Simple hardware implementation of an adaptive mixed signal current programmed mode control for near minimum deviation transient response

T. McRae; A. Prodic

doi:10.1109/APEC.2017.7930835

Simple hardware implementation of an adaptive mixed signal current programmed mode control for near minimum deviation transient response

T. McRae, A. Prodic

University of Toronto

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

Abstract

This paper introduces a practical auto-tuned controller achieving near minimum deviation of the output voltage while using mixed-signal current programmed mode (CpM) implemented with very simple digital hardware. Compared to most time optimal and minimum deviation control methods, this method does not rely on fast current sensing and/or valley point detection, is unaffected by components variations, and requires no complex calculations. These advantages are obtained by utilizing a very simple control law requiring only a single multiplication of the measured capacitor voltage deviation value. A 12 V to 3.3 V/ 5 A buck converter prototype operating at 500 kHz has been implemented to show the effectiveness of this controller. Experimental results confirm a one switching cycle recovery of the inductor current to the new steady state value and practically minimum deviation of the output voltage.

Original language	English
Title of host publication	2017 IEEE Applied Power Electronics Conference and Exposition, APEC 2017
Number of pages	6
Publisher	IEEE
Publication date	17. May 2017
Pages	1116-1121
Article number	7930835
ISBN (Electronic)	9781509053667
DOIs	https://doi.org/10.1109/APEC.2017.7930835
Publication status	Published - 17. May 2017
Event	32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017 - Tampa, United States Duration: 26. Mar 2017 → 30. Mar 2017

Conference

Conference	32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017
Country/Territory	United States
City	Tampa
Period	26/03/2017 → 30/03/2017
Sponsor	IEEE Industry Applications Society, IEEE Power Electronics Society, Power Sources Manufacturers Association (PSMA)

Series	IEEE Applied Power Electronics Conference and Exposition (APEC) Proceedings

Bibliographical note

Publisher Copyright:
© 2017 IEEE.

Keywords

Digital control
Direct energy transfer
Hardware efficient
Minimum deviation
Non-linear control
Time optimal

Documents & Links

10.1109/APEC.2017.7930835

Cite this

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title = "Simple hardware implementation of an adaptive mixed signal current programmed mode control for near minimum deviation transient response",

abstract = "This paper introduces a practical auto-tuned controller achieving near minimum deviation of the output voltage while using mixed-signal current programmed mode (CpM) implemented with very simple digital hardware. Compared to most time optimal and minimum deviation control methods, this method does not rely on fast current sensing and/or valley point detection, is unaffected by components variations, and requires no complex calculations. These advantages are obtained by utilizing a very simple control law requiring only a single multiplication of the measured capacitor voltage deviation value. A 12 V to 3.3 V/ 5 A buck converter prototype operating at 500 kHz has been implemented to show the effectiveness of this controller. Experimental results confirm a one switching cycle recovery of the inductor current to the new steady state value and practically minimum deviation of the output voltage.",

keywords = "Digital control, Direct energy transfer, Hardware efficient, Minimum deviation, Non-linear control, Time optimal",

author = "T. McRae and A. Prodic",

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McRae, T & Prodic, A 2017, Simple hardware implementation of an adaptive mixed signal current programmed mode control for near minimum deviation transient response. in 2017 IEEE Applied Power Electronics Conference and Exposition, APEC 2017., 7930835, IEEE, IEEE Applied Power Electronics Conference and Exposition (APEC) Proceedings, pp. 1116-1121, 32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017, Tampa, United States, 26/03/2017. https://doi.org/10.1109/APEC.2017.7930835

Simple hardware implementation of an adaptive mixed signal current programmed mode control for near minimum deviation transient response. / McRae, T.; Prodic, A.
2017 IEEE Applied Power Electronics Conference and Exposition, APEC 2017. IEEE, 2017. p. 1116-1121 7930835 (IEEE Applied Power Electronics Conference and Exposition (APEC) Proceedings).

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

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N2 - This paper introduces a practical auto-tuned controller achieving near minimum deviation of the output voltage while using mixed-signal current programmed mode (CpM) implemented with very simple digital hardware. Compared to most time optimal and minimum deviation control methods, this method does not rely on fast current sensing and/or valley point detection, is unaffected by components variations, and requires no complex calculations. These advantages are obtained by utilizing a very simple control law requiring only a single multiplication of the measured capacitor voltage deviation value. A 12 V to 3.3 V/ 5 A buck converter prototype operating at 500 kHz has been implemented to show the effectiveness of this controller. Experimental results confirm a one switching cycle recovery of the inductor current to the new steady state value and practically minimum deviation of the output voltage.

AB - This paper introduces a practical auto-tuned controller achieving near minimum deviation of the output voltage while using mixed-signal current programmed mode (CpM) implemented with very simple digital hardware. Compared to most time optimal and minimum deviation control methods, this method does not rely on fast current sensing and/or valley point detection, is unaffected by components variations, and requires no complex calculations. These advantages are obtained by utilizing a very simple control law requiring only a single multiplication of the measured capacitor voltage deviation value. A 12 V to 3.3 V/ 5 A buck converter prototype operating at 500 kHz has been implemented to show the effectiveness of this controller. Experimental results confirm a one switching cycle recovery of the inductor current to the new steady state value and practically minimum deviation of the output voltage.

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McRae T, Prodic A. Simple hardware implementation of an adaptive mixed signal current programmed mode control for near minimum deviation transient response. In 2017 IEEE Applied Power Electronics Conference and Exposition, APEC 2017. IEEE. 2017. p. 1116-1121. 7930835. (IEEE Applied Power Electronics Conference and Exposition (APEC) Proceedings). doi: 10.1109/APEC.2017.7930835

Simple hardware implementation of an adaptive mixed signal current programmed mode control for near minimum deviation transient response

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Bibliographical note

Keywords

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