R rcrboy New Member Jan 8, 2021 #1 Does anyone know what the black box is on this 110v dc motor pwm controller? Attachments 20210103_125304.jpg 842.9 KB · Views: 241
rjenkinsgb Well-Known Member Most Helpful Member Jan 8, 2021 #2 It is an enclosed or encapsulated circuit board, from the diagram you drew out in a previous post. It has the small-signal or low voltage part of the speed control system.
It is an enclosed or encapsulated circuit board, from the diagram you drew out in a previous post. It has the small-signal or low voltage part of the speed control system.
R rcrboy New Member Jan 9, 2021 #3 Would that be a substitute 555ic? Does that send out a pwm signal like the 555? Thanks.
rjenkinsgb Well-Known Member Most Helpful Member Jan 9, 2021 #4 It will be rather more sophisticated than a 555, with speed and current control and feedback. It could be a moderately complex analog circuit, or a microcontroller based system.
It will be rather more sophisticated than a 555, with speed and current control and feedback. It could be a moderately complex analog circuit, or a microcontroller based system.