Avalanching Transistors

Grumpy · 2010.09.22, 20:28:30

Transistors can be operated in avlanche mode to produce short HV pulses:

Baker R.J., "High voltage pulse generation using current mode second breakdown in a bipolar junction transistor," Review of Scientific Instruments 62(4), 1031-1036. 1990

http://cmosedu.com/jbaker/papers/1991/RSI621991.pdf

Avalanche transistor selection for long term stability in streak camera sweep and pulser applications.
Lawrence Livermore National Lab., CA.
S. W. Thomas, R. L. Griffith and A. T. Teruya
http://www.osti.gov/bridge/servlets/purl/6377480-5xCQhg/

A fast cavity dumper for a picosecond glass laser
S. M. Oak and K. S. Bindra
B. S. Narayan and FL K. Khardekar
http://icecube.wisc.edu/~kitamura/NK/Flasher_Board/Useful/research/RSI00308.pdf

Grumpy · 2021.02.23, 03:28:19

avalanche papers

Grumpy · 2021.02.23, 03:31:26

avalanche

Grumpy · 2021.02.23, 03:33:14

avalanche

Grumpy · 2021.02.23, 03:36:20

avalanche

Grumpy · 2021.02.23, 03:37:50

avalanche

Grumpy · 2021.02.23, 03:38:32

avalanche

Grumpy · 2021.02.23, 19:59:06

delay lines to replace the coax delay

Grumpy · 2022.08.24, 19:43:21

After trying to use 2N5551's for a long time, I gave up.

They are too hard for me to trigger, needing a trigger pulse of at least 10v and rise time less than 10ns.

All Zetex avalanche transistors and 2N3904's are easy to trigger.

I have a few HV transistors that I have not tried yet.