Author Topic: New VIC pictures discussion!!!  (Read 39045 times)

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Re: New VIC pictures discussion!!!
« Reply #96 on: February 20, 2009, 18:38:21 pm »
Filter chokes
The largest values of inductance that can be obtained in practice are on the order of
several henrys. The primary use of a coil this large is to smooth out the pulsations in direct
current that result when ac is rectified in a power supply. This type of coil is known
as a filter choke

Inductors at radio frequency
The radio frequencies range from 9 kHz to well above 100 GHz. At the low end of this
range, inductors are similar to those at audio frequencies. As the frequency increases,
cores having lower permeability are used. Toroids are quite common up through about
30 MHz


Inductors at audio frequencies range in value from a few millihenrys up to about 1 H.
They are almost always toroidally wound, or are wound in a pot core, or comprise part
of an audio transformer.
Inductors can be used in conjunction with moderately large values of capacitance
in order to obtain audio tuned circuits. However, in recent years, audio tuning has
been taken over by active components, particularly integrated circuits


***********notes*********

toroid and pot core chokes will not work.. they can only be used in a pre determined circuit that doesnt need to be tuned..  stan is using a tunable negative choke. ruling them out. i know of two ways to make a tunable choke.. one is to finely sand a small line from end to end and use a copper rod that can slide from end to end..  the copper rod is attached to secondary neg along with neg choke.. the other way is shown on last post.. allowing your ferro rod to be adjustabe.   the one in the pic would work really good for having ability of electronic control by means of servo.

outlawstc

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Re: New VIC pictures discussion!!!
« Reply #97 on: February 20, 2009, 18:46:41 pm »
Good theory, outlawstc !!

Very usefull and good readable!

br
Steve

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Re: New VIC pictures discussion!!!
« Reply #98 on: February 20, 2009, 19:28:18 pm »


note of number 4- As long as the magnetic fields around inductors do not interact, inductances in series
add like resistances in series..
they are definatly interacting which would take away resistance in 6-1. this i beleave is why the all in one unit requires resistive wire.  then again depending on how the choke wire is wired you can have 2 seperate wires (Bifiliar) flowing the same way?



in the tech brief stan states that the interaction between the primary/secondary coil and the bifilar coil adds to the resistance.......so they are most likely matched.

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Re: New VIC pictures discussion!!!
« Reply #99 on: February 20, 2009, 19:36:16 pm »
The unit of capacitance is an expression of the ratio between the amount of current
flowing and the rate of voltage change across the plates of a capacitor. A capacitance of
one farad, abbreviated F, represents a current flow of one ampere while there is a potential-
difference increase or decrease of one volt per second. A capacitance of one
farad also results in one volt of potential difference for an electric charge of one
coulomb.

****** note*******

our water fuel cell i think need to be in parallel  since we are trying to create a charge inside the cap without current.. for series to work it must use current to transfer from cell to cell

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Re: New VIC pictures discussion!!!
« Reply #100 on: February 21, 2009, 04:34:17 am »
welp you guys this information i have come across here is quite interesting.. i sugest that everyone read it and understand this is what we want.

Ferroresonance is a general term applied to a wide variety of interactions between capacitors and iron-core inductors that result in unusual voltages and/or currents. In linear circuits, resonance occurs when the capacitive reactance equals the inductive reactance at the frequency at which the circuit is driven. Iron-core inductors have a nonlinear characteristic and have a range of inductance values. Therefore, there might not be a case where the inductive reactance is equal to the capacitive reactance, but yet very high and damaging overvoltages occur.

http://en.wikipedia.org/wiki/Ferroresonance

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Re: New VIC pictures discussion!!!
« Reply #101 on: February 22, 2009, 20:27:02 pm »
i have been searching to try and find a good ferrite for winding choke for the alternator rotary version..
i came across one that was kinda interesting.. it is a delrin covered ferrite..  i think stan may have used this and not mentioned it.. if your positive choke is ripping out all its electrons.. the ones in the ferrite will most likely want into the wire.. thats why it must be highly insulated. to prevent dielectric failure from occuring.

CHOKE, RF PLATE 90 uHY @ 0.8 ADC
1.8-30 MHZ ON GROOVED 5/8" DIA DELRIN


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Re: New VIC pictures discussion!!!
« Reply #102 on: February 23, 2009, 04:59:22 am »
anyone heard from dynodon.....i tried to email him but the email bounced back....and a charging inductor like stan refers to is designed like a filter inductor.....which is divided into sections.....the sections are a necessary also so the windings are constantly in one direction only.
« Last Edit: February 23, 2009, 06:30:56 am by kinesisfilms »

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Re: New VIC pictures discussion!!!
« Reply #103 on: February 24, 2009, 03:06:32 am »
In eqn 19, Z should be a 2, don't you think?
Similar to the energy in a cap ( C * V^2 / 2)

If the Z is a 2, then plugging in 40 watt and .001 amp, L would result in 80000000 H lol
And again Z = 2, I =  3.3A, this gives L = 7.346H

ALAN absolutely correct!!! Z it a typo I AM AN IDIOT it is 2 and not Z DAMN DAMN DAMN....wow that one slipped by me real bad......plus in your second quote you put in watts instead of joules!......w is watts seconds or joules...not watts........these damn variables and typos agarhaghag.
« Last Edit: February 24, 2009, 19:22:17 pm by kinesisfilms »