Power Calculations

RE: Power Calculations

jw0752 — Mon, 18 Sep 2017 03:23:58 GMT

Hi Mark, I tried to upload a video of the circuit in action but the site says I am doing something illegal? By the way I ran some tests on my best meter and while the digit spaces are there to read 10 nA the meter is very inaccurate below 1 uA and so there may be more leakage than I can detect but it will have to be less than 200 nA as I am able to detect that though not accurately.

John

RE: Power Calculations

three-phase — Sun, 17 Sep 2017 20:49:27 GMT

Interesting to read, is solar your only option for providing charging power or could you also look at a small wind turbine for when solar is not available?

RE: Power Calculations

jw0752 — Sun, 17 Sep 2017 14:03:33 GMT

Hi Mark,

I remember when you discussed this project before and I look forward to seeing what you end up doing with it. I thought you analysis of the power flow problem was very interesting and a good example of how to prepare for such a problem. Too many people just roll the dice and then are disappointed when things don't work out as they hoped. At least you will proceed with your eyes open. When you said "latching relay" I envisioned an electrically latching one which would not be good but later it became clear you were thinking of a mechanical latch. Another possibility would be to use SCRs to latch and enable the power.

John