Technical Features

September 2013
Moving from Electromechanical to Solid-State in Relays and Circuit Breakers
Courtsey Eaton Corporation

Click image to enlarge

Figure 1: Contact wear in an electromechanical relay

As a mature technology, electromechanical relays and circuit breakers are well established, however they continue to suffer from some inherent weaknesses. Moving to solid-state technology can address these but introduces its own challenges. So, what is the right solution? In the movies, whenever the
. . . Read More
Date:
10/31/2019
What is the Smart Grid, really?

Click image to enlarge

Figure 1: Escalating installations of renewable energy sources are likely to be distributed far and wide

The Smart Grid - a changing landscape of supply, demand and storage Definitions of the "Smart Grid" range from highly technical descriptions to purely commercial interpretations, but whichever one
. . . Read More
Date:
09/26/2013
Understanding power factor and the need for power factor correction

Click image to enlarge

Figure 1: An ideal waveform with a power factor of 0

Until the era of switching power supplies, Power Factor - and power factor correction - wasn't a big concern for all but a handful of electrical engineers working with large electric motors, and other,
. . . Read More
Date:
09/24/2013
Selecting the Right MOSFET for Power Factor Correction Applications

Click image to enlarge

Figure 1: PFC schematic

Power factor is the ratio of the real power (P = Watts) to the apparent power (VA = Volt Ampere); the goal is to achieve a power factor as close to 1 as possible. A load with a lower power factor
. . . Read More
Date:
09/19/2013

Online Design for FPGA Power

Click image to enlarge

Figure 1: High-level schematic showing the power tree for an Altera Stratix III FPGA.

The Internet has become a key resource used by engineers to obtain information. In spite of the wealth of data, the assimilation and practical application of information remains a challenge. Cloud
. . . Read More
Date:
09/05/2013