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FPGA 기반 64채널 다중 주파수 제어가 가능한 초음파 펄서 시스템
전호윤(Hoyoon Jeon),심신용(Shinyong Shim),이현수(Hyun-Su Lee),김태룡(Tae Ryong Kim),이형민(Hyung-Min Lee),김진식(Jinsik Kim),이병철(Byung Chul Lee) 대한전자공학회 2020 대한전자공학회 학술대회 Vol.2020 No.11
This study aimed to enhance a 64-channel ultrasonic pulser system’s performance by controlling frequency in each channel. Conventional systems are integrated as one body and operate pulse generation at one preset frequency, limiting the effectiveness of ultrasonic applications. A 64-channel FPGA was implemented to our ultrasonic pulser system to increase system capability with various frequencies. Additionally, detachable circuit boards were designed for a modularized system to enable selective replacement and improvement of modularized circuits. Several variables such as frequency, PRF, cycle, and time delay for each channel were measured by an oscilloscope to be identical to preset values; therefore, the system operation was verified successfully. The suggested FPGA-based 64-channel ultrasonic pulser system can be used primarily for ultrasound-guided ultrasound therapy with various transducers in the future.