| 摘要 |
An over power supply voltage cut-off circuit includes: a power supply voltage supplying path switching part for switching a supplying path of the power supply voltage provided to the power consumption type of load from the power supply voltage generating part in accordance with a driving control signal; a voltage sensing part for sensing an abnormal voltage, in case where a level of the power supply voltage generated from the power supply voltage generating part is over a predetermined set voltage level; and a control signal converting part for converting the driving control signal supplied to the power supply voltage supplying path switching part from the voltage sensing part into a transmission cut-off control signal in accordance with a sensing signal outputted from the voltage sensing part.
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