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4
questions
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50 watt high-power LED current problem [duplicate]
I am using this 50 watt high power LED:
.
And want to power it using this voltage booster:
From 12 V to 34 V as the requirements of the LED datasheet.
Will it work?
I read that I need to limit the ...
0
votes
1
answer
127
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Voltages to keep my circuit running at 200mA with NMOSFETS
Im trying to build a circuit to send information using IR led, using pulse signals
my leds (TSAL6400) operates at 1.35V, and their maximum pulse current is rated 200mA
After struggling a bit with ...
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0
votes
2
answers
304
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If I drive an LED whose forward voltage is 2V with a source that's 3.3V limited to 20ma, will I harm the LED?
Background: I built a 10x20 LED matrix for use inside a jack-o-lantern. The matrix is driven by 74HC595 shift registers that are connected to an Arduino.
I've attached the Vcc of the shift registers ...
- 782
0
votes
2
answers
586
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Is resistor on LED's necessary after voltage drop?
Let's say we have perfect 5V DC 0.1A power supply. Obviously for one LED we would need a resistor (I'm well aware of Ohm's law), BUT what if we connect bunch of LED's in series. And the current drain ...
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