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  1. HANKMARS

    Modified sinewave to pretty good sinewave?

    What type of correct capacitor do you recommend? I am foreseeing a metal can, 2 screw lug terminals on the end, about the size of a pint milk container. Kinda like the one I changed out on the Inductively Coupled Plasma Emission Spectrograph. ICPES ( IC for short ). Came with its own shorting...
  2. HANKMARS

    Modified sinewave to pretty good sinewave?

    I inadvertently involved horse power, a unit that I intentionally try to avoid. Disregarding losses due to friction, etc., how many kWH are required to lift a 1 tonne mass 3 meters? Do no involve horse power in the formula. Consider this. U ( change in potential energy ) = m (mass) x g (...
  3. HANKMARS

    Modified sinewave to pretty good sinewave?

    I try to keep the values in the same county, but you are correct.
  4. HANKMARS

    Modified sinewave to pretty good sinewave?

    My apologies. It must be getting late at your home place.
  5. HANKMARS

    Modified sinewave to pretty good sinewave?

    I am still quite skeptical of these results. Wiki is after all contributions not text book necessarily.
  6. HANKMARS

    Modified sinewave to pretty good sinewave?

    Let's assume we loose 99% of energy in mechanical/electrical losses. That would mean a machine powered by 3 AA cells can raise 1 tonne 3 centimeters. I can visualize that. I believe in your last calc, you need to take 11.7 into another WH value, not just a watt value. I could be mistaken. It...
  7. HANKMARS

    Modified sinewave to pretty good sinewave?

    0.01000/0.00736 = 1.3 x 3 = 3.9 meters. Looks like it proves out.
  8. HANKMARS

    Modified sinewave to pretty good sinewave?

    40/3600 = 0.01 hour. 736/1000 = 0.736 kW 0.736 kW x 0.01 H = 0.00736 kWH. Maybe.
  9. HANKMARS

    Modified sinewave to pretty good sinewave?

    Wait. That should be 736 watts delivered for 40 seconds = ? kWH
  10. HANKMARS

    Modified sinewave to pretty good sinewave?

    Let me think out loud here so that my errors can be rubutted. 75 kg = 0.075 tonne. 1 hps can raise 0.075 tonne 1 meter. 1000/75. 1 hp will require 13.3 seconds to raise tonne one meter or put 13.3 hps. So right, 40 hps will raise 1000 kg 3 meters. Or 736 watts applied for 40 seconds equals 736...
  11. HANKMARS

    Modified sinewave to pretty good sinewave?

    I do believe Scotland would be one of the few places I would thoroughly enjoy visiting. Should I ever have to tolerate a monetary windfall, I may request your assistance in recommended highlights to visit, when I am not in the pubs. Regarding conservation of energy: The values in the following...
  12. HANKMARS

    Modified sinewave to pretty good sinewave?

    I have downloaded the link from TI. Will spend some time with it, am sure. Thanks. The PWM to MOSFET switches used in high power situations is something I need to get my head around. It really is the preferred method, I must assume. You are correct about the power dissipation of a power...
  13. HANKMARS

    Modified sinewave to pretty good sinewave?

    I will soon be living off grid. Access to clean water is paramount. No water, no life, no need of electricity. Currently have solution to water needs. In a prior off grid living situation, I found it to be disturbing to run a gasoline powered generator to merely watch movies on a tv or monitor...
  14. HANKMARS

    Modified sinewave to pretty good sinewave?

    I am interested in 3 kW unit but also guess shipping cost may be prohibiting. Common carrier would be my choice. I would need pick up address (residential or business area), ( loading dock, yes or no ), I could then get quote from truck broker. I recently purchased an Onan gasoline/propane fuel...
  15. HANKMARS

    modified sinewave ups

    I have to believe that a modified sinewave ups has to be worth its weight in dog pooh. Oops! Did it again.Replied to a decade old question. Scuezy.
  16. HANKMARS

    modified sinewave ups

    Outrageously demanding? Are there other types of design departments of which I have not heard.
  17. HANKMARS

    Modified sinewave to pretty good sinewave?

    Stuff's not getting any cheaper. It is nice to be able to modify salvage. Most always for my own use. Frivolous law suits and such. I think I'll go with the sinewave code in memory which feeds a D/A converter which drives the base of a power transistor. Knocking the efficiency even lower but if...
  18. HANKMARS

    Modified sinewave to pretty good sinewave?

    I am open to any suggestions as how to manipulate this corrupt waveform into something that won't fry motors, transformers and the like.
  19. HANKMARS

    Modified sinewave to pretty good sinewave?

    How about if I put a cap on each side of neutral or ground, and store a sinewave pattern in ram memory and clock thru memory at the appropriate speed that will give me 60 Hz or rather clock thru memory at 0.0166 seconds then back to memory start address?
  20. HANKMARS

    Wifi woes

    Will do, mucho gracious Dana
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