![Inside the 74181 ALU chip: die photos and reverse engineering Inside the 74181 ALU chip: die photos and reverse engineering](https://www.electronics-lab.com/wp-content/uploads/2017/01/pics-die-layout-600.jpg)
Inside 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 Reading![Multiphase, 60V synchronous boost controller peaks at 97% Multiphase, 60V synchronous boost controller peaks at 97%](https://www.electronics-lab.com/wp-content/uploads/2017/01/170111edne-linear3897.jpg)
Multiphase, 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 Reading![Protect your boost converter Protect your boost converter](https://www.electronics-lab.com/wp-content/uploads/2017/01/DI5527f2.gif)
Protect 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 Reading![Step Up DC-DC Converter – 12V TO 28V DC 175mA Step Up DC-DC Converter – 12V TO 28V DC 175mA](https://www.electronics-lab.com/wp-content/uploads/2017/01/12V-TO-28V-stepup-converter-G082B.jpg)
Step 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 Reading![iKeybo, The Advanced Projection Keyboard iKeybo, The Advanced Projection Keyboard](https://www.electronics-lab.com/wp-content/uploads/2017/01/iKeybo_00right.jpg)
iKeybo, 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...
Continue Reading![Dintervalometer, A Custom Made Intervalometer For DSLR Cameras Dintervalometer, A Custom Made Intervalometer For DSLR Cameras](https://www.electronics-lab.com/wp-content/uploads/2017/01/ono-resins-1.jpg)
Dintervalometer, A Custom Made Intervalometer For DSLR Cameras
If you want to take a timelapse with your camera, it may be helpful to use an intervalometer. It is an attachment or facility on a camera that operates the shutter regularly at set intervals over a period, in order to take timelapse series or take pictures after a set delay. Daniel...
Continue Reading![ONO, $99 Smartphone-Powered 3D Printer ONO, $99 Smartphone-Powered 3D Printer](https://www.electronics-lab.com/wp-content/uploads/2017/01/ono-99-smartphone-powered-3d-pri-1024x576.jpg)
ONO, $99 Smartphone-Powered 3D Printer
Born in 2014 from the simple idea of making 3D printing accessible for everyone, Filippo Moroni and Pietro Gabriele worked on new technology to develop a high quality 3D printer that was affordable and easy to use. Their goal was to make the most diffused printer in the world and to...
Continue Reading![4 Channel Opto-Isolated Module Using High Speed 6N137 Optocoupler 4 Channel Opto-Isolated Module Using High Speed 6N137 Optocoupler](https://www.electronics-lab.com/wp-content/uploads/2017/01/4-Channel-Opto-Isolated-Module-C088B-500x500.jpg)
4 Channel Opto-Isolated Module Using High Speed 6N137 Optocoupler
4 Channel Opto isolated board has been designed around 6N137 Opto-coupler, the 6N137 optocoupler is designed for use in high-speed digital interfacing applications that require high-voltage isolation between the input and output. Applications include line receivers, microprocessors or...
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