Electric OU: Supplement: The "Shifting Paradigm Instrument Board" Intro

Donated to TKLabs by SWeir and friends, this is a properly designed and laid out PCB with a precision non-inductive current sense resistor, frequency compensation and snubbing networks that will give a true picture of input supply voltage (VBatt) and input current to the Ainslie Q1 IRFPG50 switching element. The board also can accomodate connections for Q2 transistors and has a monitoring point for Q2 Gate Current as well.

Here I just introduce the board in a Temperature Rise experiment at 164-165 kHz as before, checking the DMM’s report of average current with the SP board’s current trace. The agreement is very good. I’ll be processing and plotting the time-temperature data from this run, along with the previous runs, a bit later on.

With this board and proper monitoring technique the ripple on the VBatt signal is quite small, around 1 V p-p on top of the 25 volt supply voltage. Although I do not show Q2 operation in this video, the VBatt ripple remains small when Q2 is oscillating as well. With VBatt taken as constant, the average Current may be used accurately to calculate the average Power input to the circuit.

I would once again like to extend my thanks to Steve Weir and the other friends (you know who you are!) who have helped me with this challenging project. Donations of instruments, supplies and even a little cash…. all have helped immensely and I’m grateful for it all.

Everything we know about the so-called “Ainslie circuit” and its performance comes _in spite_ of the obfuscation, errors and mendacity of the “team” of Rosemary Ainslie and Donovan Martin. Our confidence in our results is due to dedicated and knowledgeable workers like SWeir, FuzzyTomCat, Poynt99 and others who have worked hard gathering data under controlled and documented conditions, and who have published and explained their findings in the true spirit of Open Source research.

You may also like...