Hi all
In have tryed to sim some kinds of smps, forward, hald bridge.
However I think models UC3845 for example are not so well.
I need 15 volts 10 amps, 300 volts 100mA, 2 x 120 volts 250mA, 2 x 65 volts 15 amps.
Some people say make two smps, one for power 2 x 65 volts and one for the other voltages.
I did try the last, thus alone the tube voltages, however getting feedback working and such in ltspice did not work nice, I had a UB3875 who
did better.
And I think halfbridge is some to big for the voltages without the big 65 v x 2 15 amps one.
Helps is welcome also a transformer calculator I did have ExcellentIR dut is russian, and calculation did voltages get out of range.
View attachment smps-sim.zip
regards
In have tryed to sim some kinds of smps, forward, hald bridge.
However I think models UC3845 for example are not so well.
I need 15 volts 10 amps, 300 volts 100mA, 2 x 120 volts 250mA, 2 x 65 volts 15 amps.
Some people say make two smps, one for power 2 x 65 volts and one for the other voltages.
I did try the last, thus alone the tube voltages, however getting feedback working and such in ltspice did not work nice, I had a UB3875 who
did better.
And I think halfbridge is some to big for the voltages without the big 65 v x 2 15 amps one.
Helps is welcome also a transformer calculator I did have ExcellentIR dut is russian, and calculation did voltages get out of range.
View attachment smps-sim.zip
regards