hi.
I need to hi power amplyfier schematic diagram(about 200w R.M.S \13.2v to48v dc/dc)pleas help me find it.thanks

 

I'm getting tired of these vague requests, please provide more information!

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its for my car cd player.i have 4 hi power speaker but his amp is low power.

 

If you cant even spell amplifier, then there's no way youll be able to build a 13.2v 200w RMS car amp.

 

Yes, they are highly comlicated to make sucessfully, and can be bought new quite cheaply.

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Angry!? I'm absolutely electrolytic!

Will have to make do with myspace now I guess...

 

I hope you won't connect the four speakers in parallel to the amplifier. If the speakers are each 4 ohms then the amplifier will get a load of 1 ohm which is like a dead short.

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Uncle $crooge

 

You are asking for a complicated circuit that will require a bit of effort to construct, and then to make it work properly. I would recommend going to walmart, unless you are quite adept at making circuits work. By just asking this type of question, I would say wally world would be the way to go.

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Why dont you do what I just did, go to Google and type "200W audio amplifier schematic", eh?
Guess what happened, Google said:

Results 1 - 10 of about 3,090,000 for 200w audio amplifier schematic. (0.31 seconds)

Not bad eh?

JimB

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In Google I typed, "200w audio amplyfire schematic" and it said, "Huh?" then it corrected my spelling mistake.

To make such a high power with only 12V to 14V from a car battery, you also need to make a powerful stepup the voltage power supply.

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Uncle $crooge

 

Or use a step-up transformer on the output, but that would be big and bulky and expensive, also it'd introduce distortion.

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If the output impedance of a transformer is 4 ohms, then its input impedance for 200W and a 13V battery is only 0.075 ohms. Wind the primary with copper pipe instead of wire. You won't get any bass unless the core is as big as the car.

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Uncle $crooge

 

Well, Hero999 did say it would be big and bulky....
With the copper pipe you could use a liquid coolant. You could also use it to cool the 1000 parallelled MosFets.
Maybe he needs to get a bigger car? A hummer maybe.

 

Nobody else will have one like it.

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Uncle $crooge

 

A 18 Wheeler truck!

 

Actually, I'm somewhat entertained by them anymore these days.They are humorous and confirm that I am normal and productive. Think of it as your glass being half-filled while theirs is half-empty! Soon I'll have to wear a helmet and protective clothing as I fall out of my chair from laughter.

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