An illumination light communication apparatus to be connected to a light source that emits
illumination light due to a current from a constant current generation device, and that …

A light source control device for a vehicle is provided with a low beam and a high beam that
are connected in series, an LED driving circuit that supplies electricity to the low beam and …

A lighting system suitable for receiving two kinds of power signals includes a light emitting
unit, a switch control circuit, first and second power adjustment circuits, and first and second …

A circuit protection apparatus (100) is used to protect an LED drive circuit (200), and the
circuit protection apparatus (100) includes a first switch unit (1) and a snubber circuit (3). The …

SUMMARY FIG. 2 is a circuit diagram of a driver in accordance with various examples. In an
example, an apparatus includes a first transistor, a FIG. 3 is diagram of waveforms in …

A lamp group switching control device for switching and controlling a first lamp group and a
second lamp group is provided. When receiving a first power source for driving the first lamp …

Automotive lighting unit is provided that includes a lighting device equipped with one or
more OLED light sources, and an electronic device configured to determine a malfunction …