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首页> 外文会议>Annual IEEE Applied Power Electronics Conference and Exposition >System Design of a 3D Integrated Non-isolated Point of Load Converter
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System Design of a 3D Integrated Non-isolated Point of Load Converter

机译：3D集成非隔离点的系统设计负载转换器

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Thermal issues in the design of high-power and small-size non-isolated Point of Load (POL) converters have been significant and are becoming more so. If a heat sink is dispensed with, then a large area of multi-layer PCB material with significant amounts of copper is required for necessary cooling. A high-rate cooling fan is also necessary. So what at first seems like a small and elegant converter becomes bulky and challenging to position in the overall system when its thermal management is taken into account. This work finds a solution to these problems and investigates the use of Low-Temperature Co-fired Ceramic (LTCC) for integrating the inductor with the active stage. A buck POL is used to demonstrate these methodologies. The end result is a POL converter that can achieve full 20A output current with no need for an external heat sink and no need for a cooling fan while providing a large step-down of 5V to 1.2V. High light-load efficiency of 92.2% is achieved and a high power density of 156W/in{sup}3 including all the necessary thermal management, in natural convection condition, has been demonstrated.
机译：高功率和小型负载（POL）转换器设计中的热问题是显着的并且变得越来越大。如果分配散热器，则需要需要大量的多层PCB材料，需要进行大量铜。也需要高速冷却风扇。因此，当考虑到其热管理时，最初似乎是一个小而优雅的转换器变得庞大，优雅的转换器在整个系统中的位置挑战。这项工作找到了解决这些问题的解决方案，并调查了使用低温共用陶瓷（LTCC）来与活动级集成电感器。 Buck Pol用于展示这些方法。最终结果是POL转换器，可以实现完整的20A输出电流，无需外部散热器，不需要冷却风扇，同时提供5V至1.2V的大降压。已经证明，实现了92.2％的高载效率为92.2％，并且在自然对流条件下，包括所有必要的热管理的高功率密度为156W / in {sup} 3。

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