Just proof I need to answer email after I sleep.
The idea in my mind was you were pumping a squarewave through a lowpass filter to make an approximation of grid power.
I see you are just using this as a control signal.
Lancaster wrote some articles about approximating a sinewave
_______________________________________________"Very lossy -- and not recommended."OK So....are you going to explain why or just leave me hangin'?Mike
Kirk McLoren <[EMAIL PROTECTED]> wrote:LossyVery lossy -- and not recommended.Don Lancaster was interested in efficient inverters and the least number of switches.I think his website is tiaja.comIf not he should be easy to Google-Kirk
Michael Redler <[EMAIL PROTECTED]> wrote:I posted this in another group and thought it might also benefit some of you since it's logical to think that some members are off-grid and synthesizing their own power signal.Mike
Michael Redler <[EMAIL PROTECTED]> wrote:Date: Thu, 1 Sep 2005 08:05:16 -0700 (PDT)
From: Michael Redler <[EMAIL PROTECTED]>
Subject: OpAmp Active Filter Synthesis
To: [EMAIL PROTECTED]
Earlier, we discussed inverter design and I suggested a 60Hz square wave with a fourth order band pass filter to capture the fundamental frequency and generate a 60Hz sinusoid.
Although I'm not committed to the square wave synthesis, I do believe that a good filter contributes to clean power, irrespective of your oscillator design.
So, I thought this might come in handy:
http://www.analog.com/Analog_Root/static/techSupport/designTools/interactiveTools/filter/filter.html
...my $.02
Mike
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