矢量网络分析仪的基本原理

电荷泵的详细说明，帮助理解及计算电荷泵的电压翻转器(Detailed description of charge pump)

开环的双极性半桥电路仿真电路，运行软件为saber2007，大家可以改变voltage source的频率来改变电压输出。(Open-loop half-bridge circuit simulation of bipolar circuits, running software saber2007, we can change the voltage source to change the frequency of the voltage output.)

亚马逊dynamo平台的整体架构分析，可信度分析做了详尽的阐述，优缺点以及和国内外的其他平台技术的对比(Amazon the dynamo platform overall architecture analysis, credibility analysis to do a detailed exposition of the advantages and disadvantages of home and abroad and other platform technologies compared)

说明：  一个高性能麦克风电路设计，电路具有高保真润色好等等特点(A High Performance Microphone Circuit Design)

MC68340驱动TNT4882，实现GPIB接口通讯(TNT4882 in an MC68340 System)

schema lcd display sc75823

A4988步进电机的驱动程序，使用STM32F407单片机驱动(A4988 stepper motor driver)

说明：  随着STM8的停产,新唐的N76E003 pin对pin替换STM8S003F3P6,而且很便宜,故这个时候拿来替换使用再好不过。(With the discontinuation of STM8, N76E003 pin of Xintang replaced STM8S003F3P6 with pin, which was very cheap, so it would be a good time to replace it.)

资源描述spi 测试接口，用来读写寄存器，经过实际测试，可以正确读写。

rtl8370单芯片8口千兆交换机原理图(Rtl8370 single chip 8 gigabit switch schematic diagram)