Agenda

Monday, 16 -- Monday, 16 December 2024
14:30-16:30
Senaatszaal, Aula

High Performance Class-D Amplifiers

Shoubhik Karmakar

This dissertation presents advancements in Class-D audio amplifier design, addressing the key challenges of system cost and size, electromagnetic interference (EMI), and audio fidelity in modern applications. The research develops two innovative amplifier prototypes targeting automotive and piezoelectric speaker systems. The first prototype introduces a hybrid ΔΣM-PWM modulation scheme to meet stringent automotive EMI standards while maintaining high efficiency and audio quality. The second prototype eliminates the need for external damping resistors in piezoelectric speaker drivers, significantly reducing system cost and size. Measurement results validate the performance of the proposed designs, demonstrating state-of-the-art efficiency, EMI suppression, and audio fidelity. This work contributes to the development of cost-effective, high-performance audio amplification solutions for diverse consumer and automotive applications.

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Overview of PhD Thesis Defence

Agenda

Thu, 23 Jan 2025
16:00
EEMCS, lecture hall Chip

Microelectronics colloquium

Raj Thilak Rajan

Signal Processing for Intelligent Multi-Agent Swarms

Multi-agent swarms or mobile networked cyber-physical systems are increasingly adopted in various applications, to enable robust and efficient operations in diverse and challenging environments. One of the key features of these multi-agent systems is edge-based autonomy and intelligence.

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