precision, Low Noise, CMOS, Rail-to-Rail, Input/Output Operational Amplifiers Data Sheet AD8605/AD8606/AD8608The AD8605, AD8606, and AD86081 are single, dual, and quad rail-to-rail input and output, single-supply amplifiers. They feature very low offset voltage, low input voltage and current noise, and wide signal bandwidth. They use the Analog Devices, Inc. patented DigiTrim® trimming technique, which achieves
标签： 运算放大器
上传时间： 2022-02-02
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The PW5300 is a current mode boost DC-DC converter. Its PWM circuitry with built-in 0.2Ω powerMOSFET make this regulator highly power efficient. The internal compensation network alsominimizes as much as 6 external component counts. The non-inverting input of error amplifierconnects to a 0.6V precision reference voltage and internal soft-start function can reduce the inrushcurrent. The PW5300 is available in the SOT23-6L package and provides space-saving PCB for theapplication fields
标签： pw5300
上传时间： 2022-02-11
上传用户：jiabin
电阻-电容-电感 Altium Designer AD原理图库元件库CSV text has been written to file : 0.1 - 电阻-电容-电感.csvLibrary Component Count : 35Name Description----------------------------------------------------------------------------------------------------C 贴片电容C-MLCC 独石电容CBB CBB电容CC 瓷片电容CE 直插电解电容CE_SMD 贴片电解电容CS 直插固态电容CS_SMD 贴片固态电容CT 贴片钽电容CX 安规X电容CY 安规Y电容L 小功率贴片电感L-AL 色环电感L-CDRH 功率屏蔽电感L-MR 功率磁环电感L-NR NR磁胶电感L-PK 工字电感L-SMD CD系列贴片线绕功率电感L-UU 共模电感PTR902 双联电位器带开关R 贴片电阻R SIP9 9脚直插排阻R-8P4R 贴片排阻R-I 电流检测电阻R-precision 精密贴片电阻R-S 色环电阻RG 光敏电阻RK0971221 双联电位器带开关RP 单联电位器RP-SMD 贴片电位器RP-WH148 双联电位器RT 热敏电阻R_MPR 5W无感水泥电阻R_VSR 压敏电阻TMR 隧道磁电阻
标签： 电阻元件 altium designer
上传时间： 2022-03-13
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在半导体制冷技术的工作性能及其优缺点研究的基础上,设计了以单片机为核心控制元件,以TEC1-12706为执行元件的半导体制冷温度控制系统。采用高精度分段式PID控制算法配合PWM输出控制的方法实现温度控制;选择数字传感器DS18B20为温度检测元件,还包含1602液晶显示模块、按键调整输入模块和H桥驱动模块等。实际测试表明,该系统结构简单易行,操作方便,工作性能优良,同时针对该系统专门设计的温控算法,使半导体制冷器能更好地适应不同工况而充分发挥其制冷制热工作特性。Based on the study of the performance and advantages and disadvantages of thermoelectric cooler(TEC)technology,a thermoelectric cooling temperature control system with single-chip microcomputer as the core control element and TEC1-12706 as the executive element was designed. High precision piecewise PID control algorithm combined with PWM output control method is adopted to realize temperature control. The digital sensor DS18B20 is selected as the temperature detection element. It also includes 1602 LCD module,key adjustment input module and H bridge drive module. The actual test shows that the system has simple structure,convenient operation and excellent performance. Meanwhile,the temperature control algorithm specially designed for the system can make the semiconductor cooler better adapt to different working conditions and give full play to its refrigeration and heating characteristics.
上传时间： 2022-03-27
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温度控制如今已成为当代社会研究的热点之一,而温度检测在现代设备参数检测中也是一项极其重要的技术,应用十分广泛。与传统的测温方法相比,红外测温方法具有时间短、精度高、使用简单方便等优点。本文以环境温度为被测对象,设计了以STC89C52单片机为控制中心的红外测温装置,能够实现对目标温度的实时采集、处理、显示和报警等功能。本设计主要是由STC89C52单片机、红外测温传感器、LCD1602液晶显示器、按键和蜂鸣器等部分组成,采用非接触的方式对目标温度进行实时检测。Temperature control has become one of the hotspots in contemporary social research,and temperature detection is an extremely important technology in modern equipment parameter detection.Compared with traditional method,the infrared temperature measuring method has advantages of short time,high precision and convenient operation,etc.This paper consider environment temperature as research objects and designs an infrared temperature measuring device which employs the STC89C52singlechipas-control center,and it can realize timely collection,processing,display and alarm function of the target temperature.The design is mainly composed of STC89C52 singlechip,infrared temperature sensor,LCD1602monitor,keys and buzzer,etc.This design detects the target temperature by non-contact method.
上传时间： 2022-03-27
上传用户：jiabin
数字示波器功能强大,使用方便,但是价格相对昂贵。本文以Ti的MSP430F5529为主控器,以Altera公司的EP2C5T144C8 FPGA器件为逻辑控制部件设计数字示波器。模拟信号经程控放大、整形电路后形成方波信号送至FPGA测频,根据频率值选择采用片上及片外高速AD分段采样。FPGA控制片外AD采样并将数据输入到FIFO模块中缓存,由单片机进行频谱分析。测试表明:简易示波器可以实现自动选档、多采样率采样、高精度测频及频谱分析等功能。Digital oscilloscope is powerful and easy to use, but also expensive. The research group designed a low-cost digital oscilloscope, the chip of MSP430F5529 of TI is chosen as the main controller and the device of EP2C5T144C8 of Altera company is used as the logic control unit. Analog signal enter the programmable amplifier circuit, shaping circuit and other pre-processing circuit. The shaped rectangular wave signal is sent to FPGA for measure the frequency. According to the frequency value to select AD on-chip or off-chip high-speed AD for sampling. FPGA controls the off-chip AD sampling and buffers AD data by FIFO module. The single chip microcomputer receives the data, and do FFT for spectrum analysis. The test shows that the simple oscilloscope can realize automatic gain selection, sampling at different sampling rates, high precision frequency measurement and spectrum analysis.
上传时间： 2022-03-27
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电学中的测量技术涉及范围非常广,电流测量在电学计量中占有非常重要的位置。如何精确地进行电流测量是精密测量的一大难题。传统的电流检测电路多采用运算放大芯片与片外电流检测电路相结合的方式,电路集成度很低,需要较多的接口和资源才能完成对电路的检测。本文把所有电路部分都集成在一块芯片上,包括检测电阻,运算放大器电路及模拟转数字转换电路,从而在电路内部可以进行电流检测,使电路更好的集成化。前置电路使用二级共源共栅结构的运算放大器,减小沟道长度调制效应造成的电流误差。10位SAR ADC中采用电容驱动能力强的传输门保证了模数转化器的有效精度。比较器模块采用再生锁存器与迟滞比较器作为基础单元组合解决精密测量的问题。本设计可以作为嵌入芯片内的一小部分而检测芯片中的微小电流1mA~100mA,工作电压在1.8v左右,电流检测精度预期达到10uA的需求。The measurement technology in electricity involves a wide range,and current measurement plays a very important position in electrical measurement.How to accurately measure current is a big problem in precision measurement. The traditional current detecting circuit adopts the combination of the operational amplifier chip and theoff-chip current detecting circuit, The circuit integration is very low, and more interfaces and resources are needed tocomplete the circuit detection.This topic integrates all the circuit parts into one chip, including detection resistance, operational amplifier circuit andanalog to digital conversion circuit. Highly integrated circuit makes the external resources on the chip more intensive,so that current detection can be carried out inside the circuit, so that the circuit can be better integrated. Thefront-end circuit of this project uses two-stage cascade operational amplifier and cascade tube to reduce the currenterror caused by channel length modulation effect. In 10-bit SAR ADC, the transmission gate with strong capacitivedriving ability ensures the effective accuracy of the analog-to-digital converter. Comparator module uses regenerativelatch and hysteresis comparator as basic unit to solve the difficult problem of precision measurement. This topic can beused as a small part of the embedded chip to detect the micro-current in the chip 1 mA~100 mA, the working voltageis about 1.8v, and the current detection accuracy is expected to reach the requirement of 10 uA.
上传时间： 2022-04-03
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本文首次设计并验证了基于macom三合一芯片设计的光模块电路,该电路旨在提供一种满足SFF-8472中规定的数字诊断功能的低成本SFP+模块。电路采用激光器驱动、限幅放大器、控制器以及时钟恢复单元集成的单芯片,在保证高精度数字诊断功能基础上,实现了低成本高可靠的特点。该电路在光接收接口组件与激光器驱动和限幅放大器单元的限幅放大器部分之间接入滤波器来提高模块的灵敏度及信号质量。在控制器单元的数字电位器的引脚上采用外加电阻的方式避免出现上电不发光的故障问题。该研究结果为下一代SFP-DD光模块设计与开发工作,奠定了一定的理论与实践基础。This paper designs and validates the optical module circuit based on the MACOM Trinity chip for the first time.This circuit aims to provide a low-cost SFP module which meets the digital diagnosis function specified in SFF-8472.The circuit uses a single chip integrated with laser driver,limiting amplifier,controller and clock recovery unit.On the basis of ensuring high precision digital diagnosis function,it achieves the characteristics of low cost and high reliability.The circuit connects a filter between the optical receiving interface module and the limiting amplifier part of the laser driver and limiting amplifier unit to improve the sensitivity and signal quality of the module.The pin of the digital potentiometer in the controller unit is equipped with an external resistance to avoid the problem of power failure.The research results lay a theoretical and practical foundation for optical module design in high-speed data center.
上传时间： 2022-04-03
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本文设计了一种磁致伸缩位移传感器,介绍了该磁致伸缩位移传感器的测量原理,通过结构优化设计提高了仪器的性能,详述了硬件电路设计及实现方法,完成了软件设计,实现了高压充电、问询脉冲加载、时间测量及滤波等功能,并通过实验对其性能进行了验证。所研制的磁致伸缩位移传感器具有测量精度高、长期稳定性好等特点,满足了大量程、高精度、恶劣环境等测量的要求。A kind of sensor based on magnetostrictive principle is designed.The measuring principle of the magnetostrictive displacement sensor is introduced,the performance of the instrument is improved by the structural optimization design,and introduced the hardware circuit design and the realization method,completed the software design,realized the functions of the high voltage charging,inquiries pulse loading,time measurement and filtering,and its performance is verified through the experiment.The magnetostrictive displacement sensor has the characteristics of high measuring precision.The sensor meets the requirements of large range,high precision,poor environment and so on.
标签： 位移传感器
上传时间： 2022-04-06
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本文提出基于AD2S1210的旋变信号转换电路,给出了具体的电路实现方法和配置方法.相比以往的RDC方案,本系统具有精度高,设计灵活,可靠性高等特点,可广泛应用于各种伺服系统中.In this paper, the switching signal conversion circuit based on ADS1210 is proposed, and the specific circuit implementation and configuration method are given. Compared with the previous RDC scheme, this system has the characteristics of high precision, flexible design and high reliability, and can be widely used in various servo systems.
标签： ad2s1210
上传时间： 2022-05-04
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