Need to switch something on or off using a microcontroller? Using a transistor is one of the best ways to do this, but how exactly do you design properly for transistor switching? [Ben Krasnow] put ...

Single-phase and 3-phase AC squirrel cage induction motors need some type of control circuit to initiate a start or stop function. The two types of ladder control circuits commonly used are the 2-wire ...

The circuit has been designed for the purpose of creating a portable unit of preamplifier that would function as standalone control for gutitars. TL062 – a low power JFET dual operational amplifier ...

In Part 1 of this two-part series, we presented a 3-phase, 480VAC motor circuit with its associated controls (Figure). We stepped through a logical, systematic approach to troubleshoot the main power ...

The project intends to create a sprinkler controller that can be used as an interface wherein system valves or zones will be managed. A perfboard with wire wrap for the control/logic portions can be ...

Short circuit current ratings should not be overlooked during panel design. Negative impacts can occur to production, equipment and, worst case, plant personnel. Per 2014 NEC Article 100, short ...

Rik is Pocket-lint's senior news editor and has been a tech and games journalist since the 80s. He has seen and covered just about every console, mobile phone, gadget and home cinema device launched ...

With its ability to store and transmit genetic information, DNA offers molecular cogs and gears that researchers can harness to produce biological circuits. Cells typically rely on gene expression to ...

GameSpot may get a commission from retail offers. Mad Catz has a new controller on the market that promises to marry customization with solid construction in a package suitable for competition on a ...