PLANAR MAGNETIC DEVICES SOLUTIONS FOR TODAYS HIGH DENSITY DISTRIBUTED POWER APPLICATIONS

摘要

The ever-increasing "bandwidth" demand in today's technology, as applied to networking communications and digital computation has had a dramatic impact upon the arrangements and topologies of modern power generation and distribution. Higher "Bandwidth" requires higher frequency signaling, which, in turn, necessitates faster rise and fall time signal shapes. Because of the unavoidable capacitance surrounding practical copper carrying signals, the trend is to reduce these intervals by decreasing the voltage excursions. At the same time, the energy required has not decreased so current cannot be reduced. The result means a power source of lower voltage, and higher current to drive the lower impedance switching devices. This combination creates the demand for "isolated" power supplies near the load, energized by higher voltage, lower current power distribution networks to minimize the effect of the unavoidable resistance along the network. Thus we have created the demand for networks of localized small DC to DC converters with higher voltage lower current inputs and lower voltage higher current outputs.