

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 The load resistance has been replaced by a strong headlight for bike (High Power CMS LED) connected via a switch to the BiTT secundaries outputs.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...

Below the video of the full tests done on the BiTTv1.5

Documents and references ( courtesy of Thane C. Heins CEO of PDI Canada ) :

MIT Dr Zahn Bi Toroid Transformer Tutorial by Thane C. Heins Stay tuned, Email: jnaudin509@aol.com

NEXT TEST

visits since december 29,2012