Control ac motor using pwm

  • #1
variya sonali
3
0
I want to controll ac motor using pwm.sir told me for that you required volage controller and phase controller.if voltage is controlled by pwm so why i want to use this phase and voltage controller?
 

Answers and Replies

  • #2
variya sonali
3
0


Voltage can be control in pwm?
 
  • #3
dlgoff
Science Advisor
Gold Member
4,459
2,916


Welcome to Physics Forums.

There are Phase fired controllers.

Regulated_rectifier.gif


But Variable-frequency drives are generally used for a.c. motor speed control.

320px-VFD_System.png
 
  • #4
variya sonali
3
0
I want to controll the ac motor.if i can controll it with 8051microcontroller only?sir told me that in extra you required voltage controller and phase controller.why i require this two?
 

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