Repeat Problem 5.58 for the circuit shown in Fig. 5-63(a) with R₁ = 2R₂. Assume saturation levels of ±15 V. Given v₁(t) = 10(sin 20πt + sin 30πt) and v₂(0) = l5 V, sketch the output voltage v₂(t). The circuit is called a noninverting Schmitt trigger.

Data from Problem 5.58

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.

Transcribed Image Text:

2₁ R₁ + Vcc - Vcc ww R₂ OV₂