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1. (WO2018040684) POWER CIRCUIT, POWER CIRCUIT CONTROL METHOD, AND STORAGE MEDIUM

Pub. No.:    WO/2018/040684    International Application No.:    PCT/CN2017/089397
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Thu Jun 22 01:59:59 CEST 2017
IPC: H02M 3/155
Applicants: ZTE CORPORATION
中兴通讯股份有限公司
Inventors: WANG, Linguo
王林国
GAO, Wei
高巍
ZHANG, Yang
张洋
ZHANG, Bin
张滨
Title: POWER CIRCUIT, POWER CIRCUIT CONTROL METHOD, AND STORAGE MEDIUM
Abstract:
Provided is a power circuit, a power circuit control method, and a storage medium. The power circuit comprises a buck-boost power conversion circuit (51) and a control circuit (52). The buck-boost power conversion circuit is configured to convert an input voltage (Vin) into an output voltage (Vout). The control circuit is configured to control a working state of the buck-boost power conversion circuit according to the input voltage such that the output voltage is greater than or equal to a first output voltage amplitude (Vout1) and less than or equal to a second output voltage amplitude (Vout2). When the input voltage is less than a preset low voltage threshold (Vin2), the output voltage is controlled to be fixed at the first output voltage amplitude; when the input voltage is between the preset low voltage threshold and a preset high voltage threshold (Vin3), the output voltage is controlled to be between the first output voltage amplitude and the second output voltage amplitude; and when the input voltage is greater than the preset high voltage threshold, the output voltage is controlled to be fixed at the second output voltage amplitude.