifier and a load. The switching circuit receives a first supply voltage and a second supply voltage. When the switching circuit is in a first operation mode, the first supply voltage is provided to a node. When the switching circuit is in a second operation mode, the second supply voltage is provided to the node. The amplifier receives a first input signal and a second input signal, and outputs a first output signal and a second output signal from a first output terminal and a second output signal, respectively. The load includes a first inductor and a second inductor. The first inductor is connected between the node and the first output terminal. The second inductor is connected between the node and the second output terminal.
Claims12
A power amplifying circuit, comprising:
- a switching circuit receiving a first supply voltage and a second supply voltage, wherein the first supply voltage is provided to a node when the switching circuit is in a first operation mode, and the second supply voltage is provided to the node when the switching circuit is in a second operation mode;
- an amplifier receiving a first input signal and a second input signal, and outputting a first output signal and a second output signal from a first output terminal and a second output terminal, respectively;
- a first matching network connected with the first output terminal and the second output terminal;
- an antenna connected with the first matching network for generating a wireless radio frequency signal;
- and
- a load comprising a first inductor and a second inductor, wherein the first inductor is connected between the node and the first output terminal, and the second inductor is connected between the node and the second output terminal;
- wherein the amplifier and the switching circuit are included in an IC chip, and the IC chip, the load, the first matching network and the antenna are mounted on a circuit board.
A power amplifying circuit, comprising:
- a switching circuit receiving a first supply voltage and a second supply voltage, wherein the first supply voltage is provided to a node when the switching circuit is in a first operation mode, and the second supply voltage is provided to the node when the switching circuit is in a second operation mode;
- a first amplifier and a second amplifier receiving a first input signal and a second input signal, wherein when one of the first amplifier and the second amplifier is enabled, and a first output signal and a second output signal are outputted from a first output terminal and a second output terminal, respectively;
- a first matching network connected with the first output terminal and the second output terminal;
- an antenna connected with the first matching network for generating a wireless radio frequency signal;
- and
- a load comprising a first inductor and a second inductor, wherein the first inductor is connected between the node and the first output terminal, and the second inductor is connected between the node and the second output terminal;
- wherein the first amplifier, the second amplifier and the switching circuit are included in an IC chip, and the IC chip, the load, the first matching network and the antenna are mounted on a circuit board.
Dependencies are inferred from the claim text.