Powered USB Hub Help PC Interface
I got a strange problem as i added more and more peripherals, the pc gave odd messages, “i cannot detect what you are doing” and things like that. I almost flipped trying to locate...
Category: Schematics
Bicycle Light Projects
Bicycle Light Projects Constructing or modifying a bicycle lighting system should be done carefully to enhance the lighting and not displace a minimum lighting that is needed for safety.In rural areas and mountain bikes...
GainClone Chipamp Audio Amplifier
Gainclone or chipamp is a type of audio amplifier made by do-it-yourselfers, or individuals interested in DIY audio. It is a design based on high-power integrated circuits, particularly the National Semiconductor Overture series. GainClone...
Supercap and White LED and Energy Harvesters
This is a educative and simple example to help learn about supercaps and white LED. It will also help you understand component behavior. If you are learning electronics, try this one out. The goldcap-Dynamo...
gEDA Project – Electronic Design Automation tools
The gEDA project has produced and continues working on a full GPL’d suite of Electronic Design Automation tools. These tools are used for electrical circuit design, schematic capture, simulation, prototyping, and production. Currently, the...
4QD-TEC: Electronics Circuits Reference Archive
Here is a circuit archive that takes you up, from the bottom rungs of the EE Semiconductor Design Ladder. There are many Discrete Transistor Designs, NPN and PNP with R, L and C. Bipolar...
Emergency Light with Fluorescent Tubes
Emergency Light for Portable Use. Note Charger and Battery not Shown. Design from Ludens. 12 Volt fluorescent lamp drivers: Three schematics of 12 V drivers for 2, 8 and 20 Watt, plus a lot...
One Watt Mains LED Lamp or Tubelight
Lots if Light on One Watt, yes this works, but should be built by those experienced in High Voltage usage and Knowledge of insulation techniques.
