| 摘要 |
<p>The prevent invention provides an AC dimmer output signal phase detector and a dimming signal generator for an LED. It is a phase angle extracting and brightness signal outputting device which extracts a phase angle from the output power of an AC dimmer and transmits a brightness signal to an LED lighting device for dimming control. It comprises an electronic switch part which is installed between an AC dimmer (50) and an LED lighting device (40), connects and blocks an LED lighting device supply power source; a phase extractor (33) which extracts a phase from the signal of the AC dimmer (50); and a microprocessor (32) which calculates a phase angle from the phase-detected signal and performs successive logic.</p> |
