Phase_detection

说明：  在传统矩阵变换器和多电平逆变器的基础上,提出一种新颖的多电平矩阵变换器,介绍了其拓扑结构和工 作原理.多电平矩阵变换器的能量传递,是通过三相输入电压对中点电容充电到一个恒定直流电压而实现的.选择适 当的控制算法和电容电压,能在变换器的两侧合成低次谐波含量小且波形近似于正弦的可控输入/输出电压.对多电 平矩阵变换器进行建模和仿真,并探讨了其输出能控性. ( On the basis of a conventional matrix converter and a multilevel inverter, a novel multilevel matrix converter is proposed, and its topology configuration and principle are introduced. This converter operates as a bidirectional converter and transfers energy between its two sides by charging the midpoint capacitors to a known constant DC voltage level. Proper selection of control algorithms and capacitor voltages helps synthesize controllable and waveforms almost sinusoidal three-phases AC voltage with minimum low-order harmonics at both sides of the converter. The multilevel matrix converter is modeled and simulated with its output controllability discussed. )

说明：  ad9851的单片机程序上位机软件，为广大网友参考(AD9851 program upper computer software, for the majority of netizens reference)

DAC数模转换，SPI串口通讯，单片机stm32，快速简单(DAC digital mode conversion, SPI serial communication, MCU STM32, fast and simple)

说明：  温度烟雾防灾系统，51单片机作为控制器，有DS18B20，MQ-2(Temperature smoke disaster prevention, 51 single chip microcomputer)

Control FI-1236 with Rotary Encoder and display LCD1602(Rotary Encoder control FI-1236 Tuner with LCD1602)

说明：  采用4路红外对管进行循迹，电机控制小车运动。(Four infrared channels are used to track the tube, and the motor controls the motion of the car.)

An exception that indicates that garbage-collector is finalizing a database object that is not explicitly closed.

凌特电池电压采集芯片驱动 LTC6803-2 LTC6804-2(Linear Technology battery voltage acquisition chip driver LTC6803-2 LTC6804-2)

读取标准卡 并在串口打印符合要求的标准卡卡号，同时有其它一些未启用的功能，需要的可以酌情添加。(Read the standard card and print in line with the required standard card number, and some other functions are not enabled, you can add as appropriate.)

说明：  适用于大学生飞思卡尔（恩智浦）智能车比赛(Coded by Set_free kinetis, the program is fit for college students.)