Hifonics Brx2400.1d stuck in protection.

[rhempz01]

Drive at the gate resistor.

 

[rhempz01]

If i attempt to place a mosfet into the circuit current .

 

[rhempz01]

I removed the rectifiers and installed just 4 mosfets. All banks work except for one that causes current and the fet gets red hot instantly.

 

[rhempz01]

Drive on the bank that heats the fet. All regulated voltage is good, +-15,12,&5. What would cause one bank to heat up?

 

[Perry Babin]

There is no reason for that bank to be heating up (due to a drive fault) with the waveform you posted.

 

[rhempz01]

Is 47r gate resistors ok?

 

[rhempz01]

Drive with a capacitor in curcuit.

 

[Perry Babin]

Are you asking if 47 ohm gate resistors are OK to use in the amp?

 

[rhempz01]

Yes, no matter what i try the amplifier will heat up the one side of fets.

 

[twilliar]

With no rectifiers installed isolating the power supply, could there be a transformer short?

I am thinking out loud, or short to ground. Not much can happen on these power supplies when it comes to failure points. The 47-ohm resistors are correct.