Input-interruption timer

Details Input-interruption timer Input-interruption timer

H - Electricity

03

K

328/189

H03K 17/56 (2006.01) H03K 3/027 (2006.01) H03K 5/13 (2006.01) H03K 17/28 (2006.01)

Patent

CA 1072188

TITLE OF THE INVENTION. Input-Interruption Timer ABSTRACT OF THE DISCLOSURE: The invention discloses an electronic input- interruption timer for use with an electrical appliance such as a washing machine, a fan , a refrigerator and so on. The timer comprises an integrator consisting of an input resistor and a capacitor, a switching element, a MOS field affect transistor, a discharge resistor, and a switching circuit operable in response to the magnitude of the drain current of the field-effect transistor; the field-transistor, the switching element , the capacitor and the discharge resistor being embedded or potted in a molded plastic insulation. Since the capacitor and the discharge resistor are completely air- and water-tightly sealed, the highly reliable and dependable operation may be ensured even when used with a water-handling appliance such as a washing machine. - 1 -

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