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damon7142
modified 9 years ago

New Push Button Transistor Latch works great

7
2
327
08:57:30
Depress or hold switch & led stays on. Depress or hold switch again & led stays off. My new Design. 1. RC circuit is a logic charge feedback input from the output, it changes to logic 0v. 2. Press or hold switch and top INV input goes 0v, top INV Led goes on, bottom INV goes off that holds top INV on. RC charges to logic 1 when switch is released. 3. Press or hold switch again, and top INV and Led goes off, bottom INV goes on that holds top INV off. RC charges to logic 0v when switch is released. Note : RC can be 10k-100k, cap can be 10-100uf. 5k can be 4k-10k. Top capacitor can be eliminated. Enjoy my new design now, thanks for viewing.
published 9 years ago
Phenious
8 years ago
Can more leds be added to this circuit and have the button switch between them?
damon7142
8 years ago
Sorry I been away so long, yes u can use more Leds but brightness of all will drop as current is divided in all

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