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VOLTAGE TYPE STARTER ELECTRONIC RELAY FOR SINGLE PHASE INDUCTION MOTOR, INCLUDING TIMER CIRCUIT UNIT FOR PREVENTING DAMAGES OF STARTER COIL CAUSED BY BREAKDOWN OF STARTER CONDENSER
VOLTAGE TYPE STARTER ELECTRONIC RELAY FOR SINGLE PHASE INDUCTION MOTOR, INCLUDING TIMER CIRCUIT UNIT FOR PREVENTING DAMAGES OF STARTER COIL CAUSED BY BREAKDOWN OF STARTER CONDENSER
PURPOSE: A voltage type starter electronic relay is provided to prevent a starter coil from being damaged from overheat of a triac or breakdown of a starter condense by installing a pulse generating unit, resistance, a condenser and a NOT gate. CONSTITUTION: A voltage type starter electronic relay(300) comprises a power unit(310) for supplying power to circuit elements of a starter relay when AC power of a single phase induction motor is turned on; an input signal unit(322) constituted by a resistance, a condenser, and a zener diode, and arranged between a starter coil and a ground; a hysteresis unit(324) constituted by a NOT gate; a timer circuit unit(350) serving as an operating time integrating unit; and a pulse generating unit(332). The output of the timer circuit unit is applied to the input unit of the NOT gate of the pulse generating unit.
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