Hi Swag, I knew you'd figure it out !! What about
the 10K resistors at the bases of the transistors, and the 1K resistors at the
collectors. Keep those with the Transistors when I move
them ,or get rid of them ?
If the 10K resistors are not included the transistors
will blow-off, without the 1K collector resistors the mosfets will not
work....so all of them are required...we are just interested in changing
the waveform, which is solely connected with the oscillator section.
output stage which is responsible only for boosting the signals into
the transformer windings, remains the same, just as it was with the
square wave design.
Junction ,should I get rid of R4,R5,R6,R7 and just use the two 10K resistors
,with the transistors.?
letter and it still does not work. This time when I turned the Inverter ON
it made a loud high pitched noise and blow one of the Mosfets. Sorry for the bad
a PCB. The Square wave generator and PWM circuit are on two separate
PCB's. I sure hope we can get this thing working.
Quite unfortunate that it's not working, you may directly
connect the diode junctions through the 10K resistors of the square
wave design, so R4,5,6,7 are not required......are you sure you are
using exactly the same output stage set-up that was previously working
with the square wave design? I think you did some changes in the
secondary winding..... if that is true then that may be root cause of
all the trouble.