模电英文课件ch12.1.ppt

Ch12 Feedback and Stability 12.1 Basic Feedback Concepts and Configurations Ch12 Feedback and Stability 12.0 Preview 12.1 Basic Feedback Concepts and Configurations 12.1.1 Basic Feedback Concepts 12.1.1 Basic Feedback Concepts 1. Feedback 12.1.1 Basic Feedback Concepts 2. Types of Feedback 2. Two Types of Feedback Example 1 2. Two Types of Feedback Example 2 12.1.1 Basic Feedback Concepts 2. Types of Feedback 12.1.2 Basic Feedback Configurations 1. Types of Connection 12.1.2 Basic Feedback Configurations 2. Recognizing Techniques 12.1.2 Basic Feedback Configurations Example 2-a1_amp circuit 12.1.2 Basic Feedback Configurations Example 2-a2_discrete circuit 12.1.2 Basic Feedback Configurations Example 2-b1_amp circuit 12.1.2 Basic Feedback Configurations Example 2-b2_discrete circuit 12.1.2 Basic Feedback Configurations Example 2-c1_amp circuit 12.1.2 Basic Feedback Configurations Example 2-c2_discrete circuit 12.1.2 Basic Feedback Configurations Example 2-d1_amp circuit 12.1.2 Basic Feedback Configurations Example 2-d2_discrete circuit 12.1.2 Basic Feedback Configurations 3. Characteristics of feedback configurations 12.1.2 Basic Feedback Configurations 3. Characteristics of feedback configurations 12.1.2 Basic Feedback Configurations 4. Source affect feedback 12.1.2 Basic Feedback Configurations 4. Source affect feedback Example Sol: Example Sol: Example Sol: Example Sol: Example Sol: Example Sol: * 12.1.2 Basic Feedback Configurations 12.1.1 Basic Feedback Concepts Feedback is commonly used in amplifier circuits. There are two types of feedback. In negative feedback, output signal (or portion of it) is fed back to input side and is subtracted from input signal. In positive feedback, output signal (or portion of it) is fed back to input side and added to input signal. Objectives To learn about types and properties of feed back amplifier. To investigate feedback configurations and their properties, as well as circuit implementatio