Patent ID: 9345077
Filing Date: 2016-05-17
CPC Classification: H05B

Claim Text:
1. A light emitting diode driving apparatus applied to an alternating current power supply apparatus and a plurality of light emitting diodes, the light emitting diode driving apparatus comprising: a single alternating current to direct current power supply apparatus, the alternating current power supply apparatus sending an alternating current power to the single alternating current to direct current power supply apparatus, the single alternating current to direct current power supply apparatus converting the alternating current power into a direct current power; a direct current power input contact electrically connected to the single alternating current to direct current power supply apparatus to receive the direct current power; a light signal control unit electrically connected to the direct current power input contact; a first light emitting diode driving unit electrically connected to the direct current power input contact, the light emitting diodes and the light signal control unit; and at least a second light emitting diode driving unit electrically connected to the direct current power input contact, the light emitting diodes and the first light emitting diode driving unit, wherein the first light emitting diode driving unit comprises: wherein the second light emitting diode driving unit comprises: wherein the light signal control unit, the first light emitting diode driving unit and the second light emitting diode driving unit are electrically connected in parallel to receive the direct current power through the direct current power input contact; wherein the light signal control unit sends a light signal to the first light emitting diode driving unit, and then the first light emitting diode driving unit sends the light signal to the second light emitting diode driving unit, so that the light signal is transmitted between the first light emitting diode driving unit and the second light emitting diode driving unit in series; and wherein the first light emitting diode driving subunits and the second light emitting diode driving subunits drive the light emitting diodes according to the light signal; the light signal conversion subunit is connected to a first of the second light emitting diode driving units and a last of the first light emitting diode driving subunits in series; the light signal conversion subunit boosts a voltage of the light signal, so that the light signal is sent to the first of the second light emitting diode driving subunits from the last of the first light emitting diode driving subunits.