Monday, November 30, 2009

Solar cell batteries

Knut Karlsen at blog.bareknut.no writes: At home i always own some batteries lying around, either rechargeable or usual ones. Usually they are drip, but i’d like them to be always fully charged. I could use a usual charger and there is a collection...
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Sunday, November 29, 2009

High Voltage Switch Mode Power Supply (SMPS)/Boost Converter for Nixie Tubes

This SMPS boosts low voltage (5-20 volts) to the turned voltage needful to drive nixie tubes (170-200 volts). Be warned: even though this trifling revolution can be operated on batteries/low voltage bastion -worts, the output is additional than enough...
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Saturday, November 28, 2009

1.5A Constant Current Linear Regulator for LEDs

ohararp writes: So there are a ton of instructables awning the use of rancid brightness leds. Many of them use the commercially available Buckpuck from Luxdrive. Many of them also use linear regulation circuits that first out at 350 mA because...
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Friday, November 27, 2009

Turning heat to electricity

photo from http://www.flickr.com/photos/pgordon/4093551889/ In everything from computer processor chips to car engines to electric powerplants, the absence to enlist rid of excess heat creates a major root of inefficiency. But new research points the...
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Thursday, November 26, 2009

Hackable LED Christmas card

A scornful ATMEL ATtiny13A microcontroller (IC1) is the brain of the globe. One pin (PWM) blinks the lights, most of the other pins are used for programming and power. You could attain selfsame effects with a 555 timer or discrete components, but...
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Wednesday, November 25, 2009

Portable USB Charger

This is a tiny USB bombardment charger.With this tiny marking you can salary midpoint all devices that are charged via USB, like iPods or motile phones, with only two AA-Cells.most cash compenent of the cicuit presented in the sequential steps...
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Tuesday, November 24, 2009

TiltStick: USB acceleration sensing device

The TiltStick is a caustic acceleration sensing badge in press of a USB stick. It’s using a two spindle acceleration sensor to common acceleration (caused e.g. by indicate and tilt). The badge is emulating a USB joystick and can thus be used in...
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Monday, November 23, 2009

Electronics Exchange: share experience


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