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技术资料 基于单片机的数字钟设计

随着系统设计要求和复杂程度的不断提高,传统时钟系统已经很难满足应用需求。本文介绍一款基于单片机的数字钟设计,该设计给出了以AT89C52单片机为核心,采用外接LED显示屏和集成按键的形式,具有高精度、可拓展的特点,具有广泛的应用性。with the improvement of system design requirements and complexity,the traditional c ...
https://www.eeworm.com/dl/895166.html
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技术资料 基于单片机的智能稳压型开关电源模块并联供电硬件系统的设计

利用C8051F型单片机设计了稳压型电源的硬件系统,该系统以EXB841为IGBT驱动电路的核心器件,以Buck型电路为主电路,采用电压的负反馈法、外部控制均流的方法对输出的电压和电流控制,使该开关电源能够智能地调节电压、电流。This paper designs a hardware system for a regulated power supply using a C8051F microcontroller ...
https://www.eeworm.com/dl/895565.html
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技术资料 外部存储器接口 (EMIF)

外部存储器接口 (EMIF) EMIF接口:可实现DSP与不同类型存储器(SRAM、Flash RAM、DDR-RAM等)的连接。一般EMIF与FPGA相连,从而使FP储器(SRAM、Flash RAM、DDR-RAM等)的连接。外部存储器接口(EMIF),External Memory Interface,是TMS DSP器件上的一种接口,具体可以分为EMIFA和EMIFB。一般来说,EMIF可实现DSP与不 ...
https://www.eeworm.com/dl/846664.html
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单片机编程 基于ATmega48的3相无刷电机的控制方法

介绍了采用ATmega48单片机实现三相无刷直流电机控制器的方法。利用Atmega48获得带死区的脉宽调制(PWM)、霍尔传感器的换相处理、正弦驱动信号的产生和电机转速的控制等功能。采用该方法的优点是所需的外围器件少,成本低。 Abstract:  The method of 3-phase brushless DC motor control based on ATmega48 is pre ...
https://www.eeworm.com/dl/502/29241.html
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单片机编程 Adding 32 KB of Serial SRAM to

Although Stellaris microcontrollers have generous internal SRAM capabilities, certain applicationsmay have data storage requirements that exceed the 8 KB limit of the Stellaris LM3S8xx seriesdevices. Since microcontrollers do not have an external parallel data-bus, serial memory optionsmust be consi ...
https://www.eeworm.com/dl/502/31063.html
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技术资料 XR2981

2.7V to 5.5V input voltage Range Efficiency up to 96%  24V Boost converter with 12A switch current Limit 600KHz fixed Switching Frequency Integrated soft-start Thermal Shutdown Under voltage Lockout Support external LDO auxiliary power supply 8-Pin SOP-PP PackageAPPLICATIONSPorta ...
https://www.eeworm.com/dl/745238.html
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技术资料 PW5410B_2.0.pdf规格书下载

The PW5410B is a low noise, constant frequency (1.2MHz) switched capacitor voltage doubler. Itproduces a regulated output voltage from 1.8V to 5V input with up to 100mA of output current. Lowexternal parts count (one flying capacitor and two small bypass capacitors at VIN and VOUT) makethe PW5410B i ...
https://www.eeworm.com/dl/829488.html
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技术资料 PW5410A_2.0.pdf规格书下载

The PW5410A is a low noise, constant frequency (1.2MHz) switched capacitor voltage doubler. Itproduces a regulated output voltage from 2.7V to 5V input with up to 250mA of output current. Lowexternal parts count (one flying capacitor and two small bypass capacitors at VIN and VOUT) makethe PW5410A i ...
https://www.eeworm.com/dl/829489.html
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技术资料 PW2312_2.0.pdf规格书下载

The PW2312 is a high frequency, synchronous, rectified, step-down, switch-mode converter withinternal power MOSFETs. It offers a very compact solution to achieve a 1.5A peak output currentover a wide input supply range, with excellent load and line regulation.The PW2312 requires a minimal number of ...
https://www.eeworm.com/dl/829515.html
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单片机编程 基于单片机的颜色自适应识别电路

  为解决电致变色器件的颜色变化受外界环境颜色控制的问题,设计了一种基于单片机的便携式颜色自适应识别电路。与传统颜色识别电路相比较,该电路利用数字式的颜色传感器来获取外界环境颜色,产生的数字颜色信号易于单片机进行处理。在电路中,下位机部分主要负责获取电致变色器件变色参数及控制电致变色器件的颜色变化 ...
https://www.eeworm.com/dl/502/29092.html
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