Category: led light
Automotive LED Timing Light
| May 20, 2011 | Posted by admin under led light |
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A useful timing strobe can be constructed using high-brightness LEDs and a few common components. Ignition pulses from the number 1 cylinder high-tension lead are used to trigger the circuit via a home-made inductive pickup. Transistors Q1 & Q2 buffer and amplify the pulses from the pickup, which then drive the inputs of three Schmitt-trigger…
Thrifty LED Protector using 2N3904-2N3906
| May 20, 2011 | Posted by admin under check circuit, led light |
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An LED is sure to fail if the current through it is too high. You will soon discover this after you have blown a few up. A simple resistor in series suffices to solve the problem and a better solution is almost inconceivable, because in this case you need only one additional cheap component. As…
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