Dynamically Reconfigurable Gearbox Switched-Capacitor DC-DC Converter

Dennis Øland Larsen; Martin Vinter; Ivan Harald Holger Jørgensen

doi:10.1109/NORCHIP.2018.8573520

Dynamically Reconfigurable Gearbox Switched-Capacitor DC-DC Converter

Dennis Øland Larsen, Martin Vinter, Ivan Harald Holger Jørgensen

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

A dual output battery-connected reconfigurable switched capacitor dc-dc converter (SCC) is presented. The design improves the overall power efficiency of the system by reconfiguring the SCC output stage based on the output load scenario. The number of capacitors to use in an SCC is a tradeoff between area and efficiency. Having more capacitors improves efficiency but increases the implementation area and cost. The proposed combined dynamically reconfigurable output stage changes the number of capacitors used for each output depending on the load. The implemented converter is compared with a solution where an SCC is implemented separately for each of the outputs. Transistor level simulations of the proposed and prior art output stages show an overall improved efficiency.

Original language	English
Title of host publication	Proceedings of 2018 IEEE Nordic Circuits and Systems Conference (NORCAS)
Number of pages	5
Publisher	IEEE
Publication date	2018
Pages	1-5
ISBN (Print)	9781538676561
DOIs	https://doi.org/10.1109/NORCHIP.2018.8573520
Publication status	Published - 2018
Event	2018 IEEE Nordic Circuits and Systems Conference (NORCAS): NORCHIP and International Symposium of System-on-Chip (SoC) - Tallink Spa & Conference Hotel, Tallinn, Estonia Duration: 30 Oct 2018 → 31 Oct 2018

Conference

Conference	2018 IEEE Nordic Circuits and Systems Conference (NORCAS): NORCHIP and International Symposium of System-on-Chip (SoC)
Location	Tallink Spa & Conference Hotel
Country	Estonia
City	Tallinn
Period	30/10/2018 → 31/10/2018

Keywords

Capacitors
Topology
Switches
Batteries
Capacitance
MOS devices
Clocks

Access to Document

10.1109/NORCHIP.2018.8573520

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Cite this

@inproceedings{7868b2cbf050407292cce39333eb6fa0,

title = "Dynamically Reconfigurable Gearbox Switched-Capacitor DC-DC Converter",

abstract = "A dual output battery-connected reconfigurable switched capacitor dc-dc converter (SCC) is presented. The design improves the overall power efficiency of the system by reconfiguring the SCC output stage based on the output load scenario. The number of capacitors to use in an SCC is a tradeoff between area and efficiency. Having more capacitors improves efficiency but increases the implementation area and cost. The proposed combined dynamically reconfigurable output stage changes the number of capacitors used for each output depending on the load. The implemented converter is compared with a solution where an SCC is implemented separately for each of the outputs. Transistor level simulations of the proposed and prior art output stages show an overall improved efficiency.",

keywords = "Capacitors, Topology, Switches, Batteries, Capacitance, MOS devices, Clocks",

author = "Larsen, {Dennis {\O}land} and Martin Vinter and J{\o}rgensen, {Ivan Harald Holger}",

year = "2018",

doi = "10.1109/NORCHIP.2018.8573520",

language = "English",

isbn = "9781538676561",

pages = "1--5",

booktitle = "Proceedings of 2018 IEEE Nordic Circuits and Systems Conference (NORCAS)",

publisher = "IEEE",

address = "United States",

note = "2018 IEEE Nordic Circuits and Systems Conference (NORCAS): NORCHIP and International Symposium of System-on-Chip (SoC) ; Conference date: 30-10-2018 Through 31-10-2018",

}

Larsen, DØ, Vinter, M & Jørgensen, IHH 2018, Dynamically Reconfigurable Gearbox Switched-Capacitor DC-DC Converter. in Proceedings of 2018 IEEE Nordic Circuits and Systems Conference (NORCAS). IEEE, pp. 1-5, 2018 IEEE Nordic Circuits and Systems Conference (NORCAS): NORCHIP and International Symposium of System-on-Chip (SoC), Tallinn, Estonia, 30/10/2018. https://doi.org/10.1109/NORCHIP.2018.8573520

TY - GEN

T1 - Dynamically Reconfigurable Gearbox Switched-Capacitor DC-DC Converter

AU - Larsen, Dennis Øland

AU - Vinter, Martin

AU - Jørgensen, Ivan Harald Holger

PY - 2018

Y1 - 2018

N2 - A dual output battery-connected reconfigurable switched capacitor dc-dc converter (SCC) is presented. The design improves the overall power efficiency of the system by reconfiguring the SCC output stage based on the output load scenario. The number of capacitors to use in an SCC is a tradeoff between area and efficiency. Having more capacitors improves efficiency but increases the implementation area and cost. The proposed combined dynamically reconfigurable output stage changes the number of capacitors used for each output depending on the load. The implemented converter is compared with a solution where an SCC is implemented separately for each of the outputs. Transistor level simulations of the proposed and prior art output stages show an overall improved efficiency.

AB - A dual output battery-connected reconfigurable switched capacitor dc-dc converter (SCC) is presented. The design improves the overall power efficiency of the system by reconfiguring the SCC output stage based on the output load scenario. The number of capacitors to use in an SCC is a tradeoff between area and efficiency. Having more capacitors improves efficiency but increases the implementation area and cost. The proposed combined dynamically reconfigurable output stage changes the number of capacitors used for each output depending on the load. The implemented converter is compared with a solution where an SCC is implemented separately for each of the outputs. Transistor level simulations of the proposed and prior art output stages show an overall improved efficiency.

KW - Capacitors

KW - Topology

KW - Switches

KW - Batteries

KW - Capacitance

KW - MOS devices

KW - Clocks

U2 - 10.1109/NORCHIP.2018.8573520

DO - 10.1109/NORCHIP.2018.8573520

M3 - Article in proceedings

SN - 9781538676561

SP - 1

EP - 5

BT - Proceedings of 2018 IEEE Nordic Circuits and Systems Conference (NORCAS)

PB - IEEE

T2 - 2018 IEEE Nordic Circuits and Systems Conference (NORCAS): NORCHIP and International Symposium of System-on-Chip (SoC)

Y2 - 30 October 2018 through 31 October 2018

ER -