![SparkFun: A look inside some common power supplies SparkFun: A look inside some common power supplies](https://www.electronics-lab.com/wp-content/uploads/2015/12/molex_topside.jpg)
SparkFun: A look inside some common power supplies
MTaylor @ sparkfun.com takes a look inside different power supplies he has on his box. Power supplies are everywhere these days. With the advent of switching power supplies, the cost of high-current supplies has radically dropped. Maybe you’ve noticed how the large, heavy,...
Continue Reading![SRF01 Sensor teardown and reverse engineering SRF01 Sensor teardown and reverse engineering](https://www.electronics-lab.com/wp-content/uploads/2015/12/andur-e1450690891878.jpg)
SRF01 Sensor teardown and reverse engineering
Jaanus Kalde wanted to know why his SRF01 sensor fails after dropping from the air so he did a reverse engineering on it. I needed small ultrasonic sensors for a flying sensor. So I got the smallest one - SRF01. Quite nice unit, works down to 0 cm. There were some problems with it -...
Continue Reading![Little Helper: an ARM powered mobile device Little Helper: an ARM powered mobile device](https://www.electronics-lab.com/wp-content/uploads/2015/12/Oben_Komplett-e1450110377624-750x410-e1450690046669.jpg)
Little Helper: an ARM powered mobile device
Phillip Schuster has build a portable device featuring some ports to connect stuff like sensors and other circuits and some menu driven user interface to trigger various modules doing tests, reading data etc. Working in my lab with electronics I came across different little...
Continue Reading![Switch Mode Power Supply (SMPS) Topologies (part I) Switch Mode Power Supply (SMPS) Topologies (part I)](https://www.electronics-lab.com/wp-content/uploads/2015/12/apps.png)
Switch Mode Power Supply (SMPS) Topologies (part I)
Microchip's application note describes the basics of different SMPS topologies: The industry drive toward smaller, lighter and more efficient electronics has led to the development of the Switch Mode Power Supply (SMPS). There are several topologies commonly used to implement SMPS....
Continue Reading![Replacement LED driver for AN6877 Replacement LED driver for AN6877](https://www.electronics-lab.com/wp-content/uploads/2015/12/aflevelmeter.png)
Replacement LED driver for AN6877
Dilshan Jayakody has designed a board to replace AN6877 base LED drivers using discreet transistors. He writes: AN6877 is linear AF level meter IC produced by Panasonic and it is commonly found on many audio equipment. This chip is no longer manufactured by Panasonic and finding...
Continue Reading![Raspberry Pi Tutorial: Create your own GUI with TkInter and Python Raspberry Pi Tutorial: Create your own GUI with TkInter and Python](https://www.electronics-lab.com/wp-content/uploads/2015/12/raspberry-pi-tutorial-create-you.jpg)
Raspberry Pi Tutorial: Create your own GUI with TkInter and Python
educ8s.tv shows us how to build a graphical user interface on Raspberry Pi using TkInter and Python. Having a Graphical User Interface (GUI) on a touch screen makes controlling your Raspberry Pi so much easier. With Python and TkInter one can develop his own GUI very easily. In this...
Continue Reading![Tutorial on the Theory, Design and Characterization of a CMOS Transimpedance Amplifier Tutorial on the Theory, Design and Characterization of a CMOS Transimpedance Amplifier](https://www.electronics-lab.com/wp-content/uploads/2015/12/tutorial-on-the-theory-design-an-1024x576.jpg)
Tutorial on the Theory, Design and Characterization of a CMOS Transimpedance Amplifier
In this episode, Shahriar and Shayan discuss the design and characterization of a deceptively simple CMOS inverter-based transimpedance amplifier. The the large and small signal behavior of the CMOS inverter is discussed and measured using the Keithley 2450 and 2460 source meters. The...
Continue Reading![LT3091 – –36V, 1.5A Negative Linear Regulator with Programmable Current Limit LT3091 – –36V, 1.5A Negative Linear Regulator with Programmable Current Limit](https://www.electronics-lab.com/wp-content/uploads/2015/12/3091.png)
LT3091 – –36V, 1.5A Negative Linear Regulator with Programmable Current Limit
Linear Technology Corporation announces the LT3091, the latest addition to our LDO+ family, a 1.5 A low dropout negative linear regulator featuring low noise, rail-to-rail operation, precision programmable current limit and a bidirectional output current monitor. The device is...
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