Method and apparatus for controlling output power in power amplifiers
First Claim
1. An apparatus, comprising:
- a power amplifier module; and
a transceiver module coupled to provide a signal to an input of the power amplifier module, the transceiver module including;
an integrated temperature sensor to sense an instantaneous operating temperature of the transceiver and providing a first sensor output signal dependent upon the operating temperature;
an integrated voltage sensor to sense a supply voltage and generate a second sensor output signal dependent upon the instantaneous supply voltage; and
a processor configured to receive the first and second sensor output signals, provide a control signal to the power amplifier module to reduce the output power of the power amplifier responsive to the first and the second sensor output signals, wherein the control signal includes a bias signal based in part on a target value for the output power of the power amplifier module.
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Accused Products
Abstract
Some embodiments discussed relate to a method and apparatus, comprising a power amplifier module, a transceiver module coupled to provide a signal to an input of the power amplifier module. The transceiver module comprising an integrated temperature sensor to sense an instantaneous operating temperature of the transceiver and providing a first sensor output signal dependent upon the operating temperature, and an integrated voltage sensor to sense a transceiver supply voltage and generate a second sensor output signal dependent upon the instantaneous transceiver supply voltage, and a processor configured to receive the first and the second sensor output signals, provide a control signal to the power amplifier module to reduce the output power of the power amplifier responsive to the first and the second sensor output signals.
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Citations
16 Claims
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1. An apparatus, comprising:
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a power amplifier module; and a transceiver module coupled to provide a signal to an input of the power amplifier module, the transceiver module including; an integrated temperature sensor to sense an instantaneous operating temperature of the transceiver and providing a first sensor output signal dependent upon the operating temperature; an integrated voltage sensor to sense a supply voltage and generate a second sensor output signal dependent upon the instantaneous supply voltage; and a processor configured to receive the first and second sensor output signals, provide a control signal to the power amplifier module to reduce the output power of the power amplifier responsive to the first and the second sensor output signals, wherein the control signal includes a bias signal based in part on a target value for the output power of the power amplifier module. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system comprising:
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a power amplifier configured to receive an input signal and amplify the input signal to generate an output signal; and a transceiver including; an integrated temperature sensor to sense an instantaneous operating temperature within the transceiver and provide a first sensor output signal dependent upon that operating temperature, an integrated voltage sensor to sense a supply voltage and generate a second sensor output signal dependent upon the instant supply voltage, and a processor configured to receive the first and second sensor output signal and calculate a target value for the power of the output signal of the power amplifier; and a power control module adapted to receive the target value for the power of the output signal of the power amplifier and to generate a bias signal using the target value for the power of the output signal of the power amplifier, the bias signal coupled to the power amplifier to reduce the power of the output signal of the power amplifier in response to the operating temperature and supply voltage. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A method comprising:
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sensing an instantaneous operating temperature within a transceiver module and generating a first feedback signal based the difference between an instantaneous operating temperature and a preset temperature threshold; sensing a supply voltage within the transceiver module and generating a second feedback signal based on the difference between the supply voltage and a preset supply voltage; calculating a target value for output power of a power amplifier based on the first feedback signal and the second feedback signal; generating a bias signal in the transceiver module based on the target value for an output power of the power amplifier; and coupling the bias signal to the power amplifier to reduce the output power of the power amplifier towards the target value. - View Dependent Claims (15, 16)
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Specification