POWER SYSTEM AND POWER WAKE-UP METHOD THEREOF

摘要

A power system including power devices connected in parallel and a wake-up bus is provided. Each power devices includes a wake-up signal pin, a power unit and a control unit. The control unit controls a logic level of the wake-up signal pin based on an operation status of the power unit. The AND logic operation performed on the logic level of the wake-up signal pin of each of the power devices results in the logic level of the wake-up bus. The control unit of each of the power devices monitors the logic level of the wake-up bus. When the logic level of the wake-up bus is at a second logic level, at least one power device under a standby mode is switched to an operation mode.

主权项

1. A power system comprising:
a plurality of power devices connected in parallel each comprising:
a wake-up signal pin;a power output unit; anda control unit electrically coupled to the power output unit and the wake-up signal pin, wherein the control unit controls a logic level of the wake-up signal pin based on an operation status of the power output unit; and a wake-up bus electrically coupled to the wake-up signal pin of each one of the power devices to become a synchronized signal bus, wherein an AND logic operation performed on the logic level of the wake-up signal pin of each of the power devices results in the logic level of the wake-up bus; wherein at least one of the power devices is under an operation mode, and at least one of the power devices is under a standby mode, the control unit of each of the power devices monitors the logic level of the wake-up bus to set the at least one of the power devices under the standby mode to the operation mode when the logic level of the wake-up bus is a second logic level.