製服開關電源適配器的輸出電源噪聲,兩招就搞定!
發布時間:2015-09-21 責任編輯:echolady
【導讀】大家偶爾會遇到過開關電dian源yuan適shi配pei器qi出chu現xian輸shu出chu電dian壓ya噪zao聲sheng的de現xian象xiang,輸shu出chu噪zao聲sheng會hui對dui係xi統tong的de工gong作zuo造zao成cheng嚴yan重zhong影ying響xiang,給gei安an全quan運yun行xing留liu下xia隱yin患huan。本ben文wen教jiao你ni兩liang招zhao,助zhu你ni解jie決jue開kai關guan電dian源yuan適shi配pei器qi輸shu出chu噪zao聲sheng的de問wen題ti。
第di一yi種zhong能neng夠gou有you效xiao改gai善shan開kai關guan電dian源yuan適shi配pei器qi輸shu出chu電dian壓ya噪zao聲sheng的de方fang法fa是shi,工gong程cheng師shi可ke以yi在zai適shi配pei器qi輸shu出chu端duan采cai用yong片pian式shi三san端duan電dian容rong器qi與yu普pu通tong電dian解jie電dian容rong器qi組zu合he,以yi此ci來lai改gai善shan濾lv波bo的de高gao頻pin特te性xing。在zai介jie紹shao這zhe種zhong方fang法fa的de具ju體ti操cao作zuo模mo式shi之zhi前qian,我wo們men需xu要yao首shou先xian了le解jie一yi下xia,為wei什shen麼me適shi配pei器qi會hui出chu現xian噪zao聲sheng電dian壓ya峰feng值zhi。在zai沒mei有you增zeng加jia任ren何he措cuo施shi的de情qing況kuang下xia,適shi配pei器qi的de輸shu出chu端duan通tong常chang會hui含han有you較jiao大da的de噪zao聲sheng電dian壓ya的de峰feng值zhi,這zhe是shi由you於yu電dian解jie電dian容rong器qi在zai高gao頻pin下xia的de特te性xing不bu完wan善shan所suo造zao成cheng的de。因yin為wei電dian解jie電dian容rong在zai高gao頻pin下xia可ke以yi用yong電dian容rong、電dian阻zu和he電dian感gan三san者zhe的de串chuan聯lian來lai等deng效xiao,所suo以yi在zai高gao頻pin下xia電dian容rong對dui噪zao聲sheng的de旁pang路lu作zuo用yong不bu在zai明ming顯xian。由you於yu電dian阻zu和he電dian感gan的de存cun在zai,反fan而er使shi噪zao聲sheng電dian壓ya體ti現xian在zai開kai關guan電dian源yuan適shi配pei器qi的de輸shu出chu端duan。
在zai了le解jie了le輸shu出chu噪zao聲sheng峰feng值zhi的de產chan生sheng原yuan因yin之zhi後hou,為wei了le能neng夠gou更geng好hao的de抑yi製zhi開kai關guan電dian源yuan適shi配pei器qi的de輸shu出chu噪zao聲sheng,通tong常chang有you兩liang種zhong方fang法fa可ke以yi被bei產chan品pin研yan發fa人ren員yuan所suo采cai用yong。方fang法fa一yi是shi將jiang輸shu出chu端duan的de電dian解jie電dian容rong一yi拆chai為wei幾ji,即ji將jiang一yi個ge大da容rong量liang的de電dian解jie電dian容rong采cai用yong幾ji個ge小xiao容rong量liang電dian解jie電dian容rong並bing聯lian來lai替ti代dai。這zhe一yi建jian議yi雖sui不bu能neng根gen本ben抑yi製zhi噪zao聲sheng電dian壓ya的de產chan生sheng,但dan用yong新xin辦ban法fa所suo產chan生sheng的de信xin噪zao聲sheng電dian壓ya的de峰feng-fengzhiyaobiyuanlaiweixiao。fangfaershizaidianjiedianrongpangbianbinglianyigexiaorongliangdegaopintaocidianrongqi,liyonggaopindianrongzaigaopinxiasuotixiandedirongkang,shishuchuzaoshengdianyadedaojiaodashuaijian,dangranzaiyinzhidianlubanshangdetaocidianrongyeyinggaibaochibijiaoduandebuxianchangdu,baochijinkenengxiaodexianluzukang。
dierzhongnenggouyouxiaogaishankaiguandianyuanshipeiqishuchudianyazaoshengdefangfashi,gongchengshikeyicaiyonggaoxingnengdebiaomiantiezhuanglvboqilaigaishanzaoshengfengzhiqingkuang。tiezhuanglvboqineibudianlukeyibeidengxiaochengweiyigeπ型xing濾lv波bo線xian路lu,在zai開kai關guan電dian源yuan適shi配pei器qi輸shu出chu端duan串chuan上shang一yi個ge貼tie裝zhuang高gao性xing能neng濾lv波bo器qi,對dui比bi原yuan來lai的de輸shu出chu噪zao聲sheng電dian壓ya峰feng值zhi會hui大da幅fu減jian小xiao,在zai試shi驗yan中zhong,噪zao聲sheng電dian壓ya峰feng值zhi在zai示shi波bo器qi上shang幾ji乎hu顯xian示shi為wei一yi條tiao直zhi線xian,這zhe說shuo明ming輸shu出chu電dian壓ya的de噪zao聲sheng已yi明ming顯xian得de到dao抑yi製zhi,從cong而er很hen好hao說shuo明ming了le表biao麵mian貼tie裝zhuang高gao性xing能neng濾lv波bo器qi在zai這zhe個ge線xian路lu中zhong的de作zuo用yong。
相關閱讀:
別小看了開關電源對LED顯示屏的作用!
發燒友總結:UC3842開關電源的設計問題
光耦在開關電源中的作用你不知道?小編告訴你
特別推薦
- 噪聲中提取真值!瑞盟科技推出MSA2240電流檢測芯片賦能多元高端測量場景
- 10MHz高頻運行!氮矽科技發布集成驅動GaN芯片,助力電源能效再攀新高
- 失真度僅0.002%!力芯微推出超低內阻、超低失真4PST模擬開關
- 一“芯”雙電!聖邦微電子發布雙輸出電源芯片,簡化AFE與音頻設計
- 一機適配萬端:金升陽推出1200W可編程電源,賦能高端裝備製造
技術文章更多>>
- 築基AI4S:摩爾線程全功能GPU加速中國生命科學自主生態
- 一秒檢測,成本降至萬分之一,光引科技把幾十萬的台式光譜儀“搬”到了手腕上
- AI服務器電源機櫃Power Rack HVDC MW級測試方案
- 突破工藝邊界,奎芯科技LPDDR5X IP矽驗證通過,速率達9600Mbps
- 通過直接、準確、自動測量超低範圍的氯殘留來推動反滲透膜保護
技術白皮書下載更多>>
- 車規與基於V2X的車輛協同主動避撞技術展望
- 數字隔離助力新能源汽車安全隔離的新挑戰
- 汽車模塊拋負載的解決方案
- 車用連接器的安全創新應用
- Melexis Actuators Business Unit
- Position / Current Sensors - Triaxis Hall
熱門搜索





