The solar energy collection is not that easy compared to the different types of power generation system because it has the lowest capacity factor. It has 5 out of 24 hours in a day that it can generate electricity from its solar collection. The only solution to this is by optimizing the 5 hours solar […]
Optimized Solar Tracking System Read More »
Common-Emitter and Common-Collector Transistor Amplifier Calculator for High-frequency Operation Analysis of the bipolar transistor amplifier at low-frequency is relatively easy, and several calculators exist online that do a good job. For high-frequency operation, there are fewer references available. For my projects, I like to build a reference spreadhseet where everything is in one place. This
High- Frequency Transistor Amplifier Calculator Read More »
The ATMega168 is a great general purpose 8-bit AVR microcontroller from Atmel. It has 23 GPIO pins, but sometimes (as I have found) you can run out of I/O pins as your design grows. This happened to me recently when, of the 23 GPIO pins available, 2 were taken up by an external ceramic resonator,
Read multiple switches using ADC Read More »
An application note from Texas Instruments, white LED driver with digital and PWM brightness control (PDF!): With a 40-V rated integrated switch FET, the TPS61160/1 is a boost converter that drives LEDs in series. The boost converter runs at 600kHz fixed switching frequency to reduce output ripple, improve conversion efficiency, and allows for the use
App note: White LED driver with digital and PWM brightness control Read More »
(a) A low-magnification tunneling electron microscope (TEM) image of Gr–Si nanoparticle (NP). (b) A higher-magnification image for the same Gr–Si NP from the white box in a. (Insets) The line profiles from the two red boxes indicate that the interlayer spacing between graphene layers is ~3.4 Å, in good agreement with that of typical graphene layers
Samsung Researchers Nearly Double Lithium-ion Battery Capacity Read More »
High efficiency, low standby power consumption and a power reserve, all this can be gained with a new adapter from our portfolio. Minwa NR120P150PGS/E+ is in fact an “ordinary“ adapter with a fixed output voltage 12VDC/1500 mA. But it´s worth to mention, that it meets everything, what we usually require from a modern mains adapter:
Plus 50% of power for a scant one Euro? Read More »
First Impressions Bench power supplies aren’t really pieces of kit that get your pulse racing, they just sit there doing their job, in some cases giving gentle background heating to keep the lab warm in the winter and providing enough ballast to stop your bench wobbling about too much. The traditional bench top power supply
Rohde & Schwarz HMC8043 PSU: Review and Teardown Read More »
We have already seen a number of ideas for tracking tags seeking funds on Kickstarter, most systems are limited by the range of Bluetooth communication with a smart device. This system from Iotera tackles the problem using cloud-based thinking: The basic wireless system consists of one or more tags or ‘iotas’ and a home base
Novel Cloud-based Tag System Read More »
During the month of July I was visiting Beijing and had an extra 10 days to spare. What to do? Well it took me less than a few minutes to decide to go the wonderful city that is Shenzhen… Shenzhen is the geek’s paradise and can be described as an awesome concentration of very different
Video Series – Touring Factories in Shenzhen Read More »
Learn how to create your own low cost wireless sensors and connect them to the world. Store your sensor data at home or in our cloud. We provide fancy graphs and other great online tools to help you manage and analyze your sensor data! For more detail: mysensors.org – Learn how to create your
mysensors.org – Learn how to create your own low cost wireless sensors Read More »
