High-Ratio Heat Sink Replaces Bonded-Fin Solution CHALLENGE Methode was approached to nd a replacement for a bonded-n heat sink prototype that was too large, too heavy and too expensive. SOLUTION By eliminating the need for a labor-intensive bonded-n heat sink and reducing the overall size, we met not only the customer's thermal requirements, but also their weight and target price expectations. STORY A major UPS manufacturer faced a dilemma while developing a battery- backup system for wind-turbine power generators. The UPS system used a prototype bonded-n heat sink to meet their limited volume and low thermal resistance needs. However, the prototype was too large, too heavy and too expensive.Methode performed a thermal analysis—using the customer's design, power component layout, key

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