SUPPLY MODULATOR FOR POWER AMPLIFIER
First Claim
1. A system comprising:
- a buck-boost converter;
a first buck converter connected at an output terminal of the buck-boost converter; and
a first linear amplifier (LA) comprising a first supply voltage input terminal connected to the output terminal of the buck-boost converter, and an output terminal connected to an output terminal of the first buck converter.
1 Assignment
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Accused Products
Abstract
According to some example embodiments, an apparatus includes a buck-boost converter, a first buck converter connected at an output terminal of the buck-boost converter, a second buck converter connected at the output terminal of the buck-boost converter, a first LA including a first supply voltage input connected to the output terminal of the buck-boost converter, and an output terminal connected to an output terminal of the first buck converter, where the first LA is configured to provide a first modulated supply voltage to a first PA of a first transmitter, and a second LA including a second supply voltage input connected to the output terminal of the buck-boost converter, and an output terminal connected to an output terminal of the second buck converter, where the second LA is configured to provide a second modulated supply voltage to a second PA of a second transmitter.
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Citations
20 Claims
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1. A system comprising:
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a buck-boost converter; a first buck converter connected at an output terminal of the buck-boost converter; and a first linear amplifier (LA) comprising a first supply voltage input terminal connected to the output terminal of the buck-boost converter, and an output terminal connected to an output terminal of the first buck converter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method comprising:
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receiving an input voltage at an input terminal of an apparatus from a battery source; and generating a first output voltage at an output terminal of a first linear amplifier (LA) of the apparatus by stepping up or stepping down the input voltage to provide a first supply voltage to a first power amplifier in a first transmitter of a user equipment (UE), wherein generating the first output voltage comprises; receiving, by the first LA, a supply voltage from an output terminal of a buck-boost converter, and generating the first output voltage at the output terminal of the first LA based on the supply voltage received from the output terminal of the buck-boost converter. - View Dependent Claims (13, 14, 15)
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16. A system comprising:
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a buck-boost converter; a first buck converter connected at an output terminal of the buck-boost converter; and a second buck converter connected at the output terminal of the buck-boost converter. - View Dependent Claims (17, 18, 19, 20)
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Specification