SMPS inverter voltage feedback methods

Hi,

For this circuit:

http://rocketresearch.nekrom.com/new/split%20phase%20240VAC%20inverter/240VAC%2060Hz%20split%20phase%20inverter.jpg

For measuring the "120VAC-x" signals at 200kHz bandwidth what would a good way to do this?

So far for possible methods I have, voltage divider to opamp/ADC,
optically isolated error amplifier, ie. FOD2741BSDV
http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail?name=FOD2741BSDVCT-ND

isolation barrier opamp (transformer based or capacitive):
ie. AD215BY (transformer chopper based)
http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail?name=AD215BY-ND

ie. ISO122 (capacitive coupled)
http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail?name=ISO122JP-ND

I think making a circuit like the AD215 might be the way to go, or maybe
just a simple resistor divider could work too.

cheers,
Jamie
.

Relevant Pages

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    ... So far for possible methods I have, voltage divider to opamp/ADC, ... optically isolated error amplifier, ie. FOD2741BSDV ... ie. AD215BY (transformer chopper based) ... I think making a circuit like the AD215 might be the way to go, ...
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  • Re: SMPS inverter voltage feedback methods
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