Power management architecture for modulated and constant supply operation
First Claim
1. Circuitry comprising a parallel amplifier circuit and a switch mode power supply converter configured to cooperatively operate with the parallel amplifier circuit to form a power management system, which is configured to:
- operate in one of at least a high power modulation mode, a medium power modulation mode, and a low power average power tracking mode;
during the high power modulation mode and the medium power modulation mode, control a power amplifier supply voltage to a radio frequency power amplifier to provide envelope tracking; and
during the low power average power tracking mode, control the power amplifier supply voltage to the radio frequency power amplifier to provide average power tracking.
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Accused Products
Abstract
A power management system, which includes a parallel amplifier circuit and a switch mode power supply converter, is disclosed. The switch mode power supply converter cooperatively operates with the parallel amplifier circuit to form the power management system. The power management system operates in one of a high power modulation mode, a medium power modulation mode, and a low power average power tracking mode. Further, during the high power modulation mode and the medium power modulation mode, the power management system controls a power amplifier supply voltage to a radio frequency power amplifier to provide envelope tracking. During the low power average power tracking mode, the power management system controls the power amplifier supply voltage to the radio frequency power amplifier to provide average power tracking.
397 Citations
36 Claims
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1. Circuitry comprising a parallel amplifier circuit and a switch mode power supply converter configured to cooperatively operate with the parallel amplifier circuit to form a power management system, which is configured to:
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operate in one of at least a high power modulation mode, a medium power modulation mode, and a low power average power tracking mode; during the high power modulation mode and the medium power modulation mode, control a power amplifier supply voltage to a radio frequency power amplifier to provide envelope tracking; and during the low power average power tracking mode, control the power amplifier supply voltage to the radio frequency power amplifier to provide average power tracking. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A method comprising:
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cooperatively operating a switch mode power supply converter with a parallel amplifier circuit to provide a power amplifier supply voltage; operating in one of at least a high power modulation mode, a medium power modulation mode, and a low power average power tracking mode; during the high power modulation mode and the medium power modulation mode, controlling the power amplifier supply voltage to a radio frequency power amplifier to provide envelope tracking; and during the low power average power tracking mode, controlling the power amplifier supply voltage to the radio frequency power amplifier to provide average power tracking.
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Specification