Hi,
I am a newbie in electronics. I have a ground switched lamp. What I want is to have +12V output when the lamp is switched on, and 0V/GND when it is switched off (basically a ground switch to a positive switch).
What I have found on the internet is that I should use a relay for this purpose.
Now I made a small sketch of a simple circuit. What is in ... lines is the already existing lamp + the ground switch. Is it possible to attach a relay as shown, or do I need diode, snubber circuit, anything else? Note that DC12V is used everywhere, no AC in the circuit.
Can I use a solid state relay instead of a mechanical one? I want it to consume as small power as possible, and only consume power when the light is on. This is because 99.5% of the time the lamp is off.
If I used solid state relay instead to reduce power consumption, would I have to change something, add anything else? Which legs of SSR correspond to 30, 85, 86 and 87a legs of a mechanical relay? I know the control circuit usually has + and - on it, but does the direction matter on the load circuit? I mean if I connect fused +12V to leg1 or leg2 of the load circuit?
I am a newbie in electronics. I have a ground switched lamp. What I want is to have +12V output when the lamp is switched on, and 0V/GND when it is switched off (basically a ground switch to a positive switch).
What I have found on the internet is that I should use a relay for this purpose.
Now I made a small sketch of a simple circuit. What is in ... lines is the already existing lamp + the ground switch. Is it possible to attach a relay as shown, or do I need diode, snubber circuit, anything else? Note that DC12V is used everywhere, no AC in the circuit.
Can I use a solid state relay instead of a mechanical one? I want it to consume as small power as possible, and only consume power when the light is on. This is because 99.5% of the time the lamp is off.
If I used solid state relay instead to reduce power consumption, would I have to change something, add anything else? Which legs of SSR correspond to 30, 85, 86 and 87a legs of a mechanical relay? I know the control circuit usually has + and - on it, but does the direction matter on the load circuit? I mean if I connect fused +12V to leg1 or leg2 of the load circuit?