@inproceedings{edb78c2b2585466bbb0b054a580259bc,
title = "A Charge Pump Based Power Management Unit with 66\%-Efficiency in 65 nm CMOS",
abstract = "This paper presents a single stage power management unit that includes an enhanced stage-switch Dickson charge pump (DCP) to boost and regulate a low input voltage. A new switching mechanism is presented to significantly reduce the losses encountered in conventional DCP switches. Frequency and stage modulation are utilized in the proposed design. The stage modulation provides different gain levels (coarse) and the frequency modulation tunes the voltage level and regulates the output voltage based on a pre-determined reference voltage. Using four stages charge pump, silicon measurement results in 65 nm CMOS technology show a maximum efficiency of 66\% at input voltage of 0.7 V and output power of 27 μW. The system supports a range of load current between 0.1 μA - 34 μA with a maximum operating frequency of 1.8MHz. The proposed system supports an input voltage range from 0.55 to 0.7 V which can be used in energy harvesting applications such as solar and thermal harvesting.",
keywords = "Dickson charge pump, frequency modulation, PMU energy harvesting, Solar cell, stage modulation, thermal harvesting",
author = "Abdulqader Mahmoud and Mohammad Alhawari and Baker Mohammad and Hani Saleh and Mohammed Ismail",
note = "Publisher Copyright: {\textcopyright} 2018 IEEE.; 2018 IEEE International Symposium on Circuits and Systems, ISCAS 2018 ; Conference date: 27-05-2018 Through 30-05-2018",
year = "2018",
month = apr,
day = "26",
doi = "10.1109/ISCAS.2018.8350898",
language = "British English",
series = "Proceedings - IEEE International Symposium on Circuits and Systems",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2018 IEEE International Symposium on Circuits and Systems, ISCAS 2018 - Proceedings",
address = "United States",
}
