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模拟电子 DAC技术用语 (D/A Converters Defini
Differential Nonlinearity: Ideally, any two adjacent digitalcodes correspond to output analog voltages that are exactlyone LSB apart. Differential non-linearity is a measure of theworst case deviation from the ideal 1 LSB step. For example,a DAC with a 1.5 LSB output change for a 1 LSB digital codec ...
模拟电子 ADC转换器技术用语 (A/D Converter Defi
ANALOG INPUT BANDWIDTH is a measure of the frequencyat which the reconstructed output fundamental drops3 dB below its low frequency value for a full scale input. Thetest is performed with fIN equal to 100 kHz plus integer multiplesof fCLK. The input frequency at which the output is −3dB relati ...
电源技术 三相固能继电器
Specification: 输入信号:DC9-32V&AC100-240V 适用负载:电热负载,电感负载 控制方式:零点触发(Zero cross turn-on) 输入额定电压:AC 110-440±10% 输入额定电流:200-400A 使用频率:50/60Hz 使用环境:-10℃-50℃ 90%RH 冷却方式:风冷式 ...
电源技术 降压升压型控制器简化手持式产品的DC/DC转换器设计
 
A number of conventional solutions have been available forthe design of a DC/DC converter where the output voltageis within the input voltage range—a common scenarioin Li-Ion battery-powered applications—but none werevery attractive until now. Conventional topologies, suchas S ...
电源技术 LT1010在电源缓冲区中的应用
 
A frequent requirement in systems involves drivinganalog signals into non-linear or reactive loads. Cables,transformers, actuators, motors and sample-hold circuitsare examples where the ability to drive diffi cult loads isrequired. Although several power buffer amplifi ers areavailable, n ...
单片机编程 AT89C2051驱动步进电机的电路和源码
AT89C2051驱动步进电机的电路和源码:AT89C2051驱动步进电机的电路和源码 程序:stepper.c stepper.hex/* * STEPPER.C * sweeping stepper's rotor cw and cww 400 steps * Copyright (c) 1999 by W.Sirichote */#i nclude c:\mc5151io.h /* include i/o header file */ #i nclude c:\mc5151reg.hregister unsigned char j, ...
传感与控制 回路电源式显示电表(无电源式)
特点 精确度0.05%满刻度 ±1位数 显示范围-19999-99999可任意规划 可直接量測直流4至20mA電流,無需另接輔助電源 尺寸小(24x48x50mm),穩定性高 分离式端子,配线容易 CE 认证 主要規格 辅助电源: None 精确度: 0.05% F.S. ±1 digit(DC) 输入抗阻: approx. 250 ohm with 20mA input 输入电压降: max. DC5V with 2 ...
传感与控制 5位数LCD型显示表(无电源式)
特点 精确度0.1%满刻度 &plusmn;1位数 显示范围-19999-99999可任意规划 可直接量测直流电流/直流电压,无需另接辅助电源 尺寸小(24x48x50mm),稳定性高 分离式端子,配线容易 CE 认证 2.主要規格 辅助电源: None 精确度: 0.1% F.S. &plusmn;1 digit(1-100%F.S.) 输入抗阻 : >100Mohm(<2V range) >2Mohm(<2Vrange) < 0.25VA(cur ...
可编程逻辑 Protel DXP 2004 SP2下载地址
软件介绍与下载事项:
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可编程逻辑 CAM350软件的学习笔记
CAM350软件的学习笔记目录1. CAM3501. 一. Gerber知识2. 二.CAM3503. 三.CAM350操作4. 附录Gerber知识l Gerber 文件的格式包括:&iexcl; RS-274-X (常用)&iexcl; RS-274-D (常用)&iexcl; RS-274&iexcl; Fire 9000&iexcl; Mda 9000&iexcl; Barco DPFl 标准的gerber file 格式可分为RS-274 与RS-274X 两种,其不同在于:& ...