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Hmm. That's strange. | by Longfist | 2014-12-31 07:35:09 |
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Okay, we're in CRUNCH TIME now! | by Longfist | 2015-01-08 19:48:48 |
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I just dove the web for things that do almost what | by wwill | 2015-01-08 20:45:09 |
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If it weren't for lack of a hole in the middle, | by LongFist | 2015-01-09 04:59:35 |
| 2N3055s are 15A power transistors. What if we |
by LongFist |
2015-01-09 06:56:23 |
decided to use a 30A power transistor instead? Would we gain anything by *not* paralleling a stack of 2N3055's? I was thinking of maybe employing some 2N5302's or something - but my familiarity with this sort of circuit is a limiting factor. The EV will probably only get 15 or so MPH (it's actually a trike being propelled by *ONE* 3-phase BLDC motor with a small high-schooler piloting it: I don't expect it to roar down the track with any authenticity. Creeping down the track may be all they get at this point.)
And are these 2N3055's (or 2N5302's) set in parallel to each other to allow for greater current (like we do with batteries?) or does cascading them somehow grant the later transistors the ability to handle more power? I am confuzzled, sure, but I'll figure this out. It interests me, so I'm not going to stop just because I don't quite understand it yet...
Just curious, feeling my way around this circuit design.
A Zener diode *will* function perfectly as a reference voltage as long as we don't reach through it for current; most are limited to 1-3 A before they fail. Getting my head around this "side" of the circuit as well - they should marry up fairly easily as soon as I understand the dynamics of each...
Yeah, I'm (probably) making this a *LOT* more complicated than it needs to be, but as a neophyte in this particular arena I'm well aware of that possibility. I'll simplify things better just as soon as I understand how/where they work. Until then my ignorance keeps me from "getting it"... |
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[ Reply ] |
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You WANT the parallel! | by ideur | 2015-01-10 10:12:37 |
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A hint: | by ideur | 2015-01-11 02:49:40 |
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Buck converter will do, switching regulator at | by wwill | 2015-01-11 10:46:56 |
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Battery overcharge isn't so much a problem. | by LongFist | 2015-01-12 13:11:51 |
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The VR chip or Zener holds the voltage and causes | by wwill | 2015-01-13 09:18:11 |
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In re the three links. Number one looks good, | by wwill | 2015-01-13 09:26:51 |
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Working on it. | by LongFist | 2015-01-14 13:08:08 |
