WIRELESS COMMUNICATION SYSTEM, POWER SUPPLY SYSTEM, AND TERMINAL DEVICE

WIRELESS COMMUNICATION SYSTEM, POWER SUPPLY SYSTEM, AND TERMINAL DEVICE

A wireless communications system is provided. A power supply circuit (320) in the wireless communications system includes an envelope tracking modulator, and the envelope tracking modulator may be coupled to a first power amplifier circuit (PA31) and a second power amplifier circuit (PA32), so that...

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Hauptverfasser: CHANG, Hsiang Hui, HU, Feiyang, TANG, Daiping
Format: Patent
Sprache:eng ; fre ; ger
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AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
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creator CHANG, Hsiang Hui
HU, Feiyang
TANG, Daiping
description A wireless communications system is provided. A power supply circuit (320) in the wireless communications system includes an envelope tracking modulator, and the envelope tracking modulator may be coupled to a first power amplifier circuit (PA31) and a second power amplifier circuit (PA32), so that the power supply circuit (320) supplies power to the first power amplifier circuit (PA31) and the second power amplifier circuit (PA32). When a transmit signal that is output by a processor (310) meets a first bandwidth range, the power supply circuit (320) supplies power to the first power amplifier circuit (PA31), and the first power amplifier circuit (PA31) amplifies power of the transmit signal. When the transmit signal that is output by the processor (310) meets a second bandwidth range, the power supply circuit (320) supplies power to the second power amplifier circuit (PA32), and the second power amplifier circuit (PA32) amplifies the transmit signal. The first power amplifier circuit (PA31) and the second power amplifier circuit (PA32) that have different bandwidths share one power supply circuit (320). This helps reduce costs and reduce an area of a printed circuit board.
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A power supply circuit (320) in the wireless communications system includes an envelope tracking modulator, and the envelope tracking modulator may be coupled to a first power amplifier circuit (PA31) and a second power amplifier circuit (PA32), so that the power supply circuit (320) supplies power to the first power amplifier circuit (PA31) and the second power amplifier circuit (PA32). When a transmit signal that is output by a processor (310) meets a first bandwidth range, the power supply circuit (320) supplies power to the first power amplifier circuit (PA31), and the first power amplifier circuit (PA31) amplifies power of the transmit signal. When the transmit signal that is output by the processor (310) meets a second bandwidth range, the power supply circuit (320) supplies power to the second power amplifier circuit (PA32), and the second power amplifier circuit (PA32) amplifies the transmit signal. 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A power supply circuit (320) in the wireless communications system includes an envelope tracking modulator, and the envelope tracking modulator may be coupled to a first power amplifier circuit (PA31) and a second power amplifier circuit (PA32), so that the power supply circuit (320) supplies power to the first power amplifier circuit (PA31) and the second power amplifier circuit (PA32). When a transmit signal that is output by a processor (310) meets a first bandwidth range, the power supply circuit (320) supplies power to the first power amplifier circuit (PA31), and the first power amplifier circuit (PA31) amplifies power of the transmit signal. When the transmit signal that is output by the processor (310) meets a second bandwidth range, the power supply circuit (320) supplies power to the second power amplifier circuit (PA32), and the second power amplifier circuit (PA32) amplifies the transmit signal. The first power amplifier circuit (PA31) and the second power amplifier circuit (PA32) that have different bandwidths share one power supply circuit (320). This helps reduce costs and reduce an area of a printed circuit board.</abstract><oa>free_for_read</oa></addata></record>
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subjects AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
title WIRELESS COMMUNICATION SYSTEM, POWER SUPPLY SYSTEM, AND TERMINAL DEVICE
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