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Search results: 467 Output: 31-40 Fran Hoffart, Linear Technology Design Note 491 Introduction Advances in low power electronics now allow placement of battery-powered sensors and other devices in locations far from the power grid. Ideally, for true grid independence, the batteries ... 01-02-2017 Jiaqi Shen EDN Continuous-wave laser diodes in precision-instrument applications require constant-current sources to drive them. Proper design of such a driver must involve careful tackling of robustness, stability, noise, and other issues and is ... 01-02-2017 Victor Khasiev, Linear Technology Design Note 553 Introduction Data loss is a concern in telecom, industrial and automotive applications where embedded systems depend on a consistent supply of power. Sudden power interruptions can corrupt data ... 24-01-2017 Abel Raynus EDN A microcontroller requires dc operating power in the 2 to 5.5 V range, an amount that a battery or a secondary power source can easily supply. However, in certain situations, a microcontroller-based product must operate directly ... 19-01-2017 Sajjad Haidar EDN A simple blocking oscillator circuit can be used to step up voltage using properties of coil inductance ( V = L di/dt ). Such a circuit is shown in Figure 1, which is more commonly called a Joule thief. Figure 1. Basic Joule Thief ... 19-01-2017 Jim Williams EDN You use a JFET's self-biasing characteristics to build a dc/dc converter that operates from power sources such as solar cells, thermopiles, and single-stage fuel cells, all of which deliver less than 600 mV and sometimes as ... 11-01-2017 Raymond Zheng, Linear Technology EDN The demand for negative-voltage power supplies is increasing with the popularity of applications for portable devices. It can be expensive and relatively complicated to generate a negative supply from a positive ... 06-01-2017 Michael Whybray EDN Most desk fans I have come across have three speeds: Full Speed, Almost Full Speed, and Off useless if you want just a gentle air movement, and far too noisy if you are trying to get to sleep (in your bedroom of course, not at ... 06-01-2017 Keith Szolusha EDN In certain dc/dc-converter applications, on-chip, cycle-by-cycle current limit may be insufficient protection to prevent a failure during a short circuit. A nonsynchronous boost converter provides a direct path from the input to ... 14-12-2016 Poonam Deshpande Electronic Design A basic combination of a photovoltaic panel, multiple LEDs, and a small dc-dc regulator can provide light in dark corners while also offering a modest auxiliary dc-power rail. A solar-powered, daytime-only lamp ... 14-12-2016
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