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技术资料 基于滑模观测器与分数阶锁相环的无传感器PMSM矢量控制

Abstract: A sliding mode observer and fractional-order phase-locked loop (FO-PLL) method is proposed for the sensorless speed control of a permanent magnet synchronous motor (PMSM).The saturation function is adopted in order to reduce the chattering phenomenon caused by the sliding mode observer. In ...
https://www.eeworm.com/dl/835787.html
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单片机编程 一种实用的微机自动配料秤系统

一种实用的微机自动配料秤系统:介绍一种由单片机构成的配料秤。叙述了秤的传感器、变送器、信号的变换、硬件原理、软件流程以及和DCS 系统构成的单回路调节系统,此系统可广泛地应用于各行业的配料控制中。关键词:配料秤 单片机 单回路调节系统 DCS 系统 Abstract :A proportioning weigher based on single chip compute ...
https://www.eeworm.com/dl/502/31320.html
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Symbian This Symbian C++ code example demonstrates how to easily use the onboard camera with zoom and autofo

This Symbian C++ code example demonstrates how to easily use the onboard camera with zoom and autofocus, utilising an accompanying CameraWrapper made by Forum Nokia. The Camera Wrapper supports all Nokia s S60 devices based on S60 3rd Edition and newer, providing a unified interface for various Symb ...
https://www.eeworm.com/dl/675/473214.html
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书籍 Stochastic Geometry and Wireless Networks

A wireless communication network can be viewed as a collection of nodes, located in some domain, which can in turn be transmitters or receivers (depending on the network considered, nodes may be mobile users, base stations in a cellular network, access points of a WiFi mesh etc.). At a given time, s ...
https://www.eeworm.com/dl/522131.html
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技术资料 基于单片机控制的音频放大器的设计

本文设计了基于单片机控制的音频放大器系统,该系统由控制器模块、调音与音频放大模块、音源选择模块、频谱模块、温度检测与风扇控制模块、按键控制模块、显示模块、指示模块和电源模块组成。系统实现了音频放大、音量调节、音源选择、频谱显示、功能显示、功放温度监控等功能。This paper designs an audio amplifier syste ...
https://www.eeworm.com/dl/898966.html
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技术资料 多路温度巡检仪1

多路温度巡检仪采用ctrtex-M3内核的微处理器stm32为主控制器,配合数字式温度传感器、NRF24L01无线模块、液晶显示屏、LED 、及按键等组成。DS18B20温度传感器采用单总线技术实现和stm32的通信。采用NRF24L01无线传输将设备一采集到的温度信息传递给设备二。设备二的CPU将接收到的温度信息与设定的报警温度进行比较,如果大 ...
https://www.eeworm.com/dl/848111.html
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DSP编程 基于DSP的车载雷达测速系统设计

针对运行中火车测速运用多普勒效应采用DSP 设计雷达测速系统并阐述了其基本设计思想与工作原理给出系统硬件软件设计结构和原理图改善了原有光电测速精度提高了系统工作稳定性和可靠性经实验证明DSP 采集板工作稳定测速效果好关键词DSP; 雷达测速; 多普勒效应 On Board DSP-Based Radar Speed Measurement System TANG Wei, ...
https://www.eeworm.com/dl/516/32011.html
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技术管理 本文简要介绍了集成电路MAX038的性能

本文简要介绍了集成电路MAX038的性能,并给出了以MAX038波形产生器为核心具有四种输出波形的函数 信号发生器的设计方案。用这种方法设计的信号发生器具有结构简单、成本低、体积小等特点,很好地满足 了一般的实验要求。 关键词:集成电路 信号发生器 频率 Abstract:The performance ofIC_MAX038 was introduced briefly i ...
https://www.eeworm.com/dl/642/188141.html
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软件设计/软件工程 最受欢迎的Joomla 社区用户管理收费插件 Community Builder 1.2 RC2 的电子书

最受欢迎的Joomla 社区用户管理收费插件 Community Builder 1.2 RC2 的电子书,仅提供给付费会员 Community Builder suite (CB) extends the Joomla! user management system. Key features: extra fields in profile, enhanced registration workflows, user lists, connection paths between users, admin defined tabs a ...
https://www.eeworm.com/dl/684/356572.html
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书籍源码 A novel met hod t o p artially compensate sigma2delta shap ed noise is p rop osed. By injecting t he

A novel met hod t o p artially compensate sigma2delta shap ed noise is p rop osed. By injecting t he comp en2 sation cur rent int o t he p assive loop f ilte r during t he delay time of t he p hase f requency detect or ( PFD) , a maximum reduction of t he p hase noise by about 16dB can be achieved. ...
https://www.eeworm.com/dl/532/387645.html
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