Reverse Engineering Motor Controllers roboteq , Vantec , 4QD

[ElectronS]

Hi
i am an electronics students and i am doing a project on brushed motor controller ..

i have experimented with some circiuts some with sucess , some with flames unpleasent endings

anyway i am intresed in making a 60A H bridge and most important part is a the protection agianst overvoltage , overcurrent , spikes , sudden braking ......

I am not expecting magical answer and solutions . i just would appreaciate any help , An advise, a schematic , or even you could just post a good quality picture from your motor controller no matter what brand or motor type it is for (except kelly controllers, you know chinease products !! ) , this can help me read the IC names and see the protection (diode , snubber , TVS ..... ) and try to reverse engineer it ( hopefully )
i donot have the money to buy all controllers in the market and open them just to learn . the only information i have now is from OSMC project , It is great but would like to see more designs espically new ones .
thanks in advance guys

 

[amberwolf]

You might want to look at the application notes that many companies (TI, OnSemi (Motorola), STMicro, and many others) post on their websites, for their brushed and brushless motor control circuits, power MOSFETs, etc. Among the various appnotes there is a lot of information.

There is also a great deal of very specific information about the 4QD controllers on their own website. They even have a "subcription" section that contains pretty much all the details of various versions of the 2QD controller and why various design decisions and revisions were made. I highly recommend it for learning brushed controllers.

 

[ElectronS]

Thanks for the reply man

i have checked those websites and got some of the information i need ...

please if anyone (even a newbie) else could also help , any one with a motor controller or wheelchair just post clear pic of whats inside (mosfet driver, diodes, Mosfets snubber ....)
i want to have more options and different designs are great at inriching or ideas ..

thanks in advance.

 

[emiyata]

Hi
i am an electronics students and i am doing a project on brushed motor controller ..

i have experimented with some circiuts some with sucess , some with flames unpleasent endings

anyway i am intresed in making a 60A H bridge and most important part is a the protection agianst overvoltage , overcurrent , spikes , sudden braking ......

I am not expecting magical answer and solutions . i just would appreaciate any help , An advise, a schematic , or even you could just post a good quality picture from your motor controller no matter what brand or motor type it is for (except kelly controllers, you know chinease products !! ) , this can help me read the IC names and see the protection (diode , snubber , TVS ..... ) and try to reverse engineer it ( hopefully )
i donot have the money to buy all controllers in the market and open them just to learn . the only information i have now is from OSMC project , It is great but would like to see more designs espically new ones .
thanks in advance guys

http://www.avdweb.nl/solar-bike/electronics/ku63-motor-controller.html