Microchip dsPIC33数字电源IPFC参考设计

Microchip公司的dsPIC33F数字信号控制器(DSC)具有高性能的CPU和丰富的接口,不需要外接芯片就能组成完整的解决方案,采用dsPIC33F内核,3.3V时有40MIPS的性能, 它的DSP引擎支持快速的控制回路,外设如高速PWM,ADC和模拟比较器特别适用于电源转换.本文介绍了dsPIC33F数字信号控制器(DSC)主要性能,方框图以及采用dsPIC33F的交错功率因子修正(IPFC), 两相IPFC方框图, 平均电流模式框图, IPFC MATLAB® 模式框图, IPFC数字控制系统模型框图和IPFC框图, IPFC系统框图和IPFC参考设计详细电路图.

Implementing advanced software digital control loops for power applications requires a high-performance DSP engine along with specialized peripherals. The high-performance CPU and rich peripherals of the dsPIC DSC devices enable solutions that do not require much in the way of external support chips. In addition to the space and cost-saving benefits found in the dsPIC DSC solutions, special features enable advanced power conversion. The DSP engine can perform single-cycle MAC with data saturation, zero overhead looping and barrel shifting required to support fast control loop execution.
..

查看全文