ron roberts
New Member
Hi everyone can anyone help.
I have a small 12 volt bulb that I need to run from a 12 lead-acid battery but when the battery goes under 10 volt I would like some kind of circuitry that will switch a changeover relay. This relay will need to disconnect the bulb and switch my solar panel charger to recharge the battery. Now when the battery is charged fully I need the circuitry to switch back to running the bulb and disconnect the solar panel.
So in short I need a 12 volt battery monitor that will switch a relay off when the voltage goes below 10 volt and back on again when the voltage risers above 12 volts.
i know i need a voltage comparator and a current comparator. They set and reset a flip-flop circuit.
The outputs of the flip-flop drive Mosfets that connect the solar panel and disconnect the light bulb.
but i need a diagram only please
can anyone help
I have a small 12 volt bulb that I need to run from a 12 lead-acid battery but when the battery goes under 10 volt I would like some kind of circuitry that will switch a changeover relay. This relay will need to disconnect the bulb and switch my solar panel charger to recharge the battery. Now when the battery is charged fully I need the circuitry to switch back to running the bulb and disconnect the solar panel.
So in short I need a 12 volt battery monitor that will switch a relay off when the voltage goes below 10 volt and back on again when the voltage risers above 12 volts.
i know i need a voltage comparator and a current comparator. They set and reset a flip-flop circuit.
The outputs of the flip-flop drive Mosfets that connect the solar panel and disconnect the light bulb.
but i need a diagram only please
can anyone help
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