Switched-mode laser power supply

Constantin Blanaru

doi:10.1117/12.432809

29 June 2001 Switched-mode laser power supply

Constantin Blanaru

Proceedings Volume 4430, ROMOPTO 2000: Sixth Conference on Optics; (2001) https://doi.org/10.1117/12.432809
Event: ROMOPTO 2000: Sixth Conference on Optics, 2000, Bucharest, Romania

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%.

Citation Download Citation

Constantin Blanaru "Switched-mode laser power supply", Proc. SPIE 4430, ROMOPTO 2000: Sixth Conference on Optics, (29 June 2001); https://doi.org/10.1117/12.432809

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