1500w power amp. 5 1 4

1500w power amp.

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1500w power amp.

Post by daltanics on Mon Nov 28, 2011 11:56 pm

[img][/img]

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Re: 1500w power amp.

Post by samiel on Thu Dec 08, 2011 7:47 pm

sir may mabibili bang kit na para sa ganyang amplifier

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Re: 1500w power amp.

Post by Electro on Fri Dec 09, 2011 9:32 am


master daltanics. ilang speaker kailangan ilagay diyan ?

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Re: 1500w power amp.

Post by mult on Mon Dec 12, 2011 10:16 pm

parang sakura ito na 735

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Re: 1500w power amp.

Post by fifteenwatts on Tue Dec 13, 2011 12:49 pm

hindi siguro aabot ng 1k watts yan siguro mga 500 lang

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Re: 1500w power amp.

Post by daltanics on Fri Dec 30, 2011 8:27 am

wala itong kit mabibili ikaw nalang layout..aabot yan kahit anong gusto mong wattage e double molang mga output trans.

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Re: 1500w power amp.

Post by daltanics on Fri Dec 30, 2011 8:40 am

[img][/img] ito hindi gaanong marami ang pisa. 150 watts amp.

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Re: 1500w power amp.

Post by Electro on Fri Dec 30, 2011 3:18 pm



kusuga diay ani oy. pilay gastos tanan ani master kong moassembol ko

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Re: 1500w power amp.

Post by arkin on Fri Dec 30, 2011 6:41 pm

magkano ba power supply nyan?ang layo yata sa 1500w nyan.parang d ko yata natutunan sa schol,na paralel of transistor can increase power output.khit sa mga website na npasok ko,the more output trans,can cause instability of the output.ang pagdagdag ng trans sa output ay pampatibay lng,hindi pampalakas.

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Re: 1500w power amp.

Post by fifteenwatts on Tue Jan 03, 2012 1:35 pm

arkin wrote:magkano ba power supply nyan?ang layo yata sa 1500w nyan.parang d ko yata natutunan sa schol,na paralel of transistor can increase power output.khit sa mga website na npasok ko,the more output trans,can cause instability of the output.ang pagdagdag ng trans sa output ay pampatibay lng,hindi pampalakas.

amps with output above the 1k watt range can have power supplies ranging from 5,000 pesos to 10,000 pesos power suplay pa lang yan ha!
[citation needed]

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Re: 1500w power amp.

Post by renelachica88 on Sat Feb 04, 2012 9:05 am

As tested with a power transformer rated at 40 amps (quite big) @ 100-0-100 VAC, three 35 amps 400V bridge diode connected in parallel and 16 pcs. 10,000 uF 80 volts (eight in series-parallel connection for every rail) producing 40,000uF 160VDC Filter for every rail. Test frequency from audio generator fed to the input of the amplifier is 100 Hz at 1 VRMS. Dummy load is 4 ohms 2000 watts (homebrew) connected at the speaker terminal of the amplifier.
Result from a multi-tester set at 250 VAC connected in parallel to the dummy load is 110 VAC. Please remember that it is an average reading and we have to convert it to RMS voltage (divide by 1.414).
RMS voltage now is 77.793 volts. Now we have to know the Power rating of the amp base from the ohm's law formula P = E squared over R then we can substitute our given numbers: P = (77.793 X 77.793) / 4 = 1,513. Power therefore produced by the amp is 1,512 watts RMS. Hope this will help.

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Re: 1500w power amp.

Post by arkin on Sat Feb 04, 2012 1:18 pm

Rolling Eyes Laughing Very Happy sory!dko tiningnan power suply.with 130volts dc average power suply,@ 4ohms load,aabot yan,i agree.but doubling powr trans,and boost the output to higher level?disagree ako dyan.

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Re: 1500w power amp.

Post by renelachica88 on Sat Feb 04, 2012 4:41 pm

In the given example of an amplifier having a power of 1512 watts on a 4 ohms load and let us say we double the number of transistors we could get extra power - then you are correct that the power output will not get higher. The Safe Operating Area of the transistor is only enhanced. In the design as tested wherein Current (I) = Power (P) / Voltage (E) [...Ohm's Law again], we will try to know the current passing to the dummy load. I = 1512 / 77.793 = 19.436 Amperes. In the given example above and our load is four ohms - we'll try to connect in parallel another four ohms producing two ohms dummy load. If we will consider that the room temperature is 25 degrees Celsius, the voltage is stable and the current is sufficient to drive the amp therefore the computation now is Power = E squared / R = (77.793 X 77.793) / 2 = 3,026 watts. If the current in the four ohms load is 19.436 Amperes then in our two ohms load it will go up to 38.872 Amperes. Now doubling the trannies will carry the extra current induced by the two ohms load. The Power Output at two ohms load now is 3 KW. Forced air cooling and huge heatsink should be adopted because in this region lots of heat are being generated. In actual test on a residential area from household convenience outlet these computations would be different because of the power loss from the utility line and should not be carried out. Hope this will help.

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Re: 1500w power amp.

Post by fifteenwatts on Sun Feb 05, 2012 7:33 pm

+1 sir galing ah
pls. note also na kailangan nyo ng mataas na voltage para ma achieve ang 1.5k watts at isang sakong output trannies para jan Very Happy

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Re: 1500w power amp.

Post by longthrow on Mon Feb 06, 2012 8:46 am

renelachica88 wrote:Result from a multi-tester set at 250 VAC connected in parallel to the dummy load is 110 VAC. Please remember that it is an average reading and we have to convert it to RMS voltage (divide by 1.414).



actually, the meter reading is already the rms reading & root-mean-square is average.
true peak voltage can only be viewed then measured on a scope.

have you actually built it? Insanity Can Be Yours :-) 1,500W / 4 Ohms Power Amplifier

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