摘要 |
<p>The circuit tests analogue signals to find whether their amplitude exceeds or does not reach specified thresholds. It delivers an output signal when the analogue signal level is above or below the specified threshold. Each differential amplifier (V1, V2) is connected as voltage repeater, and its output is connected to a series circuit consisting of a diode (D1, D2) and a resistor (R5, R6). Setting inputs of bistable flip-flops (FF1, FF2, FF3) are connected to the resistors (R5, R6). The logic element is advance of the flip-flops is an OR gate.</p> |