Method and system for providing power management in a radio frequency power amplifier using adaptive envelope tracking
AssigneeNational Semiconductor Corporation
InventorsJames T. Doyle, Dragan Maksimovic, Yushan Li
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Abstract
A method for providing power management in a radio frequency power amplifier using adaptive envelope tracking is provided that includes receiving an input voltage. A power control signal is received. A feedback signal is received. An amplifier input signal is received. From the input voltage, a regulated power supply signal is generated based on the power control signal, the feedback signal, and the amplifier input signal.
Claims25
A method for providing power management in a radio frequency power amplifier using adaptive envelope tracking, comprising:
- receiving an input voltage;
- receiving a power control signal;
- receiving a feedback signal;
- receiving an amplifier input signal;
- and
- generating from the input voltage a regulated power supply signal using the power control signal, the feedback signal, and the amplifier input signal.
A method for providing power management in a radio frequency power amplifier using adaptive envelope tracking, comprising:
- receiving an input voltage;
- receiving a power control signal;
- receiving a digital feedback signal;
- receiving a digital amplifier input signal;
- converting the digital amplifier input signal into an analog amplifier input signal;
- converting the digital feedback signal into an analog feedback signal;
- and
- generating from the input voltage a regulated power supply signal using the power control signal, the analog feedback signal, and the analog amplifier input signal.
A system for providing power management in a radio frequency power amplifier using adaptive envelope tracking, comprising:
- a power amplifier operable to generate a radio frequency output signal based on a radio frequency input signal;
- and
- a power converter coupled to the power amplifier, the power converter operable to receive an input voltage, a power control signal, a feedback signal and an amplifier input signal and to generate from the input voltage a regulated power supply signal for the power amplifier using the power control signal, the feedback signal, and the amplifier input signal.
A system for providing power management in a radio frequency power amplifier using adaptive envelope tracking, comprising:
- a power amplifier operable to generate a radio frequency output signal based on a radio frequency input signal;
- and
- a power regulator coupled to the power amplifier, the power regulator operable to receive a power source signal, a power control signal, and an envelope signal and to generate from the power source signal a regulated power supply signal for the power amplifier based on the power control signal and the envelope signal.
Dependencies are inferred from the claim text.