Hi all,
I'm trying to use a common-cathode bi-color LED with a SCR. I need to have the red die lit at all times, and the green die light when the SCR is triggered. Here's a circuit drawing. This configuration keeps the red die lit, but the green die will not light when the SCR is triggered. If the red die is off, I can trigger the SCR to light the green die but if I connect the wire for the red die, the green turns off. At no time can I get both dies to light when the SCR is in the circuit, but I can light both by attaching both LED anodes to V+. All advice is appreciated. Thanks!
Gary
I'm trying to use a common-cathode bi-color LED with a SCR. I need to have the red die lit at all times, and the green die light when the SCR is triggered. Here's a circuit drawing. This configuration keeps the red die lit, but the green die will not light when the SCR is triggered. If the red die is off, I can trigger the SCR to light the green die but if I connect the wire for the red die, the green turns off. At no time can I get both dies to light when the SCR is in the circuit, but I can light both by attaching both LED anodes to V+. All advice is appreciated. Thanks!
Gary
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