I blew this out a couple years ago when I inadvertently either shorted output to ground and interconnected inverter output to a running fueled engine generator.
http://forum.allaboutcircuits.com/threads/rx3152-8-pin-dip-what-is-it.88105/
I gave up on it then , but I have learned more since and might be able to repair it.
I found out the output board has 8 Mosfets, IRFP260N, and all 4 on one side are shorted.
I had before replaced the 16 input board Mosfets IRF3205 and some burnt 10 ohm gate resistors , but when it turned on several gate resistors burned and blew more mosfets and I gave up. But I think now they burnt again due to those shorted output mosfets.
So if the output of a power mosfet is shorted, will the gate resistors burn?
What caused these gate resistors to burn?
RX3152 is a quadrature gate driver for the input mosfets and the inverter has 4 of these, an 8 pin DIP form factor.
Would those RX3152's be damaged? They look ok, is there a way to ohm them out?
Pics
Daughter input board showing 2 black mosfet drivers RX3152
primary input board showing those 2 drivers and other ics
output board with 4 shorted mosfets lifted up
burnt up gate resistors
http://forum.allaboutcircuits.com/threads/rx3152-8-pin-dip-what-is-it.88105/
I gave up on it then , but I have learned more since and might be able to repair it.
I found out the output board has 8 Mosfets, IRFP260N, and all 4 on one side are shorted.
I had before replaced the 16 input board Mosfets IRF3205 and some burnt 10 ohm gate resistors , but when it turned on several gate resistors burned and blew more mosfets and I gave up. But I think now they burnt again due to those shorted output mosfets.
So if the output of a power mosfet is shorted, will the gate resistors burn?
What caused these gate resistors to burn?
RX3152 is a quadrature gate driver for the input mosfets and the inverter has 4 of these, an 8 pin DIP form factor.
Would those RX3152's be damaged? They look ok, is there a way to ohm them out?
Pics
Daughter input board showing 2 black mosfet drivers RX3152
primary input board showing those 2 drivers and other ics
output board with 4 shorted mosfets lifted up
burnt up gate resistors