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Proceedings Paper

Compact, Efficient, Solid-State Flashlamp Modulator
Author(s): John L. Matilaine; Walter F. J. Crewson
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Paper Abstract

The Universal Voltronics type BAX-1.6-15,000-RC-LANL flashlamp modulator built for Los Alamos National Lahoratories in 1984 has proved a highly reliable unit. It has delivered over limo hours of failure-free service. This unit develops 15 kW average output power; it contains two separate PFN subsystems, each with 30 microfarad capacitance, charged to 1414 volts, which deliver 1000-ampere pulses to two flashlamp loads at 250Hz. The efficiency of the unit is in the 90-percent range. About one kW is dissipated inside the modulator. The entire modulator is packaged in a 4 ft. long, 2 ft. high, 2 ft. wide enclosure, and is water cooled. It consists of solid-state controls (shot counters, digital voltmeters, LED indicators), an SCR-regulated DC supply with water-cooled transformer, an SCR command charger and water-cooled resonant charging choke, and two PFN assemblies, each containing a 30-microfarad capacitor, an 1800-volt inverter-class SCR output switch, a pulse shaping inductor and a "simmer" supply to sustain the flashlamp discharge between pulses. Each PFN is mounted on a removable tray for easy service and maintenance.

Paper Details

Date Published: 18 May 1987
PDF: 8 pages
Proc. SPIE 0735, Pulse Power for Lasers, (18 May 1987); doi: 10.1117/12.938048
Show Author Affiliations
John L. Matilaine, Universal Voltronics Corporation (United States)
Walter F. J. Crewson, Universal Voltronics Corporation (United States)

Published in SPIE Proceedings Vol. 0735:
Pulse Power for Lasers
Tom R. Burkes, Editor(s)

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