前言 为了处理日益增加的、更复杂的实时计算,今天的通信系统采用了大量的高功率计算IC,包括CPU、FPGA和存储器。对计算速度增长的需要促使时钟频率和供电电流的相应增加,有些设备的供电电流已经超过100A。随着供电电流的增加,供电电压正朝1V降低,这主要是因为计算设备此时可以用很好的线宽工艺来制造。此外,低压、大电流应用对功耗也是很敏感的。对电源设计者来讲,使用线性稳压器是不明智的。高效的供电方案应使用高性能的开关结构。 Preface To handle the ever-increasing and more complex real-time calculations, today’s communications systems employ a large number of high-power computing ICs, including CPUs, FPGAs, and memory. The need for increased computational speed has led to a corresponding increase in clock frequency and supply current, some devices having supply currents in excess of 100A. As the supply current increases, the supply voltage is decreasing towards 1V, mainly because the computing device can now be manufactured with a very good line-width process. In addition, low-voltage, high-current applications are also sensitive to power consumption. For power designers, using a linear regulator is unwise. Efficient power supply scheme should use high-performance switch structure.