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Old 27th Nov 2017, 8:15 pm   #7
dseymo1
Retired Dormant Member
 
Join Date: Dec 2007
Location: Shropshire, UK.
Posts: 3,051
Default Re: Mini-drill; Speed Controller Problem

That was my first thought - perhaps this particular motor draws sufficient current off-load to drive the control circuit into 'flat out' mode. Maybe a few measurements and calculations would shed some light.
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