Tuesday, August 25, 2009

LEDs

Posted by Yawar Abbass at 12:57 AM

LED Series Resistor Value ( R=(VSupply-VLED)/LEDCurrent) ):

Calculates the correct value for the dropping resistor(R) used in series with an LED. VSupply is the supply voltage in volts. VLED is the LEDs operating voltage in volts. LEDCurrent is the current required by the LED in Amps.

Supply Voltage:

LED Voltage:

LED Current:

Calculated R:

Ohms

 

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