Encapsulated in a tiny 9.0×6.5×1.83-mm QFN package, the ISL8203M step-down DC/DC power module from Intersil furnishes an adjustable output voltage between 0.8 V to 5 V to allow designers to use one device to build a single 6-A or dual 3-A output power supply. The ISL8203M simplifies power-supply design for FPGAs, ASICs, microprocessors, DSPs, and […]
Intersil shrinks step-down DC/DC power module Continue Reading
The TPS2378 is an IEEE802.3at (Power over Ethernet) Powered Device controller, featuring internal pass MOSFET for loads up to 25.5W, Type 1 (a.k.a. 802.3af) compatibility and auxiliary power source support. The IC is normally used together with a DC-DC step down regulator to power a network device (the PD) from a PoE compliant switch or
Power over Ethernet Flashlight Continue Reading
Also, check out Power Laces: Version 2.0 Why wait until 2015? Inspired by ‘Back to The Future II’, this project is less ‘Practical’ than ‘Proof of Concept’, but hopefully it’ll tide you over until Nike comes out with something more polished. This was also the first time I worked with an Arduino microcontroller, and I
Power Laces- the Auto lacing shoe Continue Reading
Instantaneous Voltage and current AC Voltage and current continually alternate, as the name suggests, if we draw a picture of the voltage and current waveform over time, it will look something like the image below (depending on what’s using power – the current waveform – blue in the diagram below – is what you get
AC Power Theory – Arduino maths Continue Reading
This Instructable shows you how to build a four-gang outlet box in which each outlet is controlled via an Arduino (or any other TTL level signals). It differs from the other relay boxes in that it uses no circuit boards and has very few parts (one chip and 4 relays). Step 1: Assemble Materials/Review Plan Tools
Yet Another Arduino 110v Power Controller Continue Reading
Cree has introduced a multi-die 500 lm (80CRI, 3,000K) surface-mount lighting LED, aiming to compete against multiple single-die medium-power LEDs in automated luminaire manufacture. The idea is analogous to the way bolt-down multi-die chip-on-board modules (CoBs) are taking-on single-die LED boards in manual assembly lighting manufacture. Named MH-B, the new LED “combines the reliability and
Surface-mount array takes on medium-power lighting LEDs Continue Reading
Old cellphones are easy to acquire and they have built in lithium charging circuitry. What a wonderful base for a power supply for small mobile things. I hooked up a cellphone to the arduino with the ability to charge the cellphone when you plug the arduino into the usb port. Please note that this was
Power Arduino with a cellphone Continue Reading
First of all lets get this out of the way… It’s so bad This is going to be showing how to hack the Nintendo Powerglove. By hack I mean tap into the flex sensors and use the buttons and d pad and add anything you want. In my case I added an accelerometer. I got mine from
Hacking a Powerglove using Arduino Continue Reading
Part 1. Analog Front-End. Opto-Isolator. Looking at the Power Quality Analyzer display, I was wandering, if there is any error in the measurement results, introduced by transformer. Overall THD picture doesn’t change much, suspiciously drawing same chart in the morning and in the evening, when electrical grid load significantly differs. Obviously, to estimate effect of
Power (Energy) Meter using Arduino Continue Reading
