Hi,
A newbie and my request might have already come up in this forum, anybody guiding me to the right circuit will be big help.
Though not an expert in electronics, I can follow guide steps to be followed.

I plan to make a circuit which should run on a 6v or 12v battery, This circuit will receive a 2v-5v voltage from a source for a small momentary duration of 1 or 2 sec only , this voltage should switch on a load which operates on 12V DC, 4 amps .
This 2v-5v input will not be continous it will be only momentary but it should switch on the load and the load will continue working.

On receipt of the next 2v-5v the load will switch off. i.e toggle on/off till there is a next input ,hence the circuit will remain in the last state till it receives the next signal.

The system is meant to be put for a remote use hence there should not be a physical switch on/off , it will be totally electronic/relay driven.

If I am not asking for too much a simple circuit will be greatly appreciated.
Thanks in advance.
Bijoy

 

You can use a relay driver for that.
The input (which i guess is a low power one), would drive the Baes/Gate of a BJT/MOS, and a second power supply wouls drive the relay's coil.
Moreover, you will need to use a latching relay, and not a regular one.

 

If anybody can post the schematic or circuit , it would be of great help.
Thanks