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Only $100 each!
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John Larkin Highland Technology, Inc picosecond timing laser drivers and controllers
jlarkin att highlandtechnology dott com
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strange animal
Jan 27, 2015
8 Replies
Nice gate charge.
Cheers
What the heck is the use for U4, Figure 24?
Cannot e too picky at $100 per electron..
U3 and U4 look like they should be isolated DC-DC converter blocks, but are poorly drawn.
Cheers
Syd
On a sunny day (Mon, 26 Jan 2015 20:19:59 -0800) it happened John Larkin wrote in :
gate drain 103 nC????
At 1700 V?
Internal gate resistance in the few Ohms range Would not be sure how to drive that thing...
Ahh, can I ask some silly questions? Why is it called a junction transistor with gate, source and drain. It looks like a fet? Jfet? Then they draw it later as a bipolar transistor. And the gate source "leakage" current is 20nA?
George H.
It's for high end critical application products, nothing cheap.
And they're thinking:
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It seems to act like a bipolar transistor, but with 3 volts Vbe on.
Once you start doing heterojunction tricks, zillions of possibilities open up, nuch more than what you can do by doping silicon.
I've noticed a bipolar mode in e-phemts, namely lots more drain current when the gate begins to conduct.
John Larkin Highland Technology, Inc
picosecond timing precision measurement
jlarkin att highlandtechnology dott com
http://www.highlandtechnology.com
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