White Papers

1.Embedded Software Architecture

For long time it has been considered that, a key requirement to reduce time-to-market for SoC (System-On-Chip) devices is to start software development early in the design process...

2.Virtualization and Embedded System Software Architectures

On a previous document [1], all the benefits given by the Embedded System Software Architectures (ESSA) were already highlighted. Now, we will discuss how the use of an ESSA in a virtual environment can speed up the development of the products and reduce costs...

[1] Embedded Software Architecture.

3.Are modular ups systems really more reliable?

UPSs are designed to protect critical loads from electrical disturbances that commonly occur in mains supplies: Voltage variations (overvoltages, undervoltages, surges), slow or transient frequency variations, power outages and micro power outages (blackouts)...

4.Harmonics: Causes, effects and minimization

In recent years, with the increasing use of power electronics, the quality of electricity supply, together with energy efficiency, has become a key issue, and company energy responsibles... 

5.Automated hardware verification systems

One of the most important, if not the most important, goals of a new product is to be the best on the market, especially as far as the quality and features it offers are concerned. A good standard of quality is not only achieved by the R&D department creating a good design...

6.DC Systems

DC power supplies are an essential part of many industrial applications such as rail systems, telecommunications, energy distribution, energy production plants, etc...

7.Embedded System Software Architectures In Multiprocessor Systems

For some years now, due to the increase in the level of integration of the devices and the decrease in their cost, it has been possible to see a proliferation of embedded electronic systems with more than one processor. This has meant distributing the intelligence over one or several electronic boards...

9.The "DROOP" method beyond simply paralleling UPS systems

This white paper presents the fundamental methods for controlling uninterruptible power supplies (UPS) connected in parallel, especially the evolution of methods based on droop control. UPSs protect equipment against power supply problems such as temporary disconnections, micro-cuts, voltage surges and frequency variations ...

10.Three-level NPC inverter used in UPS

The requirements in reliability and capacity are increasing in various industrial applications. Such as the medium voltage uninterruptible power system (UPS) which is widely used for high speed elevators, high-power electric drives and distributed generation systems as an interface between the utility grid and distributed power sources...