Motor Controller
Posted June 25, 2009
By admin
Motor Controller
Can I use a power MOSFET to make a very low-current circuit act as a DC motor controller of about 40A?
The low-current circuit is in the mA and the DC motor circuit is 30A to 40A.
If so, what fairly-specific types of power MOSFETS could I use?
I'm sorry that my question is so vague; I'm still trying to get a good grasp on circuitry. 
To implement such a control circuit you should use the Hexfets,
paralleled and with a very good heat sink. Please note that
these fets are enhancement fets and their control is not easy.
You should check on the internet Hexfet and the application notes.
For buying you may check on Radio Shack.
Please note that tis in a high power circuit and if you do no have a good experience i power semiconductor circuit you may go in serious trouble.
Good luck.
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DC Brushless Motor Controller
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