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Old 04-08-2017, 02:18 AM
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BroMikey BroMikey is online now
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Join Date: Jan 2013
Posts: 5,972
I used the MJL4281a for over 100v switching projects because
the industrial handbook tells you that for the MJL21194 the
max usage for max operation on the extreme upper end is tops
80volts. And that is with as many snubbers or dampening
suppressor circuits you can tie down the spikes with as possible.

In our case we want no clamping or cancellation of peaks, we want
to harvest everything we can. This means if you use a 12v battery
system (And you will never hear this anywhere else, you find out the
hard way) and your circuit is set to 15-16v zapping the spikes are
300 volts in many cases. BYE BYE junctions, up in smoke in a short
plead as you may for assistance getting someone to chance giving
you a recommendation as to what will continue to fry out.

Trust me, I know, I burned up piles of these popcorn peanut parts.

As soon as you try to charge a 24v battery your whole circuit will
fry that day. Besides, to date no one has uses any fast or slow
transistor to go orbital OVER-UNITY.

Even with a very fast or ultra-fast mosfet no one is looping anything.

Point being you are making a battery charger that you want to be
a practical working device with some sort of flexibility without rebuilding
every other weekend.

I can charge a 36v bank and run the pulses up to over a 100 volts
with spikes way up there and she won't fry out.

the old days of the 2n3055 has been out classed. Semi's are all the
same price. I use a 1000v part sometimes. 1500v parts like a vertical
deflection circuit uses to ensure the backlash from a HV transformer
doesn't end the fun.

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