Respected members

Thanks for your kind help in making the motor.

Now i want to test it with a bldc driver. I have a circuit done, but not working. The circuit is given below. However in this circuit the vcc pin (16) and ground pin( is not used.  

Do u know any good circuits for brushless ESC?

Please note that voltage is not the only thing. You have to check the current value too. And the ON-state resistance also for those transistor.
So, theb circuit may rotate any tiny Motor whose no-load current is  < 0.15 A, and of course, with no-load condition.
So, you need MOS or IGBT or even Power Transistor (buffered with Darlington / Zikli pair) bridge as switch.
Just search the forum and you will get Application note.
http://www.rcindia.org/electric-power/diy-brushed-esc/msg97943/#msg97943

then is that schematic is OK?....just wanna change the components only....or wanna change the whole circuit???

you have to match full throttle generated frequency with voltage * KV considering the no of pole of the motor.

Just read any AC Machine chapter for referance for 3 phase Synchronous motor.

Thanks

pradeep,
thic cct does'nt look ok/ complete.
Generally, in sensorless brushless motors, the Back emf generated  from the coil is given to an  A to D (analog to Digital converter) and is used as feed back to synchronise the switching of the three pase of the motor.
This portion is missing in the given cct. So i wonder if it will work for u.
Cheap brushless motor controllers are available for as low as rs 500.00 and may be a good option.
ashta

Quote from: pradeep_K_B on May 21, 2012, 11:27:06 PM
then is that schematic is OK?....just wanna change the components only....or wanna change the whole circuit???

Thanks kalyan ji, you are absolutely right, this wont take a nice motor.

Here is my video

Is tip31c = 2n3055

I am having a couple of 3055.

video: