The op amp of Fig 5 30 compares the input signal v 1 with an independent reference level v 0 , forcing the op amp into high saturation (if v 1 v 0 ) or low saturation (if v 1 0) Let the reference level be set up by the output of the op amp through the voltage divider R 1 (R 1 R 2 ) as shown in Fig ...

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The op amp of Fig. 5-30 compares the input signal v 1 with an independent reference level

Question:

The op amp of Fig. 5-30 compares the input signal v₁ with an independent reference level v₀, forcing the op amp into high saturation (if v₁ > v₀) or low saturation (if v₁ 0). Let the reference level be set up by the output of the op amp through the voltage divider R₁/(R₁ + R₂) as shown in Fig. 5-62(a) with R₁ = 2R₂. Assume saturation levels of ±15. Given v₁(t) = 10(sin 20πt + sin 30πt) and v₂(0) = 15 V, sketch the output voltage v₂(t). The circuit is called an inverting Schmitt trigger.