| 摘要 |
PROBLEM TO BE SOLVED: To provide a power supply device in which electric power efficiency can be enhanced, when an output load is low, for example, a system standby mode. SOLUTION: The power supply device 10 serially connects two or more power supply circuits (non-insulated power supply circuit 11, insulated power supply circuit 12). Each electric power supply circuit (non-insulated power supply circuit 11, insulated power supply circuit 12) has an output voltage set lower than the input voltage. COPYRIGHT: (C)2007,JPO&INPIT
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