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neutron
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« on: March 02, 2009, 03:38:52 PM » |
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nakalkal ko ulit sa mahiwaga baul hehehe siguro mga 6years ago na ito na binabalak balak gawin 100w x 2 channel siguro ito pero ano kaya ang supply nya   |
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The Philippine Electronics and Technology Forum
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« on: March 02, 2009, 03:38:52 PM » |
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Woots29
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« Reply #1 on: March 02, 2009, 03:42:01 PM » |
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ah may nakita akong ganyan sa dagupan. 400 watts
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danny
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« Reply #2 on: March 02, 2009, 03:45:32 PM » |
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ah may nakita akong ganyan sa dagupan. 400 watts
paki post ng schematic woots para magawa na ang nakalkal sa baul heheh  |
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danny
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Siramiko
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« Reply #3 on: March 02, 2009, 03:48:13 PM » |
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+25V 0 -25V
chasses --- ground(earth)
+25 --- +
-25 --- -
line in --- in
out --- speaker
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I shall return
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neutron
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« Reply #4 on: March 02, 2009, 05:05:28 PM » |
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uy OK thanks, mga 3 Amps na PSU pwede na siguro ano
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zer0w1ng
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« Reply #5 on: March 02, 2009, 05:23:01 PM » |
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uy OK thanks, mga 3 Amps na PSU pwede na siguro ano
I = E/R = 25/8 = approx 3A 3A is enough for 1 channel. But this IC has 2 channels, so 6 amps is needed. |
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BATHALA
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« Reply #6 on: April 02, 2009, 06:08:53 PM » |
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madalas po supply voltage is 12volt for amplifier.
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eveready battery
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Garbage In Garbage Out.
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« Reply #7 on: April 02, 2009, 06:16:39 PM » |
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madalas po supply voltage is 12volt for amplifier.
depende common lang ang supply na 12V due to mga op amps single supply(sa automotive 12V yung lead acid battery),pero pag split supply +/-12V or even higher to achieve more power sa mga high power na audio amplifier. |
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piona
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earth - evils = heaven
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« Reply #8 on: April 02, 2009, 07:22:26 PM » |
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P = VV/R
@ 100W pk-pk, 8 ohms speaker (1CH)
V = 28.28 volts or 30 volts
= +/-15 Volts split supply
I = V/R
= 3.75 Amps
@ 2CH
I = 3.75 (2)
= 7.5 Amps
For commercial local transformer allowance of X2 or X3 para walang drop at hi volume
7.5 X 2 = 15 Amps
AC to DC transformation = AC X 1.414 = DC volt ;
Transformer Sec. V = 15 / 1.414 = 10.6 ---= 12V
= 12-0-12 transformer secondary voltage.
.....pag rms naman yan convert nyo lang to rms yong peak-to-peak voltage,
pero parang pk-pk lang rating ng amps na yan .
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love without accomplishing the laws, is complicated - sshrekk
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neutron
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« Reply #9 on: April 02, 2009, 10:34:04 PM » |
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yikes so kailangan ko ng 12-0-12 15Amps na PSU!
siguro nga pk2pk na itong power nya at di RMS
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kirk simone
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« Reply #10 on: April 02, 2009, 10:57:27 PM » |
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try mo muna sa 12volts
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shake it .....
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neutron
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« Reply #11 on: April 09, 2011, 02:31:23 PM » |
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...so far diko pa rin na tra-tray  pwede kaya yung PSU ng PC? |
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Hengilbert
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« Reply #12 on: April 09, 2011, 04:00:18 PM » |
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talagang 100 watts po ba yan? anu kaya laman niyan? |
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KEEP SMILING! EVEN THOUGH YOU HAVE PROBLEMS
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Woots29
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« Reply #13 on: May 01, 2011, 06:53:04 AM » |
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nagawa na kaya ito?  |
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tony
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leach amp afficionado
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« Reply #14 on: May 10, 2011, 07:36:56 PM » |
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+25V 0 -25V
chasses --- ground(earth)
+25 --- +
-25 --- -
line in --- in
out --- speaker
kung +/-25 ang rails, assuming pwedeng makakuha ng 48 volts peak to peak, 24volts peak, or 17 volts rms..... into 8ohm load, power is 36watts....low power lang yang module mo.... a 100va traffo is suitable.... |
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in electronics, as in everyday life, there is always a reason for doing things...and if you can not explain why you want to do what you are about to do, better stop or else magic smoke will come out, safety first is the best policy here.....kuha mo?
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spoco
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« Reply #15 on: May 10, 2011, 07:38:42 PM » |
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Positron E+
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You have No GOD?, You have No Peace of mind.
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« Reply #16 on: May 10, 2011, 07:52:56 PM » |
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yan ba yung STK? yung orig ata ng stk japan, pero madalas singapore ang binibenta dito sa pinas
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CHAMBA-LAKAS
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"Agta Maloko"pakmanyak
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« Reply #17 on: May 10, 2011, 07:58:03 PM » |
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may repair ako na ganito dati 24volts by 2 na trafo ang ginamit saka 4700uf na ecap aztig din ang tunog nito pero malakas uminit sa 4 ohms load dagdagan mo nalang ng heatsink saka lagyan ng fan sa ibabaw ng humaba ang buhay |
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“He who ignores discipline despises himself, but whoever heeds correction gains understanding"
-Good Guys Never Hide
PAPAPUNTA KA PALANG AT PAUWI NA SILA,ISA KA PARING BAKLA HEHEHE
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neutron
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« Reply #18 on: May 11, 2011, 10:15:52 AM » |
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nagawa na kaya ito? hindi pa eh, na misplace ko ulit hehehe naglipat kasi ng tirahan dito sa china |
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piona
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earth - evils = heaven
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« Reply #19 on: May 11, 2011, 06:08:57 PM » |
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ayos ipabasa nyo nalang ang nakasulat sa ic |
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love without accomplishing the laws, is complicated - sshrekk
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The Philippine Electronics and Technology Forum
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May 26, 2008, 04:01:50 PM
