BLDC motor driver circuit

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gauravkothari23

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Hi all,
I want to drive 24V 2A BLDC motor using Nuvoton MS51FB9AE 8051 controller.
But i am bit confused with the circuit diagram. After going through some of the articles provided online some circuit shows N channel mosfet on High Side and same N Channel mosfet on Low side also. and some shows P channel mosfet on High side and N Channel mosfet on Low Side.
Can anyone please suggest me what type of mosfets can be used. and if both type can be used what would be the driving difference between this two circuits.
 

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In practical terms a low RdsOn Nch can be made slightly lower than Pch for the same die size and cost so is preferred. A boost cap and diode relies on the low side PWM and top side for direction control.

Complementary P/N also works.

The critical parameters should be the RdsOn*C and load regulation effects. They tend to be tradeoffs but some are better than others and varies widely with material SiO2, GaN, S
 

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