| 摘要 |
An apparatus having a radiating noise damping means for controlling power appliances is disclosed, in which signal confusion disorders caused to adjacent circuits by an overlapping of the electromagnetic waves from peripheral devices such as a memory and a crystal oscillating circuit are prevented. A crystal oscillator CT1 and a level resistor R1 are connected in parallel to external terminals X1 and X2 of the microprocessor 1. Further, a damping resistor R2 is connected in series with the crystal oscillator CT1 and the level resistor R1, thereby damping the oscillating signal level, and alleviating the radiating noise.
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