\n
\n
\n
\n\n
\n Rtotal\n
\n =
\n =
If we compare this circuit with the previous circuit\n(4 resistances in series instead of parallel),\nthen this circuit has:
\nBecause there’s less resistance, which essentially means:
\nThe total magnetic-storage of a circuit of this type will be\ngreater than any individual magnetic-storage.
\nThere are no branches, so the magnetic constructor doesn’t split up. That means that there’s only one “large” magnetic constructor which enables the magnetic field to grow and thus store more magnetism. Also see the next circuit for the inverse.
\n","labels":["1","2","","3","4"],"dirname":"02-series-parallel","title":"Inductors in series"},{"localPath":"02-series-parallel/04-capacitors-parallel.md","circuit":"┌─┰─┰─┰─┐\nG-C-C-C-C\n└─┸─┸─┸─┘\n","content":"The total dielectric-storage of a circuit of this type will be\ngreater than any individual dielectric-storage.
\nThe smaller the dielectric field, the more dielectricity it can store, it has a counter-spacial nature. What we’re doing here is essentially creating less space, you can think of these capacitors as one capacitor with four times less space between its plates. So, less space, more dielectric storage.
\n","labels":["","1","2","3","4"],"dirname":"02-series-parallel","title":"Capacitors in parallel"},{"localPath":"02-series-parallel/07-resistances-complex.md","circuit":"┌─┰r┰─┐\nG-R-R-│\n└─┸─┸r┘\n","content":"The total resistance of a circuit of this type will be\ngreater than any individual resistance.
\nIf we compare this circuit with the next circuit\n(4 resistances in parallel instead of series),\nthen this circuit has:
\nBecause there’s more resistance, which essentially means:
\nThe total magnetic-storage of a circuit of this type will be\nless than any individual magnetic-storage.
\nThe magnetic constructor splits up, each branch will have a fraction of the total amount. So, the circuit can’t store much magnetism, because there’s no way for the magnetic field to grow without a magnetic constructor, and if the magnetic field doesn’t grow, there’s no place for the magnetism to go.
\n","labels":["","1","2","3","4"],"dirname":"02-series-parallel","title":"Inductors in parallel"},{"localPath":"01-basics/05-inductor-capacitor.md","circuit":"┌─────┐\n│-----I\nG-----│\n│-----C\n└─────┘\n","content":"Focuses magnetic-field lines, magnetic storage.
\nThe inductor issues a resisting magnetic-effect because of the change in the magnetic field. The magnetic field wants to grow, and our inductor resists that change. If the magnetic field would disappear, the inductor would delay the disappearance of the magnetic field. It goes in both ways, it resists the change. This gradual effect is called a transient.
\nThe generator issues a magnetic effect in volts (also called EMF).
\nThe inductor has a magnetic-storage coefficient (also called inductance).
\nThe circuit has a certain magnetic loss (also called resistance of the conductor).
\nThe circuit has a certain magnetic constructor (confusing term usually used for this is current or potential).
Magnetic effect, E
.
\nMagnetic constructor, i
.
\nMagnetic storage, L
.
\nMagnetic loss, R
.
Magnetic constructor after the transient, the permanent condition: i = E / R
\nWhere E
is the magnetic effect of the generator.
Number of turns, n
.
\nMagnetic field, Phi
.
\nMagnetic flux, Phi * n
.
This defines our relation between the magnetic field and the inductor: i * L = Phi * n
To calculate the resisting magnetic-effect: E = (Phi / t) * n
\nt
represents the time (in seconds) since the start of the transient.
\nPhi
is of the permanent condition after the transient.
Magnetic constructor during the transient: i = (Eg - Er) / R
\nWhere Eg
is the magnetic effect of the generator and Er
that of the inductor.
To calculate the time constant of the transient: T = L / R
\nWith this we can calculate the approximate duration of the transient: 5 * T
We can also calculate an approximation of i
at a given point during the transient:
-- Javascript\n-- :: Eg = supply voltage\n\nlet\n magneticConstructor = Eg / R\n timeDerivative = Basics.e ^ (-t / T)\nin\n -- i =\n magneticConstructor * (1 - timeDerivative)\n
\n","labels":null,"dirname":"01-basics","title":"Inductor"},{"localPath":"01-basics/01-electricity.md","circuit":null,"content":"Electricity consists out of two parts.
\nMagnetism is, well, magnetism, like the magnetic poles of our earth 🌍.
\nDielectricity is like atmospheric stress, for example, the stress that causes lightning ⚡️.
Both of these represent stored energy, and both are measured in the dimension of space 📐.
\nSo we are calling these the magnetic field and the dielectric field respectively.
\nNote that both of these consist out of these things called “lines of force”.
The product of these fields gives us the electric field Q.
\n-- Phi :: The greek letter, Φ, amount of magnetic lines of force\n-- Psi :: The greek letter, Ψ, amount of dielectric lines of force\n\nQ = Phi * Psi\n
\nChanging these fields creates an effect.
\n\n
(Volts)
\n
(Amperes)
We can change these fields by:
\nThe product of these effects gives us the electrical activity, or power, in Watts.
\n-- E = Phi / t :: Magnetic effect\n-- I = Psi / t :: Dielectric effect\n\nP = E * I\n
\nConsequently, there is also the varying of the entire electric field, that’s energy, in Joules.
\nW = Q / t\n
\nThe chicken or the egg.
\nI
to the\n From the magnetic E
to the\ni
\n Magnetic constructor\n(Amperes)
\ne
\n Dielectric constructor\n(Volts)
\nThe two parts of electricity help each other. An effect becomes a constructor for the other field. That is, a magnetic effect is required to construct a dielectric field, and a dielectric effect is required to construct a magnetic field.
\ne = E = Phi / t -- in Volts\ni = I = Psi / t -- in Amperes\n
\nNote that you can also use the power equation with these values,
\nbecause these are also volts and amperes.
P = E * i -- Magnetic activity in Watts\nP = I * e -- Dielectric activity in Watts\n
\nBecause E
and i
are required to coexist in order to build up the magnetic field, and I
and e
to build up the dielectric field. We can say that it requires power to build up the magnetic and the dielectric fields, but it is not required to maintain these fields. Because power only appears when something is changing.
P = e * i
. So in total we have four electrical activities, For this we have our storage coefficients.
\n\n
(Henries)
\n
(Farads)
There are specific ways to calculate the storage coefficients. These are just the generalized formulae to represent them. In practical terms, these depend on a few things: the position of the conductor in space, the material filling the space surrounding the conductor and on the shape of the conductor section.
\n-- Magnetic Storage\n--\n-- n :: number of turns (or in other words, inter-linkages between `i` and `Phi`)\n-- σ :: effective permeability of the magnetic field\n-- A :: sectional area of the magnetic induction, in centimeter square\n\nL = (n ^ 2) * σ * A\n\n-- Dielectric Storage\n--\n-- l :: length of the dielectric (eg. space between capacitor plates)\n-- ε :: constant of the material surrounding the conductor, permittivity\n-- A :: area of the conducting surface\n\nC = (ε * A) / l\n
\nThe intermediate effect between two permanent conditions.
\nOr in other words, stored energy increases or decreases exponentially. This exponential curve is a transient. Transients occur in all types of energy. For example, things heating up or cooling down. In electricity there are generally two types of transients. One is called a single-energy transient and the other is a double-energy transient. Which basically means that sometimes one field is so small that it isn’t worth measuring (single-energy) and other times it is worth measuring (double-energy).
\nIt’s best explained with examples, the first one is in part 3 of the basics.
\nEnergy that leaks out of the storage.
\n\n R\n
\n Magnetic loss\n Molecular loss in the conductor, or apparent magnetic loss\n
(Ohms)
\n G\n
\n Dielectric loss\n Molecular loss in the insulation, or apparent dielectric loss\n
(Siemens)
For each field there are two categories of losses we care about:
\n-- Molecular loss in the conductor\n----------------------------------\n-- ρ :: resistivity of the conductor material\n-- l :: length of the conductor/wire\n-- A :: section/area of the wire\n\nR = ρ * (l / A)\n
\n-- Molecular loss in the insulation\n-----------------------------------\n-- σ :: conductivity of the conductor material\n-- l :: length of the conductor/wire\n-- A :: section/area of the wire\n\nR = σ * (A / l)\n
\nThe most basic circuit, a generator plus a load (eg. lamp).
\nThe generator applies a magnetic-effect on the circuit, which is of a certain value. For example, we could say, the generator supplies 10 volts to the circuit. This value varies based on the circuit and the maximum value of the generator. There is also a dielectric field in the circuit, because there is no electricity if you only have one type of field, you need both magnetism and dielectricity if you want electricity. The amount of magnetism and dielectricity in the circuit stays the same as long as the circuit stays the same. For example, if we would connect more lamps, the size of the magnetic and dielectric fields would change.
\nEnergy is stored in the space around the conductors, but also in the generator and the lamp. The more lamps, the more energy that is stored in the circuit. The electrical energy is transformed into heat, so the more lamps the more power that is used. Power here means, transfer of energy (from one form to another). The conductor also dissipates some power, through its resistance.
\n","labels":null,"dirname":"01-basics","title":"Load"},{"localPath":"01-basics/04-capacitor.md","circuit":"┌─────┐\n│-----│\nG-----C\n│-----│\n└─────┘\n","content":"Focuses dielectric-field lines, dielectric storage.
\nLike in the previous circuit, the generator applies a magnetic effect on the circuit, which builds up a magnetic field. Here we don’t have a magnetic-storage element in our circuit, except for the small ones namely the conductors. So, the magnetic field is build up almost immediately (ie. the less magnetic-storage, the faster it builds up, the shorter the transient).
\nThe permanent condition after the transient will not be the same as with the inductor circuit. When the capacitor is charged, there is no magnetic constructor, it behaves like an open circuit. The capacitor will charge up to the voltage given by the generator. Well, almost.
\nThe generator issues a magnetic effect in volts (also called EMF).
\nThe capacitor has a dielectric-storage coefficient (also called capacitance).
\nThe circuit has a certain magnetic loss (also called resistance of the conductor).
\nThe circuit has a certain dielectric constructor (also called electro-static potential).
Dielectric effect, I
.
\nDielectric constructor, e
.
\nDielectric storage, C
.
\nDielectric loss, G
.
\nDielectric field, Psi
.
This defines our relation between the dielectric field and the capacitor: e * C = Psi
e = Phi / t
\nWhich is the same formula as for a magnetic effect.
\nOur magnetic effect from our generator becomes a dielectric constructor.
Phi
is unknown, so we can’t use it to calculate the dielectric constructor during the transient, we will have to find another way to calculate this. We can do this by using Ohm’s law again, but this time in slightly different form.
Calculation:
\nI = Psi / t
E_cap = I * R
e_max = E_generator
e = e_max - E_cap
To calculate the time constant of the transient: T = C * R
\nWith this we can calculate the approximate duration of the transient: 5 * T
We can also calculate an approximation of e
at a given point during the transient:
-- Javascript\n-- :: Eg = supply voltage\n\nlet\n dielectricConstructor = Eg\n timeDerivative = Basics.e ^ (-t / T)\nin\n -- e =\n dielectricConstructor * (1 - timeDerivative)\n
\n","labels":null,"dirname":"01-basics","title":"Capacitor"},{"localPath":"03-alternating/01-symbolic-algebra.md","circuit":"┌───┐\nA---I\n└───┘\n","content":"Symbolic algebra serves as a tool to calculate A.C. phenomena.
\nInvented by Charles P. Steinmetz.
a + jb = E = 1\n
\nWhere:
\n± a
, cos θ, the active/power factor (% horizontal component, x-axis)± b
, sin θ, the reactive/induction factor (% vertical component, y-axis)j
is the distinguishing indexE
is a variable that has a active and reactive part\n(magnetic effect, EMF, in this case)Rules:
\na + jb = 0
, then a = 0
and b = 0
j
what?The definition of j
is as follows, this is the imaginary unit:
j = √ -1\n\nj ^ 0 = + 1\nj ^ 1 = + j\nj ^ 2 = - 1\nj ^ 3 = - j\n
\nWhat we’re actually doing is combination by the parallelogram law.
\nWe’re looking for the hypothenuse.
a + jb = Math.sqrt(\n Math.pow(a, 2) +\n Math.pow(b, 2)\n)\n
\n// tan θ = b / a\nθ = arctan(b / a)\na + jb = cos θ + sin θ\n
\nThe following uses an example phase angle of 0º
,
\nwhich means that cos θ
will be 1
:
(a + jb) * j ^ 0 = a + jb # (+1, 0) + 1 no rotation\n(a + jb) * j ^ 1 = ja - b # (0, -1) - √-1 advance 90º\n(a + jb) * j ^ 2 = -a - jb # (-1, 0) - 1 reverse, 180º rotation\n(a + jb) * j ^ 3 = -ja + b # (0, +1) + √-1 advance 270º\n
\n\nOr in different terms:
\n a + jb = Math.sqrt( a ^ 2 + b ^ 2 )\n ja - b = Math.sqrt( a ^ 2 - b ^ 2 )\n- a - jb = Math.sqrt( - a ^ 2 - b ^ 2 )\n-ja + b = Math.sqrt( - a ^ 2 + b ^ 2 )\n
\nThis can be altered. For example, you can choose a different starting position, by rotating it, or you could go in the opposite direction. When going in the other direction, a different symbol is usually used, for example, j
is forwards and k
is backwards.
(a + jb) + (c + jd)\n\n# Process\n= a + jb + c + jd\n= a + c + jb + jd\n\n# Result\n= (a + c) + j (b + d)\n
\n(a + jb) - (c + jd)\n\n# Process\n= a + jb - c - jd\n= a - c + jb - jd\n\n# Result\n= (a - c) + j (b - d)\n
\n(a + jb) * (c + jd)\n\n# Process\n= (a * c) + (a * jd) + (jb * c) + (jb * jd)\n= ac + ajd + cjb + jbjd\n= ac + j * ad + j * cb + j^2 * bd\n= ac + j (ad + cb) + j^2 * bd\n= (ac + j^2 * bd) + j (ad + bc)\n\n# Use rule defined above: j ^ 2 = - 1\n= (ac + (-1 * bd)) + j (ad + bc)\n= (ac + (-bd)) + j (ad + bc)\n\n# Result\n= (ac - bd) + j (ad + bc)\n
\n(a + jb) / (c + jd)\n\n# TODO\n
\n","labels":["","Inductor"],"dirname":"03-alternating","title":"Symbolic Algebra Basics"}],"parentPath":null,"workingDirname":"src/Pages","basename":"200","dirname":"","pathToRoot":"/","title":"Electrical Circuits","extname":".html"}