It's been 20 years since I graduated with my associates degree in electronics... have not studied circuits since. Am trying to build a battery charger/tender for my motorcycles. I have a workbox full of 0.25 watt resistors, some diodes, some transistors... I have a transformer that's rated at 12Vdc 1000mA. Its no load voltage is around 15V.
I want to make it simple. The ideal setup would be something that I can leave plugged in continuously and only applies a voltage to the batteries when they drop below, say, 12V.
I have an idea in my head... if I can somehow use the 0.6V minimum drop across the base/emitter to turn on/off a transistor and allow the circuit to charge.
Any help appreciated
I want to make it simple. The ideal setup would be something that I can leave plugged in continuously and only applies a voltage to the batteries when they drop below, say, 12V.
I have an idea in my head... if I can somehow use the 0.6V minimum drop across the base/emitter to turn on/off a transistor and allow the circuit to charge.
Any help appreciated