Select R1 and R2 so chat v0 is equal to 7.5vs

Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Select R1 and R2 so chat v0 is equal to 7.5vs

The image depicts an electrical circuit diagram of a non-inverting amplifier using an operational amplifier (op-amp). Here’s a detailed explanation of the components and their configuration:

1. **Operational Amplifier (Op-Amp):** The triangle symbol represents an op-amp with a non-inverting input (+) and an inverting input (-). The output is labeled as \( v_o \) at point \( a \) and the other side is grounded at point \( b \).

2. **Input Voltage Source (\( v_s \)):** The circle on the left with a plus and minus sign represents the input voltage source. The positive terminal is connected to the non-inverting input of the op-amp.

3. **Feedback Loop:** There is a feedback loop from the output (\( v_o \)) to the inverting input of the op-amp. This loop includes two resistors:
   - **Resistor \( R_2 \):** Connected directly from the output \( a \) to the inverting input.
   - **Resistor \( R_1 \):** Connected from the inverting input to the ground.

4. **Ground:** The ground symbol is indicated at the bottom of resistor \( R_1 \), providing a reference point for the circuit.

This configuration is typical for a non-inverting amplifier, which amplifies the input voltage while maintaining the same polarity at the output. The gain of the amplifier can be calculated using the formula:

\[ \text{Gain} = 1 + \frac{R_2}{R_1} \]

This setup is widely used in electronics to increase signal strength without altering the input signal's polarity.
Transcribed Image Text:The image depicts an electrical circuit diagram of a non-inverting amplifier using an operational amplifier (op-amp). Here’s a detailed explanation of the components and their configuration: 1. **Operational Amplifier (Op-Amp):** The triangle symbol represents an op-amp with a non-inverting input (+) and an inverting input (-). The output is labeled as \( v_o \) at point \( a \) and the other side is grounded at point \( b \). 2. **Input Voltage Source (\( v_s \)):** The circle on the left with a plus and minus sign represents the input voltage source. The positive terminal is connected to the non-inverting input of the op-amp. 3. **Feedback Loop:** There is a feedback loop from the output (\( v_o \)) to the inverting input of the op-amp. This loop includes two resistors: - **Resistor \( R_2 \):** Connected directly from the output \( a \) to the inverting input. - **Resistor \( R_1 \):** Connected from the inverting input to the ground. 4. **Ground:** The ground symbol is indicated at the bottom of resistor \( R_1 \), providing a reference point for the circuit. This configuration is typical for a non-inverting amplifier, which amplifies the input voltage while maintaining the same polarity at the output. The gain of the amplifier can be calculated using the formula: \[ \text{Gain} = 1 + \frac{R_2}{R_1} \] This setup is widely used in electronics to increase signal strength without altering the input signal's polarity.
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