Led Lighting without transformer

LED lamp works with 220V AC transformer circuit. Half-time substitute 1 uf non-polar capacitor transformer is used to run the leds. High-voltage transformer is connected in series with the LEDs to work all prepared accordingly during the assembly drawing of the printed circuit board LEDs + - terminals of the mix.

The amount of light use it as a work light at night is not bad. Sink, small rooms, entrance areas, such as sufficient lighting. Have you used mcd LEDs (light power) not less than 2000 .. Approximately 55 pieces of white LED LED lighting circuit of the transformer is used.

CAUTION Be careful when working with high voltage without a transformer circuit Led Lamp capacitor connections to make sure + - connect the high voltage polarity may be large explosions before running the insured circuit Power Line, Use protective glasses and gloves

Let me give a few details about the materials to be used primarily have a fuse on the PCB drawing, but I can not use optional insurance market suggest to use at least 220V AC power cord plug has a small type glass fuses .. 1uF 400v 1uF capacitor value on the material usually omit the "105" writer working voltage 250V AC or 275V AC can write also manipulate them in + çıkışda 20 Ohm 1W resistor will be at least


Drawing of the proteus ares pcb LED lighting circuit:
circuit led lamp without transformer.rar

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