火狐体育app

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直流调速器|低压大电流开关电源的设计
发布时间 : 2018-06-11 14:13 浏览量 : 142

KAIGUANDIANYUANSHILIYONGXIANDAIDIANLIDIANZIJISHU,KONGZHIKAIGUANJINGTIGUANKAITONGHEGUANDUANDESHIJIANBILV,WEICHIWENDINGSHUCHUDIANYADEYIZHONGDIANYUAN。CONGSHANGSHIJI90NIANDAIYILAIKAIGUANDIANYUANXIANGJIJINRUGEZHONGDIANZI、DIANQISHEBEILINGYU,JISUANJI、CHENGKONGJIAOHUANJI、TONGXUN、DIANZIJIANCESHEBEIDIANYUAN、KONGZHISHEBEIDIANYUANDENGDOUYIGUANGFANDISHIYONGLEKAIGUANDIANYUAN。SUIZHEDIANYUANJISHUDEFAZHAN,DIDIANYA,DADIANLIUDEKAIGUANDIANYUANYINQIJISHUHANLIANGGAO,YINGYONGGUANG,YUELAIYUESHOUDAORENMENZHONGSHI。ZAIKAIGUANDIANYUANZHONG,ZHENGJIHEFANJISHIYOUZHEDIANLUTUOPUJIANDAN,SHURUSHUCHUDIANQIGELIDENGYOUDIAN,GUANGFANYINGYONGYUZHONGXIAOGONGLVDIANYUANBIANHUANCHANGHE。GENFANJISHIXIANGBI,ZHENGJISHIBIANHUANQIBIANYAQITONGSUNJIAODI,TONGSHI,ZHENGJISHIDIANLUFUBIANWENBODIANYADIANLIUSHUAIJIANBIFANJISHIMINGXIAN,YINCI,YIBANRENWEIZHENGJISHIBIANHUANQISHIYONGZAIDIYA,DADIANLIU,GONGLVJIAODADECHANGHE。

2  JIBENJISHU

2.1  YOUYUANQIANWEIJISHU

    ZHENGJIDC/DCBIANHUANQIQIGUYOUQUEDIANSHIGONGLVJINGTIGUANJIEZHIQIJIANGAOPINBIANYAQIBIXUCIFUWEI。YIFANGBIANYAQITIEXINBAOHE,YINCIBIXUCAIYONGZHUANMENDECIFUWEIDIANLU。TONGCHANGCAIYONGDEFUWEIFANGSHIYOUSANZHONG,JICHUANTONGDEFUJIARAOZUFA、RCDQIANWEIFA、YOUYUANQIANWEIFA。SANZHONGFANGFAGEYOUYOUQUEDIAN:CIFUWEIRAOZUFAZHENGJIBIANHUANQIDEYOUDIANSHIJISHUCHENGSHUKEKAO,CIHUANENGLIANGKEWUSUNDIHUIKUIDAOZHILIUDIANLUZHONGQU,KESHIFUJIADECIFUWEIRAOZUSHIBIANYAQIJIEGOUFUZAHUA,BIANYAQILOUGANYINQIDEGUANDUANDIANYAJIANFENGXUYAORCHUANCHONGDIANLULAIYIZHI,ZHANKONGBID<0.5,GONGLVKAIGUANGUANCHENGSHOUDEDIANYAYINGLIYUSHURUDIANYUANDIANYACHENGZHENGBI。RCDQIANWEIZHENGJIBIANHUANQIDEYOUDIANSHICIFUWEIDIANLUJIANDAN,ZHANKONGBIDKEYIDAYU0.5,GONGLVKAIGUANGUANCHENGSHOUDIANYAYINGLIJIAODI,DANDABUFENCIHUANENGLIANGXIAOHAOZAIQIANWEIDIANZUZHONG,YINCITAYIBANSHIYONGYUBIANHUANXIAOLVBUGAOQIEJIALIANDEDIANYUANBIANHUANCHANGHE。YOUYUANQIANWEIJISHUSHISANZHONGJISHUZHONGXIAOLVZUIGAODEJISHU,TADEDIANLUTURUTU1SUOSHI,GONGZUOYUANLIRUTU2SUOSHI。ZAI DTSHIDUANZHIQIAN,KAIGUANGUANS1DAOTONG,JICIDIANLIUiMWEIFU,JICONGCrTONGGUOS1LIUXIANGTr,ZAIDTJIEDUAN,KAIGUANGUANSDEQUDONGMAICHONGugsSHIQIDAOTONG,TONGSHIugs1=0,SHIS1 GUANDUAN,ZAIVinDEZUOYONGXIA,JICIDIANLIUYOUFUBIANZHENG,YUANBIANGONGLVTONGGUOBIANYAQICHUANDAOFUBIAN,JISHUCHUDUANDIANGANLCHONGDIAN;ZAI(1-D)TSHIDUAN,ugs=0,SGUANDUAN,ugs1DAOLAISHI S1DAOTONG,iMTONGGUOS1DEFANBINGERJIGUANXIANGCrCHONGDIAN,ZAICrHETrLOUGANGOUCHENGDEXIEZHENDIANLUDEZUOYONGXIA,iMYOUZHENGBIANFU,BIANYAQIFANXIANGJICI。CONGYISHANGFENXIZHONGKEYIKANCHU:YOUYUANQIANWEIZHENGJIBIANHUANQIBIANYAQITIEXINGONGZUOZAISHUANGXIANGDUICHENGCIHUAZHUANGTAI,TIGAOLETIEXINLIYONGLV,QIANWEIDIANRONGDEWENTAIDIANYASUIKAIGUANZHANKONGBIERZIDONGDIAOJIE,YINERZHANKONGBIKEDAYU50%;VoYIDINGSHI,ZHUKAIGUAN、FUZHUKAIGUANYINGLISUIVinDEBIANHUABUDA;SUOYI,ZAIZHANKONGBIHEKAIGUANYINGLIYUNXUDEFANWEINEI,NENGGOUSHIYINGJIAODASHURUDIANYABIANHUAFANWEIDEQINGKUANG。BUZUZHICHUSHIZENGJIALEYIGEGUANZI,SHIDEDIANLUBIANDEFUZA。

 

TU1  YOUYUANQIANWEITONGBUZHENGLIUZHENGJISHIDIANLUTU

TU2  YOUYUANQIANWEIDIANLUGONGZUOYUANLITU

2.2  TONGBUZHENGLIUJISHU

    ZAIDIDIANYADADIANLIUGONGLVBIANHUANQIZHONG,RUOCAIYONGCHUANTONGDEPUTONGERJIGUANHUOXIAOTEJIERJIGUANZHENGLIUYOUYUQIZHENGXIANGDAOTONGYAJIANGDA(DIYAGUIERJIGUANZHENGXIANGYAJIANGYUE0.7V,XIAOCHIJIERJIGUANZHENGXIANGYAJIANGYUE 0.45V,XINXINGDIDIANYAXIAOTEJIERJIGUANKEDA0.32V),ZHENGLIUSUNHAOCHENGWEIBIANHUANQIDEZHUYAOSUNHAO,WUFAMANZUDIDIANYADADIANLIUKAIGUANDIANYUANGAOXIAOLV,XIAOTIJIDEXUYAO。

    MOSFETDAOTONGSHIDEFUANTEXINGWEIYIXIANXINGDIANZU,CHENGWEITONGTAIDIANZURDS,DIYAMOSFETXINQIJIANDETONGTAIDIANZUHENXIAO,RU:IRL3102(20V,61A)、 IRL2203S(30V,116A)、IRL3803S(30V,100A)TONGTAIDIANZUFENBIEWEI0.013Ω、0.007ΩHE0.006Ω,TAMENZAITONGGUO 20ADIANLIUSHI,TONGTAIYAJIANGBUDAO0.3V。LINGWAI,GONGLVMOSFETKAIGUANSHIJIANDUAN,SHURUZUKANGGAO,ZHEIXIETEDIANSHIDEMOSFETCHENGWEIDIDIANYADADIANLIUGONGLVBIANHUANQISHOUXUANDEZHENGLIUQIJIAN。GONGLVMOSFETSHIYIZHONGDIANYAXINGKONGZHIQIJIAN,TAZUOWEIZHENGLIUYUANJIANSHI,YAOQIUKONGZHIDIANYAYUDAIZHENGLIUDIANYADEXIANGWEIBAOCHITONGBUCAINENGWANCHENGZHENGLIUGONGNENG,GUCHENGWEITONGBUZHENGLIUDIANLU。TU1WEIDIANXINGDEJIANGYAXING“TONGBU”KAIGUANBIANHUANQIDIANLU(DANGDIANLUZHONGWUSRSHI,WEI“PUTONG”DEJIANGYAXINGKAIGUANBIANHUANQIDIANLU)。

3  DIANLUDESHEJI

    SUOSHEJIDEDIANYUANCANSHURUXIA:SHURUDIANYAWEI50(1±10%)V,SHUCHUDIANYAWEI3.3V,DIANLIUWEI20A,GONGZUOPINLVWEI100kHz。

    CAIYONGDEZHUDIANLUTUOPURUTU1SUOSHI。YOUYUYOUYUANQIANWEICAIYONGDESHIFLYBACKXINGQIANWEIDIANLU,TADEQIANWEIDIANRONGDIANYAWEI:

    Vc=Vin

SUOXUANYONGDEKONGZHIICXINPIANWEIUC3844,TADEZUIDAZHANKONGBIWEI50%,SUOYIDIANRONGSHANGDEDIANYAZUIDAWEIVin,DIANRONGNAIYAWEI60VYISHANG,ZHIYAOXUANQUZUGOUDAJIKEBAOZHENGDIANLUNENGZHENGCHANGGONGZUO,BENDIANLUSUOXUANQUDEQIANWEIDIANRONGWEI47μF/100V。

    YOUYUANQIANWEIGUANS1DEQUDONGBIXUGENBIANYAQIYUANBIANDEDIGELIKAI,ERQIES1DEQUDONGXINHAOBIXUGENKAIGUANGUANSQUDONGXINHAOFANXIANG,SHIYONGUCC3580KEYISHIXIANLIANGGEGUANZIDEQUDONG,KESHIZHEIGEXINPIANBINGBUCHANGJIAN,YINERZHEILIXUANYONGUC3844GENIR2110ZUHE。UC3844CHULAIDEKONGZHIXINHAOYONGLAIZUOWEIIR2110DEDIDUANSHURU,QIFANXIANGXINHAOZUOWEIIR2110DEGAODUANSHURU,IR2110DEGAODUANQUDONGTONGGUONEIBUZIJUDIANLULAISHIXIANGELI。ZHEIYANG,HUOHUTIYUappJIUDADAOLEQUDONGLIANGGEKAIGUANGUANDEMUDE。

  ZAISHUCHUZHENGLIUDIANLUZHONG,DANGXULIUERJIGUAN(JISRDEFANBINGERJIGUAN)SHOUZHENGXIANGDIANYADAOTONGSHI,YINGJISHIQUDONGSRDAOTONG,YIJIANXIAOYAJIANGHESUNHAO。DANWEILEBIMIANSRYUSR1TONGSHIDAOTONG,ZAOCHENGDUANLUSHIGU,BIXUYOU“SIQU”SHIJIAN,ZHEISHIRENGKAOERJIGUANDDAOTONG。SRDEKAIGUANSHUNSHIYAOYUXULIUERJIGUANDETONGDUANSHUNSHIMIQIEPEIHE,YINCIDUIKAIGUANSUDUYAOQIUHENGAO。LINGWAI,CONGCHENGBENZONGHEKAOLV,XUANYONGIRL3102。

    BIANYAQIDESHEJIGENYIBANZHENGJISHIBIANHUANQIBIANYAQISHEJICHABUDUO,ZHISHIYAOKAOLVTONGBUZHENGLIUGUANDEQUDONG。SUOXUANYONGDETONGBUZHENGLIUGUANDEQUDONGKAITONGDIANYAWEI4VZUOYOU,DIANLUSHUCHUDIANYAWEI3.3V,SHUCHUDUANXIANGDANGYUYIGEJIANGYAXINGDIANLU,ZHANKONGBIZUIDAWEI0.5,SUOYIBIANYAQIFUBIANDIANYAZHISHAOWEI6.6V。YINWEIMOSFETDEZHA-YUANJIANDEGUIYANGHUACENGNAIYAYOUXIAN,YIDANBEIJICHUANZEYONGJIUSUNHUAI,SUOYISHIJISHANGZHA-YUANDIANYAZUIDAZHIZAI20~30VZHIJIAN,RUDIANYACHAOGUO20V,YINGGAIZAIZHAJISHANGJIEWENYAGUAN。

4  SHIYANJIEGUOHEBOXINGFENXI

    KAIGUANGUANS1HESDEUdsBOXINGRUTU3SUOSHI,RefAWEISGUANYAJIANGBOXING,50V/div,RefBWEIS1GUANYAJIANGBOXING,50V/div。DIANLUCISHIGONGZUOZAIVin= 60VZUOYOU,S1HESDEKAIGUANYINGLIDAGAIWEI120V,D=0.5ZUOYOU。TU4WEIBIANYAQISHUCHUDIANYA,YEJIUSHITONGBUZHENGLIUGUANSR1HESRDEQUDONGXINHAO,ZHENGDEBUFENWEISRDEQUDONGXINHAO,FUDEBUFENWEISR1DEQUDONGXINHAO。SHIYANSUODEBOXINGHEFENXIDEBOXINGJIBENWENHE,ZHISHIZAIKAIGUANZHUANHUANSHUNJIAN,DIANYAYOUXIAOJIANFENG,ZHEISHIYOUDIANLUDEZASANCANSHUYINQIDE。GAIDIANLUDEGONGZUOXIAOLVJINGGUOCELIANGDAYUEZAI90%ZUOYOU,JIBENDADAOSHEJIDEYAOQIU。

 

TU3  KAIGUANGUANSHES1DEudsBOXING

TU4  TONGBUZHENGLIUGUANDEQUDONGBOXING

5  JIEYU

    3.3V/20ADEKAIGUANDIANYUANDESHEJIBIAOMING,YOUYUANNIBIANJIATONGBUZHENGLIUDIANLUYONGZAIDIYADADIANLIUDEZHENGJISHIDIANLUSHEJIZHONG,BUJIAPFCDIANLUSHI,NENGGOUQUDEHENGAODEXIAOLV。

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