A 1-V integrated current-mode boost converter in standard 3.3/5-V CMOS technologies
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AbstractA 1-V integrated CMOS current-mode boost converter implemented in a standard 3.3/5-V 0.6-μm CMOS technology (VTH ≈ 0.85 V), providing power-conversion efficiency of higher than 85% at 100-mA output current, is presented in this paper. The high-performance boost converter is successfully developed due to three proposed low-voltage circuit structures, including an inductor-current sensing circuit for current-mode operation with accuracy of higher than 94%, a precision V-I converter for compensation-ramp generation in current-mode control, and a VCO providing supply-independent clock and ramp signals. Moreover, a proposed startup circuit enables proper converter startup within a sub-1-V supply condition. © 2005 IEEE.
All Author(s) ListLeung C.Y., Mok P.K.T., Leung K.N.
Journal nameIEEE Journal of Solid-State Circuits
Volume Number40
Issue Number11
PublisherInstitute of Electrical and Electronics Engineers
Place of PublicationUnited States
Pages2265 - 2273
LanguagesEnglish-United Kingdom
KeywordsBoost converter, Current-mode control, Current-sensing circuit, Startup circuit

Last updated on 2021-22-09 at 00:30