The following could be a major breakthrough in the diode research, as it might solve the issue with placing diodes in direct parallel connection. Experimental data suggestions that 2 diodes in parallel produce half the DC voltage as a single diode, and thus half the power-- P = V^2 / R. First, I'll outline the hypothesis, and then the new proposed diode design.
The Hypothesis:
All diode models show that diodes produce a DC voltage by rectifying Johnson noise, but each model varies. Some models are more accurate that others. Science is not about absolutes. Science is not about assuming any equation is 100% perfect. The present best diode model I am aware of is where the diode depletion width varies relative to the applied *voltage* across the diode. It is a well known simple fact that the net Johnson noise across two identical resistors in parallel is less than one resistor. The net noise across two diodes in parallel is 1/sqrt(2) ~= 0.707 times less noise than one diode. The diode square law states that the resulting DC voltage from a diode, due to the rectification of an AC, is equal to the square of the AC. Therefore, the [1/sqrt(2)]^2 equals 1/2, which means two diodes in-parallel will produce half the DC voltage, and therefore half the DC power, as P = V^2 / R. Therefore, the DC voltage is relative to Rz, which is in agreement with diode experiments.
The new proposed design:
The proposed new design for diodes in direct parallel connection is to place an inductor in series with *each* diode. So if there are 10 diodes, there would be 10 inductors. Each inductor will hinder some of the AC noise *between* diodes, but it will not hinder the noise that each diode produces on itself. Every component has parallel capacitance, and therefore the noise across a diode is known as kTC noise, which is equal to sqrt(k * T / C). The inductor would decrease the parallel noise between diodes, and thus prevent some of the parallel noise cancellations. As to exactly how much noise the inductor cancels depends on the inductor.
New proposed tests:
This new diode array design that includes inductors should become Stage 5 in the research. Stage 4b is expected to be completed sometime in November to December. Stage 5 could begin in early 2010.
Created on 2009-07-06 04:45:35 by EnergyMover
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