WEBVTT

00:00.000 --> 00:02.674
Diagram to be consulted in the following screens

00:02.674 --> 00:09.964
An upper right: voltage source and ammeter Ig generator current

00:09.964 --> 00:17.862
Load: coil in series with continuous motor, all piloted in MLI

00:17.862 --> 00:22.698
I motor in the ammeter yellow just to the right of the left LCD oscilloscope

00:22.698 --> 00:29.727
The motor ammeter is in series with the motor but in parallel with the diode

00:29.727 --> 00:37.303
The red voltmeter on the right shows the motor voltage with a capacitor in parallel

00:37.303 --> 00:41.645
Follow LCD oscilloscope and cyclic ratio hide rcy in turquoise blue

00:41.645 --> 00:51.419
The engine receives 2.8 V or 10% of 28 Volts (as the rcy)

00:51.419 --> 01:00.503
The generator provides 0.05 A while the motor receives 0.44 Amps, almost 10 times +

01:00.503 --> 01:08.637
I divided by ten my tension to the benefit of the intensity multiplied by 10!

01:08.637 --> 01:15.776
As with the transformer! Power conserved, ratio of U and I reverse!

01:15.776 --> 01:33.867
The coil operates as a self-transformer, but here the duty ratio is equivalent to the ratio of the turns ...

01:33.867 --> 01:49.547
Power supplied: 0.05 A * 30 V = 1.5 Watt. Useful: 0.44 A * 2.6 Volt = 1.2 W

01:49.547 --> 02:02.803
The yield is about 80% as early as 10% Us / Ue! Far from the 10% in linear

02:02.803 --> 02:14.800
With 20% of rcy: motor current = 5 * Ig, motor voltage = 1/5 of Ug

02:14.800 --> 02:28.629
Power consumption: 28 * 0.11 = 3 W, supplied: 0.55 * 5 V = 2.5 W, 80% efficiency!

02:28.629 --> 02:36.576
The inductance working in autotransformer, the output is independent of Us / Ue

02:36.576 --> 02:46.874
A 50%, us = Ue / 2; Is = Ie * 2; Ps = Pe * 0.8 of output!

02:46.874 --> 03:05.986
It works well as a self-transforming step-down transformer