i want to do my projects about designing a dc motor control.i plan to use PWM with half bridge mosfet using PIC..
but the probs is,i dunno where to start, and i hav only few knowledge about that.
can someone help me?tell me in details how its works..my DC motor specs is 24v dc,rated current is 10amps,rated speed 2700rpm and is a 180W..

i wanna use 24v battery..

Pic can only accepts 5v,so where i need to suppy my 24v battery??
plzz help me..

 

Use 5V for the PIC (an LM7805, LM309, or similar would work), and use that to control a transistor/MOSFET that actually drives the motor.

 

so that 24v is goes to the mosfets?
what type of PIC can is use..that is too many..i dunno which one is better..

 

A PIC with just one PWM output is enough for your project. Also, it has to have an ADC as to read a pot and adjust the speed of the motor.