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A circuit is shown to the right. a. Is this an example of positive feedback or negative feedback? b. If the circuit is an amplifier, what is the gai and is it inverting or noninverting? If the circu is a comparator calculate the threshold voltage.

A circuit is shown to the right. a. Is this an example of positive feedback or negative feedback? b. If the circuit is an amplifier, what is the gai and is it inverting or noninverting? If the circu is a comparator calculate the threshold voltage.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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a). b). if IKUL Vin between sine |KH|3 feedback element so ive feedback amplifies. (sk connected terminal of op amplifier) 5 кл Resistance is its Negative skr 120 租 -120 negative from the cismit √²+ = OV using virtual property N_ = V₂ = OV Now apply Nodal analysis at v V-- Vin V_ - Vo 5k Vo Vin + Vo= (-SK) Vo = -5 Vin Gain Gain is Negative so its inverting amplifies. Vo op-amplifier is omparaton if Vo = +1²V it vo the resold voltages = -12 V_ are = 0 Vin - 12 Vin= -1/² = -2.4 V Vin=-(- 1²) = 2.40 -2.4V and 2.4v
Transcribed Image Text:a). b). if IKUL Vin between sine |KH|3 feedback element so ive feedback amplifies. (sk connected terminal of op amplifier) 5 кл Resistance is its Negative skr 120 租 -120 negative from the cismit √²+ = OV using virtual property N_ = V₂ = OV Now apply Nodal analysis at v V-- Vin V_ - Vo 5k Vo Vin + Vo= (-SK) Vo = -5 Vin Gain Gain is Negative so its inverting amplifies. Vo op-amplifier is omparaton if Vo = +1²V it vo the resold voltages = -12 V_ are = 0 Vin - 12 Vin= -1/² = -2.4 V Vin=-(- 1²) = 2.40 -2.4V and 2.4v
A circuit is shown to the right. a. Is this an example of positive feedback or negative feedback? b. If the circuit is an amplifier, what is the gain and is it inverting or noninverting? If the circuit is a comparator calculate the threshold voltage. R2 5 ΚΩ mu + R1 3 ΚΩ ww OA V_in sine 1 kHz +12V -12V V out
Transcribed Image Text:A circuit is shown to the right. a. Is this an example of positive feedback or negative feedback? b. If the circuit is an amplifier, what is the gain and is it inverting or noninverting? If the circuit is a comparator calculate the threshold voltage. R2 5 ΚΩ mu + R1 3 ΚΩ ww OA V_in sine 1 kHz +12V -12V V out
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