Universo Eletrico (Eletric Universe)

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  New InnoSwitch4-CZ Design Shows How Small a 72 W Charger Can Be The size-shrinking capability of integrated gallium nitride (GaN) technology applies not just to cell phone and laptop chargers. Power tools, eBikes, lawnmowers and many industrial applications can all benefit from easy-to-carry adapters without hulking metal heatsinks wasting away precious energy. A new Design Example Report ( DER-931 ) demonstrates a power supply that drastically reduces the number and size of components used. It delivers a 72 W, 12 V output while using a circuit board that is about half the size of a credit card. The 2.76 x 1.18 x 0.79 inch design combines the InnoSwitch4-CZ zero-voltage-switching flyback switcher IC, with its companion active-clamping ClampZero IC, and the MinE-CAP bulk capacitor miniaturization IC. It consumes less than 45 mW no-load power and easily meets DOE6 and CoC v5...