I recently acquired one of these motors:
https://www.bmisurplus.com/products/37425-johnson-hc-970-motor
There are a couple of different varieties, but the general principle seems to be that they're 12v/2a.
I'm driving it with a LM350 - a 3-amp adjustable regulator. The LM350 is powered by a 12v/2 amp power supply.
It seems to have pretty negligible torque. I can stop it with my finger, at which point it has trouble getting started again.
I can't use PWM for this application because it involves audio circuitry and the oscillation is too loud.
Can anyone help me understand how to get this motor to produce a robust response? Do I need to build an H-Bridge? Can anyone suggestion something for this particular application?
https://www.bmisurplus.com/products/37425-johnson-hc-970-motor
There are a couple of different varieties, but the general principle seems to be that they're 12v/2a.
I'm driving it with a LM350 - a 3-amp adjustable regulator. The LM350 is powered by a 12v/2 amp power supply.
It seems to have pretty negligible torque. I can stop it with my finger, at which point it has trouble getting started again.
I can't use PWM for this application because it involves audio circuitry and the oscillation is too loud.
Can anyone help me understand how to get this motor to produce a robust response? Do I need to build an H-Bridge? Can anyone suggestion something for this particular application?