I don't understand. When you listed the 'p' version have you been too lazy to type out PBF?
Now i understand! PBF= Pb free?
That doesn't answer my question.
Yes i mean IRF540PBF, sorry
Now with IRF540 seems to be ok. Oscillator problem remain but i think to solve with change.
Hi, i have changed pwm generator but i have the same problem
What is the DC voltage on pins 1 and 2 of the PS driver board.
106vpp, is strange, with original sg3525 is better, with st version this problem is bigger..
See attached.
I have 0,0175V, now i have assembled this ampli with all frames, i don't have the istability problem... this is strange
Are you saying that both terminals 1 AND 2 have precisely the same voltage and it's less than 0.02v?
Yes, i have misured between 1 and 2 pins. With black probe to gnd i have 2.8V and 2.7V
The question was:
What is the DC voltage on pins 1 and 2 of the PS driver board.
Not across pins 1 and 2.
Looking at the 2 terminals with a scope, is either noisy?
This is the situation.
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