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Hi Dana just had a thought, would it not be easier to just take a 12 battery and use a series voltage dropping resistor to get 2.2 volts? Regards john
You would need a 200 Watt resistor. Quite possibly the worst possible solution.Hi Dana just had a thought, would it not be easier to just take a 12 battery and use a series voltage dropping resistor to get 2.2 volts? Regards john
Yeah I had come to the same conclusion re 12v battery. I have access to a 5 volt ps, going to try the buck regulator approach. Thanks again JohnDo you need
5V >> 2.5V @ 20A &
3.4 >> 1.7V @ 20A ?
(5 - 2.5) / 20A = .125 ohms P = I^2 x R = 400 x .125 = 50W Resistor
(3.4 - 1.7)/20A = .085 ohms P = I^2 x R = 400 x .085 = 34W Resistor
Buck regs that can do it (5 > 2.5) -
Regards, Dana.