Power adaptor

摘要

A power adaptor is provided. The power adaptor includes a connector, a rectifier, a filter, a regulator and a switching unit coupled between the rectifier and the filter. The connector receives an alternating current (AC) power. The rectifier provides a direct current (DC) power according to the AC power. The filter filters the DC power to generate a filtered signal. The regulator provides an output voltage according to the filtered signal. A switching state of the switching unit corresponds to the DC power.

主权项

1. A power adaptor, comprising:
a first connector, receiving an alternating current (AC) power; a rectifier, providing a direct current (DC) power according to the AC power; a filter, filtering the DC power to generate a filtered signal; a regulator, providing an output voltage according to the filtered signal; and a second connector, providing the output voltage to an electronic device when connected to the electronic device, wherein a first ground terminal of the rectifier is coupled to second ground terminals of the filter and the regulator via the second connector and the electronic device, wherein the first ground terminal of the rectifier is separated from the second ground terminals of the filter and the regulator when the second connector is not connected to the electronic device, wherein the second connector comprises an isolator main body, a first sheet metal and a second sheet metal separate from the first sheet metal, wherein the first and second sheet metals are disposed on outer ring of the isolator main body, and the first sheet metal is coupled to the first ground terminal and the second sheet metal is coupled to the second ground terminals.