Microchip dsPIC33 Explorer 16数字电源开发方案

Microchip公司的dsPIC33FJxxGSxx系列是高性能16位数字信号控制器,包括有扩展的DSP功能和高性能16位微控制器(MCU)架构.工作电压3.0-3.6V时的性能高达40MIPS,主要用于AC/DC转换器,汽车电子HID,电池充电器,DC/DC转换器,数字照明,电磁炉,LED镇流器,可再生能源以及UPS等.本文介绍dsPIC33FJxxGSxx系列主要特性,方框图, 多种转换构成框图以及Explorer 16数字电源开发板电路图.

dsPIC33主要特性:

Operating Range:

• Up to 40 MIPS operation (at 3.0-3.6V):

- Industrial temperature range (-40℃ to +85℃)

- Extended temperature range (-40℃ to +125℃)

High-Performance DSC CPU:

• Modified Harvard architecture

• C compiler optimized instruction set

• 16-bit wide data path

• 24-bit wide instructions

• Linear program memory addressing up to 4M instruction words

• Linear data memory addressing up to 64 Kbytes

• 83 base instructions: mostly 1 word/1 cycle

• Two 40-bit accumulators with rounding and saturation options

• Flexible and powerful addressing modes:

- Indirect

- Modulo

- Bit-Reversed

• Software stack

• 16 x 16 fractional/integer multiply operations

• 32/16 and 16/16 divide operations
..

查看全文