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

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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.

V10 Vo + Q+Vcc 8-Vcc 9+ 5 10-11 02

V +) + Vcc - Vcc R -OV R

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Related Book For  book-img-for-question

Schaum S Outline Of Electric Circuits

ISBN: 9781260011968

7th Edition

Authors: Mahmood Nahvi, Joseph Edminister

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