Direct current (DC) power supplies are converted from alternating current (AC) or three-phase power inputs, producing DC voltages ranging from thousands to tens of thousands of volts, with output power ranging from hundreds to thousands of watts, typically featuring stable voltage or current. The original operation of DC high-voltage power supplies involved stepping up AC or three-phase power to high voltage using a power frequency transformer, followed by rectification and filtering to obtain DC high voltage. Due to the lower frequency, these power supplies tend to be larger and heavier, with lower conversion efficiency and stability. With the advancement and maturity of switch-mode power supply technology, DC high-voltage power supplies developed using high-frequency switching technology and the characteristics of high-voltage power supplies have become mainstream. DC power supplies are characterized by their small size, light weight, high efficiency, high power output, low ripple, high and low storage stability, and high reliability. To meet diverse customer requirements, suppliers have developed some DC high-voltage power supplies in an automatic voltage and current stable conversion form. The power supply automatically adapts to the transition between constant voltage and constant current zones based on the settings for electronic loads, output voltage, and output current. Aviation ground power 2, 36V aviation power 1, 400Hz frequency converter power supply 7, 115/200V power supply
1. In the constant pressure area, the desired stable voltage can be achieved by adjusting the output voltage settings. 2. The input constant area can be set to provide the output current needed for stable current adjustment, and it can also provide constant power output.
