Nope.Would using only the center conductor of a coax and leaving the braids unconnected provide any shielding?
Is that a 2kHz pulse train or sinewave?The frequencies Im using are below 2khz, the coax would be carrying gatedriver output to the module gate.
You don't need coax for that ... ordinary shielded cable should do the trick, especially at such low frequecies. Also, noise originating from the circuit's power supply will be far more influential than external EMI at those distances.Pulsetrain the cable is ~12cm length. Only grounding the braid gives shielding?
Its probably better to isolate gate driver with fiber optic and place it next to the module than using a coax.
You could do that, but it would be overkill. Is the cable directly connected to the IGBT's gate? Or is it connected to a driver, and then to the transistor's gate? In short, what voltage is being used on the cable?Such as using all the wires for one connection from a RJ - STP cable?
by Duane Benson
by Duane Benson
by Jake Hertz