Depending on the nature of the output of the regulator, the regulator is generally divided into AC voltage regulator (AC power supply) and DC voltage regulator (DC power supply) two Air circuit breaker categories. The following highlights the DC power supply, power supply for short.
According to the regulator's work status, the power supply is often divided into two categories: linear power supply and switching power supply. In addition, there is a small power use regulator.
Switching Regulator
Switching regulator using the output stage, repeated switching "on" and "off" state, and the energy storage member (capacitors and inductors) together produce an output voltage. It is adjusted by the output voltage of the sample based on feedback to adjust the switching timing to achieve. In the fixed frequency electri calmete regulator by adjusting the pulse width of the switching voltage regulator switching timing, which is called the PWM control. In the gated oscillator or pulse mode regulator, the switching pulse width and frequency remains constant, however, the output of the switch "on" or "off" by the feedback control.
The switching arrangement and the energy storage member, the resulting output voltage can be greater or less than the input voltage, and a voltage regulator may be used to generate multiple output voltages. In most cases, at the same input voltage and output voltage requirements, pulse (step-down) switching regulator higher than the linear regulator power conversion efficiency. Compensation Compensation --- precision AC power supply (single-phase 0.5kVA and above, mcb circuit breaker the three-phase 1.5kVA and above) have compensation transformer with 110V output.
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