| 摘要 |
In a switch (mechanical switch) in a drive circuit, an electric potential according to the temperature of a driver IC is given to a gate electrode from a switch control circuit. During normal operation, a lever is in contact with terminals, and thus a terminal connected to an input terminal to which power is supplied from outside and a terminal connected to the drive circuit are connected to each other. On the other hand, when the electric potential given to the gate electrode is equal to or higher than a predetermined value, the lever is deformed due to electrostatic forces between the lever and the gate electrode and separates from the terminal, and thus the connection between the terminals is disconnected. The driver IC including the switch and the above-mentioned circuit is constructed as MEMS.
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