Ultra-Fast Tracking Power Supply with 4th order Output Filter and Fixed-Frequency Hysteretic Control

Mikkel Christian Wendelboe Høyerby; Michael Andreas E. Andersen

doi:10.1109/TPEL.2008.2002038

Ultra-Fast Tracking Power Supply with 4th order Output Filter and Fixed-Frequency Hysteretic Control

Mikkel Christian Wendelboe Høyerby, Michael Andreas E. Andersen

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

A practical solution is presented for the design of a non-isolated DC/DC power converter with very low output ripple voltage and very fast output voltage step response. The converter is intended for use as an envelope tracking power supply for an RFPA (Radio Frequency Power Amplifier) in a Tetra2 base station. A simple and effective fixed-frequency hysteretic control scheme for the converter (buck with 4th order output filter) is developed and analyzed. The proposed approach is verified experimentally by a 500W output prototype, capable of delivering any voltage in the range of 10-30V within 10μs with 10mVpp of output ripple and efficiencies in the 88- 95% range.

Original language	English
Journal	IEEE Transactions on Power Electronics
Volume	23
Issue number	5
Pages (from-to)	2387-2398
ISSN	0885-8993
DOIs	https://doi.org/10.1109/TPEL.2008.2002038
Publication status	Published - 2008

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@article{563800c5ace248b7a0905232fc02d70b,

title = "Ultra-Fast Tracking Power Supply with 4th order Output Filter and Fixed-Frequency Hysteretic Control",

abstract = "A practical solution is presented for the design of a non-isolated DC/DC power converter with very low output ripple voltage and very fast output voltage step response. The converter is intended for use as an envelope tracking power supply for an RFPA (Radio Frequency Power Amplifier) in a Tetra2 base station. A simple and effective fixed-frequency hysteretic control scheme for the converter (buck with 4th order output filter) is developed and analyzed. The proposed approach is verified experimentally by a 500W output prototype, capable of delivering any voltage in the range of 10-30V within 10μs with 10mVpp of output ripple and efficiencies in the 88- 95\% range.",

keywords = "comparator modeling, self-oscillating, 4th order filter, hysteretic control, envelope tracking, high-bandwidth",

author = "H{\o}yerby, \{Mikkel Christian Wendelboe\} and Andersen, \{Michael Andreas E.\}",

year = "2008",

doi = "10.1109/TPEL.2008.2002038",

language = "English",

volume = "23",

pages = "2387--2398",

journal = "IEEE Transactions on Power Electronics",

issn = "0885-8993",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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T1 - Ultra-Fast Tracking Power Supply with 4th order Output Filter and Fixed-Frequency Hysteretic Control

AU - Høyerby, Mikkel Christian Wendelboe

AU - Andersen, Michael Andreas E.

PY - 2008

Y1 - 2008

N2 - A practical solution is presented for the design of a non-isolated DC/DC power converter with very low output ripple voltage and very fast output voltage step response. The converter is intended for use as an envelope tracking power supply for an RFPA (Radio Frequency Power Amplifier) in a Tetra2 base station. A simple and effective fixed-frequency hysteretic control scheme for the converter (buck with 4th order output filter) is developed and analyzed. The proposed approach is verified experimentally by a 500W output prototype, capable of delivering any voltage in the range of 10-30V within 10μs with 10mVpp of output ripple and efficiencies in the 88- 95% range.

AB - A practical solution is presented for the design of a non-isolated DC/DC power converter with very low output ripple voltage and very fast output voltage step response. The converter is intended for use as an envelope tracking power supply for an RFPA (Radio Frequency Power Amplifier) in a Tetra2 base station. A simple and effective fixed-frequency hysteretic control scheme for the converter (buck with 4th order output filter) is developed and analyzed. The proposed approach is verified experimentally by a 500W output prototype, capable of delivering any voltage in the range of 10-30V within 10μs with 10mVpp of output ripple and efficiencies in the 88- 95% range.

KW - comparator modeling

KW - self-oscillating

KW - 4th order filter

KW - hysteretic control

KW - envelope tracking

KW - high-bandwidth

U2 - 10.1109/TPEL.2008.2002038

DO - 10.1109/TPEL.2008.2002038

M3 - Journal article

SN - 0885-8993

VL - 23

SP - 2387

EP - 2398

JO - IEEE Transactions on Power Electronics

JF - IEEE Transactions on Power Electronics

IS - 5

ER -

Ultra-Fast Tracking Power Supply with 4th order Output Filter and Fixed-Frequency Hysteretic Control

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