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Computer Interfaces
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Computer Interface:
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Last Updated on:
Thursday, November 30, 2017 01:57 PM
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Links to electronic circuits, electronic schematics, designs for engineers, hobbyists,
students & inventors:
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Circuit for Soft-Start Module - Simple circuit that reduces
surge current on start of an induction motor. (circuit added
09/09) |
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Circuit forms novel floating current-source - 1-May-03 Issue of
EDN Figure 1 shows a polarization circuit applicable to ISFET
(ion-sensitive field-effect-transistor] sensors. ISFETs are solid-state
chemical sensors that measure.... [Design Idea by S Casans, AE Navarro,
and D Ramirez, University of Valencia, Burjassot, Spain] |
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Circuit forms satellite-dish command decoder - 4-Mar-04 Issue of
EDN By decoding the commands sent by a direct-broadcast satellite
receiver that uses the DISEQC (digital-satellite-equipment-control]
protocol, you can troubleshoot the commands or simply listen in. Eutelsat
Corp (www.eutelsat.com] offers the DISEQC protocol. The technique uses
only the coaxial cable between the receiver and the dish to send commands
for actions such as changing the low-noise-block.... [Design Idea by Mark
Giebler, Oakdale, MN] |
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Circuit Protects Computer's Input - 05/26/94 Issue of EDN-Design
Ideas The circuit in Fig 1 performs input protection, level
translation, isolation, and debouncing..... [Design Idea by Ang Tzu Seng,
Halliburton Drilling Systems, Singapore] |
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[ad-DAJ-FS-split.htm]
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Circuit provides 4 to 20 mA loop for microcontrollers -
27-May-04 Issue of EDN The 4- to 20-mA current loop is ubiquitous in the
world of controls in manufacturing plants. Discrete logic, microprocessors, and
microcontrollers easily cover the digital portions of control schemes, such as
limit switches, pushbuttons, and signal lights. Interfacing a 4- to 20-mA output
to a rudimentary microcontroller can be problematic.... [Design Idea by Robert
Most, Dow Corning Corp, Auburn, MI] |
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Circuit Translates TTY Current Loop to RS232C - 08/03/98 EDN-Design
Ideas Provides signal translation between a passive current-loop (TTY]interface
and a duplex RS-232C ports.…Multiple circuits in this file…. [Design Idea by
Jerzy Chrzaszcz, Warsaw University, Poland] |
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Cirrus Seismic Evaluation GUI Installation Guide - (app note added
6/07) |
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Clc030 Or Clc031 Control Port Bussed Operation - National
Semiconductor Application Note (app note added 2/06) |
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Clock Controller V1.1 - The Clock V1.1 provides the same function as
the saver does but with additional 4-digit LED display and 4-key input for
setting the clock and turn on/off AC load. The circuit uses single 2051 chip,
and relay or opto-triac output for driving AC load. (circuit added
09/09) |
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Clock Performance In Raid Storage Applications: Pi6c2502 - Pericom
Semiconductor Application Note # 026 (app note added 2/05) |
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Clock/Calendar/Alarm with EEPROM-Based Interpreter & DS Interface -
(circuit schematic added 6/07) |
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CMOS A/D Converter Interfaces Easily with Many Microprocessors -
National Semiconductor Application Note 04-Nov-1995 (app note added 6/06)
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CMOS inverters convert RF to Digital signal - 01/05/06 EDN-Design
Ideas Applications ranging from frequency counting and synthesis to sensor
signal conditioning require conversion of RF signals to digital-logic levels. In
such situations, designers typically use a high-speed voltage comparator to
perform the RF-to-digital conversion. Due....[Design Idea added 05/07] EDN is
migrating links. This link is not verified. Search the "title" + "EDN" for
new link. |
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Combine two 8-bit outputs to make one 16-bit DAC - 30-Sep-04 Issue of
EDN Inexpensive, 16-bit, monolithic DACs can serve almost all
applications. However, some applications require unconventional approaches.
This Design Idea design concerns circuitry I recently designed for a
tunable-diode laser spectrometer for a Mars-exploration application. The control
circuitry included two 16-bit DACs that interface to the radiation-hardened,
8051-variant 69RH051A microcontroller.... [Design Idea by Steve Woodward, Chapel
Hill, NC] |
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Commodore 64 24-Bit Parallel Port Interface with 8255 - High Quality
simple unit. No need for a Preamplifier… [Peter Jakab, Electrical Engineer,
Engineer of Informatics] |
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Commonly Used RS-232 Serial Port Cables - (design circuit added 8/02)
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Communicating with EEPROM in MTA8XXXX - Microchip Application Note
Published 26-Aug-97 (app note added 06/06/06) |
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Communicating with Iic Bus Using Pic16c5x - The Microchip Technology
Inc.?s 24CXX and 85CXX Serial EEPROMs feature a two wire serial interface bus.
The bus protocol is I 2 C compatible. Interface to a serial port with I 2 C bus
protocol in a microcontroller is trivial. This application note is
intended for design engineers . (Microchip AN515 added 9/2008)
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Composite VGA encoder/decoder eases display upgrade - 09/28/06
EDN-Design Ideas Upgrade an RGB video system without adding
cables....[Design Idea added 06/07] EDN is migrating links. This link is not
verified. Search the "title" EDN for new link. |
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Computer Interface:
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