| 摘要 |
a microcomputer for controlling drying of clothes washed and a test operation thereof; a power supply unit for supplying power to each of circuit parts; a key input unit for inputting an operation command of the microcomputer; a sensing unit for sensing a signal which detects a malfunction of load to thereby supply the sensed signal to the microcomputer; a load driving unit for driving the load of a heater, a motor, etc. under the control of the microcomputer; a current transformer provided with the sensing unit, for sensing an amount of load of the load driving unit; a transistor provided with a secondary side of the current transformer, for supplying a current detecting feedback signal to the microcomputer; and a current transformer detecting unit connected to the transistor of the sensing unit to thereby detect whether the current transformer is in an abnormal state and for supplying test power under the control of the microcomputer.
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