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Free EV Engineering Webinar:

Simplifying Automotive Emergency Power Supply Architecture

Presented by:

  • Peter Vaughan, Director of Business Development - Automotive, Power Integrations

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Oct 20, 2021, 3:15 pm EDT

In this presentation, we will review the low voltage power architecture used in automotive traction inverters. This power source drives control electronics and provides gate driver power for the main traction IGBTs/MOSFETs. It must also provide redundancy to meet ASIL requirements. This last requirement represents a special challenge as it means the Emergency Power Supply (EPS) must operate from low voltage and high voltage sources requiring it to operate from 30 V to more than 400 V or 800 V (depending on system voltage).

The solution presented is scalable, supporting both for 400 V and 800 V systems and significantly reduces part count and PCB area by eliminating additional DC/DC conversion stages. The solution delivers very high efficiency and does not require heatsinks or optocouplers.


Now available to watch on-demand: Register for this webinar to watch a recording of the presentation and audience Q&A, and download the presentation slides.


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