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Circuits or Electronic Schematics - Page 2
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Last Updated:
03/26/2012 08:14:41 PM |
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Links to electronic circuits,
electronic schematics, designs for engineers, hobbyists, students & inventors:
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Balanced Audio Input Circuit - (design circuit added 8/02)
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Balanced Line Driver & Receiver - Use these to eliminate hum for
long signal leads (schematic / Circuit design added 9/02) |
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Balanced Line Inputs/Outputs for Silicon Graphics workstations -
AS075 Jenson Transformer Application Note (app note 5/02)
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Bandpass filter features adjustable Q and constant maximum gain -
3-Mar-05 Issue of EDN Applications such as audio equalizers require
bandpass filters with a constant maximum gain that's independent of the
filter's quality factor, Q. However, all of the well-known filter
architectures—Sallen-Key,..... [Design Idea by Herminio Martínez, Joan
Domingo, Juan Gmiz, and Antoni Grau, Technical University of Catalonia,
Barcelona, Spain] |
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Bar graph display - Schematic only, no circuit description
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Big 7-Segment LED Display Board with SPI Interface - The circuit
uses a serial-in-parallel out shift register, 74HC595 for receiving serial
data from uController board. See example of U5 in schematic, SER is
for data input, SRCLK is shift clock and RCLK is Latch clock. Each data
bit is shifted into....(added 4/05) |
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Big LED Clock - (circuit / schematic added 5/03) |
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Calculator program evaluates elliptic filters - 31-Mar-05 Issue of EDN
Find the poles and zeroes of elliptic-filter designs using Darlington’s algorithm
implemented on a calculator..... [Design Idea by Fernando Salazar-Martínez, Alan
Altamirano-Cruz, and David Báez-López, Department of Engineering Electronics,
University of the Americas, Puebla, Mexico; Edited by Brad Thompson] |
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Call Sign Annunciator - (electronic circuit added 4/05) |
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Caller ID Circuits - information and circuits for different systems used USA
and Finland (added 5/02) |
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Caller ID Decoder - (circuit / schematic added 2/03) |
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Caller ID Display Service - Caller ID decoder based on 68HC11, text in
French / (added 6/03) |
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Circuit Adapts Differential Input to Drive Coax - 05/08/97 EDN-Design
Ideas.....Uses an HFA1100 or HFA1105 to convert a balanced input signal to a
single-ended output signal, uses positive feedback to characteristic-impedance
matching while increasing the available output swing, as compared with using a simple
series termination resistor..... [Design Idea by Donald Whitney Jr, Harris
Semiconductor, Melbourne, FL] |
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Circuit controls brightness of multiple displays - 30-May-02 Issue of EDN
I recently needed to control nine seven-segment displays for a microcontroller's
serial port. The complication I faced was the need to provide a continuous brightness
adjustment for all the digits—from completely dark to fully bright. I couldn't easily
use the obvious solution of a string of 74HC595 serial-to-parallel converters driving
the segments through series resistors, because I wou..... [Design Idea by Stephan
Goldstein, Analog Devices, Wilmington, MA] |
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