Frequency conversion power supplies are pure straight-line waveforms output after AC→DC→AC conversion, with adjustable output frequency and working voltage within a certain range, used for alternating current (AC) power flow in general electricity consumption. An ideal AC switch-mode power supply features stable frequency, stable working voltage, zero internal resistance, and a pure sine wave working voltage waveform (no frame loss). Due to the close similarity of frequency conversion power supplies to ideal AC switch-mode power supplies, they are increasingly being used as standard power system switch-mode power supplies in capitalism, benefiting the provision of high-quality power supply for high-power electrical appliances in natural environments and facilitating objective evaluation of the technical performance of high-power appliances. There are typically two types of frequency conversion power supplies: linear amplifier type and SPWM switch-type power supply. Aviation ground power 2, 36V aviation power supply 1, 400Hz frequency conversion power supply 7, 115/200V power supply 2, 27V DC power supply.
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