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Control 48V 42A DC motor using PIC micro

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ho907

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Dear all,
I am trying to make a 48V 42A DC motor controller using PIC16F877A microcontroller. I know how to generate PWM using PIC micro. I would like to know ask you guys, what kind of electronics do I have to use to make the hardware. As I know PIC alone is not able to handle such high current. So is it ever possible to control this kind of DC motor using PIC16F877A microcontroller.

Thanks all.
 

is it really 42A ?
yes you can control it with H-Bridge,
It will be a costly H-bridge if you want to buy,
try build yourself, if you can !
 

varunme said:
is it really 42A ?
yes you can control it with H-Bridge,
It will be a costly H-bridge if you want to buy,
try build yourself, if you can !
Click to expand...

Hi,
Thank you for your reply. Actually on the motor data sheet it says starting current of the motor is 41A so it means it needs 41A to start. Although somewhere on the data sheet it says operating current is 3A. So I'm a bit confused. Do I need to choose a h bridge that can handle 41A? MOSFET or igbt?
Thanks in advance.
 

If the motor is to run in a single direction then you don't need a h-bridge only a single fet. Assuming you can supply the 41A current from the power supply in the first place 41A capable mosfets are readily available to either construct a single directional drive or a h-bridge.
 

pwdixon said:
If the motor is to run in a single direction then you don't need a h-bridge only a single fet. Assuming you can supply the 41A current from the power supply in the first place 41A capable mosfets are readily available to either construct a single directional drive or a h-bridge.
Click to expand...
so you are saying I can control that kind of motor using p16f877a pic micro providing that I use right kind of FET that can handle 41A.
thanks.
 

ho907 said:
so you are saying I can control that kind of motor using p16f877a pic micro providing that I use right kind of FET that can handle 41A.
thanks.
Click to expand...

Yes with a suitable transistor
 

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