Analog Design
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Teardown reveals Chevy Volt's electronic secretsRick DeMeis, Automotive Designline, May 10, 2012Beyond battery chemistry and electric propulsion and control, the Chevy Volt enhanced-range electric vehicle builds in flexibility, ruggedness, and diagnostics—with attention to quality construction. More
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10 measurements defining signal integrityHoward Johnson, PhD, May 10, 2012All of these problems harbor subtle difficulties, as well as sparkling gems of insight. Master them, and you will become a guru of the art. More
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Understand and characterize envelope-tracking power amplifiersGerard Wimpenny, Nujira Ltd, May 10, 2012In contrast to fixed-supply power amps, the performance of an envelope-tracking power amplifier is not self-contained and requires substantially more data to predict system performance. More
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Build a digital PLL with three ICsDave Allen, Dash Inc, Kansas City, KS, May 10, 2012A counter’s self-presetting feedback loop hunts for the center count. More
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Long shots, short shots, and hip shotsVance Harwood, consultant, May 10, 2012Production of one company's new automatic-test systems screeched to a halt when a simple self-test for the driver output’s path resistance started intermittently failing. What was the cause? More
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Do new technologies ease small-scale product innovation?Bill Schweber, Contributing Technical Editor, May 10, 2012PC-based simulation and tools, manufacturing setups, and production equipment mean that it is easier to develop lower-volume products. More
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Remote display technology lets users fully experience cloud contentRaj Pawate, Distinguished member, Technical Staff, Texas Instruments Incorporated, May 9, 2012The cloud can provide content almost anywhere, anytime. Often, however, the device where the content ends up is not ideal for viewing, sharing and experiencing it. Remote display technology provides an effective path around this dilemma. More
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High-performance HF transceiver design: A ham's perspectiveDoug Grant, May 3, 2012Designers of equipment for radio amateurs face the same problems as designers of most other systems - squeezing the last dB of performance from off-the-shelf components. Some ingenious designs have evolved, using analog, digital and DSP technology. More
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PCB and ESR subtleties in switching regulator and LDO designsKern Wong, Principal Applications Engineer, Texas Instruments, April 27, 2012This article focuses on some key layout subtleties and points out several frequently overlooked design parameters and design considerations relating to ESR, load capacitors, vias, and feedback networks. More
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OEM-ready wireless sensor site launchesSteve Taranovich, Senior Technical Editor, April 26, 2012Monnit Corporation has launched OEMSensors.com with a new line of OEM-ready wireless sensors, gateways and back-end monitoring software targeting broad lines of commercial, industrial and M2M applications. More
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An introduction to capacitive sensing, part 1Pushek Madaan and Priyadeep Kaur, Cypress Semiconductor, April 24, 2012There are various methodologies, guidelines, and know-how related to all development phases, from design to production of capacitive sensing-based keypads, all of which contribute to reducing time-to-market by a significant amount. More
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Understanding the basics of setup and hold timeDeepak Behera, Karthik Rao C.G. and Deepak Mahajan, Freescale Semiconductor, April 19, 2012Setup and hold times are treated as intrinsic properties of an element. However, it is the very existence of setup and hold time that often confuses us. Here are the cause of setup and hold time within a sequential element (flip-flop) and a look at the operation of the flop. More
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Teardown: The nuances of variable-frequency drivesSteve Taranovich, Senior Technical Editor, April 19, 2012Get an inside view of induction-motor control by varying frequency using PWM.More
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EMI problems? Part three: strength of EMI-radiated signalsBonnie Baker, Texas Instruments, April 19, 2012Now that we have identified EMI sources we are going to see what happens as the signals are radiated towards your boards. More
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Smack attackTerry Staler, Specialty Concepts Inc, April 19, 2012Amid a maze of wires, a junior engineer must find out why his company's telephone-usage-monitoring equipment is failing. More
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Linearize optical distance sensors with a voltage-to-frequency converterJordan Dimitrov, Toronto, ON, Canada, April 19, 2012Create the mathematical inverse of an analog voltage by converting it to frequency and measuring the period. More
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Monitor circuit conserves battery energyBrian Huffman, Linear Technology Corp, Milpitas, CA, April 19, 2012Use a sampled-data technique to lower a monitor circuit’s average power consumption. More
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Low-voltage motor drivers suit battery-powered applicationsSteve Taranovich, Senior Technical Editor, April 18, 2012Stepper, brushed DC motor drivers reduce power consumption and board space. More
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Design calculations for robust I2C communicationsChris Parris, Senior Applications Engineer and Jonathan Dillon, Senior Applications Engineer, Memory Products Division, Microchip Technology Inc., April 18, 2012The I2C bus topology relies on correctly sized resistance pull-ups for reliable, robust communications. Getting these values wrong can lead to erroneous bus conditions and transmission errors caused by noise or changes in temperature and operating voltages, and by variations between devices. More
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Two-wire Hall sensors target body electronicsRick DeMeis, April 17, 2012The sensors are equipped with an EEPROM memory, allowing the setting of customer-specific parameters for magnetic switch points, output polarity, IOFF current, and magnet material temperature compensation coefficient. More
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