| 摘要 |
PROBLEM TO BE SOLVED: To provide a power supply system in which the output voltage value in a feedback means can be prevented from being boosted excessively even when its voltage division ratio is varied. SOLUTION: In the power supply system comprising a means 11 for boosting a voltage supplied from a DC power supply 10 to a predetermined output voltage value before being outputted, and a means 12 for feeding a feedback voltage value Vfb obtained by multiplying the output voltage value Vout from the boosting means 11 by a predetermined voltage division ratio back to the boosting means 11, the boosting means 11 controls the output voltage value Vout based on the feedback voltage value Vfb from the feedback means 12, and the feedback means 12 comprises a resistance division section 20 consisting of a plurality of resistors set to provide a predetermined division ratio of the voltage value by resistance division, and a section 21 for regulating the feedback voltage value Vfb when the division ratio of the voltage value at the resistance division section 20 deviates from the predetermined voltage division ratio. COPYRIGHT: (C)2008,JPO&INPIT
|
