Power supplying device with low standby power consumption

摘要

A power supplying device is electrically connected to an alternating current (AC) power supplier and an electronic system. The power supplying device includes a rectifier, a power converter, a controller, a power manager, and a switch component. The power converter is electrically connected to the rectifier and includes a first electric power outputting terminal and a standby electric power outputting terminal. The standby electric power outputting terminal is electrically connected to the electronic system. The controller is electrically connected to the power converter. The power manager is electrically connected to the controller and the electronic system. The switch component is electrically connected to the first electric power outputting terminal, the power manager, and the electronic system. The switch component conducts or cuts-off an electric power outputted form the first electric power outputting terminal and transmitting to the electronic system according to controls of the power manager.

主权项

1. A power supplying device with low standby power consumption electrically connected to an alternative power (AC) supplier and an electronic system, the power supplying device with low standby power consumption receiving an AC electric power outputted by the AC supplier and outputting a converted electric power to the electronic system, the power supplying device with low standby power consumption comprising:
a rectifier comprising a power factor correction circuit, the rectifier used for converting the AC electric power into a direct current (DC) electric power, the power factor correction circuit correcting the rectified DC electric power for decreasing the inputting current; a power converter electrically connected to the rectifier and comprising a first electric power outputting terminal and a standby electric power outputting terminal, the electronic system electrically connected to the standby electric power outputting terminal, the power converter receiving the DC electric power decreasing the inputting current and outputted from the rectifier; a controller electrically connected to the power converter; a power manager electrically connected to the controller and the electronic system; and a switch component electrically connected to the first electric power outputting terminal, the power manager, and the electronic system, the switch component conducting or cutting-off an electric power outputted from the first electric power outputting terminal according to controls of the power manager, wherein when the electronic system is operated in a standby mode, the power manager makes the switch component open, such that the electric power outputted from the first electric power outputting terminal does not transmit to the electronic system.