STANDBY ELECTRIC POWER CUTOFF APPARATUS FOR ELECTRONIC PRODUCT

摘要

A standby electric power cutoff apparatus for an electronic product is disclosed. A power supply/cutoff unit (20) of the present invention comprises: a power switch (SW) for manually turning an input of an AC power source of the electronic product on/off; a pair of photo-triacs (21, 22) which are disposed in parallel to each other between input terminals of the AC power source, and which receive power through the power switch (SW); a photo-coupler (23) which is disposed between the power switch (SW) and the input terminals on one side of the AC power source and comprises a light emitting diode (D3) and a transistor (Q1) for receiving a light emitting signal from the light emitting diode; and a relay means which comprises a relay (K1) connected to a control unit (60) having a microcomputer (u-COM), and which supplies or cuts off the AC supply power to a power supply unit (30) by controlling operations for connecting or disconnecting contact points of the relay according to a control state of the control unit (60). In addition, a standby electric power cutoff apparatus for an electronic product (100) which controls functions using a remote controller (300). A power supply/cutoff unit (400), according to the present invention, comprises: IR-receiving triacs (110) which receive IR signals from the remote controller, and which are turned on so as to transfer the AC supply power to a power supply unit (130) when the IR signals are received; and an IR-receiving unit (120) for receiving the IR signals and transferring the received IR signals as control signals to a control unit (160).

主权项

1. A standby electric power cutoff apparatus of an electronic product (10), comprising:
a power unit (30) that generates and supplies operation power necessary in an operation of the electronic product from an AC supply power; a control unit (60) including a microcomputer (u-COM) performing general functions of a monitoring of a satisfaction-or-not of an operation state of the electronic product and predetermined control conditions, an operation, an analysis and a control; and a power supply/cutoff unit (20) that receives the AC supply power and supplies or cuts off the AC supply power to the power unit (30) of the electronic product under a control of the control unit (60), wherein the power supply/cutoff unit (20) comprises: a power switch (SW) that manually turns an AC power of the electronic product on/off; a pair of photo-triacs (21, 22) that pass through the power switch (SW) between input terminals of the AC power and are disposed in parallel, wherein each photo-triac (21 or 22) includes at least one light emitting diode (D2 or D4) of which one terminal is connected from the power switch (SW) to a triac (T1/T2 or T3/14) so that the photo-triac operates by receiving a light emitting signal from the diode; a photo-coupler (23) disposed between the power switch (SW) and one side input terminals of the AC power, and including at least one light emitting diode (D3) and a transistor (Q1) that is formed to receive a light emitting signal from the light emitting diode; and a relay means that includes a relay (K1) connected to the control unit (60), and supplies or cuts off the AC supply power to the power unit (30) by driving the relay (K1) according to a control state of the control unit (60) to connect or disconnect contact points (K1a/K1b and K1c/K1d) of the relay.