随着电磁阀在工业和日常应用的增多,其功耗越来越被人们所重视。通过对电磁阀驱动电路的研究,设计一套电磁阀节能驱动电路。不仅提高了电磁阀的响应时间,更重要的是降低了功耗,使电磁阀由工作在大电流状态下,变成大电流启动小电流维持的工作状态。减少了由电流过大引起的电磁阀线圈过热,增加了电磁阀的安全性。The power consumption of an electromagnetic valve is drawing increasingly more attentiori as it is widely used in industrial production and daily life. In this study, an energy - saving driving circuit of electromagnetic valves was designed. It can make an electromagnetic valve to start with a high current while work with a low current; thereby the power consumption can be reduced. Besides, it can shorten the response time of an electromagnetic valve and improve the security of the valve.
上传时间： 2022-04-16
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HC-SR501 High Sensitivity Human Infrared Sensor Module Pyroelectric PCB.doc人体红外感应原理图
标签： 红外感应
上传时间： 2022-04-18
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Springer模拟电路设计丛书，《清华版双语教学用书·模拟集成电路设计精粹》作者首先对MOST和BJT两种器件模型进行了分析和比较，然后以此为两条线索，分别介绍了相应的基本单元电路和各类放大器的详细分析，随后的章节分别研究噪声、失真、滤波器、ADC／DAC和振荡器电路，每一章都结合MOST和BJT两种类型电路进行分析比较。《清华版双语教学用书·模拟集成电路设计精粹》一方面侧重于基础知识，对模拟和混合信号集成电路中的许多重要概念以直观形象的语言进行了描述。另一方面又侧重介绍与现代集成电路工艺相关的最新电路的研究方向和热点。Next-Generation ADCs, High-Performance Power Management, and Technology Considerations for Advanced Integrated Circuits
上传时间： 2022-04-19
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HDMI-Definition Multimedia Interface Specification Version 2.0This document constitutes the Version 2.0 specification for the High-Definition Multimedia Interface (HDMI Specification Version 2.0). This Specification incorporates HDMI Specification Version 1.4b by reference and defines additional and improved functionality. Mechanical, behavioral, and protocol requirements necessary for compliance are described for Sources, Sinks, Repeaters, and Cables.
标签： hdmi
上传时间： 2022-04-22
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为适应双向DC/DC功率变换的电流采样需求,一种高精度高边电流采样电路被提出。其基本思想是在功率电路的高边串入采样电阻,借助电流镜原理并引入偏置电流电路,将双向电流均转换为正向电压输出。通过理论分析与仿真结合的方法对电流镜采样原理及4种不同的偏置电流电路方案进行对比,最后通过实验数据验证了高精度高边电流采样电路的有效性。实验数据表明,该采样电路可在-25~75℃的温度工作范围内,针对-10~＋10 A范围内的电流采样实现优于5%的采样精度。Current sensing plays an important role in controlling,monitoring or protection functions of power systems.To meet the current sensing requirement of bidirectional DC/DC converters,a high-accuracy bidirectional current sensing circuit is proposed.The proposed current sensing circuit inserts a resistor in the path of the current to be sensed,while the current mirror and biased current circuit are introduced.Therefore,the bidirectional current can be expressed by positive voltage.By theoretical analysis and simulation,the sampling theory is analyzed and four biased current circuits are compared.At last,experimental results verified the proposed method.It is demonstrated that the proposed current sensing circuit can achi...
上传时间： 2022-04-22
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The GL823K integrates a high speed 8051 microprocessor and a high efficiency hardware engine for the best data transfer performance between USB and flash card interfaces. Its pin assignment design fits to card sockets to provide easier PCB layout. Inside the chip, it integrates 5V to 3.3V regulator, 3.3V to 1.8V regulator and power MOSFETs and it enables the function of on-chip clock source (OCCS) which means no external 12MHz XTAL is needed and that effectively reduces the total BOM cost.
上传时间： 2022-04-27
上传用户：qdxqdxqdxqdx
该步进电机驱动器又称为EasyDriver，EasyDriver能够为两级步进电机提供大约每相750mA（两极一共1.5A）的驱动。它默认设置为8步细分模式（所以如果你的电机是每圈200步，你使用EasyDriver时默认为每圈1600步），更多细分模式可以通过将MS1或MS2两个接脚接地进行设置。这是一种基于Allegro A3967驱动芯片的细分断路器。对于此设计的完整规格，请查阅A3967的参数表。它的最大每相电流从150mA到750mA。可以采用的最大驱动电压大概是30V，其中包括板载5V的调压器，所以只需要一个电源。质优价廉，这玩意儿只要十几美元，比你自己制作电路板更便宜。步进电机驱动器设计特色：· A3967 Microstepping Driver· MS1 and MS2 pins broken out to change microstepping resolution to full, half, quarter and eighth steps (defaults to eighth)· Compatible with 4, 6, and 8 wire stepper motors of any voltage· Adjustable current control from 150mA/phase to 700mA/phase· Power supply range from 6V to 30V. The higher the voltage, the higher the torque at high speeds
上传时间： 2022-04-27
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STM32 F0系列 MCU 集成库 原理图库 PCB封装库文件CSV text has been written to file : STM32 F0.csvLibrary Component Count : 17Name Description----------------------------------------------------------------------------------------------------STM32F050C4T6A ARM Cortex-M0 32-bit RISC core (48 MHz max), 16kB Flash, 4 kB Internal RAM, 39 High Current I/Os, -40 to +85癈, 48-Pin LQFP, TraySTM32F050C6T6 ARM Cortex-M0 32-bit RISC core (48 MHz max), 32kB Flash, 4 kB Internal RAM, 39 High Current I/Os, -40 to +85癈, 48-Pin LQFP, TraySTM32F050C6T6A ARM Cortex-M0 32-bit RISC core (48 MHz max), 32kB Flash, 4 kB Internal RAM, 39 High Current I/Os, -40 to +85癈, 48-Pin LQFP, TraySTM32F050K4U6A ARM Cortex-M0 32-bit RISC core (48 MHz max), 16kB Flash, 4 kB Internal RAM, 27 High Current I/Os, -40 to +85癈, 32-Pin UFQFPN, TraySTM32F050K6U6A ARM Cortex-M0 32-bit RISC core (48 MHz max), 32kB Flash, 4 kB Internal RAM, 27 High Current I/Os, -40 to +85癈, 32-Pin UFQFPN, TraySTM32F051C4T6 ARM Cortex-M0 32-bit RISC core (48 MHz max), 16kB Flash, 4 kB Internal RAM, 39 High Current I/Os, -40 to +85癈, 48-Pin LQFP, TraySTM32F051C6T6 ARM Cortex-M0 32-bit RISC core (48 MHz max), 32kB Flash, 4 kB Internal RAM, 39 High Current I/Os, -40 to +85癈, 48-Pin LQFP, TraySTM32F051C8T6 ARM Cortex-M0 32-bit RISC core (48 MHz max), 64kB Flash, 8 kB Internal RAM, 39 High Current I/Os, -40 to +85癈, 48-Pin LQFP, TraySTM32F051K4U6 ARM Cortex-M0 32-bit RISC core (48 MHz max), 16kB Flash, 4 kB Internal RAM, 27 High Current I/Os, -40 to +85癈, 32-Pin UFQFPN, TraySTM32F051K6U6 ARM Cortex-M0 32-bit RISC core (48 MHz max), 32kB Flash, 4 kB Internal RAM, 27 High Current I/Os, -40 to +85癈, 32-Pin UFQFPN, TraySTM32F051K8U6 ARM Cortex-M0 32-bit RISC core (48 MHz max), 64kB Flash, 8 kB Internal RAM, 27 High Current I/Os, -40 to +85癈, 32-Pin UFQFPN, TraySTM32F051R4T6 ARM Cortex-M0 32-bit RISC core (48 MHz max), 16kB Flash, 4 kB Internal RAM, 55 High Current I/Os, -40 to +85癈, 64-Pin LQFP, TraySTM32F051R4T6TR ARM Cortex-M0 32-bit RISC core (48 MHz max), 16kB Flash, 4 kB Internal RAM, 55 High Current I/Os, -40 to +85癈, 64-Pin LQFP, Tape and ReelSTM32F051R6T6 ARM Cortex-M0 32-bit RISC core (48 MHz max), 32kB Flash, 4 kB Internal RAM, 55 High Current I/Os, -40 to +85癈, 64-Pin LQFP, TraySTM32F051R8T6 ARM Cortex-M0 32-bit RISC core (48 MHz max), 64kB Flash, 8 kB Internal RAM, 55 High Current I/Os, -40 to +85癈, 64-Pin LQFP, TraySTM32F051R8T7 ARM Cortex-M0 32-bit RISC core (48 MHz max), 64kB Flash, 8 kB Internal RAM, 55 High Current I/Os, -40 to +105癈, 64-Pin LQFP, TraySTM32F051R8TR ARM Cortex-M0 32-bit RISC core (48 MHz max), 64kB Flash, 8 kB Internal RAM, 55 High Current I/Os, -40 to +105癈, 64-Pin LQFP, Tape and Reel
上传时间： 2022-04-30
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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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The JW® 7805 is a low noise low-dropout (LDO) voltage regulator with enable function that operates from 1.8V to 5.5V. It provides up to 300mA of output current and offers low-power operation in miniaturized packaging. JW7805 supports fixed output voltage 0.9V, 1.0V, 1.05V, 1.1V,1.2V, 1.3V, 1.35V, 1.5V, 1.8V, 1.85V, 2.1V, 2.2V, 2.3V, 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 2.9V, 3.0V,3.1V, 3.3V, 3.6V, 4.2V, 4.4V and 5.0V. The features of low quiescent current as low as 6uA and almost zero disable current are ideal for powering the battery equipment. JW7805’s low output noise and high PSRR are also friendly to RF systems.
标签： JW7805
上传时间： 2022-05-06
上传用户：slq1234567890
