A High-Accuracy Hysteretic DC-DC Converter Using A Spread-Spectrum EMI Suppression Technique with Double Gold Codes

Tsung Wen Sun*, Meng Ze Li, Tsung Heng Tsai, Chia Chan Chang

*此作品的通信作者

研究成果: Conference contribution同行評審

摘要

This paper presents a hysteretic buck-boost converter using a double gold code spread-spectrum (DGCSS) technique to suppress the electromagnetic interference (EMI). To enhance the spread-spectrum effect, the delay time and hysteretic window are both implemented with the uniform gold code sequence to improve the randomness of the random number generators. The proposed DGCSS randomizes the switching frequency and results in low EMI in the power spectral density. The high-accuracy feed-forward current sensing with a compensator improves the load regulation and eliminates the tradeoff between the in-phase accuracy and output ripples. The prototype is simulated in TSMC 180 nm CMOS process. Simulation results show that the peak power efficiency of 90.97% and the peak-spur suppression of 30.58 dBµ V are achieved. The average output voltage ripple is 21 mV and the recovery time is 7.2 µ s.

原文English
主出版物標題21st IEEE Interregional NEWCAS Conference, NEWCAS 2023 - Proceedings
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(電子)9798350300246
DOIs
出版狀態Published - 2023
事件21st IEEE Interregional NEWCAS Conference, NEWCAS 2023 - Edinburgh, 英國
持續時間: 26 6月 202328 6月 2023

出版系列

名字21st IEEE Interregional NEWCAS Conference, NEWCAS 2023 - Proceedings

Conference

Conference21st IEEE Interregional NEWCAS Conference, NEWCAS 2023
國家/地區英國
城市Edinburgh
期間26/06/2328/06/23

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