Patent ID: 8053923

Claim:
A light-emitting diode lighting apparatus for a vehicle light comprising: a DC/DC converter section having a plurality of boosting circuits which boost DC voltage fed from a DC power supply and are connected in parallel; a light emitting section having a plurality of light-emitting diodes connected in series; and a control section for driving said plurality of boosting circuits at an identical period, and for controlling the individual boosting circuits of said DC/DC converter section in a manner that shifts individual phases of said plurality of boosting circuits from each other such that a current supplied to said plurality of light emitting diodes from said plurality of boosting circuits is never zero, thereby preventing light emitted by the plurality of light emitting diodes from becoming intermittent, wherein each of said plurality of boosting circuits include a transformer, a switching device, a diode, and a capacitor, where a drain of said switching device is connected to a tap of said transformer and a first side of said capacitor, a second terminal of said transformer is connected to an anode of said diode, a gate of said switching device is connected to said control section and a second side of said capacitor is connected to ground, and wherein said control section receives a detected voltage signal from the plurality of light emitting diodes and a signal from the tap of said transformer for driving each of said switching devices.