HI,
I need to build a 2 H-bridge driver with 4 N-MOSFET to drive a PMDC motor.
The motor have rated voltage 24V and rated current 8.5A.
So, I choose the IRFP 260 N-MOSFET because it can sustain the current untill 45A in order to protect the MOSFET from over current.
But the problems I face now are
1) I don't know how to control or turn on the High side of the H-bridge. The
battery I use is 24V.
2) What is the protection circuit to protect the H-bridge, the motor and the
the controller which produce the PWM to control the motor speed?
As i know, we can use an optocoupler, but how to use it?
3) What others protection do I have to consider in order to protect my
controller and the motor?
Can someone post a schematic circuit of the H-Bridge driver which is suitable for my project?
Thanks.
I need to build a 2 H-bridge driver with 4 N-MOSFET to drive a PMDC motor.
The motor have rated voltage 24V and rated current 8.5A.
So, I choose the IRFP 260 N-MOSFET because it can sustain the current untill 45A in order to protect the MOSFET from over current.
But the problems I face now are
1) I don't know how to control or turn on the High side of the H-bridge. The
battery I use is 24V.
2) What is the protection circuit to protect the H-bridge, the motor and the
the controller which produce the PWM to control the motor speed?
As i know, we can use an optocoupler, but how to use it?
3) What others protection do I have to consider in order to protect my
controller and the motor?
Can someone post a schematic circuit of the H-Bridge driver which is suitable for my project?
Thanks.