Student Work
Class D audio amplifier
PublicThis project involved the analysis, design and implementation a Class-D audio amplifier with a power efficiency of greater than 90%. The circuit was optimized for a 12 Volt single-supply system using four power MOSFET's in an H-Bridge configuration to drive a 2N speaker load. Pulse-Width-Modulation (PWM) was then used to control the MOSFET's. In addition, switching losses were minimized by utilizing three-level PWM to prevent MOSFET switching for a zero-level input signal. Power measurements on the circuit confirm the theoretical predictions.
- This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.
- Creator
- Publisher
- Identifier
- 03D187M
- Advisor
- Year
- 2003
- Date created
- 2003-01-01
- Resource type
- Major
- Rights statement
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Permanent link to this page: https://digital.wpi.edu/show/mc87pt25f