Abstract: This paper investigates the application of the operational current amplifier (OCA) in the design of quadrature sinusoidal oscillators. There are numerous quadrature sinusoidal oscillators ...

STMicroelectronics has introduced the STNRG599A and STNRG599B controllers for resonant-converter topologies with innovative phase-shift control (PSC) that boosts ... STMicroelectronics' STGAP2SA and ...

Yamaha’s C-5000/M-5000 amplifier pairing is as polished and well-engineered as they come. It is a pleasure to listen to and use Why you can trust What Hi-Fi? Our expert team reviews products in ...

MONTEREY – Former Chicago Mayor Rahm Emanuel, who was Barack Obama’s chief of staff, and Karl Rove, who was a senior adviser to George W. Bush and deputy chief of staff of the 43rd president, will be ...

The Frick Estate Lectures, a nonprofit program dedicated to lifelong learning in the liberal arts, is returning this fall to the Nassau County Museum of Art with more than 30 courses in literature, ...

A segregationist Mississippi law forbids Negro state colleges to hire white teachers. Last week Moses Hadas, the famed Columbia University classicist, slipped around the law without ever leaving ...

An instrumentation amplifier (INA) built using three operational amplifiers (op amps) can provide performance advantages in terms of high input impedance, low output impedance, easily adjustable gain, ...

Getting students engaged in a large lecture hall can be a challenge, and it’s almost impossible to create an active learning space. Previous research highlights a connection between where a student ...

Fossil fuels, including coal, oil, and natural gas, have been dominant sources of energy for the past 150 years, supplanting whale oil in the late 19th century as the top energy industry. Their ...