Transportation

Current
Silicon Carbide Modules Unlock Higher Power Density in Motor Drives

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Figure 1: The system block diagram (left) showing three main components: the two converter modules, each with a gate driver, and the controller. The power modules mounted on the cold plate (A), and then in the power core with gate drivers (B), are also shown outside the dual inverter enclosure (C). Handles and feet are provided for portability, (D) shows the 204 mm x 267.5 mm cross section

The traction drive is where nearly all of an electric vehicle’s (EV’s) energy is put to use. The drive system must, therefore, perform with the highest possible efficiency while occupying the smallest possible space with the lowest weight — all to maximize the EV range. With the use of dual drives to enhance tr
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Date:
12/01/2021
Transporting You Into the New Year
We stand on the precipice of one of the greatest gauntlets all year (and into the next) with two intertwined topics for December and January – “Transportation” and “EV + Charging Infrastructure + Hybrid Vehicles,” respectively. But before we dive into this month’s focus, I wanted to personally thank ou
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Date:
12/01/2021
Transportation and Electrification
It has been a challenging and often frustrating year for us all and hopefully next year will give us a fresh start, or at least put us on the path to one. The chip shortage has persisted longer than most analysts thought and it may now be the middle of next year before the fabs have caught up with demand. The sh
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Date:
12/01/2021
EV Wireless BMS: Your Questions Answered
With Strategy Analytics estimating 36 million EVs on the road by 2026, wireless BMS offer promising ways to make vehicles more efficient and reliable – features that appeal to both original equipment manufacturers and consumers. For consumers, wireless BMS could potentially mean lower EV costs, along with be
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Date:
12/01/2021
Charging Electric Commercial Vehicles

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Figure 1. Modern bus depot with charging infrastructure

With the electrification of heavy-duty or commercial vehicles, charging larger batteries than the ones in electric passenger cars becomes necessary. As time is money especially in logistics, either assigning idle times for charging or increasing charging power are preferred options. This leads to three different ch
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Date:
12/01/2021
Automotive Audio Bus and Ethernet in Automotive Applications

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Figure 1. Traditional in-car cabling for audio systems

The number of electronic systems in cars has increased in recent years, reaching higher levels of complexity with the adoption of new technologies for infotainment and advanced driver-assistance systems (cameras, radar, lidar, etc.), along with multiple sensors for many different purposes (stability, speed, ac
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Date:
12/01/2021
 The Automotive Electronics Bust Was Predictable
As I write this, we are locked in the “bust” part of the boom-bust hysteretic cycle that plagues the electronics component industry. Since I began working in the semiconductor industry in the mid-1980s, I’ve seen these swings occur randomly from rail to rail. The causes stem from industry attitudes toward pr
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Date:
12/01/2021
Empowering Next-Gen EV Fast Charging with Advanced Electrical Protection

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Figure 1: EV charging systems are migrating rapidly in the direction of DC-based 50kW to 350kW power solutions

Now that the latest Electric Vehicles (EVs) are exhibiting operational ranges satisfactory to the general public, the attention has shifted to battery charging times. These EVs are using the latest in wide-bandgap semiconductor solutions and power topologies, with system voltages often well over several hundred vo
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Date:
12/01/2021