All about electronics and circuit design

Filter injects noise

RC filter or amplifier’s lowpass filter at the input of a delta-sigma ADC is normally put there to reduce noise. But sometimes adding a filter can produce a noisier digital output than without that filter. Using an analog filter to inject noise article tells that it is as easy to eliminate higher-frequency noise with an

Augmented Reality in a Contact Lens

Researches are developing a new generation of contact lenses built with very small circuits and LEDs. They promises bionic eyesight in the future. Bionanotechnology researcher Babak A Parviz writes about his research toward producing a computer interface in a contact lens at IEEE Spectrum article Augmented Reality in a Contact Lens. The author states that,

See inside PC parts

You may know what the inside of a PC looks like, but what about the parts which make up your PC components? Your Hardware Exposed! 22 PC Parts Bare All article has pictures what is inside hard drives, keyboards, soundcards, and a plethora of other PC hardware. Just to see what makes them tick.

Open Source Licenses

Open Source Licenses document Zack Rusin published at KDE web site gives a good overview of different open source licenses. Here you can find the most important details of the most commonly used open source licenses in a very compact easy to understand format.

Learn how to roll cables

Learn how to roll audio cables to avoid tangling. There are several good videos on Internet which tech you how to do that. How to Set Up PA Systems : How to Roll Audio Cables video gives you instructions how to roll audio cables to avoid tangling and tips on PA sound system setup.V1 Cable

Resistance soldering

Resistance soldering is a soldering method that sometimes useful for hobby work. In this soldering methid an electrical current is flowed through one work piece, the joint and then the other work piece. Current through a resistances on the way generates heat. Most heat is normally generated on the joint because the resistance there is