Microwave on PSW vs MSW Inverter- Results
I have been using a MSW inverter to run the microwave for several years now, and decided to try a PSW inverter. I expected the microwave to run a little better and for the inverter to draw more amps ...
Forum Discussion
road-runner wrote:
I think you'll find that the AC power draw and cooking power on MSW will vary with the battery voltage. The cooking power of a conventional microwave is totally dependent on the peak voltage of the AC waveform. MSW peak is always less than sine wave peak, but is also directly proportional to the DC input voltage to the inverter.
I was not able to observe that with my MSW, having only the Trimetric showing DC on the battery bank. With the inverter, you do get "amps creep" where it pulls more amps as battery voltage goes down, as it tries to maintain the watts. The above suggests that as that is happening, you are getting less cooking power even with the higher amps draw? Whatever, it never seemed to matter. Now with the PSW, that is all history for me! :)
These AGMs have 0.3 higher voltage going in than my Flooded had, so that must have helped with the MSW running the same microwave, but no way to tell really.
