MOVIE MAKER

Like real movies, this circuit makes use of a characteristic of the human eye and brain known as the persistence of vision. A sequence of still pictures is projected onto a...

MOTOR CONTROL THROUGH PWM

Motion control plays a vital role in industrial automation. It is required in manufacturing plants of industries like chemical, pharmaceutical, plastic and textile. And it may be a flat-belt application, flow-control...

Call Bell With Welcome Indication

Here is a simple call bell circuit that displays a welcome message when somebody presses the call bell switch momentarily. The alphanumeric display can be fitted near the call bell switch. The...

“Unified communications is going to become a key competitive advantage”

Building on a heritage of more than a hundred years of voice communications excellence, Siemens Enterprise Communications is one of the global leaders in unified communication solutions. It provides comprehensive communication...

Multimeters For High-End Testing

Multimeters—the simplest electrical testing tools—have evolved as high-end electrical and electronic testing equipment to serve complex testing needs. Today, these incorporate a higher level of integration, connectivity and advanced features SHWETA DHADIWAL...

CASH BOX GUARD

Most thefts happen after midnight when people enter the second phase of sleep called 'paradoxical sleep.' Here is a smart security circuit for your cash box that thwarts the theft attempt...

“I knew Open Source hardware was a necessity to redesign into newer hardware”

Marcus Erlandsson has been in the semiconductor business since 1998. He started as a field-programmable gate array (FPGA) and application-specific integrated circuit (ASIC) design consultant. In 2000, he moved into the ASIC...

Photovoltaic Battery Charge Controller

A charge controller is one of the main components of a solar battery charging system (Fig. 1). Its main function is to fully charge a battery without permitting overcharge or reverse...

“For anything to have wide adoption, Open standards are must”

Electronic design automation (EDA) plays the most important role in design and development of any product. Pravin Madhani, general manager, place and route division of Mentor Graphics, also the founder of...

Post-Silicon Testing

Considering that every chip in the world and every transistor on the chip are tested, just imagine the amount of time and cost involved in testing millions of chips with billions...