TY - GEN
T1 - A 96.6%-Efficiency Continuous-Input-Current Hybrid Dual-Path Buck-Boost Converter with Single-Mode Operation and Non-Stopping Output Current Delivery
AU - Shin, Hongseok
AU - Jang, Doojin
AU - Kang, Gyeong Gu
AU - Kim, Jinuk
AU - Kim, Chul
AU - Ha, Sohmyung
AU - Je, Minkyu
N1 - Publisher Copyright:
© 2021 JSAP.
PY - 2021/6/13
Y1 - 2021/6/13
N2 - This paper presents a hybrid dual-path Buck-Boost DC-DC converter (DPBB) achieving high power efficiency for the entire input voltage (VIN) range (2.8 to 4.2V) from a Li-ion battery for mobile applications. Unlike conventional noninverting buck-boost converters (CBB), the proposed DPBB supplies a load current (ILOAD) at all phases by using the inductor path (L-path) and capacitor path (C-path) alternately. As a result, our design achieves high efficiency by reducing conduction losses and suppresses the output voltage (VOUT) ripple. It has only a single control mode over the whole VIN range, unlike the previous designs that require complex mode transitions. Note that high efficiency is achieved not only across a wide ILOAD range but also over a wide VIN range. The proposed DPBB achieves 96.6% peak efficiency with the smallest difference between the maximum and minimum efficiencies over a given range of ILOAD and VIN.
AB - This paper presents a hybrid dual-path Buck-Boost DC-DC converter (DPBB) achieving high power efficiency for the entire input voltage (VIN) range (2.8 to 4.2V) from a Li-ion battery for mobile applications. Unlike conventional noninverting buck-boost converters (CBB), the proposed DPBB supplies a load current (ILOAD) at all phases by using the inductor path (L-path) and capacitor path (C-path) alternately. As a result, our design achieves high efficiency by reducing conduction losses and suppresses the output voltage (VOUT) ripple. It has only a single control mode over the whole VIN range, unlike the previous designs that require complex mode transitions. Note that high efficiency is achieved not only across a wide ILOAD range but also over a wide VIN range. The proposed DPBB achieves 96.6% peak efficiency with the smallest difference between the maximum and minimum efficiencies over a given range of ILOAD and VIN.
UR - http://www.scopus.com/inward/record.url?scp=85111797869&partnerID=8YFLogxK
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U2 - 10.23919/VLSICircuits52068.2021.9492409
DO - 10.23919/VLSICircuits52068.2021.9492409
M3 - Conference contribution
AN - SCOPUS:85111797869
T3 - IEEE Symposium on VLSI Circuits, Digest of Technical Papers
BT - 2021 Symposium on VLSI Circuits, VLSI Circuits 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 35th Symposium on VLSI Circuits, VLSI Circuits 2021
Y2 - 13 June 2021 through 19 June 2021
ER -