vicorpower.com EU17V1 ©2017 Vicor Corporation. All rights reserved. The Solution The voltage from the 24V bus battery had to be converted down to 4V for the LED drivers in the most efficient way. A non-isolated ZVS Buck regulator was able to handle the wide input voltage swings of the battery (ranged from 12V up to over 30V), and provided high efficiency over a wider input range. The ZVS Buck regulators’ high efficiency when stepping down high voltages to low output voltages are ideal for these types of requirements. The Customer's Challenge A display manufacturer was developing an upgrade to a passenger information system. Space was limited, and the power supply had to be mounted on the same board as the LEDs. Operating at high ambient temperature, with the sun heating up the

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