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AC Voltage Stabilizer Classification And Characteristics:
Time: 2011-12-20 19:19:13   Count: 1851
Be able to provide a stable power supply voltage and frequency stability, said AC power source. Currently the majority of the work done by domestic manufacturers AC voltage stability. The following are AC power supply with the market and some brief classification features. 

1, parameter adjustment (resonance) type 
Such is the basic principle of power supply series resonant LC early emergence of magnetic saturation regulator fall into this category. It has the advantage of simple structure, without many components, the reliability of  high voltage range is quite wide , strong anti-jamming and anti-overload. The disadvantage is that energy consumption, noise, too much weight and high cost. Development on the basis of the principle of magnetic saturation on the parameters of the regulator into the formation of the 1950s and has been popular "magnetic amplifier to adjust the electronic exchange regulator" (ie, 614 type) are such principles exchange regulator. 
2, the mechanical regulator type 
That is driven by a servo motor carbon brush autotransformer winding movement of the sliding surface, changing the ratio of Vo for Vi to achieve adjustment and stable output voltage. This kind of regulator can be from a few hundred watts to several kilowatts. It is characterized by simple structure, low cost, output waveform distortion; but because of the carbon brush sliding contacts is easy to produce a spark, causing damage and even burn brush and failure; and the slow speed voltage regulation. 
3, change the tap type 
The auto-transformer taps made of multiple fixed by the relay or triac (solid state relay) as a switching device 10, automatically change the wiper position, in order to achieve a stable output voltage. The advantage is that kind of regulator circuit is simple, wide voltage range (130V-280V), high efficiency (≥95), low prices. The disadvantage is the low voltage accuracy (± 8 ~ 10) short working life, it is suitable for family to power the air conditioner. 
4, high-power compensation type - purifier regulator (including precision regulator) 
It links with the compensation to achieve a stable output voltage, easy to implement computer control. Its advantage is a good anti-jamming performance, high voltage accuracy (≤ ± 1), fast response (40 ~ 60ms), the circuit is simple, reliable work. The disadvantages are: low-frequency oscillation phenomenon with computers, program-controlled switches and other nonlinear loads; input side current distortion degree, low active power factor; the output voltage on the input voltage phase shift. Higher requirements for anti-interference function units in the city application is appropriate, when the computer power supply, you must use the computer for about two to three times the total power of the regulator to use. Because with a regulation, interference, fast response, moderate grid, etc., so widely used. 
5, switching AC power supply 
It is applied to a high-frequency pulse width modulation technique, the difference between the general switching power supply is its output with the input side must be above the frequency, the phase of the AC voltage. The output voltage waveform has a quasi-square wave, type wave, sine wave, etc. , uninterruptible power supply (UPS) market, which deprived build power and charger is an AC power supply switching regulator is good, control is strong, easy to implement intelligent, is very promising exchange power supply. Because the circuit complexity, higher prices, so promotion is slower. 

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