Patent ID: 7864551

Claim:
A power supply device with a system switch circuit, and the power supply device comprising: a stationary power system, for producing a first standby signal and generating a stationary power after the stationary power system obtains an input power and a reference frequency signal; a power management unit, triggered by a remote ON/OFF signal for outputting a bias voltage power after the power management unit obtains the first standby signal; a primary power system, driven by the bias voltage power to convert the input power into a primary output power; a system switch circuit, triggered by the remote ON/OFF signal to interrupt the stationary power system from obtaining an electric power path of the input power or the reference frequency signal for the stationary power, and triggered by the remote ON/OFF signal again to conduct the stationary power system for obtaining the electric power path of the input power or the reference frequency signal to generate the stationary power.