I like the BAV and BAT series because you can get two diodes in one SOT23, any configuration. Contract assemblers can't mess up the placement and it's cheaper, especially since they are now produced by more companies than just Philips and Siemens/Infineon. Even before that you didn't have to ask much if it was on their jelly bean list. In most parts of the world they were as ubiquitous as rice cakes and apples at the grocery.
Guess you meant the BAS21. Yes, a nice low cost diode for higher voltages and pretty zippy, too.
That's why I'm using the UC3525 anyway. Pulse width ramps form zero to full. I have some other questions I have in mind about Bmax - but I'll leave them to later.
Quite. I was targeting Bmax =250mT
Yeah - I'm seeing about 400mA pk. IIRC. Nice triangle waveform at my current monitor point ( apart from some shit when the devices switch ).
You're right. It is indeed. Runs cool for core loss.
8+8 actually for the main output(s). I.e. +/- 80V DC.
Uhuh. That is when I actually get past driving the primary.
It'll be...
1 layer primary.
1 layer S1 + S2.
1 layer primary
1 layer S3 + S4.
With some lower voltage low power aux secs wound in there somewhere too.
Using litz wire for the main windings ( approx 1.6mm^2 - I think that's about 18 AWG ) - probably around 150 strands - type 1 construction. Plan to use 'safety litz' - the triple insulated stuff to avoid margins. Pack in Germany and New England Wire make it. Also made in their Chinese factories where the product will be built.
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