Compact low swing gearbox-type integrated capacitive DC/DC converter

Compact low swing gearbox-type integrated capacitive DC/DC converter

For access to this article, please select a purchase option:

Buy article PDF
(plus tax if applicable)
Buy Knowledge Pack
10 articles for $120.00
(plus taxes if applicable)

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Your details
Why are you recommending this title?
Select reason:
Electronics Letters — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

A gearbox-type capacitive DC/DC converter is presented with an enhanced switch- and capacitor-array. The switch overhead is reduced significantly with respect to a conventional implementation. The presented topologies exhibit a lower swing on the intermediate capacitor nodes so that power loss due to the parasitic capacitances on these nodes is reduced drastically.


    1. 1)
      • Makowski, M.S., Maksimovic, D.: `Performance limits of switched-capacitor DC-DC converters', Power Electronics Specialists Conf., 1995, (PESC), , 2, p. 1215–1221.
    2. 2)
      • M.D. Seeman , S.R. Sanders . Analysis and optimization of switched-capacitor DC/DC converters. Trans. Power Electron. , 2 , 841 - 851
    3. 3)
      • J. Kwong , Y. Ramadass , N. Verma , A. Chandrakasan . A 65 nm sub-Vt microcontroller with integrated SRAM and switched capacitor DC-DC converter. IEEE J. Solid-State Circuits , 1 , 115 - 126
    4. 4)
      • Seeman, M.D., Sanders, S.R., Rabaey, J.: `An ultra-low-power power management IC for energy-scavenged wireless sensor nodes', Power Electronics Specialists Conf., 2008, p. 925–931.

Related content

This is a required field
Please enter a valid email address