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Proceedings Paper

Switched-mode laser power supply
Author(s): Constantin Blanaru
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Paper Abstract

A switched-mode laser power supply (SMPS) for driving He-Ne lasers is presented. It uses an integrated SMPS control circuit to drive a flyback converter running in discontinuous current mode. The IC controls the SMPS power throughput and regulation by pulse-width modulation (PWM) of a fixed frequency drive signal for a bipolar power switching transistor. PWM control is achieved by varying the duty factor of the SMPS power transistor switching between 17.5% and 40%. The SMPS operates from a main input voltage range of (185-250) Vrms/50 Hz with an efficiency higher than 90%.

Paper Details

Date Published: 29 June 2001
PDF: 6 pages
Proc. SPIE 4430, ROMOPTO 2000: Sixth Conference on Optics, (29 June 2001); doi: 10.1117/12.432809
Show Author Affiliations
Constantin Blanaru, National Institute for Laser, Plasma and Radiation Physics (Romania)

Published in SPIE Proceedings Vol. 4430:
ROMOPTO 2000: Sixth Conference on Optics
Valentin I. Vlad, Editor(s)

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