kulit06
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« on: December 21, 2009, 03:48:29 PM » |
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mga masters tanong ko lang po kung magandang idea ba to?gumawa kasi ako ng gainclone amps(lm3886) tapos may smps ako na +/- 35v 8A,yun sana gagamitin kong power supply.ok lang ba yun?thanks!  |
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« on: December 21, 2009, 03:48:29 PM » |
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danny
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« Reply #1 on: December 21, 2009, 03:50:41 PM » |
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marami-rami na ding gumagamit ng smps yung mga ibang branded na subwoofer ay iyan na ang gamit tapos nga class D pa yung iba  |
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danny
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kulit06
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« Reply #2 on: December 21, 2009, 04:37:54 PM » |
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ganun ba sir danny?pansin ko kasi may detailed yung tunog tsaka mas maganda ang bass nung amp pag smps gamit ko eh. |
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kulit06
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« Reply #3 on: December 21, 2009, 04:45:02 PM » |
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sir danny bale ano na ba ang total ampere rating ng smps kung naka series ay 2pcs na 35V 7A?ganun kasi ginawa ko para makakuha ng +/- 35V.
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dan.enriquez
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« Reply #6 on: December 21, 2009, 10:34:06 PM » |
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7 AMPS parin kasi hindi mo naman ikinabit ng PARALLEL split voltage kalang tataas lang yung end-to-end voltage mo pero same parin CURRENT nyan.
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danny
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« Reply #7 on: December 22, 2009, 12:55:59 AM » |
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ganun ba sir danny?pansin ko kasi may detailed yung tunog tsaka mas maganda ang bass nung amp pag smps gamit ko eh. personally nde ko pa gaano naririnig difference, its probably nde lang ako naka pay attention nde bale, i will try to do some test and will let you know. i don't want to give any wrong info ng walang basehan |
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danny
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rdpzycho
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« Reply #8 on: December 22, 2009, 01:07:17 AM » |
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kung pasok sa kayang i-maintain ng rejection ng amp 'yung switching frequency ng SMPS, 'di talaga maririnig, EXCEPT kung may GOLDEN EARS. mas buo talaga ang bass kapag SMPS, kayang-kaya kasing magbigay ng transient demands (lalo na kung critical conduction ang design tulad nung sa mga motherboard papuntang CPU). 'di tulad ng filtered supply, kapag nagkaroon ng malaking demand sa pagitan ng 2 peak ng cycle, maghihintay pa ng peak bago maka-cope 'yung supply. labas na rin nga pala sa hearing limits ng tao 'yung frequency ng SMPS, ang kailangan lang, i-filter para mawala 'yung noise na galing sa supply. |
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kulit06
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« Reply #9 on: December 22, 2009, 02:48:17 AM » |
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enough na kaya yung filter ko?2 pcs na 10,000uf/50V na blackgate tapos may 2 pcs na wima 100nf bypass caps.
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danny
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« Reply #10 on: December 22, 2009, 03:47:32 AM » |
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enough na kaya yung filter ko?2 pcs na 10,000uf/50V na blackgate tapos may 2 pcs na wima 100nf bypass caps.
blackgate and wima both good may kamahalan hehee pero ok ang quality nitong mga ito |
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danny
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rdpzycho
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« Reply #11 on: December 22, 2009, 05:34:57 AM » |
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kung wala ng naririnig na ingay, ok na. |
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danny
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« Reply #12 on: December 22, 2009, 05:42:14 AM » |
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danny
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RaffT
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« Reply #13 on: December 22, 2009, 08:18:43 AM » |
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I hear something?!?!?!?! |
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Learning is CooL! BEAM robotics/DIY UCD180/PSP/AC wtmtr/digiESRmtr/PICkit™2 clone/SGTC/SSTC/DR-SSTC
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danny
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« Reply #14 on: December 22, 2009, 09:41:07 AM » |
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I hear something?!?!?!?! nyakk mag tatanggal muna ako ng ear wax ko |
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danny
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glutnix_neo
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« Reply #15 on: December 22, 2009, 09:43:09 AM » |
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kung pasok sa kayang i-maintain ng rejection ng amp 'yung switching frequency ng SMPS, 'di talaga maririnig, EXCEPT kung may GOLDEN EARS. mas buo talaga ang bass kapag SMPS, kayang-kaya kasing magbigay ng transient demands (lalo na kung critical conduction ang design tulad nung sa mga motherboard papuntang CPU). 'di tulad ng filtered supply, kapag nagkaroon ng malaking demand sa pagitan ng 2 peak ng cycle, maghihintay pa ng peak bago maka-cope 'yung supply. labas na rin nga pala sa hearing limits ng tao 'yung frequency ng SMPS, ang kailangan lang, i-filter para mawala 'yung noise na galing sa supply. yan din naisip ko dati, no doubt mas maingay ang SMPS pero yung switching frequency nya eh labas naman sa hearing limit ng tao, |
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RaffT
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« Reply #16 on: December 22, 2009, 09:52:12 AM » |
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yung latest? trend kasi eh i-mix ans SMPS and D-amps.. dyan talaga magkaka-alaman ng well designed circuit AND board layout |
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danny
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« Reply #17 on: December 22, 2009, 10:00:50 AM » |
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  iyan ang isa sa mga labas ngaun na class D amp ok din naman siya pero kulang sa clarity ng konti over all not bad |
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danny
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rdpzycho
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« Reply #18 on: December 22, 2009, 11:26:01 AM » |
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buong band ba 'yan sir? sa higher frequencies lang naman medyo mahihirapan pumantay 'yung Class D sa linear amps, pero kung well designed, wala siguro halos difference for most listeners. |
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"Keep on starting, and finishing will take care of itself."
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danny
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« Reply #19 on: December 22, 2009, 11:39:20 AM » |
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nde talga ok ang class D sa higher freq. or full range. nde pa rin cla malinis tumunog like class a and class ab kaya most class D ay nakikita ko sa subwoofer designs b&w madalas gumamit nito sa subwoofer saka JL audio etc. im sure in the near future magiging mas maayos na ang designs nila. |
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danny
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