Related Resources: series parallel led

Series Parallel Led Calculator

Instrumentation & Electronics Design

The following calculator will determine the unknown series resistor value in ohms for the LED circuit shown.

LED Series/Parallel Current Limiting Resistance Calculator  
Fields in RED are to be edited by user  
Supply Voltage V    
      String # 1   String # 2   Additional Strings    
LED Forward Current mA   mA   mA    
Forward Voltage Per / LED V   V   V    
Number of LEDs              
Resistor Value  OHMs   OHMs   OHMs    
Adding a 2nd string of LEDs or any additional string   
will have ANY effect on any other previous resistance value.
Calculations are based on OHMs Law   

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