Warpspeed

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...

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...

If you use the output for control, then it becomes by definition feedback ! Getting a fast precise measurement of ac is always tricky...

Yup, you have this pretty well all figured out. Feedforward attempts to compensate for conduction losses and the resulting voltage droop...

@rogerdw connected up a treadmill motor directly to some series connected solar panels, and used a belt to drive the redundant ac motor...

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...

Those D-C2T sensors appear to have a zero to four volt output, although that is not exactly clear. For the Warpverter feed forward...

With bamboo being the fastest growing plant on earth, supposedly, you might think about adding a second story on that shed, then, adding...

Reading through the instructions at the link: It says (cut and pasted): Ah so !

It depends on temperature. At some point the cells begin to gas. When that happens the cells begin to lose water through electrolysis...

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...

Yes, the switching bridges draw current in half sinusoids from the bank of big electrolytics. Current from the battery is pretty much...

Dc can be measured very quickly at any time. Ac requires rectification and averaging, either in hardware or software, and averaging...

Output of Hall effect is direct dc, and its also sensitive to current direction (normal inverter load, versus battery back charging)...

Maybe there is a TO-247 version of that available ? Exact same die, but should have a lower thermal resistance and fatter legs. A...

Great stuff Roger ! I have been playing around with various experimental Warpverter circuits for many years. Voltage droop with load...

Here is the schematic of how the Warpverter load compensation works. Original circuit on the left generates a constant +2.0v reference...

Not too many lead acid powered drones flying around LOL. On the other hand, a second life fork lift battery makes excellent economic...

The way around that would be to fit the optional feed forward current correction. What that does, it uses a Hall current sensor in the...

I’ve had batteries that measured perfectly normal voltage wise and resistance wise but failed under a load. Even the worlds cheapest...