Projects per year
Abstract
Power efficient Class-D audio amplifiers are very popular in mobile applications, despite the potential electromagnetic interference (EMI) caused by their output stage. Going to higher power levels, more effort has to be put into the reduction of EMI without sacrificing audio performance and efficiency. This work presents a Class-D output stage with an adaptive driver concept. The proposed driver monitors each output transition and dynamically adjusts dead-time and driver strength to reduce EMI while maintaining high audio fidelity. The presented concept is implemented in a 180nm CMOS technology and verified by measurement.
Original language | English |
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Title of host publication | IEEE International Symposium on Circuits and Systems (ISCAS) |
Publisher | Institute of Electrical and Electronics Engineers |
ISBN (Electronic) | 978-1-4673-6853-7 |
Publication status | Published - 2017 |
Event | IEEE International Symposium on Circuits and Systems: ISCAS 2017 - Baltimore, United States Duration: 28 May 2017 → 31 May 2017 |
Conference
Conference | IEEE International Symposium on Circuits and Systems |
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Abbreviated title | ISCAS |
Country/Territory | United States |
City | Baltimore |
Period | 28/05/17 → 31/05/17 |
Fields of Expertise
- Information, Communication & Computing
Projects
- 1 Finished