switch

用51单片机控制激光测距仪，测出距离并在数码管上显示(MCU control with 51 laser range finder, the distance measured and displayed on digital)

4层电路板阻抗匹配总结，基于si9000 推荐借鉴(PCB Impedance matching)

在传统反激变换器基础上，引入三电平技术，并针对传统反激三电平 DC-DC 变换器电源两端并联的分压电容不均 压的问题，提出了一种交错并联反激式三电平 DC-DC 变换器。该变换器具有电路拓扑简洁，输出只需电容滤波，减小输出滤波器， 提高了变换器功率密度等优点。深入分析了该变换器的工作原理及工作过程，推导了其输入输出关系，和传统的反激两电平变 换器相比，可以得出该并联交错三电平反激变换器能减小输出电容，降低功率开关管电压应力等结论。最后设计了闭环控制策略， 并基于 saber 对电路进行仿真，验证了该拓扑的正确性和输出电容小、功率开关管电压应力低等特点。(This paper, based on the traditional flyback converter, introduces three-level technology, and proposes a Interleaved flyback three-level DC-DC converter to solve the capacitor voltage divider uneven pressure problems of traditional three-level flyback DC-DC power converter. The converter has the advantages of simple topology, just capacitor filter output, reducing the output filter, improves the converter power density, etc. This paper deeply analyzes the working principle and the work process of the converter, derive the relationship between its input and output. Compared to the traditional two-level flyback converter, the Interleaved flyback three-level DCDC converter can reduce the output capacitance, reduce the power switch voltage stress. Finally design the closed-loop control strateg, and simulate circuit in saber. Verify the correctness of the topology and output capacitance, power switches and low voltage stress.)

说明：  飞行器多轴的KK的电控keil源代码HEX(HEX of keil KK code on molor model fly)

舵机转动180 直接调用已经封装号函数有dug(Direct Invocation of Steering Engine Rotation 180)

说明：  用于全桥逆变电路的移相软启控制程序，周期和启动时间均可调节。(Phase-shifting soft-start control program for full-bridge inverters has adjustable cycle and start-up time.)

基于51单片机，将信息通过无线发射装置发送出去，进行通信(Based on 51 single-chip, the information is sent out via radio transmitting device, communication)

Si417发射机的PCB文件以及数据手册、arduino控制si4713的代码文件。(The PCB file of Si417 transmitter and the code file of data manual and Arduino controlling si4713.)

gov information agency is a web application for interacting with the government departments

根据两路模拟电压信号控制输出电压模拟信号(According to the two analog voltage signal control the output voltage analog signal)