AN2264三相与VIPer12A低功耗应用的开关电源

AN2264三相与VIPer12A低功耗应用的开关电源

AN2264
APPLICATION NOTE
Three-Phase SMPS for low power applications
with VIPer12A

Introduction
Some industrial applications require a so called 'ultra-wide' input voltage range (between 90
and 450Vac). Due to the variations of the main, input voltages up to 450Vac are typical in three-
phase applications. A maximum input voltage of 450Vac requires the use of very high voltage
components, increasing cost, size, the weight and the overall complexity of the power supply.
Hence, the market is looking for solutions with low cost and goo