220V city power enters the EMI (transient filter circuit), first passing through the primary EMI (comprising capacitors and ferrite inductors), and then through the secondary EMI (consisting of MOV resistors, ferrite coils, and fuse tubes). High-frequency and pulse interference in the current are filtered out by the "x" capacitor (metalized polyester capacitor), resulting in an AC current without peaks or low voltage. Aeronautical Power
Low-voltage AC current enters the rectifying circuit, flows through the rectifier bridge (comprised of four diodes or a single component), and is rectified, resulting in a unidirectional pulsating DC voltage, known as pulsating voltage.
The pulsating voltage flows into the main capacitor, passing through polyester and ceramic capacitors to filter out high-frequency and pulse disturbances. It then passes through the main capacitor to prevent interference, producing a direct current with voltage fluctuations, known as ripple DC.
The direct current (DC) enters the transformer with ripple on both the primary and secondary sides. It first undergoes voltage stabilization in the transformer, then proceeds to the secondary side. Here, it is stabilized and rectified through a secondary side voltage stabilization IC chip, voltage diodes, and a high-power Schottky rectifier bridge. After passing through polyester capacitors for filtering, it yields a pure low-voltage DC power supply. 400HZ power supply.
