Answer to Question #213756 in Electric Circuits for ravihara

Question

You are to design a 230-V ac powered LED bulb with (Z+5) Watts using 0.5-W, 150-mA surface mounted LED bulbs with 3.1 V typical forward voltage drop

1)Calculate the current, I required by the string of LEDs

2)calculate the size of the capacitor you must connect in series to the 230-V ac mains power to limit the current through the bulb to the desired value 

Answer 1

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