Logic Status Probe Circuit

Published:2011/5/21 1:50:00 Author:Robert | Keyword: Logic Status, Probe | From:SeekIC

This circuit is used in the application cases where has low repeating frequency and also has very narrow single pulses. For example, the computer's interface and logic control system's signals. The monostable circuit change the pulses as norrow as 50ns to be extended, so that the LED's lighting or not can be seen clearly. If the under-test circuit's stable status is low voltage level, and K1 is put at low position, the CR1 would light. If it is put at high position and the circuit's stable status is high voltage level, the CR2 would light. The other two LED means the pulse signals in the stable signals.



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