POWER SUPPLY UNIT

摘要

PROBLEM TO BE SOLVED: To solve the problem that a switching power module is mainly mounted on a substrate serving as a mother board and commands most of the area of the substrate. SOLUTION: This power supply unit is disposed with the substrate 2 serving as the mother board on the switching power module 1 and is constituted so that a discrete electronic part 3 may be mounted without being influenced by the switching power module 1. With this constitution, the electronic part can be mounted on the substrate with high efficiency and downsized for easy handling. COPYRIGHT: (C)2005,JPO&NCIPI