All Questions
4
questions
0
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LED circiuit for a current limited circuit
I have the following requirements for a circuit:
The circuit is supplied from a 500mA current limited voltage source
The circuit should indicate the status of the supply, i.e. if it is in current ...
- 125
1
vote
3
answers
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Switching circuit for driving LED at different current values
simulate this circuit – Schematic created using CircuitLab
Above schematic is for limiting current to 4A when battery is connected to LEDs.
Datasheet of LED(BXRA-56C5300H 50W) are 23.5 Vf and 2....
- 9
1
vote
3
answers
364
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User power supply current limit to avoid current limiting resistors for LED
everyone!
I would like to know if I can avoid to use current limiting resistors by pushing my power supply to its limits (it already sounds not like a good idea... btw...).
Say I have a 3.3V power ...
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10
votes
4
answers
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Why is LED lighting up despite Supply voltage < Forward voltage
I have an LED which has specified Typical forward voltage of 3.5V and Maximum forward voltage 3.9V.
I applied 3.3V across it with a 300 Ohm resistor in series. Why did it light up?
I am wondering if ...
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