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Author Topic: Simple PWM Class d Amp 200w  (Read 7848 times)

Offline DJFEL

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Re: Simple PWM Class d Amp 200w
« Reply #20 on: March 13, 2012, 08:04:29 PM »
sub nice to ha...
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dj fel on the mix

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Re: Simple PWM Class d Amp 200w
« Reply #20 on: March 13, 2012, 08:04:29 PM »

Offline flyback

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Re: Simple PWM Class d Amp 200w
« Reply #21 on: March 13, 2012, 08:13:15 PM »
gamitin nyu ee core center leg with air gap 1 to2 mm with bobbin #18 magnet wire 22 turns
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Re: Simple PWM Class d Amp 200w
« Reply #21 on: March 13, 2012, 08:13:15 PM »

Offline mund24

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Re: Simple PWM Class d Amp 200w
« Reply #22 on: March 13, 2012, 10:02:19 PM »
Quote from: flyback on March 13, 2012, 08:00:22 PM
d aabot ng 1k yata yung 2 channel nyan d kasi ako nag total sa mga diy ko
yung mga EE core 1uf 250v caps makukuha mo sa pc psu

try nyu tingnan sa new port price
ex:
TL074CN-O        14.00
IRF540N        50.00
IRF9540        50.00
BD139        10.00
BD140        10.00

@ sis Kasamiko pls share you working lcr meter pls accurate po ba sya

wow nice yung BOM nya sir! friendly! +1 :)
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Re: Simple PWM Class d Amp 200w
« Reply #22 on: March 13, 2012, 10:02:19 PM »

Offline macky

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Re: Simple PWM Class d Amp 200w
« Reply #23 on: March 14, 2012, 05:05:52 AM »
@flyback,

sis may malinaw ka bang schema? mura nga ang BOM, makabili pagluwas ko ng quiapo
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Re: Simple PWM Class d Amp 200w
« Reply #23 on: March 14, 2012, 05:05:52 AM »

Offline amadjo01

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Re: Simple PWM Class d Amp 200w
« Reply #24 on: March 14, 2012, 11:08:32 AM »
makiki sali po,, interested rin sa audio class d amps.. :D :D :D
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Re: Simple PWM Class d Amp 200w
« Reply #24 on: March 14, 2012, 11:08:32 AM »

Offline Ikasamoko

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Re: Simple PWM Class d Amp 200w
« Reply #25 on: March 14, 2012, 11:26:03 AM »
Quote from: flyback on March 13, 2012, 08:00:22 PM
d aabot ng 1k yata yung 2 channel nyan d kasi ako nag total sa mga diy ko
yung mga EE core 1uf 250v caps makukuha mo sa pc psu

try nyu tingnan sa new port price
ex:
TL074CN-O        14.00
IRF540N        50.00
IRF9540        50.00
BD139        10.00
BD140        10.00

@ sis Kasamiko pls share you working lcr meter pls accurate po ba sya


Salamat sa mga presyo...;D

So far accurate naman yung LCR+ESR meter ko...ilang uH ba yung coil dapat? pwede ako experiment dito then share ko if ilang turns sa particular core na gamit ko..
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Offline mund24

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Re: Simple PWM Class d Amp 200w
« Reply #26 on: March 14, 2012, 12:05:57 PM »
Quote from: Kasamiko on March 14, 2012, 11:26:03 AM

Salamat sa mga presyo...;D

So far accurate naman yung LCR+ESR meter ko...ilang uH ba yung coil dapat? pwede ako experiment dito then share ko if ilang turns sa particular core na gamit ko..
thats good for us sir!

kalimitan din kasing ka ELAB walang LCR dahil medyo pricey din!

we will wait your post for the coil  :D :D :D

+1
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Offline flyback

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Re: Simple PWM Class d Amp 200w
« Reply #27 on: March 14, 2012, 12:38:08 PM »
22uh 5 to 10 ampere
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Offline Ikasamoko

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Re: Simple PWM Class d Amp 200w
« Reply #28 on: March 14, 2012, 01:51:35 PM »
panu ko makukuha yung amperes? depend ba yun sa size ng wire at core material?
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Offline flyback

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Re: Simple PWM Class d Amp 200w
« Reply #29 on: March 14, 2012, 03:07:46 PM »


Note: inductor and output filter is not included on schematic just follow the values on the pcb i posted lately
ex:bc337,mpsa92 was replace by bd139,140
    mpsa92/42 replace with 2n5401,5551
   and don't forget the ground jumper bottom ,,kung makalimutan mo yan sabog ang fets
   ignore lang yung C1,C2,R18,R23,R24 for experiment purposes lang yun kaya wala value

@Kasamiko pls check pm ty
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Offline Disabled

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Re: Simple PWM Class d Amp 200w
« Reply #30 on: March 14, 2012, 05:23:22 PM »
^ wow, way much cheaper ;D
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Offline macky

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Re: Simple PWM Class d Amp 200w
« Reply #31 on: March 14, 2012, 05:29:10 PM »
Quote from: flyback on March 14, 2012, 03:07:46 PM


Note: inductor and output filter is not included on schematic just follow the values on the pcb i posted lately
ex:bc337,mpsa92 was replace by bd139,140
    mpsa92/42 replace with 2n5401,5551
   and don't forget the ground jumper bottom ,,kung makalimutan mo yan sabog ang fets
   ignore lang yung C1,C2,R18,R23,R24 for experiment purposes lang yun kaya wala value

@Kasamiko pls check pm ty

thanks! points sayo sis! :D
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Offline n0th1n6

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Re: Simple PWM Class d Amp 200w
« Reply #32 on: March 14, 2012, 05:46:03 PM »
quite OT:

Mga sis, pano ba ma salvage ang ee core sa psu ng di nababasag (pagtanggal sa pagkaka glue)?
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Offline flyback

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Re: Simple PWM Class d Amp 200w
« Reply #33 on: March 14, 2012, 05:50:55 PM »
babad nyu sa thinner at dahadahan pukpukin wag lakasan baka mabasag post ko mamaya yung core na ginamit ko
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Offline sp0c0

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Re: Simple PWM Class d Amp 200w
« Reply #34 on: March 14, 2012, 06:07:29 PM »
pm sent to sis flyback..
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Offline flyback

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Re: Simple PWM Class d Amp 200w
« Reply #35 on: March 14, 2012, 07:24:13 PM »
Ferrite EE/EI core from  different spms


Shot at 2012-03-14


Shot at 2012-03-14


Shot at 2012-03-14


Shot at 2012-03-14


Shot at 2012-03-14
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Offline Engr. Dacuycoy

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Re: Simple PWM Class d Amp 200w
« Reply #36 on: March 14, 2012, 09:17:49 PM »
Quote from: n0th1n6 on March 14, 2012, 05:46:03 PM
quite OT:

Mga sis, pano ba ma salvage ang ee core sa psu ng di nababasag (pagtanggal sa pagkaka glue)?

pakuluan mo sa tubig hanggang maghiwalay
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Offline Ikasamoko

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Re: Simple PWM Class d Amp 200w
« Reply #37 on: March 14, 2012, 09:30:51 PM »
at higupin ang sabaw..;D ;D

Up naman panu malaman ang wire na dapat gamitin?
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Offline BhongTech

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Re: Simple PWM Class d Amp 200w
« Reply #38 on: March 14, 2012, 10:30:40 PM »
Quote from: flyback on March 14, 2012, 12:38:08 PM
22uh 5 to 10 ampere
nasa #17 to #16 yung size ng magnet wire ba nito sir?
+1 for sharing this amp!
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Offline flyback

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Re: Simple PWM Class d Amp 200w
« Reply #39 on: March 15, 2012, 07:04:52 AM »
#18 po sir
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Re: Simple PWM Class d Amp 200w
« Reply #39 on: March 15, 2012, 07:04:52 AM »
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