How to Build a Class-D Power Amp
Audio

How to Build a Class-D Power Amp

Cezar Chirila @ allaboutcircuits.com shows how to build a Class-D amplifier which has amazing efficiency. What is a Class-D audio power amplifier? The answer could be just a sentence long: It is a switching amplifier. But in order to fully understand how one works, I need to teach...

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Exploring Eagle CAD ULPs #1 – PickUp.ULP Select Components Both in Schematic And Layout
PCBSoftware

Exploring Eagle CAD ULPs #1 – PickUp.ULP Select Components Both in Schematic And Layout

Welcome to the first post of the “Exploring Eagle CAD ULPs” series. Every week we will publish a new post about one useful ULPs in Eagle CAD. "ULP" User Language Program is a plain text file which is written in a C­-like syntax and can be used to access the EAGLE data structures...

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kitnic.it – Share your board and Order parts with one click
Websites

kitnic.it – Share your board and Order parts with one click

Kaspar tipped us with his nice website which allows you to download Gerbers of a board and order associated parts with one click. Currently supporting: Mouser, Digikey, RS, Newark and Farnell. Kitnic is a registry of open hardware electronics projects that are ready for you to order...

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Matrix driver IC supports up to 192 LEDs
IC

Matrix driver IC supports up to 192 LEDs

Integrated Silicon Solution has released a family of high performance LED drivers, IS31FL3733, IS31FL3736 and IS31FL3737 to support LED matrices consisting of 192, 96 and 144 LEDs respectively. By Julien Happich @ edn-europe.com ISSI’s LED matrix architecture provides designers...

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60V-input battery charger; Pb-acid & Li-ion charge algorithms up to 20A
IC

60V-input battery charger; Pb-acid & Li-ion charge algorithms up to 20A

LTC4013 is a highly integrated, high voltage multi-chemistry synchronous step-down battery charger controller. With a wide input voltage range that spans up to 60V, the LTC4013 uses temperature-compensated 3- and 4-stage charge algorithms to efficiently charge 12V and 24V lead-acid...

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Lithium ion batteries that work best at 95°C
Technology

Lithium ion batteries that work best at 95°C

Numerous laboratories are working towards reducing or eliminating the accidental risks of Li ion batteries by working on solid electrolytes. Researchers at ETH at Zurich are developing unique solid materials which even when brought to high temperatures will not ignite. by Denis Meyer...

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Comparing the Top 5 PCB CAD Programs
Software

Comparing the Top 5 PCB CAD Programs

sfcircuits.com compares the top 5 PCB CAD Programs, DipTrace, Eagle, Altium, Pads and Orcad: There are several programs available that range from simple and intuitive to highly sophisticated. They range from free or inexpensive to high-end/premium. They come feature-less or...

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EspoTek Labrador – Oscilloscope, Signal generator, Power supply in one tiny board
Test/Measurements

EspoTek Labrador – Oscilloscope, Signal generator, Power supply in one tiny board

EspoTek Labrador is a small, portable, USB-connected electronics lab-on-a-board that includes an oscilloscope, waveform generator, power supply, logic analyzer, and multimeter. The EspoTek Labrador plugs directly into a solderless breadboard and connects to any Windows, Mac, or Linux...

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