High Performance Stereo Audio Amplifier using LM3886
The LM3886 is a high-performance audio power amplifier capable of delivering 68W of continuous average power to a 4Ω load and 38W into 8Ω with 0.1% THD+N from 20Hz–20kHz. The performance of the LM3886, utilizing its Self Peak Instantaneous Temperature (°Ke) (SPiKe) protection...
Continue ReadingOpen Source Meets Hardware: Open Processor Core
SiFive, the first fabless provider of customized, open-source-enabled semiconductors, had recently announced the availability of its Freedom Everywhere 310 (FE310) system on a chip (SoC), the industry’s first commercially available SoC based on the free and open RISC-V instruction set...
Continue ReadingSMART.IO, An Affordable Remote Control for Embedded Designs
Creating a smartphone application for your embedded products may be a high-cost process that consumes time and efforts. ImageCraft, a producer of high quality low cost embedded system tools, had developed “Smatr.IO” as a very cheap alternative solution that allows you to add a...
Continue ReadingInside the 74181 ALU chip: die photos and reverse engineering
A detailed die photos and reverse engineering of the 74181 ALU chip by Ken Shirriff: What’s inside a TTL chip? To find out, I opened up a 74181 ALU chip, took high-resolution die photos, and reverse-engineered the chip.1 Inside I found several types of gates, implemented with...
Continue ReadingMultiphase, 60V synchronous boost controller peaks at 97%
LTC3897 is a multiphase synchronous boost DC/DC controller with input surge stopper and ideal-diode controller. The boost controller drives two N-channel power MOSFET stages out-of-phase to reduce input and output capacitor requirements, enabling the use of smaller inductors versus...
Continue ReadingProtect your boost converter
T A Babu @ edn.com discuss about a protection circuit for boost converters. Boost converters are particularly susceptible to output shorts as there is a DC path from input to output. Usually a fuse, resettable or non-resettable, protects the system, but it is not always accurate or...
Continue ReadingStep Up DC-DC Converter – 12V TO 28V DC 175mA
The Step-Up DC-DC Converter project provides 28V, 175mA output with input of 12V DC. The MC34063A IC is heart of the project from On semiconductor. The MC33063A is a monolithic control circuit containing the primary functions required for DC-DC converters. This device consist of an...
Continue ReadingiKeybo, The Advanced Projection Keyboard
Serafim is a company of some talents and experts in optoelectronics industry, and it aims to offer affordable, useful, and cool consumer electronics for a better computing experience. The latest amazing product by Serafim is: iKeybo! iKeybo is a virtual projection multilingual...
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