Patent ID: 9576477
Date: 2017-02-21
CPC Classifications: G08C

Claim:
1. An electrical equipment comprising: a power supply unit; a signal receiving unit to receive a remote control signal; a rectifying and filtering unit connected to the signal receiving unit to rectify and filter the remote control signal to generate a first voltage signal; a switch unit connected to the rectifying and filtering unit, the power supply unit, and an external power source, wherein the switch unit connects the power supply unit to the external power source when the switch unit receives the first voltage signal; a control connected to the power supply unit and the rectifying and filtering unit, to identify a current mode of the electrical equipment and to determine whether the first voltage signal persists longer than a predetermined time, wherein the current mode of the electrical equipment comprises a start up mode and a shut down mode; and an isolation unit configured to separate the control from the rectifying and filtering unit, thus the control outputs the second voltage signal to the switch unit wherein the isolation unit comprises a first diode with an anode end connected to the rectifying and filtering unit; and a first resistor with one end connected to a cathode of the first diode and with the other end connected to the switch unit and the control; wherein the control further outputs a second voltage signal to the switch unit when the first voltage signals persists longer than the predetermined time and the electrical equipment is in the shut down mode, wherein the switch unit connects the power supply unit to the external power source according to the first voltage signal and the second voltage signal, to start the electrical equipment.