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Title: Compact optical transconductance varistor

Patent ·
OSTI ID:1215626

A compact radiation-modulated transconductance varistor device having both a radiation source and a photoconductive wide bandgap semiconductor material (PWBSM) integrally formed on a substrate so that a single interface is formed between the radiation source and PWBSM for transmitting PWBSM activation radiation directly from the radiation source to the PWBSM.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-07NA27344
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Number(s):
9,142,339
Application Number:
13/928,322
OSTI ID:
1215626
Resource Relation:
Patent File Date: 2013 Jun 26
Country of Publication:
United States
Language:
English

References (10)

Multiple gap optically activated switch patent September 1987
Photoconductive power switch patent September 1987
Transparent selective illumination means suitable for use in optically activated electrical switches and optically activated electrical switches constructed using same patent September 1991
High-voltage switch having series-connected light-responsive semiconductor elements and light concentrating means for the semiconductor elements patent November 1994
Ultrafast, high voltage pulser using circumferentially illuminated, laser-switched radial transmission line patent June 1998
Photoconductive switch module and manufacturing method thereof patent July 2004
Optically-initiated silicon carbide high voltage switch with contoured-profile electrode interfaces patent September 2012
Optically controlled silicon carbide and related wide-bandgap transistors and thyristors patent June 2013
Transversely-Illuminated High Current Photoconductive Switches with Geometry-Constrained Conductivity Path patent-application December 2013
Compact optical transconductance varistor patent-application December 2013

Cited By (1)

Compact optical transconductance varistor patent September 2015

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