| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power supply device that can accurately control and predict the time since one supply voltage reaches a desired voltage until other supply voltages reach the desired voltage in supplying a plurality of different supply voltages. <P>SOLUTION: When the power supply device 1 receives power-on instructions, a voltage control unit 11 raises a supply voltage V2 to a voltage VA 1, and also a voltage control unit 24 raises a supply voltage V3 to a reference voltage VB_STB which is lower than a reference voltage VB1. When the supply voltage V2 reaches the voltage VA1, a trigger signal TRG is generated and the voltage control unit 24 raises the supply voltage V3 from the reference voltage VB_STB to the reference voltage VB1. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
