Details
| Original language | English |
|---|---|
| Title of host publication | 2018 IEEE Applied Power Electronics Conference and Exposition (APEC) |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 316-322 |
| Number of pages | 7 |
| ISBN (electronic) | 9781538611807 |
| ISBN (print) | 9781538611814 |
| Publication status | Published - 2018 |
| Event | 33rd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2018 - San Antonio, United States Duration: 4 Mar 2018 → 8 Mar 2018 |
Publication series
| Name | Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC |
|---|---|
| ISSN (electronic) | 2470-6647 |
Abstract
Boost converters suffer from a bandwidth limitation caused by the right-half-plane zero (RHPZ), which occurs in the control-to-output transfer function. In contrast, there are many applications that require superior dynamic behavior. Further, size and cost of boost converter systems can be minimized by reduced voltage deviations and fast transient responses in case of large signal load transients. The key idea of the proposed ΔV/Δt-intervention control concept is to adapt the controller output to its new steady state value immediately after a load transient by prediction from known parameters. The concept is implemented in a digital control circuit, consisting of an ASIC in a 110nm-technology and a Xilinx Spartan-6 field programmable gate array (FPGA). In a boost converter with 3.5 V input voltage, 6.3 V output voltage, 1.2 A load, and 500 kHz switching frequency, the output voltage deviations are 2.8x smaller, scaling down the output capacitor value by the same factor. The recovery times are 2.4x shorter in case of large signal load transients with the proposed concept. The control is widely applicable, as it supports constant switching frequencies and allows for duty cycle and inductor current limitations. It also shows various advantages compared to conventional control and to selected adaptive control concepts.
ASJC Scopus subject areas
- Engineering(all)
- Electrical and Electronic Engineering
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2018 IEEE Applied Power Electronics Conference and Exposition (APEC). Institute of Electrical and Electronics Engineers Inc., 2018. p. 316-322 (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Δv/Δt-intervention control concept for improved transient response in digitally controlled boost converters
AU - Quenzer-Hohmuth, Samuel
AU - Ritzmann, Steffen
AU - Rosahl, Thoralf
AU - Wicht, Bernhard
N1 - Publisher Copyright: © 2018 IEEE. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2018
Y1 - 2018
N2 - Boost converters suffer from a bandwidth limitation caused by the right-half-plane zero (RHPZ), which occurs in the control-to-output transfer function. In contrast, there are many applications that require superior dynamic behavior. Further, size and cost of boost converter systems can be minimized by reduced voltage deviations and fast transient responses in case of large signal load transients. The key idea of the proposed ΔV/Δt-intervention control concept is to adapt the controller output to its new steady state value immediately after a load transient by prediction from known parameters. The concept is implemented in a digital control circuit, consisting of an ASIC in a 110nm-technology and a Xilinx Spartan-6 field programmable gate array (FPGA). In a boost converter with 3.5 V input voltage, 6.3 V output voltage, 1.2 A load, and 500 kHz switching frequency, the output voltage deviations are 2.8x smaller, scaling down the output capacitor value by the same factor. The recovery times are 2.4x shorter in case of large signal load transients with the proposed concept. The control is widely applicable, as it supports constant switching frequencies and allows for duty cycle and inductor current limitations. It also shows various advantages compared to conventional control and to selected adaptive control concepts.
AB - Boost converters suffer from a bandwidth limitation caused by the right-half-plane zero (RHPZ), which occurs in the control-to-output transfer function. In contrast, there are many applications that require superior dynamic behavior. Further, size and cost of boost converter systems can be minimized by reduced voltage deviations and fast transient responses in case of large signal load transients. The key idea of the proposed ΔV/Δt-intervention control concept is to adapt the controller output to its new steady state value immediately after a load transient by prediction from known parameters. The concept is implemented in a digital control circuit, consisting of an ASIC in a 110nm-technology and a Xilinx Spartan-6 field programmable gate array (FPGA). In a boost converter with 3.5 V input voltage, 6.3 V output voltage, 1.2 A load, and 500 kHz switching frequency, the output voltage deviations are 2.8x smaller, scaling down the output capacitor value by the same factor. The recovery times are 2.4x shorter in case of large signal load transients with the proposed concept. The control is widely applicable, as it supports constant switching frequencies and allows for duty cycle and inductor current limitations. It also shows various advantages compared to conventional control and to selected adaptive control concepts.
UR - http://www.scopus.com/inward/record.url?scp=85046968063&partnerID=8YFLogxK
U2 - 10.1109/APEC.2018.8341029
DO - 10.1109/APEC.2018.8341029
M3 - Conference contribution
AN - SCOPUS:85046968063
SN - 9781538611814
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 316
EP - 322
BT - 2018 IEEE Applied Power Electronics Conference and Exposition (APEC)
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 33rd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2018
Y2 - 4 March 2018 through 8 March 2018
ER -