大功率電源模塊散熱性能為什麼會出現較大的差異?
發布時間:2015-08-11 責任編輯:sherry
【導讀】大功率的電源模塊sanrexingnengweishenmehuichuxianjiaodadechayi?sanreqidexuanzeduiyusanrexiaoguodouyounaxieyingxiangne?benwenjianghuijiuzheyiwentizhankaijianyaofenxi,yiqilaikankanzhexiechayishiyounaxiewentizaochengdeba。
dagonglvdemokuaidianyuantongchangdegongzuoyunxingguochengzhong,rongyichuxianmokuaiwenduguogaofaredeqingkuang,yincizaiyanfaguochengzhongnengfouduisanrexingnengtigongyouxiaobaozhangjiuchengweilebaizaiyanfabumenmianqiandezhongyaowentizhiyi,xuanyongheshidesanreqiyejiuchengweileyanfaguochengzhongdezhongzhongzhizhong。
那麼,dagonglvdedianyuanmokuaisanrexingnengweishenmehuichuxianjiaodadechayi?sanreqidexuanzeduiyusanrexiaoguodouyounaxieyingxiangne?benwenjianghuijiuzheyiwentizhankaijianyaofenxi,yiqilaikankanzhexiechayishiyounaxiewentizaochengdeba。
shouxian,sanreqichipianchangduhuizaochengsanrexingnengdechayiwenti。zaiyanfaguochengzhong,shidangzengjiasanreqidechipianchangdushikeyiyouxiaojianxiaodianyuanmokuaideqijianjiewen,danshiguofenzengjiachipianchangdubingbunengquebaoreliangchuandaozhisanreqichipiandemoduan,fanershisanreqizhongliangzengjiataiduo。yibanrenwei,sanreqidechipianchengduhejizuokuandubilijiejin1時,傳熱效果較好。
zaizhe,sanreqichipianhoududexuanzeyetongyanghuiyingxiangmokuaidesanrexingneng。zaizhengchangyunxingdeqingkuangxia,youyudaorezhuyaoshiyanzhedianyuanmokuaidesanreqichipianzongxiangfangxiangchuandi,yinerchipiandehoududuiyusanreqirexingnengmeiyoutaidadeyingxiang,chipianhoududezengjiabingmeiyoushireyuanjiewenjiangdihenduo,fanerzengjialesanreqidezhongliang。weilebaozhengsanreqichipiandeyingduqieyiyujiagong,chipianyingdubunengtaibo,gongchengshangyibanhuijiangsanreqichipiandehouduguidingzai≥1mm左右。
除chu了le上shang麵mian提ti到dao的de兩liang點dian之zhi外wai,散san熱re器qi翅chi片pian個ge數shu也ye同tong樣yang會hui影ying響xiang到dao模mo塊kuai電dian源yuan的de散san熱re性xing能neng。在zai模mo塊kuai正zheng常chang工gong作zuo的de前qian提ti下xia,隨sui著zhe翅chi片pian數shu目mu的de增zeng多duo,熱re源yuan結jie溫wen會hui有you所suo降jiang低di。但dan是shi超chao過guo某mou一yi數shu值zhi之zhi後hou,隨sui著zhe翅chi片pian的de增zeng多duo,器qi件jian結jie溫wen不bu但dan沒mei有you明ming顯xian變bian化hua反fan而er散san熱re器qi的de重zhong量liang會hui明ming顯xian增zeng加jia。同tong時shi,翅chi片pian數shu目mu增zeng加jia有you時shi還hai要yao考kao慮lv器qi件jian安an裝zhuang的de問wen題ti,有you的de器qi件jian安an裝zhuang在zai散san熱re器qi兩liang翅chi片pian之zhi間jian,如ru果guo翅chi片pian數shu太tai多duo,器qi件jian是shi不bu容rong易yi安an裝zhuang在zai散san熱re器qi上shang的de,因yin而er工gong程cheng師shi千qian萬wan不bu能neng盲mang目mu增zeng加jia翅chi片pian的de數shu目mu。
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>>
- 邊緣AI的發展為更智能、更可持續的技術鋪平道路
- 每台智能體PC,都是AI時代的新入口
- IAR作為Qt Group獨立BU攜兩項重磅汽車電子應用開發方案首秀北京車展
- 構建具有網絡彈性的嵌入式係統:來自行業領袖的洞見
- 數字化的線性穩壓器
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






