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Display Electronic Circuits or Electronic Schematics
Display Circuits:  #'s - C       D - I       J - N       O - T       U - Z

Last Updated:  10/24/2017 02:54:44 PM


Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

Cable Sense Amplifier for Loop through Connections with DC Adjust -  This circuit shows a means of providing a multidrop tap amplifier using the differential input LT6552.  This circuit taps the cable    (loop-through configuration) at a high impedance and then amplifies the signal for transmission to a standard 75Ω video load    (a display monitor for example) .  The looped-through signal would continue__ Linear Technology/Analog Devices App Note, Mar 25th 2010

Calculator program finds closest standard-resistor values -  31-Mar-05 EDN-Design Ideas Find the poles and zeroes of elliptic-filter designs using Darlington’s algorithm implemented on a calculator __ Circuit Design by Fernando Salazar-Martínez, Alan Altamirano-Cruz, and David Báez-López, Department of Engineering Electronics, University of the Americas, Puebla, Mexico

Call Bell with Welcome Indication -  Here is a simple call bell circuit that displays a welcome message when somebody presses the call bell switch momentarily.  The alphanumeric display can be fitted near the call bell switch.__ Electronics Projects for You

Call Sign Annunciator -  In the USA, R/C wireless video hobbyists are required to operate their video transmitters under the FCC Part 97 regulations    (amateur radio) .  The only exceptions are the Part 15 approved systems, but these low power alternatives are rarely used.  Other countries have similar requirements.  Playing by the rules will certainly prevent conflicts with government officials, since they can levy substantial penalties to offenders.  But more importantly, following the rules is the basis of good amateur radio manners.   __ Designed by RC-CAM T. Black

Caller ID Display Service -  Caller ID decoder based on 68HC11, text in French __ Designed by Matthieu Benoit

Caller IDs -  information and circuits for different systems used USA and Finland __ Designed by Tomi Engdahl

Call Sign Annunciator -  In the USA, R/C wireless video hobbyists are required to operate their video transmitters under the FCC Part 97 regulations    (amateur radio) .  The only exceptions are the Part 15 approved systems, but these low power alternatives are rarely used.  Other countries have similar requirements.  Playing by the rules will certainly prevent conflicts with government officials, since they can levy substantial penalties to offenders.  But more importantly, following the rules is the basis of good amateur radio manners.   __ Designed by RC-CAM T. Black

Caller ID Display Service -  Caller ID decoder based on 68HC11, text in French __ Designed by Matthieu Benoit

Caller IDs -  information and circuits for different systems used USA and Finland __ Designed by Tomi Engdahl

Character LCD Displays. Part 1 -  LCD character displays can be found in espresso machines, laser printers, children's toys and maybe even the odd toaster.  The Hitachi HD44780 controller has become an industry standard for these types of displays.  This tutorial will

Character LCD Displays. Part 2 -  This tutorial continues from Character LCD DisplaysPart 1.  In this part we will connect the LCD module to an Atmega8 microcontroller, then write some code to drive it.  The Circuit Our first task is to build the circuit.  Click to

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 __ Circuit Design by Donald Whitney Jr, Harris Semiconductor, Melbourne, FL

Circuit controls brightness of multiple displays -  05/30/02 EDN-Design Ideas 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 __ Circuit Design by Stephan Goldstein, Analog Devices, Wilmington, MA

Circuit Delivers Dimming Control for White-LED Driver -  10/28/04  EDN-Design Ideas The demand for power in color cell-phone handsets is constantly increasing.  New applications steadily emerge, making it imperative to reduce power consumption in the design.  Examination of usage data shows thatthan 50% of the power __ Circuit Design by Wallace Ly, National Semiconductor, Santa Clara, CA

Circuit for driving a liquid crystal (LCD) shutter to simply pass or block light -  Many of our customers request samples of a simple liquid crystal display shutter that can pass or block light.  Usually this light is in the visible spectrum, however occasionally we hear of applications where IR or UV wavelengths are involved.  If your application is for a shutter that operates outside the visible spectrum, please let us know at the time you request your sample.  __ Liquid Crystal Technologies

Circuit forms simple, low-cost, 1-kV driver -  13-May-04 EDN-Design Ideas High-voltage drivers have recently received much attention, because they play an important role in driving piezoelectric and electro-optical components, for example.  Figure 1 shows a simple, low-cost, 1-kV driver.  The circuit uses offline, current-mode-control techniques and a flyback switching-power-supply design __ Circuit Design by Tai-Shan Liao and Prasit Champa, National Science Council, Hsinchu, Taiwan

Circuit Makes Universal VCSEL Driver -  10-Jul-03 EDN-Design Ideas VCSELs  (vertical-cavity surface-emitting lasers] are commercially available infrared semiconductor lasers with λ≅850 nm.  Short-cavity-length, high-quality Bragg mirrors impart properties to VCSELs that differ from those that earlier __ Circuit Design by Andrzej Wolczko, Institute of Electronics AGH, Krakow, Poland

Circuit provides effective LCD drive -  09/28/00 EDN-Design Ideas LCDs find wide use in portable instruments, thanks to their attractive display and low power consumption.  The circuit in Figure 1 is an effective driver for LCDs.  The circuit comprises two main sections—the ICM7211 drivers  (IC2  __ Circuit Design by Luo Ben Cheng, Chinese Academy of Science, Beijing, China

Circuit Thermally Compensates LCD Contrast Bias -  03/16/95 EDN-Design Ideas The circuit in Fig 1 provIdeas digital control and automatic thermal compensation for LCD contrast bias.  This control and compensation eliminates the need for panel-mount hardware and frequent manual adjustment of LCD contrast in changing temperature environments.  Major components in Fig 1 include an inverting current-mode PWM regulator, __ Circuit Design by Damian Anzaldo, AVO International-Biddle Instruments, Blue Bell, PA

Circuit Tricks Increase LCD Contrast -  04/24/97 EDN-Design Ideas A popular combination in embedded designs is the Microchip Technology PIC µC mated to one of the many available LCD modules.  These combinations provide a low-cost, simple way to add intelligence to any design.  The LCD modules are specified to operate from one 5V supply, but the lack of a negative voltage to bias the LCD backplane severely limits the available LCD contrast.    __ Circuit Design by Steve Hageman, Hewlett-Packard, Santa Rosa, CA

Clamped AC-Input Video Cable Driver -  This circuit shows a means of driving composite video on standard 75Ω cable with just a single 3.3 V power supply.  This is possible due to the low output saturation levels of the LT6205 and the use of input clamping to optimize the bias point of the amplifi er for standard 1VP-P source video.  The circuit provides an active__ Linear Technology/Analog Devices App Note, Mar 25th 2010

Clock with Timer & Solar Panel Regulator -  This is a combination digital clock timer and solar panel charge controller used to maintain a deep cycle battery from a solar panel.  The timer output is used to control a 12 volt load for a 32 minute time interval each day.  Start time is set using 9 dip switches and ends 32 minutes later. __ Designed by Bill Bowden

Clock-Binary -  This clock displays the time in binary using discrete LEDs.  The use of Flowcode [1] makes it very easy to program the PIC controller in this project.  The circuit is very simple.  must register on this site __ Designed by Published in Elecktor July/Aug, 2010

Code Provides Adjustable Differential Drive for Robots -  10/16/03  EDN-Design Ideas Intelligently modifying the motor-drive commands to a robot can give you control finesse during competitions.  Moving a joystick hard right, for example, might have different effects, depending on the robot's speed and direction.  So __ Circuit Design by Alton Harkcom, EGO North America, Newnan, GA

Connect a 2x16 characters LCD display to a 4x4 keypA - D -  Connect some 2x16 characters LCD display and 4x4 keypad with AVR microcontroller__ © Vassilis Serasidis

Constant current, constant voltage converter drives white LEDs -  09/02/04  EDN-Design Ideas LEDs usually take their drive from a constant dc-current source to maintain constant luminescence.  Most DC/DC converters, however, deliver a constant voltage by comparing a feedback voltage to an internal reference via an internal error amplifier.  The easiest way to turn a simple DC/DC converter into a constant-current source is to use a sense resistor to convert the output current to a voltage __ Circuit Design by Keith Szolusha, Linear Technology Corp, Milpitas, CA

Control Brightness of Multiple Displays -  05/30/02 EDN-Design Ideas 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 __ Circuit Design by Stephan Goldstein, Analog Devices, Wilmington, MA

Controller Supports Differential Monitor Display -  06/24/99 EDN-Design Ideas You can assemble a differential monitoring display using rail-to-rail analog hardware and a 12C671 eight-pin controller (Microchip Technology, www.microchip.com) (Figure 1) .  The controller, IC1,  __ Circuit Design by William Grill, Riverhead Systems, Littleton, CO

Controlling slew times tames EMI in offline supplies -  14-Nov-02 EDN-Design Ideas EMI from offline switching power supplies typically causes all sorts of problems for power-supply designers.  You may need a large EMI filter to meet FCC emission requirements.  Switchers for high efficiency produce high-frequency switching noise that can propagate through the rest of the system and cause problems __ Circuit Design by David Canny, Linear Technology Corp, Milpitas, CA

Count Down Alarm, 3 LED Displays multiplexed & PIC16F84 -  Here I have added two fets for the time-out switch, it is like an electronic relay, just much more reliable it can be used to sound a big horn, or what ever you like. __ Designed by Thomas Scherrer OZ2CPU

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