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Proceedings Paper

Design of high current voltage conversion circuit based on LT3743
Author(s): Guang Cai; Xiaoping Lou; Yinmin Zhang; Yunxiao Na; Qianzhe Liu
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Paper Abstract

Laser diodes (LD) are used extensively in fiber lasers as pump sources. The operating characteristic of laser diodes determines a requirement of constant current regulation, high stability and high current in the drive circuit. This paper gives a design of constant current source aiming at the drive circuit of fiber laser pump sources with 24 volt power supply. It is made up of Buck module and constant current module. The synchronous Buck module consists of the chip LT3743, MOSFET Si7848BDP and RJK0330DPB, with the advantages of high-current output, low dissipation power and high power-supply efficiency. Circuit simulation results are given by the simulation software LTspice. It is shown that the Buck module satisfies the need of the circuit.

Paper Details

Date Published: 10 October 2013
PDF: 7 pages
Proc. SPIE 8916, Sixth International Symposium on Precision Mechanical Measurements, 891615 (10 October 2013); doi: 10.1117/12.2035904
Show Author Affiliations
Guang Cai, Beijing Information Science & Technology Univ. (China)
Xiaoping Lou, Beijing Information Science & Technology Univ. (China)
Yinmin Zhang, Beijing Information Science & Technology Univ. (China)
Yunxiao Na, Beijing Information Science & Technology Univ. (China)
Qianzhe Liu, Beijing Information Science & Technology Univ. (China)


Published in SPIE Proceedings Vol. 8916:
Sixth International Symposium on Precision Mechanical Measurements
Shenghua Ye; Yetai Fei, Editor(s)

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