開關(guān)電源效率能弄到0.98不是問題
我干的諧震開關(guān)電源,效率可達(dá)0.95以上(3000W),不久將來將用新理論做到0.98以上.有望達(dá)到開關(guān)電源的顛峰．想當(dāng)初到處找工作沒人要,就因?yàn)槲耶厴I(yè)不久或不會抄板,很快是我的抬頭日了．
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I think maybe 0.98 is possible efficiency for DC to DC converter.For AC-DC converter,I think even we adopt all of the advantage technologies,such as SR,resonant,and so on,the most efficiency 0.93 is the highest value. 0.98 efficiency is impossible,because even we omit other power dissipation,only consider the AC rectifier dissipation,under AC=90V,the line voltage drop is 2V at least,so we can calculate the efficiency is (90-2)/90=88/90=0.9778.
So we can judge it is impossible that AC-DC power supply can get more than 0.98 efficiency!!!!
In my opinion 0.9 is possible.But it is so difficult to increase the efficiency.
And I think we talk about these argumentation, condition is very important,without condition,nothing is impossible.Right?
So we can judge it is impossible that AC-DC power supply can get more than 0.98 efficiency!!!!
In my opinion 0.9 is possible.But it is so difficult to increase the efficiency.
And I think we talk about these argumentation, condition is very important,without condition,nothing is impossible.Right?
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@superpowersupply
Ithinkmaybe0.98ispossibleefficiencyforDCtoDCconverter.ForAC-DCconverter,Ithinkevenweadoptalloftheadvantagetechnologies,suchasSR,resonant,andsoon,themostefficiency0.93isthehighestvalue.0.98efficiencyisimpossible,becauseevenweomitotherpowerdissipation,onlyconsidertheACrectifierdissipation,underAC=90V,thelinevoltagedropis2Vatleast,sowecancalculatetheefficiencyis(90-2)/90=88/90=0.9778.SowecanjudgeitisimpossiblethatAC-DCpowersupplycangetmorethan0.98efficiency!!!!Inmyopinion0.9ispossible.Butitissodifficulttoincreasetheefficiency.AndIthinkwetalkabouttheseargumentation,conditionisveryimportant,withoutcondition,nothingisimpossible.Right?
你是國人還是外老,我不會英文
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@czy991221
你是國人還是外老,我不會英文
我給你翻譯一下:
我認(rèn)為對DC-DC電源來說,98%的效率是可能的. 對于AC-DC電源,我認(rèn)為即使采用所有的先進(jìn)技術(shù),例如同步整流,諧振等,最高效率能達(dá)到93%.
98%的效率是不可能的,因?yàn)榧词刮覀兪÷云渌墓β蕮p失,只考慮AC整流的損耗,90V輸入的時(shí)候,壓降至少是2V,因此我們可以計(jì)算效率(90-2)/90=88/90=0.9778.
因此我們可以判斷AC-DC電源大于0.98的效率是不可能的.
我的觀點(diǎn)是0.9是可能的,再增加效率就非常困難了.
我認(rèn)為我們討論這些爭論時(shí),條件非常重要,沒有條件,沒有什么東西是不可能的,對嗎?
我認(rèn)為對DC-DC電源來說,98%的效率是可能的. 對于AC-DC電源,我認(rèn)為即使采用所有的先進(jìn)技術(shù),例如同步整流,諧振等,最高效率能達(dá)到93%.
98%的效率是不可能的,因?yàn)榧词刮覀兪÷云渌墓β蕮p失,只考慮AC整流的損耗,90V輸入的時(shí)候,壓降至少是2V,因此我們可以計(jì)算效率(90-2)/90=88/90=0.9778.
因此我們可以判斷AC-DC電源大于0.98的效率是不可能的.
我的觀點(diǎn)是0.9是可能的,再增加效率就非常困難了.
我認(rèn)為我們討論這些爭論時(shí),條件非常重要,沒有條件,沒有什么東西是不可能的,對嗎?
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