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# Sine wave Inverter Project

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a Class D amplifier schematic would be fruitfull

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Since Class D Ampilifiers are cold amps or have 100% theoratical efficiency with upto 94% practical efficiency . it is very much suitable for a sine wave inverter design , however i was able to look up a site which is open source class D Amplfier Site

http://hem.passagen.se/johanps/index.htm

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To make 230VAC with a sinewave, the output of the amplifier must be 650Vp-p.
So it is practical to make a class-D amplifier with a low output voltage but a high output current then stepup the voltage with a transformer.

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please take a look at the link i posted above , i think it is a simple and effective design. but i can't find how much power it is delivering

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please take a look at the link i posted above , i think it is a simple and effective design. but i can't find how much power it is delivering

The archive notes say 102W into 8 ohms or 180W into 4 ohms. It quickly got very warm with 180W output and so the mosfets need better heatsinking.
Note that its power supply is positive and negative 50VDC. About eight 12V car batteries in series would power it.
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hmm i think probably it would be nice to use a bigger 12V battery and use a DC-DC Converter

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hmm i think probably it would be nice to use a bigger 12V battery and use a DC-DC Converter

Then you are making a class-D car amplifier that doesn't have as much power as the ones you can buy.
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Cannot we shape the wave of a square wave output to sine wave

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I mean to say the output from the transformer that is square wave. and it is shaped to sine wave

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Cannot we shape the wave of a square wave output to sine wave?

Sure, you can use a couple of RC lowpass filters or an LC tuned circuit. Then the load must be a high impedance so no power can be drawn.
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Can you suggest a circuit for the waveshaper , that you were saying using the RC filters

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and how powerful they should be to withstand 220V ac at the output and a power of 500W

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Can you suggest a circuit for the waveshaper , that you were saying using the RC filters

I said that if a wave-shaper is used at the output then the load must be a high impedance which takes no power output.
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So can we make multiple cascaded Class D amplfier IC you suggested and make it  upto 1000W or the Class D amplfier i gave , can we ???

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So can we make multiple cascaded Class D amplfier IC you suggested and make it
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So making a transistorized Class D amplifier can be a good choice , the one i showed you

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Cascaded can be done in a transistorized circuit

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Audio Guru Please i need your help in the Stereo power amp 2x40W = 80W the topic i have started . i have done the PCB and its layout , a schematic from the PCB layout can be really appreciated , please , thanks  ::)

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So kindly loook in the Thread regarding Stereo Power amp 2x 40W = 80W , please and help on the schematic

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