| 摘要 |
PROBLEM TO BE SOLVED: To prevent generation of the output overvoltage or the like of a voltage regulator, and shutdown of an electronic system due to increase in the impedance, accompanying defective soldering or the like of the feedback line of the voltage regulator. SOLUTION: An output distribution power source system 30, which supplies adjusting voltage to the electronic system 35, is provided with the voltage regulator which inputs an adjusting output voltage signal via the feedback line 32, and adjusts the output voltage, and a feedback protecting system 50 which detects increase in the impedance of the feedback signal. The feedback protecting system 50 applies a voltage to the feedback line 32 via a pull-up resistor 46 from a voltage generator 54, and the increase in impedance of the feedback line 32 is monitored by a feedback monitor 56. COPYRIGHT: (C)2006,JPO&NCIPI
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