Design of high power LD soft-switching linear drive power supply and temperature controller

Author

Zhou, Min ; Zhang, Aiwen ; Cai, Zhiping ; Xu, Huiying ; Liu, Yang ; Li, Manli

Author_Institution

Dept. of Electron. Eng., Xiamen Univ., Xiamen

fYear

2008

Firstpage

372

Lastpage

377

Abstract

In order to drive linear high-power laser diode, we design a new-style and high-efficiency linear power supply and the temperature controlling system, achieving a high-stability current output from 0 to 6 A, whose current ripple is less than 1%. Innovative design of the rectifier mode switch circuit, voltage feedback networks, the soft-switch anti-surge filter circuit and over-current protection circuits with special current-locking function, greatly enhance the efficiency, stability and security of drive system. We also design a temperature controlling system base on the PID algorithm with over-heating protection circuit. Its control range is 0 - 35degC with a controlling precision of 0.1degC.

Keywords

electric drives; overcurrent protection; semiconductor lasers; switched mode power supplies; temperature control; PID algorithm; antisurge filter circuit; current 0 A to 6 A; current-locking function; drive system security; feedback networks; high-stability current; linear high-power laser diode; overcurrent protection circuits; overheating protection circuit; rectifier mode switch circuit; soft-switching linear drive power supply; temperature 0 degC to 35 degC; temperature controller; Control systems; Diode lasers; Feedback circuits; Optical control; Optical design; Power supplies; Rectifiers; Switches; Switching circuits; Temperature control; LD; PID; drive power supply; temperature controller;

fLanguage

English

Publisher

ieee

Conference_Titel

Anti-counterfeiting, Security and Identification, 2008. ASID 2008. 2nd International Conference on

Conference_Location

Guiyang

Print_ISBN

978-1-4244-2584-6

Electronic_ISBN

978-1-4244-2585-3

Type

conf

DOI

10.1109/IWASID.2008.4688423

Filename

4688423