LoTek
New Member
Hello, I'm new to the forum. I've been poking around and there seems to be a lot of great info here!
Maybe you guys can help me out with a project. I am attempting to construct a two, three, or four-step sequential circuit without the use of IC's (555, CD4017B, etc.). Maybe something using SCR's? My goal is a cascadable time delay circuit for automotive turn signals. I did a search and found some good info but not exactly what I am looking for.
Here is how I envision it working:
All illuminated lamps should stay on until voltage is removed from the circuit. When voltage is removed lamps should go off immediately.
Example of lamp to be used: 1157 automotive bulb.
I want to keep the circuit a simple as possible (without the real estate required for 555 timers and decade counters).
Any help will be greatly appreciated.
Maybe you guys can help me out with a project. I am attempting to construct a two, three, or four-step sequential circuit without the use of IC's (555, CD4017B, etc.). Maybe something using SCR's? My goal is a cascadable time delay circuit for automotive turn signals. I did a search and found some good info but not exactly what I am looking for.
Here is how I envision it working:
- Application of +13.6VDC illuminates 1st lamp
- Delay
- SCR 1 triggers, illuminating 2nd lamp
- Delay
- SCR 2 triggers, illuminating the 3rd lamp
- Etc.
All illuminated lamps should stay on until voltage is removed from the circuit. When voltage is removed lamps should go off immediately.
Example of lamp to be used: 1157 automotive bulb.
I want to keep the circuit a simple as possible (without the real estate required for 555 timers and decade counters).
Any help will be greatly appreciated.