Technical Features

August 2022
Driving Wide Bandgap Devices

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­In power electronics, semiconductor transistors with a wide bandgap, such as silicon carbide or gallium nitride, are becoming increasingly popular. Higher switching speeds promise higher efficiency and higher power densities. Two reference designs from Würth Elektronik show how an isolated 6 W auxiliary power suppl
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Date:
10/01/2022
Using Bidirectional Programmable DC Power Supplies for Battery Testing

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Figure 1. The placement polarity checker and the safety contactor

In today’s fast-paced world the need to create quicker, more mobile mechanical devices is steadily increasing. One primary method for doing this is to replace traditional gas powered or plugged-in devices with battery power. Batteries have become smaller and increasingly efficient as a result. In order to ke
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Date:
08/01/2022

Power Supplies for EV Charging Stations

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Figure 1: Ac charging diagram

­EVs can now achieve similar mileage as gas-powered vehicles, but it still takes more time to charge an EV than to refuel a gas vehicle. Charge time is approximately equal to the amount of energy delivered to the battery divided by the charging power; therefore, it is desirable to use as much power as possible to
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Date:
08/01/2022
The Role of Connectivity in EV Charging

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­We are all familiar with the phrase work smarter, not harder. Well, the EV charging infrastructure needs to be hardworking and intelligent to meet the needs of vehicle users and the communities impacted by them. The hard work is associated with distributing enormous quantities of energy, as the number of EVs on
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Date:
08/01/2022
Driving Advanced Performance with Higher Reliability

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Figure 1: Global EV passenger car sales could make up roughly half of all cars sold by 2030

­The rising popularity of EVs in recent times is not merely due to consumer demand, but because of the collective effort by the governments across the world to implement more sustainable and safer ways of mobility. In 2021, we saw an indication of the rapid adoption of electric vehicles with the number of EV (B
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Date:
08/01/2022
Passive Components Enable V2X and 48V Automotive Systems Vital to Addressing Evolving Safety and Fuel Efficiency Demands

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Figure 1: Standard DSRC V2X infrastructure

­Automotive safety has always been a top priority for both consumers and regulatory bodies, but the growing availability of advanced driver assistance systems (ADAS) and the increasing viability of driverless technologies requires innovative approaches to this age-old requirement. Similarly, while fuel efficiency ha
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Date:
08/01/2022
How to Increase High-Power EV Battery Charging using Surface Mount Power Devices

How to Increase High-Power EV Battery Charging using Surface Mount Power Devices

­End users expect new EV designs to minimize vehicle idle time, especially for long-distance driving. EV automotive designers need to increase charger power output, power density, and efficiency to achieve the fast-charging end-users expect. Single-unit, charger designs currently range from 7 kW to 30 kW. The co
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Date:
08/01/2022
Compact Filter Saves Space in Three-Phase Power Applications

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Figures 1a: Filtering normal-mode

­EMI-RFI filters are needed to attenuate common-mode and differential-mode EMI (or noise). Although simple in principle, they are not easy to design and often require specialist help. Moreover, in three-phase power applications, adequate filtering can occupy a large volume. An integrated three-phase filter ca
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Date:
08/01/2022
A Battery Designed for Energy Storage

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Figure 1: China holds global share of lithium battery material refining and processing (Source: Avicenne Energy 2022 Report)

­In 2021, 20.1% of the electricity generated in the United States came from renewable sources, and so did 80% of generation capacity additions.  Energy storage is an essential component of a renewable-powered grid infrastructure.  To make the grid more resilient, lower carbon emissions, and redu
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Date:
08/01/2022
Patient Health Through System Health

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Figure 1: Preventative maintenance on critical medical equipment such as MRI scanners minimizes unplanned downtime and improves patient healthcare

­In the world of manufacturing, a critical system failure creates real-world impacts such as lost productivity, as well as cost for repairs and service to resolve the problem. In the field of medical equipment, system downtime not only incurs costs but also causes delays to patient care that can directly impact pa
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Date:
08/01/2022
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