| 摘要 |
The present invention relates to a power supply of the RF switch controller of a light, which allows an electronic switch to be turned on/off manually, allows an RF wireless remote controller to remotely turn on/off a plurality of lights installed in each room, and extracts current from each transformer when a plurality of transformers are connected in series to a power line at a light switch. Thus, necessary power may be supplied to the RF switch controller. The device of the present invention includes: light switching units turning on/off a plurality of lights L1 to L3, an RF switch controller controlling the light switching units through the RF wireless signal of a remote controller, and a power supply unit supplying power consumed by the RF switch controller. The power supply unit includes: a current booster and a first rectifying unit for extracting and boosting micro current, which flows through the first light switching unit, to high current and rectifying the high current into DC power; a second rectifying unit and an AC/DC converter for rectifying and dropping DC power supplied to a main power line and the first light switching unit when the first light switching unit is off; and a DC/DC converter for dropping the DC power extracted through the first rectifying unit and supplying it to the RF switch controller when the light L1 is on, and dropping the DC power outputted through the AC/DC converter and supplying it to the RF switch controller. |
