{"id":6356,"date":"2026-11-03T06:48:31","date_gmt":"2026-11-03T06:48:31","guid":{"rendered":"https:\/\/www.hiitiosemi.com\/?p=6356"},"modified":"2026-11-03T06:48:34","modified_gmt":"2026-11-03T06:48:34","slug":"power-modules-for-dual-active-bridge-dc-dc-converters","status":"publish","type":"post","link":"https:\/\/www.hiitiosemi.com\/es\/blog\/power-modules-for-dual-active-bridge-dc-dc-converters\/","title":{"rendered":"Power Modules for Dual Active Bridge DC-DC Converters"},"content":{"rendered":"

Dual active bridge (DAB) converters have become a standard choice wherever a design needs galvanic isolation and power flow in both directions: DC fast chargers, battery energy storage, and solid-state transformer stages. The topology is simple on paper, but its efficiency, switching frequency, and thermal margin are set almost entirely by the power modules in the two bridges.<\/p>\n\n\n\n

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At HIITIO, we design and manufacture IGBT modules, SiC modules and gate drivers for these applications. This article walks through how a DAB loads its modules, what published reference designs show, and how to match a module and driver to your own converter.<\/p>\n\n\n\n

How a DAB Converter Loads Its Power Modules<\/h2>\n\n\n\n

A DAB connects two full bridges through a high-frequency transformer and a series inductance, often supplied by the transformer\u2019s leakage inductance. According to Texas Instruments\u2019 application note on the topology<\/a>, the direction and amount of power are set by the phase angle between the two bridges, and one bridge\u2019s lagging current helps achieve zero-voltage turn-on (ZVS). That gives the modules three practical requirements:<\/p>\n\n\n\n