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Author Topic: Simple PWM Class d Amp 200w  (Read 7849 times)

Offline BhongTech

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Re: Simple PWM Class d Amp 200w
« Reply #40 on: March 15, 2012, 07:07:54 AM »
ok thanks sir.
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Re: Simple PWM Class d Amp 200w
« Reply #40 on: March 15, 2012, 07:07:54 AM »

Offline flyback

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Re: Simple PWM Class d Amp 200w
« Reply #41 on: March 15, 2012, 07:56:50 AM »
sir bhong baka pwede ym sandali ty
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Re: Simple PWM Class d Amp 200w
« Reply #41 on: March 15, 2012, 07:56:50 AM »

Offline n0th1n6

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Re: Simple PWM Class d Amp 200w
« Reply #42 on: March 15, 2012, 02:17:54 PM »
Maraming salamat mga sis sa tip. Try ko ang pinakuluang ferrite core. Yung dati kasi binabad ko sa thinner, wala nangyari. Matatag pa rin ang kapit hehehe.

BTT:

Sa sabado pwede naman itong magawan ng PCB :D. Back to laser method muna kasi walang presynthesized
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Re: Simple PWM Class d Amp 200w
« Reply #42 on: March 15, 2012, 02:17:54 PM »

Online fantom_mayonaise

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Re: Simple PWM Class d Amp 200w
« Reply #43 on: March 15, 2012, 02:47:22 PM »
Sir Noli :

Pag di bumuka ang nilagang tulya nyo, try mo din acetone. yun ang gamit naming antidote sa superglue
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Re: Simple PWM Class d Amp 200w
« Reply #43 on: March 15, 2012, 02:47:22 PM »

Offline Mhavskie

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Re: Simple PWM Class d Amp 200w
« Reply #44 on: March 15, 2012, 03:02:47 PM »
ask ko lang meron akong iron powder core yellow yung galing sa mga old SMPS yan lang meron ako eto yung sukat,

OD: 23.1mm

ID: 13.85mm

height: 9.6mm

ilang uH ba at ilang turns at anu yung gauge ng magnet wire?? pwede ba fer
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Re: Simple PWM Class d Amp 200w
« Reply #44 on: March 15, 2012, 03:02:47 PM »

Offline n0th1n6

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Re: Simple PWM Class d Amp 200w
« Reply #45 on: March 15, 2012, 03:08:01 PM »
Quote from: fantom_mayonaise on March 15, 2012, 02:47:22 PM
Sir Noli :

Pag di bumuka ang nilagang tulya nyo, try mo din acetone. yun ang gamit naming antidote sa superglue

Ay sir marami ako nyan sa aking kit :D. Subukan ko yan sir sa sat.
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Offline ™(◣◢)™

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Re: Simple PWM Class d Amp 200w
« Reply #46 on: March 18, 2012, 10:50:31 AM »
class d, matry nga.


sis, pwede po eto ibridge?
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Offline chinokscapsighter

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Re: Simple PWM Class d Amp 200w
« Reply #47 on: March 18, 2012, 01:48:27 PM »
share kolang ibat ibang design ng PCB layout by Ejtagle-Diego Salas

http://www.4shared.com/rar/MoSFdYkp/CLASS_D_200W_2.html?
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Offline Disabled

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Re: Simple PWM Class d Amp 200w
« Reply #48 on: March 18, 2012, 02:05:02 PM »
sakto eto na isusunod, papatayin lang ako nito sa mosfet.
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Offline flyback

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Re: Simple PWM Class d Amp 200w
« Reply #49 on: March 19, 2012, 07:48:01 AM »
batet po kayu papatayin ng mosfet sis mura lang naman yan sa newport eh,,paktay ka kung sumabog ang mosfet wehehehe
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Offline Disabled

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Re: Simple PWM Class d Amp 200w
« Reply #50 on: March 19, 2012, 07:52:56 AM »
hehe kaya nga ;D
nasa probinsya po ako.
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Offline flyback

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Re: Simple PWM Class d Amp 200w
« Reply #51 on: March 24, 2012, 07:12:00 PM »
ako nasa province din eh.... wala pa ba nakagawa post ako ng video to prove that this is working circuit
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Offline SexyPaint

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Re: Simple PWM Class d Amp 200w
« Reply #52 on: March 25, 2012, 12:20:33 PM »
pa sub ako....
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Offline abeTIR

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Re: Simple PWM Class d Amp 200w
« Reply #53 on: March 26, 2012, 07:45:56 AM »
Thanks Irvyn...err...Flyback ;D just got your message.
Andito lang pala ito  ;D

Sound impression naman po diyan sa mga nakagawa na. How was the mid and highs?


thanks!
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Offline flyback

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Re: Simple PWM Class d Amp 200w
« Reply #54 on: March 26, 2012, 07:51:50 AM »
Re test ko po ulit with video tinanggal ko na kasi mga fets,,natabi na kasi ang kit na ito tapos na kasi na tikman ,,,,so far sa test ko malinis cya walang ingay bagay pang bahay
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Offline abeTIR

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Re: Simple PWM Class d Amp 200w
« Reply #55 on: March 26, 2012, 08:07:57 AM »
^sis, natry mo ba yang gamit MPSA at BCs trannies ? Parang gusto ko rin yang subukan AFAIK ang MPSA ay mataas ang slew rate at ang BC naman mataas ang Hfe..I wonder kung may pagkakaiba ito sa performance compared diyan sa BDs at 2Ns... ;)
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Offline flyback

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Re: Simple PWM Class d Amp 200w
« Reply #56 on: March 26, 2012, 08:13:18 AM »
d ko na try sis but you can experiment on it just be careful sa pins para safe,,yung DB kasi medyu mag heat kasi at madali lang lagyan ng heatsink so far so good naman
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Offline 01110011

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Re: Simple PWM Class d Amp 200w
« Reply #57 on: March 26, 2012, 12:02:34 PM »
subscribing
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Offline abeTIR

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Re: Simple PWM Class d Amp 200w
« Reply #58 on: March 31, 2012, 11:47:46 AM »
Here's my take on this amp..just managed to complete the construction this morning.Unfortunately pauwi ako ng probinsiya mamaya, babaunin ko muna doon ko na lang i-test.. ;D




My first attempt on class D  :D

BTW sis flyback meron ka bang revision ng PCB nito? TY!
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Offline mund24

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Re: Simple PWM Class d Amp 200w
« Reply #59 on: March 31, 2012, 11:55:20 AM »
ganda nyan sis!

+1
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Re: Simple PWM Class d Amp 200w
« Reply #59 on: March 31, 2012, 11:55:20 AM »
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