| 摘要 |
PROBLEM TO BE SOLVED: To provide an input protection device capable of detecting various abnormal inputs by constantly monitoring inputs of an electronic apparatus, promptly taking a preventive action, and eliminating need for drive power. SOLUTION: This input protection device includes a voltage detection unit which is located in a flux generated by a permanent magnet and includes a movable coil slanted by torque generated by running current, a resistor which is connected with the voltage detection unit in series and floats current proportional to input voltage in the movable coil, an insulation body continuously formed, a plate-shaped member constructed from a resistance body and a conductor, and a variable resistance part which is provided with a movable contactor which moves synchronously with slant motion of the movable coil in contact with the plate-shaped member. COPYRIGHT: (C)2008,JPO&INPIT
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