Digital dial

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This circuit is the up down circuit of the digital counter which used a rotary encoder. Two sliding switches are incorporated into the rotary encoder. The timing that each switch closes is shifted. Because this circuit detects the timing that each switch closes, it judges the clockwise(CW) or the counterclockwise(CCW) of the switch, and adds or subtracts a counter. It is possible to do application when turning a dial and setting a digital value. The use example : Adjusting in the time of the clock Setting of the value of the equipment Frequency setting of the transceiver and so on

Circuit drawing Pattern drawing Circuit explanation