Electronic Products & Technology

GaN-based ICs combine ac-dc & dc-dc stages into a single power converter

EP&T Magazine   

Electronics Power Supply / Management Semiconductors ac/dc dc-dc ICs power power supply semiconductor

POWER INTEGRATIONS InnoMux-2 family of single-stage, independently regulated multi-output offline power-supply ICs consolidate ac-dc and downstream dc-dc conversion stages into a single chip, providing up to three independently regulated outputs for use in white goods, industrial systems, displays and other applications requiring multiple voltages. Elimination of separate dc-dc stages slashes component count, reduces pcb footprint and increases efficiency by as much as 10 percentage points compared to traditional two-stage architectures. Efficiency is aided by the ICs’ 750V PowiGaN gallium-nitride transistors, zero-voltage switching (without an active clamp) and synchronous rectification.

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