Open AccessCapacitance‐sharing, dual‐output, compact, switched‐capacitor DC–DC converter for low‐power biomedical implants
Author(s) -
Safarian Z.,
Hashemi H.
Publication year - 2014
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2014.1842
Subject(s) - capacitor , switched capacitor , electrical engineering , capacitance , materials science , charge sharing , converters , cmos , voltage , power (physics) , dual (grammatical number) , charge pump , boost converter , electronic engineering , optoelectronics , engineering , physics , electrode , quantum mechanics , art , literature
A dual‐output, compact, switched‐capacitor DC–DC converter is presented for efficient voltage generation in low‐power biomedical implants. By sharing the charge transfer capacitors between multiple independent switched‐capacitor DC–DC converters, fewer capacitors are required, resulting in overall system size reduction. A proof‐of‐concept capacitance‐sharing, dual‐output DC–DC converter, converting 1.2 V – 0.4 V and 0.8 V, fabricated in a 0.13 μm CMOS technology, occupying 0.3 mm 2 and achieving a peak efficiency of 97.6% is demonstrated.