本文選題：激光技術(shù) + 溫度控制　； 參考：《激光技術(shù)》2017年05期

【摘要】：半導(dǎo)體激光器的輸出波長和功率隨溫度變化而變化,為了確保激光器工作性能,須對其進(jìn)行恒溫控制。采用脈沖寬度調(diào)制功率驅(qū)動器DRV595驅(qū)動半導(dǎo)體制冷器的方法,設(shè)計了一種雙向大電流輸出的高精度溫度控制系統(tǒng)。在S域?qū)ο到y(tǒng)進(jìn)行了建模分析,搭建經(jīng)典比例-積分-微分控制器,采用橋式采樣電阻,純硬件電路實現(xiàn),結(jié)構(gòu)簡單,省掉了數(shù)字控制器的復(fù)雜軟件編寫。在常溫試驗中取得了±0.03℃的控制精度,DRV595集成脈沖寬度調(diào)制和雙向MOSFET,輸出電流最大為±4A。雙向電流驅(qū)動半導(dǎo)體熱電制冷器,實現(xiàn)了無死區(qū)控制。結(jié)果表明,脈沖寬度調(diào)制方式驅(qū)動和低輸出級電阻大大降低了功率耗散。該系統(tǒng)工作穩(wěn)定、功耗低、控制精度較高,具有實用價值。
[Abstract]:The output wavelength and power of semiconductor lasers vary with temperature. In order to ensure the performance of the laser, constant temperature control is necessary. A high precision temperature control system with bidirectional high current output is designed by using the pulse width modulated power driver DRV595 to drive the semiconductor cooler. The system is modeled and analyzed in S domain, and the classical proportional-integral-differential controller is built. The bridge type sampling resistor is adopted. The pure hardware circuit is realized, the structure is simple, and the complicated software of the digital controller is saved. The control accuracy of 鹵0.03 鈩，

本文編號：2035117