Assertion: led | /r/HasProperty | v f
Facets:
Source sentences:
text: 2.5.9 can easily be calculated by subtracting the appropriate forward voltage for the LED (V F ) from the supply voltage (V S ) to give the required voltage across the resistor (V R ), and then dividing V R by the required forward current (I F ).
text: The series resistor value R S is calculated by simply using Ohm´s Law, by knowing the required forward current I F of the LED, the supply voltage V S across the combination and the expected forward voltage drop of the LED, V F at the required current level, the current limiting resistor is calculated as:
text: The series resistor value R S is calculated by simply using Ohm´s Law, by knowing the required forward current I F of the LED, the supply voltage V S across the combination and the expected forward voltage drop of the LED, V F at the required current level, the current limiting resistor is calculated as: