How do you regulate current without regulating Voltage?
PWM???
As i understand it, you vary the output voltage by varying the PWM cycle.
12V source @ 50% PWM = 6V
So it is not possible to vary only the current.... U=I*R
But then i am thinking - the power-supplys from school, they have 2 buttons, one fore U and one for I..... how does that work?
PWM???
As i understand it, you vary the output voltage by varying the PWM cycle.
12V source @ 50% PWM = 6V
So it is not possible to vary only the current.... U=I*R
But then i am thinking - the power-supplys from school, they have 2 buttons, one fore U and one for I..... how does that work?