| 摘要 |
A power supply device and a control method therefor. An energy extraction unit, a voltage detector and a data and detection result integration unit are added in a slave terminal. The energy extraction unit extracts electric energy from a master terminal, the voltage detector detects the electric energy, the data and detection result integration unit integrates the voltage state information, a slave single-wire data transceiver feeds back the voltage state information to the master terminal, and a data detection and processing unit of the master terminal detects and processes the voltage state information. In this way, the width of the power supply time of the master terminal is correspondingly adjusted, closed-loop power supply is realized, and the ripples and noises in the power source of the slave terminal are reduced. |
