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[SCM] AD590 DL : 0: 介绍了集成温度传感器AD590，给出了AD590测量热力学温度、摄氏温度、两点温度差、多点最低温度、多点平均温度的具体电路，并以节能型温、湿度控制系统为例介绍了利用AD590测两点温差电路的应用。-Introduced an integrated temperature sensor AD590, given AD590 measuring thermodynamic temperature, Celsius temperature, two temperature difference, multi-point minimum temperature, average temperature of the specific multi-point circuits, and to energy-efficient temperature and humidity control system as an example, introduced the use of two AD590 temperature measurement circuit applications.
Date : 2025-12-23 Size : 32kb User : simon
[SCM] 2 DL : 0: 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.
Date : 2025-12-23 Size : 45kb User : haha
[SCM] CO2 DL : 0: 用TI430最小系统开发的瓦斯检测报警器，本设计的特点是节能，间断式检测，休眠期间传感器不供电，检测期间由PWM降压自动为传感器提供稳定的电压，达到节能的效果-Minimum system developed by TI430 gas detection alarm, the characteristics of this design is energy saving, intermittent detection sensor is not powered during the dormant period is automatically detected by the sensor provides stable voltage PWM buck to achieve energy-saving effect
Date : 2025-12-23 Size : 13kb User : 王坤