Microchip dsPIC33CK256MP506 50W交错LLC转换器解决方案

Microchip公司的dsPIC33CK256MP506是16位数字信号控制器,具有高分辨率PWM和CAN灵活的数据(CAN FD).DSC具有16位数据改良的哈佛架构,具有增强的指令集,包括重要支持数字信号处理器(DSP).CPU具有24位指令字,有可变长度操作码字段.程序计数器(PC)是23位宽和寻址高达4Mx24位用户程序存储器空间. 指令预取机制有助维持吞吐量,提供可预测的执行.大多数指令在单个周期有效执行速率内执行,而例外情况的指令改变程序流程,双字传送指令(MOV.D),PSV接入和表格指令.50W交错LLC转换器开发板是通用的开发板,支持基于dsPIC33器件的快速原型板和代码开发.开发板在初级边提供相同的半桥级LLC箱电路,在次级边提供倍压整流.开发板提供有条理的区块,包括输入滤波器,功率级,AUX电源,Microchip公司的最新的数字功率插入模块(DP PIM)匹配的插座,人机接口(HMI)和测试点.开发板的输入电压为36V-42VDC,AUX电源输入工作电压为16V-55VDC,每路最大输出功率30W,最大输出电压为15V, 每相输出电流为3A,开关频率大于800kHz,初级和次级的隔离电压500VDC.板的尺寸为150mmx80mm.本文介绍了dsPIC33CK256MP508主要特性,框图和推荐连接图, CPU框图以及50W交错LLC转换器开发板主要特性,框图和辅助电源框图,电路图,材料清单和PCB设计图.

The dsPIC33CK256MP508 family CPU has a 16-bit (data) modified Harvard architecture with an enhanced instruction set, including significant support for Digital Signal Processing (DSP). The CPU has a 24-bit instruction word with a variable length opcode field. The Program Counter (PC) is 23 bits wide and addresses up to 4M x 24 bits of user program memory space.

An instruction prefetch mechanism helps maintain throughput and provides predictable execution. Most instructions execute in a single-cycle effective execution rate, with the exception of instructions that change the program flow, the double-word move (MOV.D)

instruction, PSV accesses and the table instructions.

Overhead-free program loop constructs are supported using the DO and REPEAT instructions, both of which are interruptible at any point.

Operating Conditions

• 3.0V to 3.6V, -40°C to +125°C, DC to 100 MIPS

• 3.0V to 3.6V, ...