Transcription of Class D Amplifier Design Basics II - irf.com
{{id}} {{{paragraph}}}
Example: air traffic controller
Class D Amplifier Design Basics II - irf.com
Class D Amplifier Design Basics II. 02/19/2009. Rev 1. Contents Chapter 1. Getting Familiar with Class D Audio Amplifier Chapter 2. Latest Class D Audio Amplifier Technology Trend Chapter 3. Identifying Problems ~ Performance Measurement of Class D Amplifier Chapter 4. Reducing Distortion ~Dead-time ~ LPF Designs Chapter 5. Reducing noise ~ Isolation Technique ~ PCB Design APPENDIX. Simulation of a Simple Class D Amplifier 2. Chapter 1: Getting Familiar with Class D Audio Amplifier Audio Amplifier Market Trend More Channels Smaller Box Lighter Weight A Wire with Gain More Functions (Digital Input, Diag). Smaller Size Device Technology Lower Cost Control Technology Audio Performance 4. Why Class D Now? Audio Market Trend More Channels Class AB Smaller Size Smaller Size IR. Class D. Higher Performance Device Technology MOSFET. High Speed HVIC. 5. Basic Concept of Class D Audio Amplifier Class D. COMP LPF. Switching Stage Analog signal PWM Amplify PWM Analog signal VOUT = B (2D-1).
Noise immunity Inherently immune to incoming noise; low drive impedance, inductor between the load and amplifier. Because of strong non-linearity in device and 'exposed' feedback node, weak to RF noise. Reliability Higher reliability from less heat. Less metal fatigue in solder joints. Linearity Stability
Loading..
Tags:
Information
Domain:
Source:
Link to this page:
Please notify us if you found a problem with this document: