Inverter problems Please help

Thread Starter

James Harris 1

Joined Mar 10, 2017
39
You are getting better. :)
1 has a shorted BC junctions and an open BE junction.

Is this the transistor that has the diode connected ?
I'm not sure because I took them all out the pc so I could get a good connection. I've ordered a new one should be here tomorrow.
 

R!f@@

Joined Apr 2, 2009
10,004
I believe by the time I come home, you will have the components soldered and fiddling with it...EH !:D

Just keep in mind the tips I gave and about using 4 MOSFET's for testing. This way should something were to occur, you will not blow all the MOSFET's :rolleyes:

Double check the low value resistors that are around the MOSFET's and the drivers and do a diode test again to be sure.

Test and test again. You will get better at it.

Till then TTFN.
 

Thread Starter

James Harris 1

Joined Mar 10, 2017
39
I believe by the time I come home, you will have the components soldered and fiddling with it...EH !:D

Just keep in mind the tips I gave and about using 4 MOSFET's for testing. This way should something were to occur, you will not blow all the MOSFET's :rolleyes:

Double check the low value resistors that are around the MOSFET's and the drivers and do a diode test again to be sure.

Test and test again. You will get better at it.

Till then TTFN.
Will do thank you so much for all the help you have been giving me you have been a real life saver.
 

Thread Starter

James Harris 1

Joined Mar 10, 2017
39
I believe by the time I come home, you will have the components soldered and fiddling with it...EH !:D

Just keep in mind the tips I gave and about using 4 MOSFET's for testing. This way should something were to occur, you will not blow all the MOSFET's :rolleyes:

Double check the low value resistors that are around the MOSFET's and the drivers and do a diode test again to be sure.

Test and test again. You will get better at it.

Till then TTFN.
Thing are looking good I put the inverter back bridge by bridge testing voltage after each one and it's back together now and I'm getting 215v at output the only thing is the LCD screen now says 0v and a ! Is flashing which I'm not fussed about as long as it's safe any ideas.
Once again thank you so much for your help you are a legend
 
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