Description: 单片机的数模转换程序 验证过 超好使 对于从事单片机数模转换是一个很好的例子 对于模数转换芯片资料可以到网上下载-MCU ADC-tested procedures for engaging in so few MCU mode conversion is a good example right in analog-digital converter chip information can be downloaded to the Internet Platform: |
Size: 18867 |
Author:岳天笑 |
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Description: 本系统以直流电流源为核心，AT89S52单片机为主控制器，通过键盘来设置直流电源的输出电流，设置步进等级可达1mA，并可由数码管显示实际输出电流值和电流设定值。本系统由单片机程控输出数字信号，经过D/A转换器（AD7543）输出模拟量，再经过运算放大器隔离放大，控制输出功率管的基极，随着功率管基极电压的变化而输出不同的电流。单片机系统还兼顾对恒流源进行实时监控，输出电流经过电流/电压转变后，通过A/D转换芯片，实时把模拟量转化为数据量，再经单片机分析处理， 通过数据形式的反馈环节，使电流更加稳定，这样构成稳定的压控电流源。实际测试结果表明，本系统输出电流稳定，不随负载和环境温度变化，并具有很高的精度，输出电流误差范围±5mA，输出电流可在20mA~2000mA范围内任意设定，因而可实际应用于需要高稳定度小功率恒流源的领域。-the system to DC current source to the core, MCU AT89S52 main controller, through the keyboard to set up DC power supply output current, set up to 1mA Stepping grades, digital control can be shown by the actual output current value and current setting. The system consists of programmable microcontroller digital signal output, after the D / A converters (AD7543) analog output. After Operational Amplifiers isolation, amplification and control of the output power base. With the power of the base voltage changes in the output current. SCM system also takes on the constant current source for real-time monitoring, after current output current / voltage changes, the A / D converter chip, real-time conversion from analog to the volume of data and then analyzed by the MCU, through data link in the Platform: |
Size: 197253 |
Author:DAI |
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Description: 单片机的数模转换程序 验证过 超好使 对于从事单片机数模转换是一个很好的例子 对于模数转换芯片资料可以到网上下载-MCU ADC-tested procedures for engaging in so few MCU mode conversion is a good example right in analog-digital converter chip information can be downloaded to the Internet Platform: |
Size: 18432 |
Author:岳天笑 |
Hits:
Description: 本系统以直流电流源为核心，AT89S52单片机为主控制器，通过键盘来设置直流电源的输出电流，设置步进等级可达1mA，并可由数码管显示实际输出电流值和电流设定值。本系统由单片机程控输出数字信号，经过D/A转换器（AD7543）输出模拟量，再经过运算放大器隔离放大，控制输出功率管的基极，随着功率管基极电压的变化而输出不同的电流。单片机系统还兼顾对恒流源进行实时监控，输出电流经过电流/电压转变后，通过A/D转换芯片，实时把模拟量转化为数据量，再经单片机分析处理， 通过数据形式的反馈环节，使电流更加稳定，这样构成稳定的压控电流源。实际测试结果表明，本系统输出电流稳定，不随负载和环境温度变化，并具有很高的精度，输出电流误差范围±5mA，输出电流可在20mA~2000mA范围内任意设定，因而可实际应用于需要高稳定度小功率恒流源的领域。-the system to DC current source to the core, MCU AT89S52 main controller, through the keyboard to set up DC power supply output current, set up to 1mA Stepping grades, digital control can be shown by the actual output current value and current setting. The system consists of programmable microcontroller digital signal output, after the D/A converters (AD7543) analog output. After Operational Amplifiers isolation, amplification and control of the output power base. With the power of the base voltage changes in the output current. SCM system also takes on the constant current source for real-time monitoring, after current output current/voltage changes, the A/D converter chip, real-time conversion from analog to the volume of data and then analyzed by the MCU, through data link in the Platform: |
Size: 196608 |
Author: |
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Description: 数字直流稳压器：
用单片机来设置输出电压，把单片机设置的数值通过D\A数模转换变换为模拟电压，然后通过输出的模拟电压，控制稳压模块的输出，稳压模块由可调稳压块LM317和双运算放大器LM358构成，通过LM358比较输出和设置电压并控制LM317的输出，以达到比较精确的输出，用三位数码管动态显示输出电压值，精确到0.1V。-Digital DC Regulators: MCU to set the output voltage, the single-chip set of values through the digital-analog converter DA transform analog voltage, and then through the analog output voltage, the control module s output voltage regulator, voltage regulator modules from LM317 adjustable regulator block and dual op-amp LM358 constitute, by comparison LM358 voltage output and set up and control the output of LM317, so as to achieve more precise output, with the three digital tube dynamic display the output voltage value, accurate to 0.1V. Platform: |
Size: 5120 |
Author:陈巍巍 |
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Description: CS8955控制TV软件。用MCU做模拟电视的控制。-CS8955+TV+TNJ7355(tuner).The CS8955 micro-controller is an 8051 CPU core
embedded device targeted for LCD Monitor, LCD TV,
Home Appliance, or Consumer Products application.
The CS8955 is pin-out compatible with MCS-51
family .MCU. It includes an 8051 CPU core, a 64K-byte
internal program Flash-ROM, a 512-byte SRAM, 6
channels of PWM DAC, and 4 channels of 6-bit ADC
(Analog to Digital Converter). It also includes a Boot-
Code-Free ISP (In System Programming), which
allows users to update the programming codes easily.
In addition, there are two IIC Slave B ports supporting
VESA DDC 2B/2Bi/2B+/CI standards for both D-sub
and DVI interfaces in LCD Monitor/TV application. An
external 64K bytes data flash memory can be
accessed by properly setting of Port 0, Port 2 and
Port 3.6/3.7.
Platform: |
Size: 578560 |
Author:martinliao |
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Description: 由A/D转换器TLC549串口芯片和单片机AT89S52构成，A/D转换器在单片机的控制下完成对模拟信号的采集和转换功能，最后由74LS164驱动数码管显示出来的电压值-By the A/D converter chip and microcontroller AT89S52 TLC549 serial form, A/D converter under the control of the MCU to complete the analog signal acquisition and conversion functions, and finally by the 74LS164 drive digital control voltage values shown Platform: |
Size: 1024 |
Author:YOU YU |
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Description: PT8528为VGA转换IC，可以输出数字和模拟VGA信号，最高输出分辩率1600*1200，同时带OSD和内部MCU，此代码可实现PT8528的全部功能。-PT8528 to VGA converter IC, can output digital and analog VGA signals, the maximum output of Resolution 1600* 1200, while with OSD and internal MCU, the code can achieve the full functionality of PT8528. Platform: |
Size: 35840 |
Author:tanganrong |
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Description: 基于c51单片机控制tlc1540的A/D转换实现模拟量向数字量转换-C51-based MCU tlc1540 the A/D converter to achieve analog to digital conversion
Platform: |
Size: 1024 |
Author:曹 |
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Description: 该系统基本工作原理为：由温度传感器来采集箱内温度，然后通过单片机内部的A/D转换器将模拟信号转换为数字信号，通过控制规则，单片机作出相应的处理，最终将结果显示出来，使系统的温度控制在要求的范围内。-The system basic working principle is: the temperature sensor to collect inside temperature, and then through the MCU internal A/D converter converts the analog signal into digital signal through the control rules, corresponding MCU processing, the final results to be displayed, The temperature control of the system the required range. Platform: |
Size: 215040 |
Author:岳经凯 |
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Description: Ａ／Ｄ转换ＴＬＣ５４９与５１单片机，模数转换的程序-A/D converter TLC549 and 51 MCU, analog to digital conversion process Platform: |
Size: 4096 |
Author:李思青 |
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Description: 用数模转换器DAC0832和单片机实现了，产生锯齿波得功能。本程序已经通过调试，真是可行。-MCU with digital to analog converter DAC0832 and the produce was sawtooth function. This program has been through debugging, really feasible. Platform: |
Size: 8192 |
Author:xu |
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Description: Atmel的AVR单片机提供了10位精度的模拟到数字转换器。在大多数情况10位精度已经足够了，但是某些情况下需要更高的精度。特殊的信号处理技术可以用来提高测量的精度。使用一种称为“过采样和抽取”的方法可以得到较高的精度，不需要使用外部的ADC。这个应用笔记解释了这个方法，以及它需要满足的条件。-Atmel AVR MCU supply 10 bit accuracy analog to digital converter.in gernerl,10 bit accuracy is enough, but wo need higher accuracy for some application. Platform: |
Size: 118784 |
Author:刘璐 |
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Description: 程序是基于STC89C52单片机的模拟/数字(A/D，TLC549)实验，目的在于：1.了解 8 位串行输出 A/D 转换器 TLC549 的工作原理。
2. 掌握 TLC549 的硬件线路连接方式。
3. 掌握 A/D 转换器 TLC549 的编程方法
-The program is based on STC89C52 microcontroller analog/digital (A/D, the TLC549) experiment aims to: 1. Understand the principle of the eight serial output A/D converter the TLC549. 2 master the TLC549 hardware line connection. Master A/D converter the TLC549 programming Platform: |
Size: 8192 |
Author:ivy |
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Description: 模数转换ADC0832，基于51单片机的c语言程序-Analog to digital converter ADC0832, based on 51 MCU c language program Platform: |
Size: 8192 |
Author:无语 |
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Description: 51单片机运用PCF8591实现数模莫属转换（i2c协议）
1利用PCF8591 串行A/D 转换器转换电位器输入模拟电压，并在LED数码管上显示电压值（精确到2 位小数），实现数字电压表功能。
2在基本部分基础上，利用 PCF8591 的D/A 通道实现一个固定频率的方波（频率范围10~50Hz），并在虚拟示波器上输出。-51 MCU using PCF8591 to realize the digital to analog conversion (I2C) is
1 using PCF8591 serial A/D converter to convert the input analog voltage potentiometer, and in the digital tube LED display voltage values (accurate to 2 decimal places), the realization of digital voltage meter function.
2 in the basic part of basis, the realization of a fixed frequency Fang Bo using D/A channel PCF8591 (10~50Hz frequency range), and the output in a virtual oscilloscope. Platform: |
Size: 144384 |
Author:58 |
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Description: 按键控制AD转换实验，模拟量向数字量转换，DS18B
20采集外界温度经ad转换，送入单片机进行控制-AD conversion experiments button control, analog to digital converter, DS18B
20 collected by the ad outside temperature conversion into the MCU control Platform: |
Size: 1014784 |
Author:xu |
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