building of a puls width modulation buck chopper with a power factor capacitor

[ndifon kenneth]

hello ,i want to build a circuit that control the speed of a dc motor using Pulse width modulation with a buck chopper structure. please i need some one to suggest me the circuit diagram. thanks

 

[ndifon kenneth]

hello ,i want to build a circuit that control the speed of a dc motor using Pulse width modulation with a buck chopper structure. please i need some one to suggest me the circuit diagram. thanks

 

[Ian Rogers]

Please give other members time to reply.....

 

[ronsimpson]

What is you power source? 220VAC 60 hz?

what is the DC motor voltage and current?

Please explain you understanding of "power factor capacitor".