Power Converters for Power-Ultrasonic Transducers

Ying Wang; Mike Draper; Simon Denley; Francis Robinson; Peter Shepherd

Power Converters for Power-Ultrasonic Transducers

Ying Wang, Mike Draper, Simon Denley, Francis Robinson, Peter Shepherd

Department of Electronic & Electrical Engineering

Research output: Chapter or section in a book/report/conference proceeding › Chapter in a published conference proceeding

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Abstract

High-performance power-converters in the form of single-tone class-D amplifiers are required to drive power-ultrasonic transducers in industrial applications. These must produce low-distortion, variable-frequency, and variable-amplitude sinusoidal currents to efficiently drive the piezoelectric cell and horn of transducers, and thereby vibrate materialprocessing stages. A resonant-tracking control strategy is generally used to efficiently couple and regulate output power delivery at a high-Q probe-system resonant mode. This paper reviews a number of power-converter control options suitable for such probe drivers, including quasi-squarewave (QS), naturally sampling pulse width modulation (PWM) and programmed PWM (PPWM). Typical output-waveform quality and the PSPICE models of the power-converter and piezoelectric transducer developed to assess and compare methods are presented.

Original language	English
Title of host publication	46th International Universities' Power Engineering Conference (UPEC)
Place of Publication	Germany
Pages	1 - 6
Number of pages	6
Publication status	Published - Sept 2011
Event	46th International Universities' Power Engineering Conference (UPEC 2011) - Soest, Germany Duration: 5 Sept 2011 → 8 Sept 2011

Conference

Conference	46th International Universities' Power Engineering Conference (UPEC 2011)
Country/Territory	Germany
City	Soest
Period	5/09/11 → 8/09/11

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Power Converters for Power-Ultrasonic Transducers
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title = "Power Converters for Power-Ultrasonic Transducers",

abstract = "High-performance power-converters in the form of single-tone class-D amplifiers are required to drive power-ultrasonic transducers in industrial applications. These must produce low-distortion, variable-frequency, and variable-amplitude sinusoidal currents to efficiently drive the piezoelectric cell and horn of transducers, and thereby vibrate materialprocessing stages. A resonant-tracking control strategy is generally used to efficiently couple and regulate output power delivery at a high-Q probe-system resonant mode. This paper reviews a number of power-converter control options suitable for such probe drivers, including quasi-squarewave (QS), naturally sampling pulse width modulation (PWM) and programmed PWM (PPWM). Typical output-waveform quality and the PSPICE models of the power-converter and piezoelectric transducer developed to assess and compare methods are presented.",

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AU - Wang, Ying

AU - Draper, Mike

AU - Denley, Simon

AU - Robinson, Francis

AU - Shepherd, Peter

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AB - High-performance power-converters in the form of single-tone class-D amplifiers are required to drive power-ultrasonic transducers in industrial applications. These must produce low-distortion, variable-frequency, and variable-amplitude sinusoidal currents to efficiently drive the piezoelectric cell and horn of transducers, and thereby vibrate materialprocessing stages. A resonant-tracking control strategy is generally used to efficiently couple and regulate output power delivery at a high-Q probe-system resonant mode. This paper reviews a number of power-converter control options suitable for such probe drivers, including quasi-squarewave (QS), naturally sampling pulse width modulation (PWM) and programmed PWM (PPWM). Typical output-waveform quality and the PSPICE models of the power-converter and piezoelectric transducer developed to assess and compare methods are presented.

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M3 - Chapter in a published conference proceeding

SN - 978-3-8007-3402-3

SP - 1

EP - 6

BT - 46th International Universities' Power Engineering Conference (UPEC)

CY - Germany

T2 - 46th International Universities' Power Engineering Conference (UPEC 2011)

Y2 - 5 September 2011 through 8 September 2011

ER -

Power Converters for Power-Ultrasonic Transducers

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