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Electronic Schematics - E

Encoder Circuits

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)

PIC Based Packet Radio Encoder - (circuit / schematic design)

Position Encoder Does Away withADC - 05/08/97 EDN-Design Ideas: (design idea)

Professional Stereo Encoder - Uses high quality NJM2035 stereo coder IC. ….(electronic schematic)

RDS Encoder - schematic only (schematic / circuit)

RDS Encoder-Digital part - (circuit)

Remote Control Encoder/Decoder with PIC16C620 & PIC12C508 - (circuit / schematic design)

Resolver to Digital Conversion; Simple Alternative to Optical Shaft Encoders - AN-263 Analog Devices Application Notes  (app note)

RF Transmitter uses AMI encoding - 11/24/99 EDN-Design Ideas:.....(design idea) Although alternate-mark-inversion (AMI) encoding is well-suited for direct-conversion FM transmission, designers often overlook the technique.

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)

Stereo Encoder/ Multiplexer - based on NJM2035, very simple circuit and well documented (circuit)

Veronica Stereo Encoder - As you probably know, to enable stereophonic broadcasting, audio channels LEFT and RIGHT have to be specifically 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)

AN-263: Resolver to Digital Conversion; Simple Alternative to Optical Shaft Encoders - AN-263 Analog Devices Application Notes  (app note)

AN824: KEELOQ® Encoders Oscillator Calibration - Microchip Application Note Published 21-Jan-02  (app note)

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 independently controlled be remote switches or sensors.

BA1404 Stereo Encoder - With 15 KHz low pass filter.  (circuit)

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)

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)

Composite VGA encoder/decoder eases display upgrade - 09/28/06 EDN-Design Ideas: Upgrade an RGB video system without adding cables.....(design idea)

Digital Position Encoder Does Away with ADC - 05/08/97 EDN-Design Ideas: (design idea)

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)

Hierarchical Priority Encoder - Circuit design

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

KEELOQ® Manchester Encoding Receive Routines - Microchip Application Note Published 11-May-01  (app note)

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)

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)


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