STATUS INDICATOR CIRCUIT FOR A DIMMER SWITCH |
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| 申请号 | PCT/US2006018377 | 申请日 | 2006-05-11 | 公开(公告)号 | WO2006124558A3 | 公开(公告)日 | 2007-05-10 |
| 申请人 | LUTRON ELECTRONICS CO; SALVESTRINI CHRISTOPHER JAMES; | 发明人 | SALVESTRINI CHRISTOPHER JAMES; | ||||
| 摘要 | A load control device for controlling the amount of power delivered to an electrical load from an AC power source comprises a semiconductor switch having a control input, a triggering circuit, a timing circuit, and a status indicator circuit. Preferably, the status indicator circuit includes a light-emitting diode in a rectifier bridge. In a first embodiment, the status indicator circuit is coupled in series with a capacitor in the timing circuit such that the status indicator is illuminated to a dim level when the load is not powered and the status indicator is illuminated to a bright level when the load is powered. In a second embodiment, the status indicator circuit is coupled in series with a control input of the semiconductor switch such that the status indicator is not illuminated when the load is not powered and the status indicator is illuminated when the load is powered. | ||||||
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