TY - GEN
T1 - Emulated Peak Current Mode Buck Converter for High Step-Down Applications
AU - Ji, Minkwang
AU - Jung, Jiho
AU - Oh, Jihun
AU - Choi, Joongho
N1 - Publisher Copyright:
© 2025 IEEE.
PY - 2025
Y1 - 2025
N2 - An Emulated Peak Current Mode (EPCM) buck converter for high step-down ratio DC-DC conversion is presented in this paper. The proposed control scheme overcomes the limitations of conventional peak current mode (PCM) control at high conversion ratios, namely the issues of current sensing and short on-time. By sampling the EPCM signal, the converter captures the valley current during the OFF cycle and emulates the inductor current ramp during the ON cycle, enabling stable current control without real-time current sensing. The converter accepts a 6-15 V input voltage and delivers an output voltage of 0.8 V to 1.1 V. The emulated current slope matches the actual slope with more than 99% accuracy, making it ideal for high step-down applications.
AB - An Emulated Peak Current Mode (EPCM) buck converter for high step-down ratio DC-DC conversion is presented in this paper. The proposed control scheme overcomes the limitations of conventional peak current mode (PCM) control at high conversion ratios, namely the issues of current sensing and short on-time. By sampling the EPCM signal, the converter captures the valley current during the OFF cycle and emulates the inductor current ramp during the ON cycle, enabling stable current control without real-time current sensing. The converter accepts a 6-15 V input voltage and delivers an output voltage of 0.8 V to 1.1 V. The emulated current slope matches the actual slope with more than 99% accuracy, making it ideal for high step-down applications.
KW - Emulated Current Correction
KW - Emulated Current Generator
KW - Emulated Peak Current Mode(EPCM)
KW - High step-down DC-DC converter
KW - Low-side current sensing
UR - https://www.scopus.com/pages/publications/105035391889
U2 - 10.1109/APCCAS67402.2025.11376730
DO - 10.1109/APCCAS67402.2025.11376730
M3 - Conference contribution
AN - SCOPUS:105035391889
T3 - Proceedings - 2025 21st IEEE Asia Pacific Conference on Circuits and Systems, APCCAS 2025
BT - Proceedings - 2025 21st IEEE Asia Pacific Conference on Circuits and Systems, APCCAS 2025
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2025 21st IEEE Asia Pacific Conference on Circuits and Systems, APCCAS 2025
Y2 - 12 October 2025 through 15 October 2025
ER -