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Interfacing to Microprocessor Based 5V Systems
AN50 Linear Technology This App Note discusses a variety of approaches for interfacing analog signals to 5V powered systems. Synthesizing a "rail-to-rail" op amp and scaling techniques for A/D converters are covered. A voltage-to-frequency converter, applicable where high resolution is required, is also presented. __ Linear Technology/Analog Devices
Interfacing to V.35 Nertworks
DN94 Design Notes__ Linear Technology/Analog Devices
iPOD Charger
The circuit's pretty simple, basicly it's just a voltage regulator. Both the LM317 and the REG1117A (LDO) fit the PCB, maybe there are even more types that I'm aware of that can be used on it. I did add one extra thing: a LED that shows if the connected device is consuming power. To do this I used a shunt resistor and a current converter. I choose 0.2 ohm for the shunt, since it's not hard to come by and should only drop 0.1VAT500mA. Either an INA168 (current output) or an INA193-198 (INA194 is best in this case) (voltage output) will fit as current converter. The trip point at which the LED should start to burn can easily be adjusted by one resistor (in case of the INA168) or by two (in case of the INA193-198). In the schematic it is set at 100mA using an INA168 using a 950k resistor. The Schmit buffer is a Texas Instruments Little Logic chip (1G17).
iPod Nano 6th Generation Stuck Buttons
Being used in a mountain-top repeater, our TM451 transceivers suffered severe frequency shifts as the temperature varied. They are exposed to temperatures as low as -15C in winter and as high as 45C in summer, and the original crystal oscillator is too sensitive to this variations. We measured the repeater to be as high as 2.5Khz up or down in frequency depending on ambient temperature, and we looked for a solution __ Designed by Roberto Barrios EB4EQA
IR Remote Control for Home Appliances
IR Remote Control for controlling home appliances can be easily made using Decade Counter CD4017, 555 Timer and TSOP1738 infrared receiver. By using this circuit you can easily control your home appliances using your TV, DVD Player remote control or using a remote control circuit described here. __ Designed by Abhay Bajpai
IrDA interface for your mainboard
ASCII format __ Contact: IQ Technologies
ISA bus provides access to serial peripherals
02/17/97 EDN-Design Ideas Designers often switch from parallel to serial data-interface configurations to save pins and shrink IC packages. A serial interface consists of one bidirectional data line, a clock line, and--sometimes--additional control lines or lines that organize data transfers. You can easily connect peripherals with serial interface to the ISA bus through an I/O port that latches control and data bits. By sending appropriate bit patterns to such a port, you can set data and control lines and toggle the clock to send information to and receive information from the peripheral bit by bit. Design by Jerzy Chrzaszcz, Warsaw University of Technology, Warsaw, Polandby
Isolated Full Duplex RS232c Interface
This self powered interface circuit electrically isolates the TxD and RxD lines from the PC serial port and protect the PC from direct connection to hazardous voltages. __ Designed by M Asim Khan
Isolated indicator signals telephone line's status
06/08/06 EDN-Design Ideas Micropowered circuit shows off-hook phone Design by Yongping Xia, Navcom Technology, Torrance, CA
Isolated Monitors AC line
5-Jul-07 EDN-Design Ideas A simple circuit develops a square wave whose pulse width is proportional to the mains-voltage level Design by David Williams, Millington, MI
Isolated Power Supplies for Local Area Networks
DN31 Design Notes __ Linear Technology/Analog Devices
Isolated Power Supply with Virtual Remote Sense
The LT4180 solves the problem of providing tight load regulation over long, highly resistive cables without requiring an additional pair of remote sense wires. This Virtual Remote Sense device continuously interrogates the line impedance and corrects the power supply output voltage via its feedback loop to maintain a steady voltage at the load regardless of current changes. __ Linear Technology/Analog Devices App Note, Jun 7, 2010
Isolated RS232 for PIC16F84
Connect serial transmit bit of the transformerless supply PIC16F84 circuit with COM1 through the use of isolation device. Protect your notebook from direct connected to power line. __ Designed by Wichit Sirichote
Isolated RS485 Transceiver Breaks Ground Loops
DN228 Design Notes__ Linear Technology/Analog Devices
Isolated USB-to-UART converter builds in 20 minutes for $20
EDN-Design Ideas 08/31/2015 This Design Idea describes a simple project that embedded developers will love for keeping their computers safe from rogue USB devices Design by Jacob Beningo
ISP Flash Programmer V3.0a
Flash programmer using ISP designed by M Asim Khan for AVR and 89Sxx series. Updated software! (recommended for applications) __ Designed by Wichit Sirichote
Issues in implementing queuing & scheduling for high performance routers
10/26/00 EDN-Design Ideas As the core market for backbone routers moves from OC-48 speeds to OC-192 and beyond, system designers face a host of challenges, including the need for queuing and scheduling mechanisms to implement QoS (quality-of-service) capabilities that are a business requirement for the next generation of wide-area networks. Design by Praveen Kumar, Vitesse Semiconductor Corp
Itchycoo Tape Flanger
An authentic tape flanging effect system using easily obtainable three-head cassette machines as the core. Also useful for tape feedback and echo effects. __ Designed by Henry
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