Power amplifier circuit with adjustable bias voltage
AssigneesSemiconductor Manufacturing International (Shanghai) Corporation, Semiconductor Manufacturing International (Beijing) Corporation
InventorHAO SUN
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Abstract
A power amplifier circuit includes a differential to single-ended converter, a gain stage circuit, a driver stage circuit, and an output stage circuit connected in series, and a bias circuit connected to a bias voltage port of the gain stage circuit for adjusting a bias voltage of the gain stage circuit. The bias voltage is adjustable to ensure low power consumption, improve the efficiency of the power amplifier circuit and prevent process, voltage and temperatures from affecting the performance of the power amplifier circuit.
Claims19
A power amplifier circuit, comprising:
- a differential to single ended converter, a gain stage circuit, a driver stage circuit, and an output stage circuit connected in series;
- and
- a bias circuit connected to a bias voltage port of the gain stage circuit for adjusting a bias voltage of the gain stage circuit.
A method for forming a power amplifier circuit having a differential to single ended converter, a gain stage circuit, a driver stage circuit, an output stage circuit, and a bias circuit, the method comprising:
- connecting the differential to single ended converter, the gain stage circuit having a bias voltage port, the driver stage circuit, and the output stage circuit in series;
- connecting the bias circuit to the bias voltage port of the gain stage circuit so as to adjust a bias voltage of the gain stage circuit.
Dependencies are inferred from the claim text.