xtra cool.  I am anticipating to see your results.  Assembler is great and
deadline is not a factor.  I'm working on healthy DC_DC component for this
project.  TX 1Meg$.

----- Original Message -----
From: "John Dammeyer" <johnd@AUTOARTISANS.COM>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Monday, February 17, 2003 1:35 AM
Subject: Re: [EE]: Inverter DC-AC


> Hi Ray,
>
> Give me a few more days to test the concept and I should be able to
> demonstrate a fairly efficient inverter circuit.  A simulation using
> Microsoft C and Excel to plot it looks really good.  PIC 16F87x series
> will do the job.  The code will be written for MPC but hand compiling
> into assembler if that's your flavour of choice would be fine too.
>
> Cheers,
>
> John Dammeyer
>
>
> Wireless CAN with the CANRF module now available.
> http://www.autoartisans.com/products
> Automation Artisans Inc.
> Ph. 1 250 544 4950
>
>
> > -----Original Message-----
> > From: pic microcontroller discussion list
> > [mailto:PICLIST@MITVMA.MIT.EDU] On Behalf Of Ray Gallant
> > Sent: Saturday, February 15, 2003 12:01 PM
> > To: PICLIST@MITVMA.MIT.EDU
> > Subject: [EE]: Inverter DC-AC
> >
> >
> > I would like to build a mostly sinusoidal power inverter for
> > my home forced air heating system now PIC controlled. The
> > application is similar to a UPS where the load is an 115VAC
> > motor and a few other small 115VAC loads. Available DC source
> > will be 1 or more 12 volts batteries similar to a car or
> > marine high duty for now. A PIC is involved for LCD, keypad,
> > Mains AC monitor, alarm, RS232 and other application but not
> > directly for the inverter yet. At this point, I have
> > developed a sinusoidal 24VAC p-p 60Hz with zero DC offset
> > from a matched pair of transistors (push/pull) and an ICL IC.
> > Things OK up to here! Now I need to increase this to 115VAC
> > at about 5 amps or more for a while. I was looking at a
> > Powerex transistor http://www.pwrx.com/pwrx/docs/kd224503.pdf
> >   Should I use a 24:115 transformer and amplify from there? I
> > have difficulty with the power stage, snubber and such. I
> > have large thyristors available if required. Any feedback is
> > much appreciated. Thanks {slewrate}
> >
> >
> >
> >
> >
> >
> > --
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> > mailto:piclist-unsubscribe-request@mitvma.mit.edu
> >
> >
>
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