Power transformer is a static electrical equipment, is used to a certain value of the AC voltage (current) becomes the same frequency as the other one or more different voltage values (current) device.
2013年8月2日星期五
The difference between the regulator and transformer
We know that electricity is able to generate a magnetic field, the magnetic field also can be converted into electricity. Put on a coil with alternating current, the
alternating magnetic field is generated, then the alternating magnetic field through the other coil, the other coil will induce a voltage, which is the principle of
the transformer, the transformer and the two number number of turns of the coil; simply, the use of magnetic coupling transformer principle, all the original secondary
winding (coil) composed of the Voltage stabilizer across the coil is proportional to the size and the number of turns, so the primary and secondary coil turns This ratio
determines the transformer turns ratio. Obviously adapter is not the role of regulator, because the secondary voltage with primary voltage changes.
Regulator is to use the principle of negative feedback, so to speak, the tap water faucet open the half, at the head of the outlet fitted with a sensor that detects
the amount of water, if the water volume, and automatically will tap off a small point, if a small amount of water, it will automatically open a large number of taps,
so that the amount of water remains constant. Regulators principles generally true, there is one in the regulator can detect a change in output voltage circuit (error
amplifier inverting input resistor divider sampling circuit, which can now be reduced to only one integrated chip), when the output voltage changes, the output voltage
change is detected by the chip circuitry to provide feedback to the servo motors, and then by PW motor driven arm automatically adjust the location of the brush, so
that the output voltage is stable, which is the easiest regulator.
In summary said, there is no power transformers role of regulator, but the use of negative feedback can be designed with the role of regulator of the transformer, which
is no problem, but the general power transformer is not the case. The use of the transformer in a certain range of output voltage change is small, and we have not a
concept of said regulator.
All regulators, have taken advantage of the same technology to achieve a stable output voltage, output voltage by connecting to the error amplifier inverting input
resistor divider sampling error amplifier inverting input connected to a reference voltage. Always try to force the error amplifier input equal to its ends. To this
end, it provides the load current to ensure stable output voltage (ie, negative feedback)
Regulator type more common regulator include: automatic AC voltage regulator, purifying power exchange regulator, regulator parameters, high-power compensation power
regulator, non-contact smart power supply .
Telecommunications sector electromechanical systems through modern electronic technology and equipment to achieve the modernization of management, which involves
communication technology, electronic technology, automatic control, computer technology and other subjects, with technology-intensive, high-tech, high-performance
features. Power is the basis of mechanical and electrical equipment, power supply out of the question, will bring a series of problems, or even interrupted. Therefore,
under realistic conditions on many devices, including electrical equipment, precision instruments and equipment imports made stringent requirements, the relevant
departments in order to improve the reliability of the power supply system, in front of these devices increase the corresponding voltage regulator, power supply, power
compensated power voltage regulator with its economic and practical advantages in the distribution of widely used.
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