Description: 数字功放电路,愿大家说出不足之处,多指教,能不能写这样软件控制的,请联系liangsongzhi886@163.com-Digital power amplifier circuit, would like to tell everyone inadequacies, multi-index, could write such software control, please contact liangsongzhi886@163.com Platform: |
Size: 72704 |
Author:梁松芝 |
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Description: 本系统以Atmel的AT89c52单片机为主控制器，通过制作硬件电路和软件的设计编写，然后进行软硬件的调试运行，最终达到设计电路乐曲弹奏播放功能和存储重放音乐功能。设计中运用中断系统和定时/计数原理控制电子音乐器发生，并对所需的音阶和贝斯用相应的程序语言编写来实现，用8段数码显示管显示所弹奏的乐谱内容。将两个89c52单片机的串行口连接起来，实现5米以外的通信。输出通道通过一个功率放大器驱动扬声器发声。-This system to Atmel' s AT89C52 single-chip microcomputer-based controller, through the production of hardware circuitry and software to prepare the design and then proceed to debug hardware and software to run, eventually to meet the design circuit playing music playback and storage of music playback function. The design of systems and the use of interrupt timing/counting principle to control electronic music device happened, and the necessary scale and bass with the preparation of the corresponding programming language to achieve with digital display 8 display the content by playing the music. Two 89c52 single-chip serial port of linking implementation of communication other than 5 meters. Power amplifier output channels through a voice-driven speaker. Platform: |
Size: 159744 |
Author:王静静 |
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Description: This book is an undergraduate level textbook presenting a thorough discussion of state− of− the−
art digital devices and circuits. It supplements our Electronic Devices and Amplifier Circuits, ISBN
0− 9709511− 7− 5. It is self− contained begins with the basics and ends with the latest
developments of the digital technology. The intent is to prepare the reader for advanced digital
circuit design and programming the powerful Complex Programmable Logic Devices (CPLDs),
and Field Programmable Gate Arrays (FPGAs).-This book is an undergraduate level textbook presenting a thorough discussion of state− of− the−
art digital devices and circuits. It supplements our Electronic Devices and Amplifier Circuits, ISBN
0− 9709511− 7− 5. It is self− contained begins with the basics and ends with the latest
developments of the digital technology. The intent is to prepare the reader for advanced digital
circuit design and programming the powerful Complex Programmable Logic Devices (CPLDs),
and Field Programmable Gate Arrays (FPGAs). Platform: |
Size: 10825728 |
Author:anand |
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Description: （Guitar电容屏驱动）多点电容式触摸屏控制芯片Guitar，采用投
射式电容检测原理，由15个驱动通道与10个感应
通道组成触摸检测网络，通过内置模拟放大电路、
数字运算模块，及高性能MPU得到实时准确的触
摸信息，并通过I2C传输给主控芯片。实现“所
点即所得”的非凡用户体验。
Guitar可同时识别5个触摸点位的实时准确
位置，移动轨迹及触摸力度。并可根据主控需
要，读取相应点数的触摸信息。-(Guitar capacitive screen driver) multi-point capacitive touch screen controller chip Guitar, using cast
Shot capacitive detection principle by 15 and 10 drive channel induction
Channel composed of touch detection network, through built-in analog amplifier circuit,
Digital computing modules, and high-performance MPU get real-time accurate touch
Touch information, and transmitted to the master chip via I2C. Achieve the
Click-to-income extraordinary user experience.
Guitar can identify five touch points in real-time accurate
Position, the movement trajectory and strength of touch. And in accordance with the master need
To read the information of the corresponding touch points. Platform: |
Size: 1328128 |
Author:邵仁 |
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Description: 采用电桥电路、仪表放大器、AD转化器、单片机、控制通断继电器和烧水杯，实现了温度控制系统的控制，达到的设计要求。
设计制作要求如下：
1、要求能够测量的温度范围是环境温度到100oC。
2、以数字温度表为准，要求测量的温度偏差最大为±1oC。
3、能够对水杯中水温进行控制，控制的温度偏差最大为±2oC，即温度波
动不得超过2oC，测量的精度要高于控制的精度。
4、控制对象为400W的电热杯。
5、执行器件为继电器，通过继电器的通断来进行温度的控制。
6、测温元件为铂热电阻Pt100传感器。
7、设计电路以及使用单片机学习板编程实现这些要求，并能通过键盘置入预期温度，通过LCD显示出当前温度。(Using the bridge circuit, instrumentation amplifier, AD converter, microcontroller, control relays and boil-off cup, realizes control temperature control system to achieve the design requirements. Design requirements are as follows: 1, requires the ability to measure the temperature range is the ambient temperature to 100oC. 2, a digital thermometer, whichever is required maximum deviation of the measured temperature 1oC. 3, it is possible to control the temperature of the glass in the control of temperature deviation maximum 2oC, namely temperature fluctuations may not exceed 2oC, the accuracy of measurement is higher than the control accuracy. 4, the control target is 400W electric mug. 5, the implementation of the device for the relay, to control the temperature of the relay-off. 6, temperature measurement element is a platinum RTD Pt100 sensors. 7, the design of the circuit board and the use of single-chip learning program to achieve these requirements, and through the keyboard int) Platform: |
Size: 13312 |
Author:杨婷 |
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Description: General Description
The GN25L95 is a combined burst mode laser driver and limiting post amplifier designed for fiber optic transceiver modules.
The GN25L95 features on-chip digital diagnostic monitoring and digital set-up. This enables a complete solution for SFP/SFF optical transceiver modules.
A fully compliant SFF-8472 digital diagnostic monitoring solution can be realised by connecting an external 8k EEPROM.
The GN25L95 features automatic mean power and automatic extinction ratio control functions for robust and reliable control of laser operating conditions over temperature.
Auto-ranging A/D converters with digitized monitoring, an internal temperature sensor and an on-chip DAC for controlling an external APD bias circuit are also included.
Consuming 90 mA from a 3.3 V supply the GN25L95 is packaged in a 4x4 mm QFN 28 pin RoHS package rated from -40 to +95 °C. Platform: |
Size: 1564790 |
Author:Clayray |
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