I'm trying to build a circuit that can flip polarity at a set rate—like turning one LED on while keeping the other off. I plan to use diodes to control which LED turns on and which one turns off. Any tips or advice would be appreciated! Thanks in advance!
3 Answers
Are you thinking about using an inverter for this? Also, just curious, what kind of power supply do you plan to use?
Sounds like you’re after a blinker circuit, right? Just to clarify, instead of switching LEDs on and off, you want them to switch polarity? That’s a cool idea! Let’s see if we can help you out with it.
Exactly! That’s what I mean, so any tips on how to get started with that?
I actually built something similar back when bicolor LEDs were the new thing! I used a 555 timer to control a flip-flop IC like the 7476. I connected a bicolor LED with a resistor to the Q and not-Q outputs of the flip flop. It worked great! I even layered in another bicolor LED with reversed polarity to create a color-changing effect. Super fun project!
I’ll be using a 20V DC supply for the circuit!