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Design and Control of An Integrated 3-Level Boost Converter under DCM Operation
Tan Y.; Lam C.-S.; Sin S.-W.; Wong M.-C.; Martins R.P.
2018-04-26
Conference NameIEEE International Symposium on Circuits and Systems (ISCAS)
Source PublicationProceedings - IEEE International Symposium on Circuits and Systems
Volume2018-May
Conference DateMAY 27-30, 2018
Conference PlaceFlorence, ITALY
Abstract

A 3-level boost (3LB) converter has the characteristics of higher voltage conversion efficiency, lower inductor current ripples, output voltage ripples and voltage stresses on switches when compared with the conventional boost converters in continuous conduction mode (CCM). When the 3LB is integrated on a chip, we cannot avoid its discontinuous conduction mode (DCM) operation due to a small inductance and load variation. In this paper we'll present and discuss the design and control of a 3LB converter in DCM operation, implemented in a 65-nm CMOS process. Transistor level simulation results show that it operates at 100 MHz with a 5nH inductor, a 4nF output capacitor and a 2.5nF fly capacitor achieving an output conversion range of 1.5 V to 2.1V from a 1.2 V input supply, with a peak efficiency of 83.2%@90mW, a load transient response of 141mV and 1.64ns/mA for undershoot, 136mV and 1.93ns/mA for overshoot, and a voltage ripple less than 60/85mV when I =40/80mA with a typical and the maximum output voltage ripple of less than 90mV in the worst corner.

Keyword3-level Boost Converter Dcm Fast Transient Response Low Ripple Voltage Mode Controller
DOI10.1109/ISCAS.2018.8351144
URLView the original
Indexed BySCI
Language英语
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000451218701048
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Citation statistics
Cited Times [WOS]:1   [WOS Record]     [Related Records in WOS]
Document TypeConference paper
CollectionINSTITUTE OF MICROELECTRONICS
AffiliationUniversidade de Macau
Recommended Citation
GB/T 7714
Tan Y.,Lam C.-S.,Sin S.-W.,et al. Design and Control of An Integrated 3-Level Boost Converter under DCM Operation[C],2018.
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