Real Ruff Draft of FSW Inverter

[ibedonc]

http://www.otherpower.com/images/scimages/348/fswinverter.pdf

this give you a idea were I am going , the 60hz sine ref. works , I am waiting on parts

to start building .

I will be proto'ing the LM4651 to make sure it works , I have come up with a feedback

loop to control the voltage output level to get it at 240/120

[RobD]

Hi Don,

A couple of questions on the schematic.

What's the signal coming out of the 4651 a pulse steam or a sine wave? Are you using it to develop the pulse train?

You're making a sine wave with the 2035 then converting it with the class D amp back to a pulse stream. The 2110 driver doesn't need a high power input to drive the IGBT transistors as far as I can see.

Instead of converting back and forth maybe you might want to look into just developing a simulated sine wave to drive the 2110's. I can  run you out a small microprocessor that I programed to do that.

Give me a call or let me know.

RobD

[ibedonc]

the 2035 is the 60hz sine , the LM4651 is a CLASS D amp chip and it's output is a PWM

but I do not think I will use the LM4651 , I have working a LM555 ramp gen. -->>  TL082 --> LM339 PWM circuit , I will have a schematic soon, was working on it last nite . Using the LT CLASS D amp schematic as a ref.

http://www.crestaudio.com/media/pdf/lt_schematic.pdf

[ibedonc]

ok , I am not using the LM4651 , using TL082 op-amps , they are a lot cheaper