基于PIC16F877的DNB电源系统时序发生器的研究与设计

The Design of Timing Logical Circuit of DNB Power Supply Based on PIC16F877 Microchip

介绍了一种可以提供多路输出可控周期和脉宽的脉冲时序电路,采用了PIC16F877单片机简化了复杂的电路结构,并给出了外围的硬件电路和单片机的程序设计。为满足设计要求,脉冲时序电路采用两种设定方式:本机所带的小键盘设置和上位机通过RS485通讯口对其进行设置。

This article introduces one circuit that can provide many tunes to output different kinds pulse.This design of circuit is based on microchip PIC16F877,so it make the design simply. This article also provides how to design the software and hardware. In order to meet the needs of the system,we use two methods to set this circuit:the keyboard and the sign of PC.