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anyone know how to build it ? (200W Audio Amp)

#2
Do you have any experience building other circuits? Do you have all of the tools? Soldering iron, solder, clippers, etc.? What aspect are you stuck on?
 

audioguru

Well-Known Member
Most Helpful Member
#4
The (Indian?) circuit is about 40 years old and has horrible performance.
Amplifier circuits today are much better. England and America have excellent modern circuits.
 
#5
It won't last long enough to perform poorly. The rails are +/-24..36V, yet the TDA2030 is rated for no more than +/-18V.
 

audioguru

Well-Known Member
Most Helpful Member
#6
The TDA2030A has a max supply rating of 44V.
Half (non-bridged) of the "200W" amplifier circuit is shown on the datasheet of the TDA2030A. It is shown with a supply of 39V and its output at clipping into 4 ohms is 35W. 35W into 4 ohms is 33.5V p-p so the voltage loss is 39V - 33.5V= 5.5V.

When this amp is bridged then the current is doubled which will increase the max voltage loss. Maybe the loss at each amplifier side is 7V. Then if a 42V supply is used, each side has a max output swing of 35V p-p. The total swing into a 4 ohm speaker is 70V p-p which is 153W RMS.
Into 8 ohms the power will be a little more than half which is about 80W RMS.
 
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