DLE-TEST17 : FULL
MEASUREMENTS on the Bi-Toroïd Transformer (BiTT v1.5) created on february 9, 2013 - JLN
Labs - last update march 20, 2013 All informations and
diagrams are published freely (freeware) and are intended for a private use and a non commercial
use.
Toutes les informations et
schémas sont publiés gratuitement ( freeware ) et sont
destinés à un usage personnel et non commercial I
am very gratefull to Thane C. Heins for his encouragements and
his very helpfull technical support Cliquez ici pour la version FRANCAISE
March 19, 2013
- DLE-TEST17
: Here is a
new serie of measurements that I have conducted on my replication
of the Bi-Toroïd Transformer (BiTT v1.5) fully
based on the BiTT from Potential Difference Inc. Canada. This
transformer has already been tested in the DLE-TEST05, in this new test, I have
connected a 2 Ohm non inductive 10 W resistor at the outputs. The
ouput power dissipated by Joule effect in the resistor is
calculated with the voltage measured accross it with a digital
scope Fluke 123. The power at the BiTT input is calculated by
measuring the voltage, the current and the cosinus f.
Below
the setup used for the TEST-DLE17 :
Below
the 2 Ohms resistor used as the LOAD made with two non inductive
1 Ohm/10W resistors connected in serie.
TESTS
RESULTS on the BiTT v1.5 :
Below,
the voltage, the current and the phase shifting measurements done
at the BiTT input :
Below
the voltage measurement accross the 2 Ohms LOAD :
March
20, 2013 - DLE-TEST17b
: Here is a
new loading test on the BiTT v1.5. The load resistance has been
replaced by a strong headlight for bike (High Power CMS LED)
connected via a switch to the BiTT secundaries outputs.
I
have used a bike headlight WhiteEye (240 lumens). It is powered
through a DC rectifier bridge.
We
observe that the input voltage and current on the primary remains
inchanged and also that the Cos (f) doesn't change
significantly when the headlight is lit or not.
Comments :
My
replication v1.5 of the BiTT from PDI is not yet overunity.
Today, in my BiTT replication, there are a lot of hysteresis
losses and eddy losses due to the type of ferromagnetic material
that I have used. Un good choice of a specific ferromagnetic
material with low losses will permit to greatly increase the
efficiency of the BiTT. We can observe that when a 2 Ohms
resistor produces 3.06 Watts at the BiTT output or when a high
power bike headlight is used, the phase shifting between the
voltage and the current doesn't change much. The BiTT is really
not a conventional transformer...
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