I´m starting a project that consists of turning a 12V, 50A DC motor on and off, and i´m having trouble finding a circuit or transistor that can achieve this with the low voltage output of the digital pins.
Thanks in advance for any help
Edit: Forgot to add that i need fast switching
Edit 2: I want to be able to turn the motor on and off fast. The project is like a trigger, turning the motor on when its pressed and off when its not, so i wish it to turn the motor as quick as i press the trigger.
LucasWithK:
I´m starting a project that consists of turning a 12V, 50A DC motor on and off, and i´m having trouble finding a circuit or transistor that can achieve this with the low voltage output of the digital pins.
Thanks in advance for any help
Edit: Forgot to add that i need fast switching
Do another edit and state what "fast switching" means to you. And is that fast on or fast off or both?
Its much much better to provide a link to the data for the motor than try to explain it yourself in words,
you'll inevitably miss something vital (like stall current rating).
High power motors like this need hefty controllers, it won't be just a transistor. Protection circuitry is
very important at these power levels as momentary fault conditions can easily vaporize a power MOSFET
when the supply can provide kW power levels.
Paul_KD7HB:
Do another edit and state what "fast switching" means to you. And is that fast on or fast off or both?
Paul
What you added is not very fast. Just normal off and on. Of course, you switch contacts will bounce, so you need to take care of that.
Just pushing your switch will not make the motor begin at speed. It will have to accelerate. Same applies to powering off. Does not stop the motor from turning.