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profinet e mpi
Could anyone please refer to me some good reading material on profibus, industrial ethernet and mpi protocols and usage with regard to plcs
inverter mosfet
Thanx for the reply
The diode helped
It's better now
But still, it tends to get a little hot
I was using an optocoupler, connected to BS170 (n channel mosfet) connected to buk438 (power mosfet)
Though the heating has reduced significantly, the voltages haven't dropped to...
inverter design
I'm designing a mosfet based single phase inverter using h-bridge
I'm using PIC controller to control the mosfets
The problem is that even for low duty cycle pulses, the mosfet keeps conducting for a much longer period than it should and at high frequencies (close to 40Hz)...
H-Bridge
I wanted to know a little about h-bridge... lets say i made one using 4 npn transistors... the switching voltage at the base of each transistor is 5 V and 50 volts are at the collectors of the upper transistors
Now, as the upper two are in emitter follower configurations, shouldnt a...
Hi
I'm designing a 3-phase inverter using PIC controller
I'm currently using Mosfet drivers but have no qualms with using IGBTs
Let's say i'm using IGBT's and dual supplies (positive and negative) as shown on the 5th page of the attached pdf file
Now, if the gate triggering circuit varies...
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