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模拟电子 精密DAC和看门狗提高模拟输出安全
Abstract: Using a DAC and a microprocessor supervisor, the system safety can be improved in industrial controllers, programmablelogiccontrollers (PLC), and data-acquisition systems. The analog output is set to zero-scale (or pin-programmable midscale) when amicroprocessor failure, optocoupler fail ...
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 ...
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, ...
电子书籍 This hands-on, one-stop guide delivers the focused, streamlined direction you need to get your Web s
This hands-on, one-stop guide delivers the focused, streamlined direction you need to get your Web solutions up and running quickly. Zero in on key ASP.NET configuration details and techniques using quick-reference tables, lists, coding and more.
Java书籍 A Java virtual machine instruction consists of an opcode specifying the operation to be performed, f
A Java virtual machine instruction consists of an opcode specifying the operation to be performed, followed by zero or more operands embodying values to be operated upon. This chapter gives details about the format of each Java virtual machine instruction and the operation it performs.
Java书籍 A Java virtual machine instruction consists of an opcode specifying the operation to be performed, f
A Java virtual machine instruction consists of an opcode specifying the operation to be performed, followed by zero or more operands embodying values to be operated upon. This chapter gives details about the format of each Java virtual machine instruction and the operation it performs.
Java书籍 A Java virtual machine instruction consists of an opcode specifying the operation to be performed, f
A Java virtual machine instruction consists of an opcode specifying the operation to be performed, followed by zero or more operands embodying values to be operated upon. This chapter gives details about the format of each Java virtual machine instruction and the operation it performs.
Java书籍 A Java virtual machine instruction consists of an opcode specifying the operation to be performed, f
A Java virtual machine instruction consists of an opcode specifying the operation to be performed, followed by zero or more operands embodying values to be operated upon. This chapter gives details about the format of each Java virtual machine instruction and the operation it performs.