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Question 70

In a Schmitt trigger inverter circuit, the two trip points are observed to occur at 1.8 and 2.8 V. At what input voltage levels will this device make (a)…

In a Schmitt trigger inverter circuit, the two trip points are observed to occur at 1.8 and 2.8 V. At what input voltage levels will this device make (a) HIGH-to-LOW transition and (b) LOW-to-HIGH transition?
  1. A2.8 V & 1.8 V
  2. B3 V & 2 V
  3. C4 V & 2.2 V
  4. D2.6 V & 1.5 V
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Correct answer: (A) 2.8 V & 1.8 V

Explanation

In a Schmitt trigger inverter, the output goes HIGH to LOW when a rising input crosses the upper trip point, 2.8 V. It goes LOW to HIGH when a falling input crosses the lower trip point, 1.8 V.

From DSSSB TGT Computer Science Practice Set 3

This is question 70 of DSSSB TGT Computer Science Practice Set 3. See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.