Extech GX900 vs Fluke 287 Graphical Multimeter Review
https://www.electronics-lab.com/extech-gx900-vs-fluke-287-graphical-multimeter-review/
This is a review of the Extech GX900 vs Fluke 287 Multimeter Extech Is owned by FLIR. Thanks to FLIR for providing the GX900 for this review. Extech GX900 vs Fluke 287 Graphical Multimeter Review – [Link]
Siglent SDM3055A (SDM3055) 5.5-Digit Multimeter Review, Teardown & Experiments
https://www.electronics-lab.com/siglent-sdm3055a-sdm3055-5-5-digit-multimeter-review-teardown-experiments/
In this episode Shahriar reviews the Siglent SDM3055A (SDM3055) 5.5-Digit Multimeter. After a brief look at the instrument’s datasheet, a full teardown is presented. The instrument utilizes a two-board design and a large LCD screen. The SDM3055A provides a comprehensive set of measurements including capacitance as well as various graphing capabilities including histogram, trend and […]
Scullcom Hobby Electronics #26 – Build a Function Generator Part 2
https://www.electronics-lab.com/scullcom-hobby-electronics-26-build-a-function-generator-part-2/
by Scullcom Hobby Electronics @ youtube.com This is part 2 of the building a function generator. We cover the output stage and discuss some changes to the original design. Finally, we build the project in to a case and test. Below are the links to the latest main schematic diagram and a second file for the […]
Infineon’s Security Chip
https://www.electronics-lab.com/infineons-security-chip/
by Martin Cooke @ elektormagazine.com: Protection of Intellectual Property is a major issue as industrial systems become increasingly more interconnected. According to Bartol Filipovic, head of the Product Protection and Industrial Security department at the Fraunhofer Institute for Research “Most companies have no idea just how easy it is to copy their products, encrypted software is […]
Circuit adds foldback-current protection
https://www.electronics-lab.com/circuit-adds-foldback-current-protection/
by Rafael Garcia-Gil @ edn.com: For many applications that require power-supply currents of a few amperes or less, three-terminal adjustable-output linear voltage regulators, such as National Semiconductor’s LM317, offer ease of use, low cost, and full on-chip overload protection. The addition of a few components can provide a three-terminal regulator with high-speed short-circuit current limiting for […]
Use an LM317 as 0 to 3V adjustable regulator
https://www.electronics-lab.com/use-an-lm317-as-0-to-3v-adjustable-regulator-2/
by Vladimir Rentyuk @ edn.com: Most engineers know that they can use an inexpensive, three-terminal adjustable regulator, such as Fairchild Semiconductor’s LM317, as an adjustable regulator to only some necessary value of voltage, such as 36 or 3V. This value cannot be less than 1.25V without employing other approaches, however. The devices’ inner reference voltage is […]
Making the new silicon: Gallium nitride electronics could drastically cut energy usage
https://www.electronics-lab.com/making-the-new-silicon-gallium-nitride-electronics-could-drastically-cut-energy-usage/
by Rob Matheson @ phys.org: An exotic material called gallium nitride (GaN) is poised to become the next semiconductor for power electronics, enabling much higher efficiency than silicon. In 2013, the Department of Energy (DOE) dedicated approximately half of a $140 million research institute for power electronics to GaN research, citing its potential to reduce worldwide […]
WIFI Mains Power Dimmer / Switch
https://www.electronics-lab.com/wifi-mains-power-dimmer-switch/
MAINS Power Dimmer / Switch Module project by Tracker J: Now it’s about time to talk also about what many of you has asked for: DIMMING! It’s a total different story, little bit complicated but, as you will see, not so hard to understand. General considerations: There are several types of dimmers generally available. These […]
Have you ever seen a fan resistant to dust and water?
https://www.electronics-lab.com/have-you-ever-seen-a-fan-resistant-to-dust-and-water/
New series of Sunon fans with IP68 protection brings reliability even to conditions, where a usual fan doesn´t withstand too long… Still more noise and vibrations and in extreme case even a total malfunction – this is a typical “end” of the fan after a long-time operation in a dusty or corrosive environment. In a […]
Simple Acoustic Guitar Sound Receiver
https://www.electronics-lab.com/simple-acoustic-guitar-sound-receiver/
This design of acoustic sound receiver features low power operational amplifier. It has rail-to-rail input/output and 0.85mA supply current per amplifier. It uses piezo speaker as its microphone that can be attached to easily due to its size and dimension. The circuit is comprised of MCP6L91RT-E/OT 10 MHz, 850 µA operational amplifier that is used […]