DCDC設計實例
1． 僅供參考(only for your reference)
2． 產(chǎn)品設計中(new project)
3． 大訂單.
4． 低價,高可靠,高效率.
5． 詳細設計過程.
因空閑時間少,各位不要問與主題無關的問題.Ding Ding 即可.
Below is the product specification:
In put voltage:38Vdc to 75Vdc.
Output voltage:
V1:3.3V, 5A.total errorband:2%.ripple:40mVpk-pk
V2:2.5V, 5A. total error band:2%.ripple:25mVpk-pk
V3:1.3V, 15A. total error band:2%.ripple:15mVpk-pk
V4:3.3V, 2A. total error band:25%.ripple:35mVpk-pk
Vx:20V, 2.5A. total error band:3%. ripple:60mVpk-pk
total output Power:110W.
Mechanical dimensions:100mm*72mm*12.7mm.
DCDC設計實例
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@六合一撲
Phase1: 基于以下因素,確定電路結(jié)構(gòu):1)Lowcost2)Highefficiency.3)Mechanicaldimensionsrequest.4)Production:ALLSMDcomponent.可發(fā)表你的意見.
Phase1:
電路結(jié)構(gòu)如下:
1) 3.3V converter :output 3.3V,60W.
輸出3.3V,2A, 經(jīng)一開關管輸出3.3V,5A,共17W.
經(jīng) buck 電路輸出2.5V,5A, 共13W.
經(jīng) buck 電路輸出1.5V,15A, 共25W.
1) 20V converter :output 20V,50W.
Below is the schematic:
1157439027.doc
電路結(jié)構(gòu)如下:
1) 3.3V converter :output 3.3V,60W.
輸出3.3V,2A, 經(jīng)一開關管輸出3.3V,5A,共17W.
經(jīng) buck 電路輸出2.5V,5A, 共13W.
經(jīng) buck 電路輸出1.5V,15A, 共25W.
1) 20V converter :output 20V,50W.
Below is the schematic:
1157439027.doc
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@六合一撲
Phase1:電路結(jié)構(gòu)如下:1)3.3V converter:output3.3V,60W. 輸出3.3V,2A,經(jīng)一開關管輸出3.3V,5A,共17W. 經(jīng)buck電路輸出2.5V,5A,共13W. 經(jīng)buck電路輸出1.5V,15A,共25W.1)20V converter:output20V,50W.Belowistheschematic:1157439027.doc
sorry.1157439149.doc
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@六合一撲
Phase1:電路結(jié)構(gòu)如下:1)3.3V converter:output3.3V,60W. 輸出3.3V,2A,經(jīng)一開關管輸出3.3V,5A,共17W. 經(jīng)buck電路輸出2.5V,5A,共13W. 經(jīng)buck電路輸出1.5V,15A,共25W.1)20V converter:output20V,50W.Belowistheschematic:1157439027.doc
sorry.1157439587.doc
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Phase3:
元件Lose(發(fā)熱)計算:
include:
1) transformer
2) inductor
3) mosfet
4) diode
5) other
用Mathcad 自動計算.
Transformer design as below
1157509615.doc
元件Lose(發(fā)熱)計算:
include:
1) transformer
2) inductor
3) mosfet
4) diode
5) other
用Mathcad 自動計算.
Transformer design as below
1157509615.doc
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@六合一撲
Welcome!Jundz 3.3Vconverterdesign午后完成,共13頁.PDF文擋,Mathcad文擋.見者有分.請付出emailaddresS.
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@六合一撲
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抓住本小姐上面兩個大波,再往下鉆,你就真正明白很多問題.
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