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电源技术 DN436微型全桥压电马达驱动器
 
Piezoelectric motors are used in digital cameras for autofocus,zooming and optical image stabilization. Theyare relatively small, lightweight and effi cient, but theyalso require a complicated driving scheme. Traditionally,this challenge has been met with the use ofseparatecircuits, inclu ...
电源技术 DN460双输出降压稳压器优化效率
 
The LTC3546 is a dual output current mode buck regulatorwith fl exible output current partitioning. Beyondthe advantages normally associated with dual outputregulators (reduced size, cost, EMI and part count, withimproved effi ciency), the LTC3546’s outputs can bepartitioned for eit ...
单片机编程 基于MAX7219的LED数码显示驱动电路设计
现有基于MAX7219芯片的数码管驱动电路只适用于小尺寸LED,为扩展其使用范围,在介绍动态显示芯片MAX7219功能的基础上,提出了一个基于该芯片的8位高亮度8英寸数码管驱动电路。电路保留了MAX7219芯片的功能强大、编程简单等优点,通过74LS273锁存器和ULN2803达林顿驱动器,实现了对任意大尺寸数码管提供较高电压和电流 ...
单片机编程 基于ATmega16的标记机控制系统
介绍了当前普通标记机控制系统现状及其存在缺点,给出气动标记机及相频修正PWM模式的工作原理。采用ATmega16单片机和USB转换RS232接口器件CH341T实现驱动控制系统与PC的实时通讯,标记控制系统可升级到USB接口。采用基于ATmega16的相频修正PWM替换555振荡电路产生的PWM,可直接通过软件调整PWM信号。使用达林顿三极管TIP122 ...
单片机编程 多路温度采集及监控系统的设计
介绍一种基于单片机的多路温度采集及监控系统,能够测量6路温度信号,具有计算机联网功能,各测量点可以单独监控和设置,可根据用户的需求自动控制。测量温度范围为-10 ℃~200 ℃,控制方式采用模拟量调压模式。该系统具有控制精度高、冲击小等特点。
Abstract:
 A temperature collecting and surveillance-contr ...
单片机编程 MT8870D DTMF解码芯片
Features• Complete DTMF Receiver• Low power consumption• Internal gain setting amplifier• Adjustable guard time• Central office quality• Power-down mode• Inhibit mode• Backward compatible withMT8870C/MT8870C-1Applications• Receiver system for Bri ...
单片机编程 用户程序示例教程
用户程序示例教程
The Blinky project is a simple program for the LPC2138using Keil MCB2130 Microcontroller Board.
It blinks the LEDs at speed according to the Potentiometer setting and prints the current seting to the Serial Port 1.In addition it generates a sine wave with an adjustable frequency on ...
单片机编程 PAM2862 1A LED Driver with Int
The PAM2862 is a continuous mode inductivestep-down converter, designed for driving singleor multiple series connected LEDs efficientlyfrom a voltage source higher than the LEDvoltage. The device operates from an inputupply between 6V and 30V and provides anexternally adjustable output current of up ...
传感与控制 4位数一段设定6位数累积计数器
特点 最高輸入頻率 10KHz 显示范围0-9999(一段设定)0至999999累积量 计数速度 50/10000脈波/秒可选择 输入脈波具有预设刻度功能 累积量同步(批量)或非同步(批次)计数可选择 数位化指拨设定操作简易 计数暂时停止功能 1组报警功能 2:主要規格 脈波輸入型式: Jump-pin selectable current sourcing(NPN) or current sin ...
传感与控制 6位数自动定位控制计数器(72*72mm)
特点 显示值范围-199999至999999位數 最高輸入頻率 5KHz 90度相位差加減算具有提高解析度4倍功能 输入脈波具有预设刻度功能 定位基准值可任意設定 比較磁滯值可任意設定 数位化指拨设定操作简易 3组继电器输出功能 2:主要規格 脈波輸入型式: Jump-pin selectable current sourcing(NPN) or current sinking (PNP) 脉波触发 ...