M
Mike Poulton
- Jan 1, 1970
- 0
I imagine this topic has probably been covered before, but I was unable to
find any good info using google/google groups. I am considering (yet
again) building a copper halide laser. The power supply for a copper
halide laser is a bit tough -- a stream of 50ns 15kV pulses at 20kHz.
Hydrogen thyratrons are great for this sort of thing, except that they
can't easily be made to repeat their performance 20,000 times per second.
I'm leaning towards a string of series mosfets or IGBTs. How can I make a
string of 15 switches (1200V each) commutate rapidly, without destroying
half the stack due to avalanche energy? How can I deal with 15 separate
isolated gate drives that all must switch simultaneously? Is this even
practical? Any advice would be appreciated.
--
Mike Poulton
MTP Technologies
Live free or die! http://www.indefenseoffreedom.org/
Unless the government has a really excellent reason, anyone should be
allowed to possess, own, purchase, store, use, publish, say, or do
anything that does not cause demonstrable harm to another person without
that person's consent. "To fight terrorism" in the vague sense is not
even close to sufficient reason.
find any good info using google/google groups. I am considering (yet
again) building a copper halide laser. The power supply for a copper
halide laser is a bit tough -- a stream of 50ns 15kV pulses at 20kHz.
Hydrogen thyratrons are great for this sort of thing, except that they
can't easily be made to repeat their performance 20,000 times per second.
I'm leaning towards a string of series mosfets or IGBTs. How can I make a
string of 15 switches (1200V each) commutate rapidly, without destroying
half the stack due to avalanche energy? How can I deal with 15 separate
isolated gate drives that all must switch simultaneously? Is this even
practical? Any advice would be appreciated.
--
Mike Poulton
MTP Technologies
Live free or die! http://www.indefenseoffreedom.org/
Unless the government has a really excellent reason, anyone should be
allowed to possess, own, purchase, store, use, publish, say, or do
anything that does not cause demonstrable harm to another person without
that person's consent. "To fight terrorism" in the vague sense is not
even close to sufficient reason.