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Small power DC speed control board of DC machinery is an appliance that adopts silicon-controlled rectifier triggers circuit to realize adjusting voltage. It has advantages of cheap price, steady technology and high accuracy of adjusting speed, etc. it is extensive application on the mechanical devices that need adjusting speed such as papermaking, rubber, food, printing and metallurgy industry. Electric circuit has negative feedback of voltage, lead flow protection and soft start etc. to work stability.
Main features :
Use displacement to realize the stepless speed regulation
Use photoelectric eyes to realize distant controlled
Lead negative feed backing of electric voltage to balance speed
Cross electric current protection appliance makes performance more credibility
Take soft start appliance to eliminate current oversized when motor starts.