Amplifier circuit with a current source
AssigneeIntel Corporation
InventorChuanzhao Yu
Life of this patent
Estimating the term…
Abstract
Amplifier circuits, radio communication circuits, radio communication devices, and methods provided in this disclosure. The amplifier circuit may include an amplifier configured to amplify an input signal to provide an output signal. The output signal of the amplifier may include a direct current (DC) signal. The amplifier circuit may further include a current source coupled to the amplifier. The current source may be configured to receive an electrical supply. The current source may further be configured to divide the direct current (DC) signal of the output signal based on the electrical supply.
Claims25
An amplifier circuit comprising:
- an amplifier configured to amplify an input signal to provide an output signal, wherein the output signal comprises a direct current (DC) signal;
- a current source coupled to the amplifier, the current source configured to
- receive an electrical supply;
- divide the direct current (DC) signal of the output signal based on the electrical supply, wherein the current source comprises a shunt circuit configured to partially shunt the DC signal of the output signal in which an amount of shunted DC signal is based on the electrical supply.
A mobile radio communication circuit comprising:
- an up-converter configured to up-convert a baseband communication signal to a radio frequency (RF) communication signal;
- and
- an amplifier configured to amplify an input signal comprising the radio frequency (RF) communication signal to provide an output signal, wherein the output signal comprises a direct current (DC) signal;
- a current source coupled to the amplifier, the current source configured to
- receive an electrical supply;
- divide the direct current (DC) signal of the output signal based on the electrical supply, wherein the current source comprises a shunt circuit configured to partially shunt the DC signal of the output signal in which an amount of shunted DC signal is based on the electrical supply.
A mobile radio communication device comprising:
- a mobile radio communication circuit comprising:
- an up-converter configured to up-convert a baseband communication signal to a radio frequency (RF) communication signal;
- and
- an amplifier circuit comprising:
- an amplifier configured to amplify an input signal comprising the radio frequency (RF) communication signal to provide an output signal, wherein the output signal comprises a direct current (DC) signal;
- a current source coupled to the amplifier, the current source configured to
- receive an electrical supply;
- divide the direct current (DC) signal of the output signal based on the electrical supply, wherein the current source comprises a shunt circuit configured to partially shunt the DC signal of the output signal in which an amount of shunted DC signal is based on the electrical supply;
- an antenna configured to transmit an amplifier output signal provided by the amplifier circuit.
A method comprising:
- receiving an input signal;
- amplifying the input signal to provide an output signal comprising a direct current (DC) signal by an amplifier;
- receiving an electrical supply by a current source;
- dividing the direct current (DC) signal of the output signal by the current source based on the electrical supply, wherein the dividing the DC signal comprises partially shunting, by a shunt circuit, the DC signal of the output signal in which an amount of shunted DC signal is based on the electrical supply.
Dependencies are inferred from the claim text.