Sine amplitude converter technology raises the bar for intermediate bus converters

摘要

The introduction Of commercial dc/dc converters capable of efficiently switching at high frequencies (e.g., 1MHz) brought about significant miniaturization of the dc/dc conversion function. The reduction in switching losses made possible by the invention, in the early 1980s, of zero-current switching (ZCS) and zero-voltage switching (2VS) power conversion technologies, led to an increase in converter operating frequency that translated into a commensurate breakthrough in power density. The power density of dc/dc converters jumped from about 1 Watt/cubic inch to over 20 Watts/cubic inch. The reduction of dc/dc converter volume per unit of power delivered, and the corresponding reduction in dc/dc converter weight, created many new opportunities for the deployment of dc/dc converters and ushered in the era of distributed power architectures (DPA) for electronic systems.