Timing control circuit diagram

Published:2011/10/18 21:25:00 Author:Ecco | Keyword: Timing control | From:SeekIC

The timing control circuit is key to the design for responder, it should complete the following three functions: ① The host pulls the controlling switch to start position, then the speaker emits sound, the answer circuit and timing circuit will be in normal working condition. ② When the players press the answer key, speaker works, then the answer circuit and timing circuit stop working. ③ When the set answer time is up, no answer in time, the speaker also emits sound, then the answer circuit and timing circuit stop working.



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