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Basic Classification Of Power Supply
- Feb 07, 2018 -

DC power supply

DC Power (DC) has positive and negative two electrodes, the positive electrode potential is high, the negative potential low, when two electrodes and circuit connectivity, the circuit can maintain a constant potential difference between the two ends, so that the external circuit formed from the positive to the negative electrode of the current. "China Module power Industry development prospects and Investment Strategic Planning analysis report forward" pointed out that the difference between the water level can not maintain steady water flow, and with the help of the water pump continuously from the lower to the high place can maintain a certain water level difference and form a steady flow. Similarly, the electrostatic field generated by the charge alone cannot maintain a steady current, with the help of DC power supply, you can use the anti-static effect (referred to as "non-static power") so that the positive charge from the lower negative potential of the cathode through the internal power supply back to the higher potential of the positive, in order to maintain the potential difference between two electrodes, thus forming a steady current. Therefore, DC power is an energy conversion device which converts other forms of energy into electrical energy supply circuits to maintain steady flow of current.

AC Power

AC power supply is able to provide a stable voltage and frequency power supply called AC stabilized power supply. At present, most of the domestic manufacturers do the work is the AC voltage stability. The following combined with the market of AC voltage regulator briefly describes its classification characteristics. Parameter adjustment (resonant) type of this type of voltage-stabilized power supply, the basic principle of the voltage regulator is LC series resonance, the early emergence of the magnetic saturation voltage regulator belongs to this category. Its advantages are: simple structure, no large number of components, the reliability of a fairly high voltage regulator range is quite wide, anti-interference and overload-resistant ability. The disadvantages are: large energy consumption, noise, bulky and high cost.