Patent ID: 8872443
Filing Date: 2014-10-28
Classification: H05B,Y02B

Abstract:
1. A lighting apparatus comprising: a first LED (Light Emitting Diode) unit connected between a power supply line through which dimming-controlled input electric power passes and a low-potential side reference line; a second LED unit configured to emit light with a color that differs from that emitted by the first LED unit, and arranged such that its high-potential side terminal is connected to the power supply line in parallel with the first LED unit; a conversion unit connected between the power supply line and the low-potential side reference line, and configured to convert the pulses of input electric power into a voltage; and a voltage dividing circuit connected between the output terminal of the conversion unit and the low-potential side reference line, and configured to divide the voltage converted by the conversion unit, wherein a dividing node of the voltage dividing circuit is connected to the low-potential side terminal of the second LED unit via a voltage follower.