Скачать или смотреть Electric OU: Data and Results: Quantum Magazine Circuit Q-17

The Rosemary Ainslie "Quantum Magazine" single-mosfet circuit is tested at 2.4 kHz, 3.7 percent HI and also 95 percent HI duty cycles.

The thermal data indicate that it is unlikely that Ainslie used the claimed 3.7 percent HI duty cycle for the experiment described in the Quantum Magazine article. Ainslie claimed a 52 degree C rise over ambient temperature, but with the true 3.7 percent ON duty cycle I only saw a few degrees rise. How ever (tm RA) ... using the inverse or compliment Duty Cycle of 95 percent ON, I got 60 degrees rise.... a much better agreement with Ainslie's reported temperature data.

The schematic she published for that article cannot produce the claimed 3.7 percent ON duty cycle but has no trouble at all making the compliment or inverse duty cycle of 96.3 percent ON.

The conclusion is obvious. Ainslie's reported schematic makes the long, NOT the short, ON duty cycle, and when that long duty cycle is actually tested for heat rise, it produces a similar rise to what Ainslie reported originally. The short duty cycle claimed by Ainslie in the Quantum Magazine article does not produce the required heat rise over ambient when actually tested on my apparatus, but the long one does.

Due to the limitations of my equipment I could only manage a 95 percent ON dutycycle with the F34 FG .... I hope that a 1.3 percent difference doesn't upset too many people. The 3.7 percent duty cycle was managed precisely using the DP101.

Once again... or rather, twice again, I demonstrate that the DMM and the oscilloscope readings of the average current are in very close agreement.


Music is "Ambient Ambulance" by Jingle Punks, from the YT Audio Library. Thanks, folks!