Hello,
My son is creating a science fair project which needs to smoothly vary current through a solenoid coil from 0 to 10 amps, controlled by a Arduino.
Note we cant use pwm, as this would cause the coil field to pulse, so it needs to be able to smoothly vary the current.
How would one drive a 2n3055 from a digital to analog converter? Is there a better way? Is it possible to drive a MOSFET in its linear region to smoothly vary 10 amps?
Thanks!
My son is creating a science fair project which needs to smoothly vary current through a solenoid coil from 0 to 10 amps, controlled by a Arduino.
Note we cant use pwm, as this would cause the coil field to pulse, so it needs to be able to smoothly vary the current.
How would one drive a 2n3055 from a digital to analog converter? Is there a better way? Is it possible to drive a MOSFET in its linear region to smoothly vary 10 amps?
Thanks!