Active fly-back clamp shrinks GaN USC-C chargers

Power integrations has moved to active clamp fly-back conversion, zero voltage switching and a GaN transistor to shrink the size of its ac-dc USB-C charger circuits. The ICs implementing the circuit are InnoSwitch4-CZ and ClampZero, and consumer brand Anker announced products using them yesterday: 30, 45 and 65W USB-C Nano II chargers (photo). The active clamp, ...

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