Electrical equipment and remote control receiving remote signal by electro-magnetic induction

摘要

Electrical equipment includes a power supply unit, a signal receiving unit, a rectifying and filtering unit, a switch unit, and a control. The rectifying and filtering unit rectifies and filters remote signals received by the signal receiving unit to generate first voltage signals. The switch unit connects the power supply unit to an external power in response to receiving the first voltage signals. The control identifies a current mode of the electrical equipment and determines whether the first voltage signal persists longer than a predetermined time or not. The control outputs a second voltage signals in response to the duration time of the first voltage signals being greater than the predetermined time. The switch unit further connects the power supply unit to the external power according to the first voltage signal and the second voltage signal to start the electrical equipment.

主权项

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.