Technical Features

September 2018
Integration is What You Need

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Figure 1. WBG and silicon power switch Infineon brands positioning

Introduction Today’s switch-mode power supplies (SMPS) are smaller, more efficient, and lower-cost than ever. The key to their performance is the power switch technologies at their heart – but how should designers choose the right material for this and find the best component to meet their needs? While silicon is the most widely-known constituent of semiconductors, a new group of wide bandgap (WBG) materials is increasingly finding its way into applications. One example is gallium nitride (
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Date:
09/01/2021
The Power and Evolution of GaN - Part 1

Figure 3: LiDAR car

Gallium nitride(GaN)-on-silicon low voltage power devices have enabled many new applications since commercial availability began in 2010. New markets, such as light detection and ranging (LiDAR), envelope tracking, and wireless power, emerged due to the superior switching speed of GaN. These new applications ha
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Date:
09/29/2018

Comm Equip Makers Demand High Power Output & Small Footprint

Figure1. LTM4622(A) Can Be Mounted on the Underside of a PCB

Many communications systems are powered via a 48V backplane. This voltage is normally stepped down to a lower intermediate bus voltage, typically to either 12V, 5V or even lower, in order to power the racks of boards within the system. However, most of the sub-circuits or ICs on these boards are required to op
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Date:
09/29/2018
Forward Error Correction (FEC) – Implementation and Test

Figure 1. Logic “0” to logic “1”, then back to logic “0”

In modern communication systems, information is digitised, coded to logic levels “1” and “0” and often further encoded into complex modulation schemes such as Pulse Amplitude Modulation (PAM) or Quadrature Amplitude Modulation (QAM).  Integrity of the information at the received end can be critical, so
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Date:
09/04/2018
How to Easily Test a DC-DC Converter

Figure 1: DC/DC converter connection.

The power system technologies of modern electronic equipment are facing extreme challenges due to the need for an increase in the power efficiency of the systems, especially devices powered by a battery. The main system block involved in power conversion and delivery is the DC-DC converter, which converts DC po
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Date:
09/04/2018
Considerations When Selecting a Power Supply for Test Equipment

Figure 1: IEC61000 Selection Descriptions

When choosing a power supply, if an engineer had only to consider volts and amps, cooling requirements, size, and regulatory certifications, their job would be easy as there are many available options from which to choose. However, designers of test and measurement equipment must consider other important parameters. El
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Date:
09/04/2018
End of an Era for Silicone Transformer Fluids?
Silicone oil has been used to cool transformers since PCBs were found to be harmful to humans and the environment, but are there better alternatives now? Glancing back to the 1970s, those of us in the power sector can remember when Polychlorinated Biphenyls (PCBs)were the cooling liquid of choice for trans
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Date:
09/04/2018