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Newbie - Incremental Increase in RPM on DC motor?

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lprevs

New Member
Hi everyone,
I was wondering how I could incrementally increase the voltage going to a DC motor without an arduino. The motor is 6 volts. Is this possible? And what exactly is a soft start motor?

Thanks,
lprevs
 

MaxHeadRoom78

Well-Known Member
Usually variable motor control is done now by way of a PWM control.
Soft start usually refers to power being applied with gradual increase from zero, rather than full voltage.
Max.
 

dknguyen

Well-Known Member
Most Helpful Member
Well if the battery is 6V you can only ever run it slower than that. You could do it with a 555 timer wired to PWM driving a power MOSFET transistor which drives the motor in turn. Is there a reason you won't accept an arduino?
 

dr pepper

Well-Known Member
Most Helpful Member
A 555 and a 4017 might do the trick, look up 4000 logic ic's.
 
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