Tachometerless Motor Speed Control


Posted on Nov 6, 2012

This provides bidirectional speed regulation for small motors and requires no tachometer. The voltage th


Tachometerless Motor Speed Control
Click here to download the full size of the above Circuit.

at summing amplifier IC1A applies to the motor"s windings equals: where Vc is the command voltage and IM is the motor current. If you set the motor"s winding resistance and brush resistance (RM) equal to: the command voltage will be proportional to the motor winding"s counter emf. CI provides compensation. Set Rl"s value so that it equals 5 to 10% of RM"s value. You can generally find RM"s value in a motor"s spec sheet.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

beeper circuit
Schematic Diagram Car Amplifier for MP3
10 watt rf amplifier for 18mhz by
cable test
Battery charger using LM350
Flashflex Microcontroller Control Of Character Lcd Module
Lets to build many VU Meter circuits with LM3914
Reading and writing Atmega168 EEPROM Tutorial
Obstacle Avoiding Robot without microcontroller
Variable corner frequency tone circuit
Irons intelligent control circuit
Micro Wireless Monitor FM FM transmitter circuit two



Top