This project investigates Power and Signal Dual Modulation (PSDM) technology, integrating data communication and power delivery in compact power electronic systems. The focus is on the design and validation of high-frequency talkative converters, capable of encoding and demodulating binary data transmitted via switching noise at MHz frequencies. PSDM enables simultaneous data and power transfer, employing Frequency-Shift Keying (FSK) modulation and leveraging GaN-based converters for improved efficiency and performance. A prototype system was developed, achieving a transmission rate of 1 Mbit/s with a measured latency of 220 ns. The study also tackles high-frequency challenges, including switching losses and electromagnetic interference, through advanced solutions such as wide-bandgap semiconductors and hybrid EMI filtering. The findings highlight PSDM's potential as a scalable and reliable solution for high-speed, dual-purpose applications in modern power electronics, with future efforts directed toward performance optimization, expanded functionality, and broader application exploration.