Operational methods and experiments with operational amplifiers

Introduction ・・・4

1. Inverting amplifier circuit ・・・6
　1.1　Inverting amplifier circuit operation
　1.2　Inverting amplifier circuit experiment

2. Non-inverting amplifier circuit ・・・14
　2.1　Non-inverting amplifier circuit operation
　2.2　Non-inverting amplifier circuit experiment

3. Buffer circuit ・・・21

4. Low-pass filter ・・・26
　4.1　RC Low-pass filter
　4.2　RL Low-pass filter
　4.3　Low-pass filter using an operational amplifier
　4.4　Low-pass filter using
an operational amplifier-2

5. High-pass filter ・・・51
　5.1　RC High-pass filter
　5.2　RL High-pass filter
　5.3　High-pass filter
using an operational amplifier
　5.4　High-pass filter
using an operational amplifier-2

6. Band-Pass Filter ・・・78
　6.1　RLC Band-Pass Filter
　6.2　Band-Pass Filter-1
　6.3　Band-Pass Filter-2
　6.4　Band-Pass Filter-3

7. Oscillation circuit ・・・104
　7.1　Timer IC555
　7.2　Wien bridge Oscillation circuit
　7.3　Using an operational amplifier
as a comparator
　7.4　Square wave generation circuit
　7.5　Triangle wave Oscillation circuit

8. Operation circuit ・・・123
　8.1　Adding circuit
　8.2　Subtracter circuit
　8.3　Integrating circuit
　8.4　Differential circuit

References ・・・133

Introduction
　The operational amplifier is a relatively common element in electronic circuits and has the following applications.
(1) Amplification.
(2) Can be used as an oscillating circuit.
(3) Can be used in filters such as low-pass filters.
(4) Operation circuits for voltage addition, subtraction, integration, differentiation, etc.
(5) Can be used as a buffer circuit (to reduce the influence on the signal source).

The ideal operational amplifier is
・Input impedance is infinite
・Output impedance is zero
・Infinite voltage amplification
・Frequency response from 0 to infinity

In this book, we will use the LM358N, a commonly used single power supply, and explain it through experiments.