[sdiy] inverter probelms

[Ken Stone]

Of course, if you open up a large car audio amp, you will find that about
half of it is an inverter already. (Assuming a perfect world...) 12V into 4
ohms is 48W. Bridge is 96W. To get 150W or 300W or whatever, they need to
generate higher voltages inside.

Ken

>Nice idea but probably not practical. To get 120VAC you'd need a HUGE
>amp... the peaks of a 120V sine wave are about 160V.  That is a really big
>amp... and it would need an inverter of its own to get the supply 
>voltages. If it were
>linear, it would have a very low efficiency.
>
>The cost would probably exceed a good high efficiency inverter to start 
>with...
>
>H^) harry
>
>
>bill bigrig wrote:
>> howdy,
>>
>>  I would get a battery powered synth, sh-101, cz-101,
>> cs-01. buy a GIANT car stereo amp, set up a 60 cycle
>> sine wave in synth(down 2, or is it 3, octaves from
>> middle c - 2.5 cycles, turn up amp to get desired
>> voltage. maybe 2 amps output in parallel. That will
>> give you clean 60 cycle power. A couple dummy loads
>> for 8 or 4 ohms to keep the amps happy.
>> rig
>>
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>
>
_______________________________________________________________________
Ken Stone   sasami at hotkey.net.au or sasami at cgs.synth.net
Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
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