Electronics 01
Why Do LEDs Need a Resistor? The I-V Curve Explained
An LED's current rises exponentially with voltage: 0.1 V extra takes a red LED from 20 mA to 56 mA. Here is the physics, the resistor math and the fixes.
An LED's current rises exponentially with voltage: 0.1 V extra takes a red LED from 20 mA to 56 mA. Here is the physics, the resistor math and the fixes.