For further details contact: N.RAJASEKARAN B.E M.S 9841091117,9840103301. IMPULSE TECHNOLOGIES, old no 251, new no 304, 2nd floor, arcot road , vadapalani , chennai-26.

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A fully Digitally controlled Power supply unit for wireless Remote
controlled LED Lighting System
Abstract
This paper presents a fully digital controlled power supply unit for the
wireless controlled dimmable LED lighting system. The proposed power supply
designed using fly-back converter, which is directly controlled by a
microprocessor. Although the proposed circuit does not sense the AC input current
and has not AC input voltage feed-forward, it can achieve high power factor. The
proposed power supply directly regulates the output power for LED loads using the
PWM and PFM control of the fly-back converter without additional regulator. For
a wireless remote control function, the Zigbee modem is equipped in the proposed
power supply. A prototype set-up has been built and tested. Through the
experiment with a prototype set-up, the usefulness of the proposed power supply is
verified.
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