L
[email protected]
- Jan 1, 1970
- 0
Hi guys,
I asked this question a long time ago, and I only got back to finishing
the project recently. My problem was that I needed to create a circuit
that turned another on or off, depending on the voltage state of a
given wire, 12/6v.
So, I came up with the following,
12V
+
o----.
| |
Relay _|_ - 1N4001
Coil |_/_| ^
| |
o----'
___ |/
JOE ---|<--|___|--+--| TIP31
8.2V 390R | |>
Zener .-. |
| | |
10K| | |
'-' |
| |
o----'
|
===
GND
Which works absolutely perfect (ish). It works fine, but when I
installed this into my car, the 12v/6v wire that is meant to trigger
the circuit has 0A running through it - it is more a clock pulse thing
I think. So, how can I make a circuit that will trigger the above
circuit given two states,
12v Circuit Off
6v Circuit On
Given a wire that can be in two states, 12v 0A and 6v 0A. I'm thinking
I might have to use a Zener to reduce the voltages to 6v\0v and then
some kind of IC like a 555 which the clock input to switch a J-K, or
something along those lines.
Help is very appriciated and the simpler the better!
Thanks guys,
Ben
I asked this question a long time ago, and I only got back to finishing
the project recently. My problem was that I needed to create a circuit
that turned another on or off, depending on the voltage state of a
given wire, 12/6v.
So, I came up with the following,
12V
+
o----.
| |
Relay _|_ - 1N4001
Coil |_/_| ^
| |
o----'
___ |/
JOE ---|<--|___|--+--| TIP31
8.2V 390R | |>
Zener .-. |
| | |
10K| | |
'-' |
| |
o----'
|
===
GND
Which works absolutely perfect (ish). It works fine, but when I
installed this into my car, the 12v/6v wire that is meant to trigger
the circuit has 0A running through it - it is more a clock pulse thing
I think. So, how can I make a circuit that will trigger the above
circuit given two states,
12v Circuit Off
6v Circuit On
Given a wire that can be in two states, 12v 0A and 6v 0A. I'm thinking
I might have to use a Zener to reduce the voltages to 6v\0v and then
some kind of IC like a 555 which the clock input to switch a J-K, or
something along those lines.
Help is very appriciated and the simpler the better!
Thanks guys,
Ben