Статьи - 3

Bill Schweber

I’ve always been interested in simple-looking components which solve well-defined, clear, bounded problems. One carpentry example I encountered and used many years ago is formally known as a hanger bolt, Figure 1. One end has a wood-screw ...

Robert Keim

Navigating the burgeoning cities of the early twentieth century would have been a very different experience without the electromechanical railway and elevator systems designed by Frank Sprague. The basic layout of a modern metropolis a core of ...

Cabe Atwell

The high-efficiency switching power supply has become a staple ingredient in many of today’s electronic systems. What is its origins and how has it evolved over the decades? Switched-mode power supplies are found in electronics all around us. ...

Stephen Woodward

A generally accepted fact about relays and solenoids is that after they’re driven into the actuated state, only half as much coil voltage and therefore only one fourth as much coil power, are required to reliably sustain it. Consequently, any ...

Anthony Serquiña Jhun Rennel Sanchez

Abstract This article details a method of generating dual-output voltage rails that provide both the positive and negative rails for a device power supply (DPS) while requiring only one bidirectional power supply. The traditional method of powering ...

Frederik Dostal

Abstract This article will explain the inherent limitations of the boost topology and how to overcome them. When designing and evaluating boost converters, sometimes the intended output voltage is not realized. Instead, it has a lower value than ...

Frederik Dostal

Figure 1 shows the architecture of a conventional isolated flyback converter. These converters can be found frequently in power classes of up to about 60 W. A supply voltage is converted to an output voltage with the help of a primary-side switch ...

Chau Tran Moshe Gerstenhaber

Modern measurement systems often operate with single 5-V power supplies, yet their input signals may have large common-mode voltages that exceed the supply by tens or hundreds of volts. Also, unless the converter is driven differentially, the noise ...