Tip 1: How to raise or lower the voltage

In Russia, the overwhelming majority of appliances powered by an AC voltage of 220 volts.But in some cases it becomes necessary to increase or decrease this stress.
Guide
1
If you need to lower the voltage twice - for example, to supply low voltage incandescent lamp, turn on the circuit powerful diode.He would cut a half-wave, as a result of the voltage is 110 V. The fact that it will be permanent, for an incandescent lamp does not matter.This method of inclusion is useful where you want low power consumption and long lamp life.
2
To increase voltage auto-use.They are designed to set the level of the output voltage, increasing it within 50 volts.Autotransformers are commonly used in networks with low voltage - for example, in rural areas, where the voltage drop is quite commonplace.By means of the autotransformer and can lower the voltage in the same range.But note that when a large drop or increase voltage autotransformers strongly heated.Using them, always consider the load capacit
y for which they are designed.
3
Support voltage 220 V enable voltage regulators.Most often, they are used in low voltage, they are able to raise it to a few tens of volts.When the regulator does not exceed the load capacity for which it was designed.
4
raise the voltage, you can use the multiplier - a special device consisting of diodes and capacitors.These multipliers are used in the power supply anodes picture tubes, increasing the voltage to approximately 25-27 thousand volts.For more information about the multipliers you can read here: http://radioskot.ru/publ/spravochnik/umnozhitel_naprjazhenija/2-1-0-363.
5
If necessary, raise or lower the voltage you can reel homemade transformer.The exact formula of his calculations are quite complex, so use an approximate formula: n = 50 / S, where n - number of winding turns per 1 volt voltage.S - area of ​​the magnetic circuit.When using the W-shaped plates area is the product of the average width of the tongue plate to the thickness of the package, in centimeters.
6
Calculation example: if the width of the middle of the tongue 4 cm, thickness of the package - 5 cm, then S = 20.Dividing 50 by 20, you get a 2.5 coil 1 volt.Then the primary winding will be 220 x 2.5 = 550 turns.If the secondary winding you need to receive, for example, 300 volts, then it will need 750 turns (350 x 2.5).This calculation method is most suitable for low-power transformers for power electronics, and other low power devices.

Tip 2: How to increase the voltage

In order to increase the electric power on the circuit change is one of several parameters, wagging it.Increase the power source electromotive force (EMF) or make smaller the resistance of the current loop.Drag reduction can be achieved by reducing the resistivity of the conductors, reducing their length, or increasing the area of ​​their cross section.The result is controlled by a voltmeter connected in parallel to this circuit portion.
How to improve stress
you need
  • voltmeter
Guide
1
Increased voltage using EDS.Esli in the current source has the ability to control EMF with a special controller with the values,to raise the voltage on the circuit increase EMF current source.How many times will increase EMF, so many times will increase tension.If the possibility of adjusting the current source is not EMF, connect the chain to the next, more powerful source of current, the voltage on the circuit will increase as many times as the value of a powerful source of EMF exceeds EMF less powerful.
2
Increased voltage change in resistance.In order to increase the voltage on the circuit, reduce the resistance.How many times will decrease its value, as many times increase the voltage.Therefore, in order to raise the voltage in the electrical circuit by n times, perform one of the following operations.
3
Pick a conductor material to its resistivity was n times lower than those that are currently in use on the circuit (resistivity can be found in special tables).
or reduce the total length of all the conductors in the area n times.
or increase the cross sectional area of ​​the conductors on the circuit n times.To do this, choose a new conductor, and if not, to a conductor that has been used in parallel connect more n-1 of the same conductor.
4
If you can not increase the voltage by using only one of these operations, use them in combination.For example, in order to raise the voltage on the electrical circuit portion 12 times increase EMF current source 2 times, reduce the length of the conductors 2 times and increase the area of ​​their cross section by 3 times.
Sources:
  • how the tension in areas
Sources:
  • how to increase the voltage to 220 v

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