电气工程及其自动化专业英语

向青

目录

  • 1 Basic Concepts of Electric Circuits
    • 1.1 Introduction
    • 1.2 Voltage and Current
    • 1.3 Power and Energy
  • 2 Basic Laws of Electric Circuit
    • 2.1 Ohm's Law
    • 2.2 Kirchhoff's Laws
    • 2.3 Series Resistors and Voltage Division
    • 2.4 Parallel Resistors and Current Division
    • 2.5 Summary
  • 3 Capacitors and Inductors
    • 3.1 Capacitors
    • 3.2 Inductors
    • 3.3 Summary
  • 4 Electronic System
    • 4.1 Introduction
    • 4.2 Electronic System Block Diagrams
    • 4.3 Information Processing Versus Power Electronics
    • 4.4 Analog Versus Digital Systems
    • 4.5 Conversion of Signals from Analog to Digital Form
    • 4.6 Relative Advantages of Analog and Digital Systems
  • 5 Operational Amplifiers
    • 5.1 Introduction
    • 5.2 Operational Amplifiers
    • 5.3 Ideal op-amp
    • 5.4 Inverting Amplifier
    • 5.5 Noninverting Amplifier
  • 6 Digital Logic Circuits
    • 6.1 Basic Concepts and Introduction
    • 6.2 Electrical Specifications for Logic Gates
  • 7 Transformer
    • 7.1 Introduction
    • 7.2 Construction of Transformer
    • 7.3 The Ideal Transformer
  • 8 Electrical Machines
    • 8.1 A Brief Overview
    • 8.2 Induction Machines
    • 8.3 Synchronous Machines
    • 8.4 Direct-Current Machines
  • 9 Automatic Control Systems
    • 9.1 Introduction
    • 9.2 Block Diagrams and Transfer Functions
    • 9.3 Open-Loop Control
    • 9.4 Closed-Loop Control: Feedback
    • 9.5 Objectives of a Control System
    • 9.6 Assignment
  • 10 Measurement
    • 10.1 Introduction
    • 10.2 Statistics
    • 10.3 Operating Characteristics
    • 10.4 Measurement Instruments
    • 10.5 Velocity Measurement
  • 11 Power Semiconductor Switches
    • 11.1 Introduction
    • 11.2 Thyristors
    • 11.3 Metal-Oxide-Semiconductor Field Effect Transistors
    • 11.4 Gate Turn-Off Thyristors
    • 11.5 Insulated Gate Bipolar Transistors
    • 11.6 Desired Characteristics in Controllable Switches
  • 12 Rectifiers and Inverters
    • 12.1 Introduction
    • 12.2 Basic Rectifier Concepts
    • 12.3 Practical Thyristor Converters
  • 13 Academic English
    • 13.1 Vocabulary
    • 13.2 Structure
    • 13.3 Common errors
Noninverting Amplifier

Non-inverting Operational Amplifier Configuration

non-inverting operational amplifier

In the previous Inverting Amplifier tutorial, we said that for an ideal op-amp “No current flows into the input terminal” of the amplifier and that “V1 always equals V2”. This was because the junction of the input and feedback signal ( V1 ) are at the same potential.

In other words the junction is a “virtual earth” summing point. Because of this virtual earth node the resistors, Rƒ and R2 form a simple potential divider network across the non-inverting amplifier with the voltage gain of the circuit being determined by the ratios of R2and Rƒ as shown below.