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Author Topic: P3A amp 100 watts Help  (Read 31910 times)

Offline j a y k e z

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Re: P3A amp 100 watts Help
« Reply #280 on: May 02, 2012, 02:09:19 PM »
Quote from: 1SaGing5 on May 02, 2012, 01:37:27 PM
imbes na emitter resistor naging collector resistor ;D

ang concern ko ay, pwede ba magkasama lahat ng collectors? wouldn't it mess up with the circuit?


anong ibig mong sabihin sis?  :o
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Re: P3A amp 100 watts Help
« Reply #280 on: May 02, 2012, 02:09:19 PM »

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Re: P3A amp 100 watts Help
« Reply #281 on: May 02, 2012, 02:15:37 PM »
kung gusto nyo ng common ang collectors sa heatsink, yung QSC amp ang gawin ninyo.... ;D
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Re: P3A amp 100 watts Help
« Reply #281 on: May 02, 2012, 02:15:37 PM »

Offline 01110011

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Re: P3A amp 100 watts Help
« Reply #282 on: May 02, 2012, 02:20:05 PM »
Quote from: JikzZzZzZzZzZzZzZzZzZzZzZzZz on May 02, 2012, 02:09:19 PM
anong ibig mong sabihin sis?  :o
ok lang ba na common yung lahat ng collectors? o kailangan pa iisolate sa heatsink yung collector ng transistor?
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Re: P3A amp 100 watts Help
« Reply #282 on: May 02, 2012, 02:20:05 PM »

Offline j a y k e z

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Re: P3A amp 100 watts Help
« Reply #283 on: May 02, 2012, 02:52:22 PM »
Quote from: 1SaGing5 on May 02, 2012, 02:20:05 PM
ok lang ba na common yung lahat ng collectors? o kailangan pa iisolate sa heatsink yung collector ng transistor?

kung sakin lang, isolate ko na lang ;D
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Re: P3A amp 100 watts Help
« Reply #283 on: May 02, 2012, 02:52:22 PM »

Offline 01110011

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Re: P3A amp 100 watts Help
« Reply #284 on: May 02, 2012, 03:03:10 PM »
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Re: P3A amp 100 watts Help
« Reply #284 on: May 02, 2012, 03:03:10 PM »

Offline gorex

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Re: P3A amp 100 watts Help
« Reply #285 on: May 02, 2012, 05:48:47 PM »
di ko pa ma post p3a pics kasi di mag charge camera ko nasira charger nag order pa. baka sa 15 darating. sa cam celpon try ko kung malinaw ba. yung firsta p3a ko point to point connection using pcb na may butas butas. kasi para kung me palpak o peke na parts madali lang tangalin experiment pa kasi ako kung ok ba matching sa parts. tulad nung driver na peke tinangal ko. ang wiring nito magulo parang pansit pero tumutunog naman. wala pa sa case kaya kung i post ko baka mabigla kayo sa nakita niyo na wala sa case.  :D
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We use negative feedback in audio amplifiers to stabilize the gain, increase the bandwidth,lower the output impedance and lower the non-linear distortion.

Offline gorex

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Re: P3A amp 100 watts Help
« Reply #286 on: May 02, 2012, 05:58:53 PM »
Quote from: 1SaGing5 on May 02, 2012, 01:37:27 PM
imbes na emitter resistor naging collector resistor ;D
pero balewalain natin yan, sundin nalang natin si rod ;D

ang concern ko ay, pwede ba magkasama lahat ng collectors? wouldn't it mess up with the circuit?


Quote from: 1SaGing5 on May 02, 2012, 01:37:27 PM
imbes na emitter resistor naging collector resistor ;D
pero balewalain natin yan, sundin nalang natin si rod ;D

ang concern ko ay, pwede ba magkasama lahat ng collectors? wouldn't it mess up with the circuit?


CFP sziklai pair ang output circuit kaya nasa collector yung resistor . yung pareho sa sakura. darlington pair yun nasa emitter ang resistor.
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We use negative feedback in audio amplifiers to stabilize the gain, increase the bandwidth,lower the output impedance and lower the non-linear distortion.

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Re: P3A amp 100 watts Help
« Reply #287 on: May 02, 2012, 06:00:51 PM »
^ agree.
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Offline 01110011

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Re: P3A amp 100 watts Help
« Reply #288 on: May 02, 2012, 06:01:52 PM »
salamat sis, matest ko na bukas yung P3A ko :)

inisolate ko na din yung collector ng output ;D
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Offline mund24

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Re: P3A amp 100 watts Help
« Reply #289 on: May 02, 2012, 08:21:17 PM »
Quote from: gorex69ers on April 30, 2012, 12:43:09 AM
nasira isang channel ng p3a amps ko ang left channel. nag humming bigla. pinake alaman kasi habang wala ako kahapon. nilagyan ng 2 car speaker na 4 ohms sa left channel lahat kinabit nakaparallel 2 = 4ohms nag overload. tapos tinodo pa volume. baka sira na output nito. bukas troubleshooting.
saklap naman neto!
kung ako yan, badtrip na badtrip ako sa taong yun! pakialamero/ra
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Offline Disabled

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Re: P3A amp 100 watts Help
« Reply #290 on: May 02, 2012, 08:24:44 PM »
^ di natin yan maiiwasan. lalo na dito sa amin, hala cge distort lang hanggang sa magka baranggayan na ;D ;D ;D
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Offline mund24

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Re: P3A amp 100 watts Help
« Reply #291 on: May 02, 2012, 08:29:12 PM »
Quote from: Ryu on May 02, 2012, 08:24:44 PM
^ di natin yan maiiwasan. lalo na dito sa amin, hala cge distort lang hanggang sa magka baranggayan na ;D ;D ;D
LOL.........ako pihit agad ng volume if may clipping or distorted na yung amp ko! :)
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Offline 01110011

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Re: P3A amp 100 watts Help
« Reply #292 on: May 02, 2012, 08:30:52 PM »
Quote from: Ryu on May 02, 2012, 08:24:44 PM
^ di natin yan maiiwasan. lalo na dito sa amin, hala cge distort lang hanggang sa magka baranggayan na ;D ;D ;D
same here ;D ;D , wala lang baranggayan, diretso batuhan ;D naiinis ako sa kanila kasi kahit hapon napakalakas yung sound nila, pabalik-balik pa yung kanta, nakakainip  >:( ;D
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Offline Mhavskie

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Re: P3A amp 100 watts Help
« Reply #293 on: May 02, 2012, 09:33:55 PM »
Quote from: 1SaGing5 on May 02, 2012, 08:30:52 PM
same here ;D ;D , wala lang baranggayan, diretso batuhan ;D naiinis ako sa kanila kasi kahit hapon napakalakas yung sound nila, pabalik-balik pa yung kanta, nakakainip  >:( ;D
mag triamp kana sis tapatan mo sounds nila ;D ;D ;D
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Offline Johannah Aleksandria

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Re: P3A amp 100 watts Help
« Reply #294 on: May 02, 2012, 10:46:17 PM »
Quote from: 1SaGing5 on May 02, 2012, 02:20:05 PM
ok lang ba na common yung lahat ng collectors? o kailangan pa iisolate sa heatsink yung collector ng transistor?

Ok lang nman na ilagay sa emitter ang resistor, lagyan mo ng resistor ang emitter ng driver (4.7ohms) papunta sa output. Yung collector mo ngayon ay direkta na sa output. Isipin mo ngayon na ang output mo ay collector, pag di sya isolated sa heatsink, ang output mo ay nasa heatsink. Napaka-unsafe ng setup mo at cguradong mabilis magka-short sa chassis na mlamang connected to ground. Tingnan mo yung pic ng amp ko na nai-post at makita mo kung paano ginawa.
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Offline jlester87

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Re: P3A amp 100 watts Help
« Reply #295 on: May 02, 2012, 11:34:39 PM »
Revised layout... nilapit ko yung q3, pangit lang nadagdagan ng jumper, suggest lang mga sir...
Ok sana kung may magtest sa oscilloscope gaya ng kay sakis(diyaudio) para malaman natin kung kayang makipagsabayan ng layout na ito...

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Offline Mhavskie

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Re: P3A amp 100 watts Help
« Reply #296 on: May 03, 2012, 12:07:00 AM »
^sis wag ka na mainis sa jumper, ganito dapat yung width para cute si jumper :)

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Offline 01110011

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Re: P3A amp 100 watts Help
« Reply #297 on: May 03, 2012, 12:45:37 PM »
Quote from: jlester87 on May 02, 2012, 11:34:39 PM
Revised layout... nilapit ko yung q3, pangit lang nadagdagan ng jumper, suggest lang mga sir...
Ok sana kung may magtest sa oscilloscope gaya ng kay sakis(diyaudio) para malaman natin kung kayang makipagsabayan ng layout na ito...


sis ano problem nung unang layaout?
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Offline Engr. Dacuycoy

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Re: P3A amp 100 watts Help
« Reply #298 on: May 03, 2012, 01:07:53 PM »
 ;D ;D ;D
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Offline Mhavskie

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Re: P3A amp 100 watts Help
« Reply #299 on: May 03, 2012, 01:14:38 PM »
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Re: P3A amp 100 watts Help
« Reply #299 on: May 03, 2012, 01:14:38 PM »
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