H-bridge problem with MOSFET

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asadmosab

Joined May 20, 2016
2
This is my first project with MOSFET. I have built this design but the n-channel MOSFET getting hot. Is there mistakes I have made?

I have no problems wit p-channel it measured -12V VGS and 200mv VDS, but with n-channel I have measured VGS about 11V and VDS about 4V --- the problem here is that in Multisim simulation VDS should be around 200mV, so from where this 4V come?
I want to use this circuit with PWM.

Thank you for any answer.
 

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ScottWang

Joined Aug 23, 2012
7,398
How high the frequency you like to run with the pwm?
Try to change all the 1K resistors to 10K.
All 470Ω change to 100Ω or shorted.
What is the IC number of inverter?
 

LEhenson

Joined Mar 5, 2011
3
Use a L298 or similar "H Bridge" = KISS (Keep It Simple Stupid)
Mod edit: offensive language removed.
 
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