US Patent No. 9,166,478

POWER SUPPLY DEVICE, METHOD FOR MANAGING POWER SUPPLY THEREOF AND WIRELESS COMMUNICATION TERMINAL


Patent No. 9,166,478
Issue Date October 20, 2015
Title Power Supply Device, Method For Managing Power Supply Thereof And Wireless Communication Terminal
Inventorship Dongping Hu, Shenzhen (CN)
Assignee ZTE Corporation, Shenzhen (CN)

Claim of US Patent No. 9,166,478

1. A wireless communication terminal, comprising a baseband working unit and a radio frequency (RF) working unit, and a direct
current (DC) power converter connected with both said baseband working unit and said RF working unit, said wireless communication
terminal further comprising: a power supply device, a central processing unit (CPU) and an envelope detection device, wherein:
said power supply device is configured to receive a voltage supplied by said DC power converter, provide an output voltage
to a power amplifier (PA) in said RF working unit, receive a control signal sent by said CPU, and adjust said output voltage
according to said control signal, so that said output voltage meets an envelope variation curve of an output signal of said
PA;

said envelope detection device is connected with said RF working unit and is configured to detect an envelope signal of the
output signal of said PA in real time, and send said envelope signal to said CPU;

said CPU is connected respectively with said DC power converter, said power supply device and said envelope detection device,
and the CPU is configured to: receive a voltage provided by said DC power converter, convert said envelope signal sent by
said envelope detection device into the control signal, and send the control signal to said power supply device.