| 摘要 |
A semiconductor device has a first and a second electrode interconnected with circuit means to form an electric circuit operable to control functions in an electric apparatus by changes in the conductivity of the first-second electrode current path. The device control electrode, which exhibits a high-input impedance, is coupled by a capacitor to a source cause potential. The capacitor is additionally connected to a source of control voltage adapted to change the charge state of the capacitor. A discharge path is provided for the capacitor and includes a switch to reset the voltage at the control electrode of the device to control the device first-second electrode current path conductivity such that the controlled function is adjusted to a predetermined condition.
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