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Encoder Circuits
Last Updated on:
Friday, October 16, 2009 03:41 AM
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Links to electronic circuits,
electronic schematics, designs for engineers, hobbyists, students & inventors:
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AN-263: Resolver to Digital Conversion; Simple Alternative to Optical Shaft Encoders
- AN-263 Analog Devices Application Notes (app note added 6/06) |
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AN824: KEELOQ® Encoders Oscillator Calibration - Microchip Application Note
Published 21-Jan-02 (app note added 2/06) |
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Analog Encoding - Convert switches and sensors into DMX signals. Uses are found in
Haunted houses, stage plays, med events, holiday light animations, anytime you want to
control DMX compatible equipment. Fog machines and strobe lights can be independly
controlled be remote switches or sensors. (added 02/05) |
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BA1404 Stereo Encoder - With 15 KHz low pass filter. (circuit added 8/06)
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BH1415 HI FI Stereo Encoder - Latest BH1415 Stereo Encoder design from RHOM that
includes a lot of great features in one small package. It comes with pre-emphasis,
limiter so that the music can be transmitted at the same audio level, low pass filter
that blocks any audio signals above 15KHz to prevent any RF interference and crystal
based stereo encoder for stereo transmission. ….(electronic schematic added 11/08) |
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BH1417 HI FI Stereo Encoder - BH1417 Stereo Encoder design from RHOM that
includes a lot of great features in one small package. It comes with pre-emphasis,
limiter so that the music can be transmitted at the same audio level, low pass filter
that blocks any audio signals above 15KHz to prevent any RF interference and crystal
based stereo encoder for stereo transmission. ….(design added 11/08) |
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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) |
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Digital Position Encoder Does Away with ADC - 05/08/97 EDN-Design Ideas: (design
idea added 6/06) |
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Encoder & PC Make Complete Motor Control System - 12/12/02 EDN-Design Ideas: This
Design Idea combines a simple ISA-bus-resident interface circuit; a garden-variety PC;
a high-resolution optical shaft encoder; and a PWM-controlled, 0.05-hp, brushed,
permanent-magnet dc motor to make a high-precision and high-power motion-control
system. The system sequences the precise rotation of an evacuated steel bell
jar.....(design idea added 1/05) |
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Hierarchical Priority Encoder - Circuit design (added 01/05) |
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High-quality Stereo Encoder - This stereo encoder is a halfway between analogue
and digital processing. It combines the best from both domains to provide high-quality
and easy to build device. The sampling frequency used in this stereo encoder is 97
times…(added 08/08/08) |
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KEELOQ® Manchester Encoding Receive Routines - Microchip Application Note
Published 11-May-01 (app note added 2/06) |
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NJM2035 Stereo Encoder/ Multiplexer - This stereo encoder is the perfect solution
for those looking for a high quality stereo sound transmission at a low cost. This
stereo encoder produces an excellent crystal clear stereo sound and very good channel
separation that can match with many more expensive stereo encoders that are available
on the market. It is all possible thanks to a 38KHz quartz crystal that controls the
19kHz pilot tone, so you will never have to calibrate or re-adjust the circuit.
….(design added 11/08) |
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NTE789 Stereo Decoder - The NTE789, a monolithic silicon integrated circuit, is a
stereo multiplex decoder intended for FM multiplex systems. This stereo multiplex
decoder requires only one low–inductance tuning coil (requires only one adjustment for
complete alignment), provides automatic stereo switching, energizes a stereo indicator
lamp, and operates from a wide range of voltage supplies. ….(design added 11/08) |
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Optical Encoder Controls Range Switch - 10/08/98 EDN-Design Ideas: Several
circuits included, scroll to find this one. Instead of using a
counter-controlled, pushbutton-activated range switch, you can use an optical encoder.
Inexpensive encoders are available, and they occupy minimal space on the front panel
of an instrument....(circuit added 07/02).....(design idea added 6/02) |
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PIC Based Packet Radio Encoder - (circuit / schematic design added 6/06) |
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Position Encoder Does Away withADC - 05/08/97 EDN-Design Ideas: (design idea added
6/06) |
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Professional Stereo Encoder - Uses high quality NJM2035 stereo coder IC.
….(electronic schematic added 11/08) |
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RDS Encoder - schematic only (schematic / circuit added 6/07) |
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RDS Encoder-Digital part - (circuit added 06/07/08) |
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Remote Control Encoder/Decoder with PIC16C620 & PIC12C508 - (circuit / schematic
design added 6/06) |
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Resolver to Digital Conversion; Simple Alternative to Optical Shaft Encoders -
AN-263 Analog Devices Application Notes (app note added 6/06) |
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RF Transmitter uses AMI encoding - 11/24/99 EDN-Design Ideas:.....(design idea
added 6/06) Although alternate-mark-inversion (AMI)encoding is well-suited for
direct-conversion FM transmission, designers often overlook the technique. AMI, a
three-phase, synchronous-encoding technique, uses bipolar pulses to represent logic
ones and no signal to... |
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Rotary Encoder Mates with Digital Potentiometer - 02/06/03 EDN-Design Ideas: In
developing electronic systems, designers look for products or ideas that may benefit
from the better performance, smaller size, lower cost, and improved reliability that
an IC can offer. Toward that end, the digital potentiometer emerged as an alternative
to its mechanical counterpart, the mechanical potentiometer.....(design idea added
1/05) |
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Stereo Encoder/ Multiplexer - based on NJM2035, very simple circuit and well
documented (circuit added 8/06) |
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Veronica Stereo Encoder - As you probably know, to enable stereophonic
broadcasting, audio channels LEFT and RIGHT have to be specificaly encoded in such a
way that FM receivers can reconstruct stereo. This is a low cost, but powerful, stereo
coder. Since the schematic is very 'clean' there's no full documentation available.
Just note that : * Trimmers adjust 19KHz pilot tone and output levels (see
schematics). * Cap. trimmer fine tune the 19KHz pilot tone frequency (from 76KHz
crystal). ….(electronic schematic added 11/08) |
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