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dc motor speed control system

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vead

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hi

i want to design circuit that control the speed of motor
i don't know where to start
anyone please suggest please what thing i need firstly to develop control system
i think i need dc motor , power supply ........
can i use plc or pid controller

please anyone suggest me basic step to design control system
 

Dear vead
Hi
It is a very sweet and easy project ! at first try to generate a variable duty cycle square wave . e.g with 555 .
if you can do it , tell me , i'll illustrate you another step .
Best Wishes
Goldsmith
 

hi goldsmith

yes i can do it. do you mean that i can use 555 as controller circuit
 

Hi again
Yes my mean was exactly that .
and after that , you'll need a simple totem pole circuit to drive a mosfet , are you familiar with totem pole ?
Best Wishes
Goldsmith
 

you'll need a simple totem pole circuit to drive a mosfet , are you familiar with totem pole ?
i don't know about pole circuit could you tell me please what is use of this circuit
 

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