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Title: High speed switching power supply for a light controlled laser system

Abstract

A high speed switching power supply for a laser system is disclosed. In the preferred embodiment, proportional-plus-derivative feedback of the emitted light controls the duty cycle of the MOS-FET switching transistor to vary the d.c. voltage level applied across a storage capacitor from a d.c. power supply. The storage capacitor is connected across a laser tube to apply its stored voltage thereto. The MOS-FET transistor permits high speed switching. The derivative portion of the feedback damps out oscillatory tendencies in the feedback loop to permit increased loop bandwidth. The combination of the MOS-FET transistor and proportional-plus-derivative feedback permits the laser output to be controlled in a voltage-controlled mode.

Inventors:
;
Publication Date:
OSTI Identifier:
5376411
Patent Number(s):
US 4504951
Assignee:
American Laser Corporation
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 1 Jun 1982; Other Information: PAT-APPL-386600
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; SEMICONDUCTOR LASERS; MODE CONTROL; POWER SUPPLIES; FEEDBACK; MOSFET; RADIATION DETECTORS; TRANSISTOR SWITCHING CIRCUITS; VISIBLE RADIATION; CONTROL; ELECTROMAGNETIC RADIATION; ELECTRONIC CIRCUITS; ELECTRONIC EQUIPMENT; EQUIPMENT; FIELD EFFECT TRANSISTORS; LASERS; MEASURING INSTRUMENTS; MOS TRANSISTORS; RADIATIONS; SEMICONDUCTOR DEVICES; SWITCHING CIRCUITS; TRANSISTORS; 420300* - Engineering- Lasers- (-1989)

Citation Formats

Mc Mahan, W H, and Holtman, S H. High speed switching power supply for a light controlled laser system. United States: N. p., 1985. Web.
Mc Mahan, W H, & Holtman, S H. High speed switching power supply for a light controlled laser system. United States.
Mc Mahan, W H, and Holtman, S H. 1985. "High speed switching power supply for a light controlled laser system". United States.
@article{osti_5376411,
title = {High speed switching power supply for a light controlled laser system},
author = {Mc Mahan, W H and Holtman, S H},
abstractNote = {A high speed switching power supply for a laser system is disclosed. In the preferred embodiment, proportional-plus-derivative feedback of the emitted light controls the duty cycle of the MOS-FET switching transistor to vary the d.c. voltage level applied across a storage capacitor from a d.c. power supply. The storage capacitor is connected across a laser tube to apply its stored voltage thereto. The MOS-FET transistor permits high speed switching. The derivative portion of the feedback damps out oscillatory tendencies in the feedback loop to permit increased loop bandwidth. The combination of the MOS-FET transistor and proportional-plus-derivative feedback permits the laser output to be controlled in a voltage-controlled mode.},
doi = {},
url = {https://www.osti.gov/biblio/5376411}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Mar 12 00:00:00 EST 1985},
month = {Tue Mar 12 00:00:00 EST 1985}
}