Hi,

I have built a pulse wave circuit (pulses of equal duration) using a quad nand gate. I can set the duration and pulse length and at the moment I have five flashes before the LED output remains on.

I would prefer to have variable pulse widths whose frequency starts slowly and then steadily increases before the LED remains on. e.g. pulllllllse, pulllse, pulse, on ......

Any help is much appreciated.

 

Hello,

We already closed a thread with the same question for being automotive:
Increasing frequency pulse generator (for motorcycle brake light)

If you post the same again, a ban will follow.

Bertus