非對(duì)稱半橋轉(zhuǎn)換器
非對(duì)稱半橋轉(zhuǎn)換器, asymmetrical half-bridge DC to DC converter, 但是資料缺乏,不知道大家能否談?wù)?相關(guān)的工程師可以交個(gè)朋友.
非對(duì)稱半橋轉(zhuǎn)換器
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Good idea
good idea, as I know, the theory is simply, and easy to understand, and can improve efficiency. but the problem is how to prevent the shoot-through, how to control the dead time, but don't use the professional driver IC to cost down and can be enter into mass production, and how to select the power switch and design the transformer to control the resonant cycle is a important consideration. Need to study carefully.
good idea, as I know, the theory is simply, and easy to understand, and can improve efficiency. but the problem is how to prevent the shoot-through, how to control the dead time, but don't use the professional driver IC to cost down and can be enter into mass production, and how to select the power switch and design the transformer to control the resonant cycle is a important consideration. Need to study carefully.
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@arthur.deng
Goodideagoodidea,asIknow,thetheoryissimply,andeasytounderstand,andcanimproveefficiency.buttheproblemishowtopreventtheshoot-through,howtocontrolthedeadtime,butdon'tusetheprofessionaldriverICtocostdownandcanbeenterintomassproduction,andhowtoselectthepowerswitchanddesignthetransformertocontroltheresonantcycleisaimportantconsideration.Needtostudycarefully.
come on
I know little about it, and i want to know more about it, but i have not related documents, why not paste some schematic to explain it in detail, and we can give our own opinion, i think it is a better way to discuss and study.
Longing for your schematic and related documents. thanks.
I know little about it, and i want to know more about it, but i have not related documents, why not paste some schematic to explain it in detail, and we can give our own opinion, i think it is a better way to discuss and study.
Longing for your schematic and related documents. thanks.
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@arthur.deng
Goodideagoodidea,asIknow,thetheoryissimply,andeasytounderstand,andcanimproveefficiency.buttheproblemishowtopreventtheshoot-through,howtocontrolthedeadtime,butdon'tusetheprofessionaldriverICtocostdownandcanbeenterintomassproduction,andhowtoselectthepowerswitchanddesignthetransformertocontroltheresonantcycleisaimportantconsideration.Needtostudycarefully.
shoot-through
我實(shí)在是查不到該詞語(yǔ)shoot-through的漢語(yǔ)意思,特請(qǐng)指教?感謝!
我實(shí)在是查不到該詞語(yǔ)shoot-through的漢語(yǔ)意思,特請(qǐng)指教?感謝!
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@sometimes
討論過(guò)好多次了看delta公司的一篇文章雖然不是專門講AHB,但是比較了各種拓?fù)湓谛」β蕡?chǎng)合的優(yōu)缺點(diǎn)1078551788.pdf
thanks a lot
Thanks, I read this paper two years ago, and we tried AHB, but because the shoot-through problem on the mass production, so we changed to flyback. and based on this paper, we design QR mode flyback with SR for mass production. Thanks a lot. so do you have any other paper for it.
Thanks, I read this paper two years ago, and we tried AHB, but because the shoot-through problem on the mass production, so we changed to flyback. and based on this paper, we design QR mode flyback with SR for mass production. Thanks a lot. so do you have any other paper for it.
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@arthur.deng
thanksalotThanks,Ireadthispapertwoyearsago,andwetriedAHB,butbecausetheshoot-throughproblemonthemassproduction,sowechangedtoflyback.andbasedonthispaper,wedesignQRmodeflybackwithSRformassproduction.Thanksalot.sodoyouhaveanyotherpaperforit.
關(guān)于直通
我想移項(xiàng)全橋也有這個(gè)問(wèn)題,不過(guò)現(xiàn)在已經(jīng)大量應(yīng)用.而AHB也有產(chǎn)品,說(shuō)明是可以解決的.還有見(jiàn)過(guò)一個(gè)用半橋高頻逆變的電源,頻率高達(dá)500K.
我這里有AHB文章,不過(guò)都是理論性的,沒(méi)有實(shí)際電路.
我想移項(xiàng)全橋也有這個(gè)問(wèn)題,不過(guò)現(xiàn)在已經(jīng)大量應(yīng)用.而AHB也有產(chǎn)品,說(shuō)明是可以解決的.還有見(jiàn)過(guò)一個(gè)用半橋高頻逆變的電源,頻率高達(dá)500K.
我這里有AHB文章,不過(guò)都是理論性的,沒(méi)有實(shí)際電路.
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@sometimes
關(guān)于直通我想移項(xiàng)全橋也有這個(gè)問(wèn)題,不過(guò)現(xiàn)在已經(jīng)大量應(yīng)用.而AHB也有產(chǎn)品,說(shuō)明是可以解決的.還有見(jiàn)過(guò)一個(gè)用半橋高頻逆變的電源,頻率高達(dá)500K.我這里有AHB文章,不過(guò)都是理論性的,沒(méi)有實(shí)際電路.
Could you pass to me
Good, I need these paper, would you like to pass to me. Arthur_Deng@apitech.com.tw or arthur01@sohu.com. Thanks and best regard.
Good, I need these paper, would you like to pass to me. Arthur_Deng@apitech.com.tw or arthur01@sohu.com. Thanks and best regard.
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@arthur.deng
thanksalotThanks,Ireadthispapertwoyearsago,andwetriedAHB,butbecausetheshoot-throughproblemonthemassproduction,sowechangedtoflyback.andbasedonthispaper,wedesignQRmodeflybackwithSRformassproduction.Thanksalot.sodoyouhaveanyotherpaperforit.
could you give me these?
thanks
power000@126.com
thanks
power000@126.com
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so so
AHB seems to be attractive for its concise half bridge topology and ZVS capabilty and smaller output filters. but in fact it is not so good because of the following questions:
1. worst soft switching condition when low duty cycle
2.thermal dissipation problem when low duty cycle.
3.nonlinear output voltage gain via duty cycle.
4. bias magnetizing current in the transformer
5. worse dynamic performance
thus it is very difficult to develop a product with this topology especially for the new power electronics engineer.
AHB seems to be attractive for its concise half bridge topology and ZVS capabilty and smaller output filters. but in fact it is not so good because of the following questions:
1. worst soft switching condition when low duty cycle
2.thermal dissipation problem when low duty cycle.
3.nonlinear output voltage gain via duty cycle.
4. bias magnetizing current in the transformer
5. worse dynamic performance
thus it is very difficult to develop a product with this topology especially for the new power electronics engineer.
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@bullwd
sosoAHBseemstobeattractiveforitsconcisehalfbridgetopologyandZVScapabiltyandsmalleroutputfilters.butinfactitisnotsogoodbecauseofthefollowingquestions:1.worstsoftswitchingconditionwhenlowdutycycle2.thermaldissipationproblemwhenlowdutycycle.3.nonlinearoutputvoltagegainviadutycycle.4.biasmagnetizingcurrentinthetransformer5.worsedynamicperformancethusitisverydifficult todevelopaproductwiththistopologyespeciallyforthenewpowerelectronicsengineer.
I donot think so.
if there is the proregulator pfc, so the items above are no problem.
in fact, there have been this kind of products in some home appliance application.for example, PDP.
It is very popular.
if there is the proregulator pfc, so the items above are no problem.
in fact, there have been this kind of products in some home appliance application.for example, PDP.
It is very popular.
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一以前下載過(guò)一篇文章.1107442261.pdf
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PLS reference it, It's a type application circuit of fairchild(ML4800)1140613989.pdf
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@bullwd
sosoAHBseemstobeattractiveforitsconcisehalfbridgetopologyandZVScapabiltyandsmalleroutputfilters.butinfactitisnotsogoodbecauseofthefollowingquestions:1.worstsoftswitchingconditionwhenlowdutycycle2.thermaldissipationproblemwhenlowdutycycle.3.nonlinearoutputvoltagegainviadutycycle.4.biasmagnetizingcurrentinthetransformer5.worsedynamicperformancethusitisverydifficult todevelopaproductwiththistopologyespeciallyforthenewpowerelectronicsengineer.
高手超多.全EN看不大懂.
不過(guò)Bbullwd你老兄說(shuō)的第1和2條我就不太明白了,好像大部分TP都會(huì)存在這類問(wèn)題吧!不知老兄你是怎么理解這方面的,望指教!
不過(guò)Bbullwd你老兄說(shuō)的第1和2條我就不太明白了,好像大部分TP都會(huì)存在這類問(wèn)題吧!不知老兄你是怎么理解這方面的,望指教!
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