Romero's experiments and OU principles

[Thaelin]

   Just be sure to remember that it is frequency dependent. The transformers are being driven at the frequency that they were designed for. Small voltage dc in controls a large ac voltage out. Cant be turned off completely tho. Many possibilities there for sure.
'
thay

[nul-points]

[...]
Cant be turned off completely tho.
[...]
thay

in the second page, showing an advanced circuit using toroids, the author stated this:
   "In this circuit, using 35 khz and toroids to control a light, the light is completely off with no input dc bias. A positive dc bias will turn the light on and brighter"


PS  it should be noted that when these systems refer to "gain" they do not mean energy gain

the stated gain is the ratio between control signal power and output power - NOT between continuous Input Power and continuous Output Power!

HTH
np


http://docsfreelunch.blogspot.com

[totoalas]

url="http://www.ece.unh.edu/courses/ece618/pdf/dc_motor.pdf"]http://www.ece.unh.edu/courses/ece618/pdf/dc_motor.pdf[/url] , page 5)

3)  Notice that the models include the inductance and the resistance of the windings.   In this motor the inductance plays an important role, since the time constant (L/R) is very large compared to the duration of the on time, which means this motor is efficient and very little losses go into I^2 R losses in the windings.  So, as the coil is drived with  -Va polarity, current begins to increase and build up with a rate close to (Va + EMF)/L = di/dt,  and this stores energy in the inductance and ultimatley BACK INTO MAGNETIC FIELDS THAT INTERACT WITH THOSE OF THE ROTOR IN MOTION.   


EM
Hi EM
Just want to know if the addition of magnets also plays an important role in the A DC motor model ??
http://www.youtube.com/watch?v=XifhWt3tolg
DC Magverter

cheers

totoalas

[Thaelin]

Hi Null:
    Sorry, that one slipped by me till now. I will have to check it out. Just wondering if there is any 'leakage' that gets by. Have to set up one and see what goes. Would love to run a motor with no transistors to kill but it needs to be able to shut off totally for sure. My bucket of burn offerings has been getting a lot of attention lately. Ten mosfets at a time when they go.
   Think it would be rather hard to kill a torrid 

thay

in the second page, showing an advanced circuit using toroids, the author stated this:
   "In this circuit, using 35 khz and toroids to control a light, the light is completely off with no input dc bias. A positive dc bias will turn the light on and brighter"


PS  it should be noted that when these systems refer to "gain" they do not mean energy gain

the stated gain is the ratio between control signal power and output power - NOT between continuous Input Power and continuous Output Power!

HTH
np


http://docsfreelunch.blogspot.com