Design for High-power Blue Laser Temperature Control [J
- HUANG Jianping, XU Huiying
- MODERN ELECTRONICS TECHNIQUE,
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.