This current may not be enough to drive an LED. However, say you have a circuit that is operating off the power supplied by a chip and the chip can only output a There will be enough powerįrom that power source to light up the LED without the need for a transistor. ![]() Of course, if you're powering an LED and you can connect the LED directly to a power source, you won't need a very sophisticated driver circuit. The point of this circuit is to demonstrate that if you do not have sufficient current powerful enough to drive an LED, you can connect a transistor to the circuitĮnough current amplification to drive it. We will simply use a transistor and a few resistors to bring about a circuit which, with minimal current, can produce enough current to drive and light an LED. ![]() In this project, we will show how to build a simple LED driver circuit.Ī LED driver circuit is a circuit which can power on and light an LED>
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