Author Topic: Power Amplifier OTL 30W by IC TDA2030 +Transistor (Read 1521 times)

Alexis1989 · « **on:** August 10, 2011, 08:37:14 AM »

tanong ko lang po?
ang mamahal po kasi ng mga speaker at wala akong makita na 30W 4ohms speaker
pede po ba akong gumamit d2 ng 20W 8ohms speaker?

d2 po galing ung circuit
http://www.eleccircuit.com/30w-amp-otl-by-tda2030-transistor/

Philippine Electronics Forum · « **on:** August 10, 2011, 08:37:14 AM »

Mayalin22 · « **Reply #1 on:** August 10, 2011, 12:53:06 PM »

gamit ka ng mas mataas na wattage not lower than 30 watts

Philippine Electronics Forum · « **Reply #1 on:** August 10, 2011, 12:53:06 PM »

Johannah Aleksandria · « **Reply #2 on:** August 10, 2011, 01:42:16 PM »

Using the supply line voltage variation to feed to current amplifier.

Philippine Electronics Forum · « **Reply #2 on:** August 10, 2011, 01:42:16 PM »

Alexis1989 · « **Reply #3 on:** August 10, 2011, 05:38:31 PM »

d po ba talaga pede babaan ung wattage mahal po kasi ung mga mataaas
d na kaya ng budget,
thanks po sa reply

Philippine Electronics Forum · « **Reply #3 on:** August 10, 2011, 05:38:31 PM »

Mayalin22 · « **Reply #4 on:** August 10, 2011, 05:46:34 PM »

kaysa naman masunog lang speaker mo hehehe mas lalong sayang.. try mo pero limit mo lang volume nya

Philippine Electronics Forum · « **Reply #4 on:** August 10, 2011, 05:46:34 PM »

Alexis1989 · « **Reply #5 on:** August 11, 2011, 05:54:21 PM »

pa help po ulet, alin po ba ang babaguhin ko dito para mavary ko ung volume?
fix po kasi ung sa schematic

Ikasamoko · « **Reply #6 on:** August 11, 2011, 07:15:18 PM »

alisin mo yung transistor at TDA2030 na lang...14 watts lang yata yun...pwede na yun..

Disabled · « **Reply #7 on:** August 11, 2011, 07:22:17 PM »

nakakapagtataka, gumana ba sayo TS??
ung sa akin dati kasi ayaw..

Mayalin22 · « **Reply #8 on:** August 11, 2011, 07:26:10 PM »

to hello world <-------------+
|
> Potentiometer
<--------------------------------------- to amplifier input
>
|
|
gnd

Alexis1989 · « **Reply #9 on:** August 11, 2011, 08:00:29 PM »

d ko pa po na susubukan e, kulang pa kasi gamit
tytry ko palang ng oscilloscope bukas sana gumana

tony · « **Reply #10 on:** August 14, 2011, 08:40:08 AM »

Quote from: Alexis1989 on August 10, 2011, 08:37:14 AM

tanong ko lang po?
ang mamahal po kasi ng mga speaker at wala akong makita na 30W 4ohms speaker
pede po ba akong gumamit d2 ng 20W 8ohms speaker?

d2 po galing ung circuit
http://www.eleccircuit.com/30w-amp-otl-by-tda2030-transistor/

pwede.....
gainclone ang tawag sa mga ganitong circuits.... int his case merong classB booster stage....pwede alisin sa circuit...

Mayalin22 · « **Reply #11 on:** August 14, 2011, 06:20:57 PM »

di ko napansin 8 ohms pala gagamitin mo

pwede nga

tony · « **Reply #12 on:** August 14, 2011, 06:59:18 PM »

^yup, just remove Q1/Q2, R6,C6, and R7.....replace R6/R7 with a jumper....

Disabled · « **Reply #13 on:** August 14, 2011, 07:27:25 PM »

will it increase the output master tony kung may transistors?

tony · « **Reply #14 on:** August 14, 2011, 07:30:31 PM »

not really, unless you run 4ohm loads......distortion from such operation is a penalty to be paid....that is why removing those components makes for a cleaner sounding amplifier....

the extra power you gain is barely perceptible anyway.....

Disabled · « **Reply #15 on:** August 14, 2011, 09:15:37 PM »

thank you master tony.. +1

Alexis1989 · « **Reply #16 on:** August 15, 2011, 09:53:11 PM »

Quote from: Hunter on August 11, 2011, 07:26:10 PM

to hello world <-------------+
|
> Potentiometer
<--------------------------------------- to amplifier input
>
|
|
gnd

sorry po medyo slow ako
san po ung hello world?

Ikasamoko · « **Reply #17 on:** August 15, 2011, 10:43:34 PM »

dyan papasok ang signal mo from source...

Alexis1989 · « **Reply #18 on:** August 16, 2011, 05:49:15 PM »

parang ganito po ba?
http://www.mediafire.com/imageview.php?quickkey=fscmjjo7p7f6jvt&thumb=6
I remove Q1/Q2, R6,C6, and R7
and replace R6/R7 with a jumper
then nilagyan ko ng variable resistor na 50K
tama po ba?

tony · « **Reply #19 on:** August 16, 2011, 05:53:19 PM »

you got it......

Philippine Electronics Forum · « **Reply #19 on:** August 16, 2011, 05:53:19 PM »

Author Topic: Power Amplifier OTL 30W by IC TDA2030 +Transistor (Read 1521 times)

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