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1、第7卷第19期2007年10月科学技术与工程Vol.7N..19O.L20071671-1819(2007)19-4871-05ScienceTechnologyandEeg;neering@2007与.Tech.Engng.通信技术共用一个激励源的多通道高精度稳流激光电源蔡建乐江文杰，施建华，(杭州师范大学理学院.杭州31001卜国防科学技术大学光电科学与工程学院.，长沙410073)摘耍提出一种多通道独立模流的激光电源模式:由脉宽调制器(PWM)、推挽驱动、高粼变压界等构成激光电源的商压供电主回路，实现初步德压;由比例积分器、光
2、电粉合基、高压调整管等分别构成多个激光电称多个负载回路，实现独立德流。实脸表明:组合系统工作时，三个负载回路之问无相互影响;各负载回路电流称定精度优于0.1%,关健词环型激光陀螺多通道德流激光电派中图法分类号TN245V241.558;文献标识码AInthestrap-downinertianavigationsysteml'11APrincipleof'theMultipleStableCur-whichcontainsthreeringlasers,threeindependentla-rentLaserPowerSupplys
3、erpowersuppliesareneeded.Usually,thelaserpow-ersupplyis。commonswitchpowersupplyl21，which1.1TwoModelsofLaserPowerSupplyismadeofaDC-DCconverter,acurrentsamplingcir-Figure1showsthetwomodelsoflaserpowersup-cuitandahigh-voltageadjustingcircuitandsoon,andplyintheinertianavig
4、ationsystemwhichcontainsitissupplied场27VD.C.powerofthesystem.Itsthreeringlasers.Figure1(a)istheusualmodel,itisworkingfrequencyisabout100kHz,and池relativemadeofthreeindependentlaserpowersupplies.Eachprecisionofstablecurrentissuperiorto10-'atnormalsupplygivesonlyonestable
5、currentbyadjustingthetemperature.outputvoltageofthehighvoltagecircuit.Figure1(b)Inthegeneralcondition,thethreeindependentistshenewmodetlproposed.Iatismadeofbahigh-voltaglelaserpowersupplie。二appliedtosystemdirectly.朴circuitandthreestablecurrentcircuits.RashBut,thereexis
6、tsconsiderabledisturbanceamongtheicurrentsttabilizesthecsurrent场adjeustingvoltagKesuppliesinthissystembecausethefrequenciesofsup-YSooneneewsupplycnangivethreiestable。spliesaren'tidentical.Also,thevolumeofsupplyistoolargeforthesystem.So,anewmodelisgivenfora1.2TheMainCir
7、cuitofLaserPowerSupplymultipleindependentstablecurrentlaserpowersup两MaintainsConstantVoltagewithacommondriver.Fig.2showsthemaincircuitofacommonswitchlaserpowersupply",，whichismadeofapulse-wide-modulator(PWM)，apush-pulldriver,ahigh-fre-2007年s月29日收到杭州师范大学人才引进科研启动基金(02120
8、1)资助quencytransformer,arectification-filter,ahigh-volt-第一作者简介:蔡建乐(1954--),男，湖南益阳人，教授，砚士agesamplingcircuit(R,,R2)，acom
