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diy solar

Warpspeed's latest activity

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    Warpspeed replied to the thread Plugged hydro line?.
    Its obviously not tree roots or anything like that. But if its run dry for a while, there may be stuff starting to grow in any trapped...
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    Please cite the case, keeping in mind that the legal term "convicted" means: "having been declared guilty of a criminal offense by the...
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    Law enforcement, justice system, and government are now so totally corrupt, evil and distorted in EVERY country. Never having been...
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    I am in Australia so ticked can't vote. But if I was an American, I would definitely vote Trump.
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    Warpspeed replied to the thread Warpverter.
    The whole concept of feedforward is that all the inputs drive some algorithm or lookup table to produce as you say a "best guess" at...
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    Warpspeed reacted to rogerdw's post in the thread Solar pool pump with Like Like.
    Hi, yeah it had run successfully for a full three years and I only retired it when I got the Warpverter going and decided to use the...
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    Warpspeed replied to the thread Warpverter.
    If you use the output for control, then it becomes by definition feedback ! Getting a fast precise measurement of ac is always tricky...
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    Warpspeed replied to the thread Warpverter.
    Yup, you have this pretty well all figured out. Feedforward attempts to compensate for conduction losses and the resulting voltage droop...
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    Warpspeed replied to the thread Solar pool pump.
    @rogerdw connected up a treadmill motor directly to some series connected solar panels, and used a belt to drive the redundant ac motor...
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    Warpspeed replied to the thread Warpverter.
    You are quite right, just went out to the shed and had another look. The one I have here is an HSTS21-100. That is plenty for me, my...
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    Warpspeed replied to the thread Warpverter.
    Those D-C2T sensors appear to have a zero to four volt output, although that is not exactly clear. For the Warpverter feed forward...
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    With bamboo being the fastest growing plant on earth, supposedly, you might think about adding a second story on that shed, then, adding...
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    Warpspeed replied to the thread Warpverter.
    Reading through the instructions at the link: It says (cut and pasted): Ah so !
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    It depends on temperature. At some point the cells begin to gas. When that happens the cells begin to lose water through electrolysis...
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    Warpspeed replied to the thread Warpverter.
    Just had a look at my Hall sensor, its an HSTS21 with +/- 100 amp range. There are a whole family of these things, including a +/- 500...
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    Warpspeed replied to the thread Warpverter.
    Yes, the switching bridges draw current in half sinusoids from the bank of big electrolytics. Current from the battery is pretty much...
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    Warpspeed replied to the thread Warpverter.
    Dc can be measured very quickly at any time. Ac requires rectification and averaging, either in hardware or software, and averaging...
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    Warpspeed replied to the thread Warpverter.
    Output of Hall effect is direct dc, and its also sensitive to current direction (normal inverter load, versus battery back charging)...
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    Maybe there is a TO-247 version of that available ? Exact same die, but should have a lower thermal resistance and fatter legs. A...
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    Warpspeed replied to the thread Warpverter.
    Great stuff Roger ! I have been playing around with various experimental Warpverter circuits for many years. Voltage droop with load...
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