The design of a laser diode(LD) driver based on switching power supply with power adaption is introduced.The design uses the monolithic microcontroller as the control unit,together with external hardware circuits and PID algorithm.It can realize the constant current drive and power adaptive adjustment of the LD by adjusting the insulated gate bipolar transistor′s(IGBT) duty cycle.The experiment results show that the developed driver has low ripple factor,high efficiency,and high stability.The laser power output is of a stability better than 0.5%,which meets the practical needs of the LD.
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陈瑞霞,孟展,白金柯,毛海涛,张锦龙.功率自适应LD开关电源的设计[J].激光与红外,2010,40(9):961~964 CHEN Rui-xia, MENG Zhan, BAI Jin-ke, MAO Hai-tao, ZHANG Jin-long. Design of LD switching power supply with power adaption[J]. LASER & INFRARED,2010,40(9):961~964