Coreless inductive power supply for ultrasonic transducer on machine tool

Tsair Rong Chen, Chun Ming Chen, Po Hsuan Chen, Yu-Lin Juan, Yi Lung Lee, Hui Mei Chang

Research output: Contribution to journalLetter

Abstract

An inductive power supply with concentric coreless transformer is proposed for the ultrasonic transducer on machine tools. The concentric coreless transformer is designed not to increase mounting weight onto the spindle and transfer power to the ultrasonic transducer without contact losses. A switching power supply composed of a series-parallel resonant compensation circuit and a full-bridge inverter is also designed to convert the power from stationary side to the rotary ultrasonic transducer (UST) through the coreless concentric transformer. A primary-side controller based on fed back primary-side current is also proposed for output voltage control. Therefore, there are only the secondary winding and the parallel compensation capacitor required to be mounted on to the spindle. From the experimental results, it can be seen that the proposed power supply can provide a stable AC power with 25 kHz/70 V to the ultrasonic transducer. The efficiency of the proposed power supply is up to 90% and the efficiency difference between stationary and rotary operations is only about 2%.

Original languageEnglish
Article number20180833
JournalIEICE Electronics Express
Volume15
Issue number20
DOIs
Publication statusPublished - 2018 Oct 25

Fingerprint

machine tools
Ultrasonic transducers
Machine tools
power supplies
transducers
ultrasonics
transformers
spindles
mounting
Mountings
Voltage control
alternating current
controllers
capacitors
Capacitors
Controllers
Networks (circuits)
output
electric potential
Compensation and Redress

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Chen, Tsair Rong ; Chen, Chun Ming ; Chen, Po Hsuan ; Juan, Yu-Lin ; Lee, Yi Lung ; Chang, Hui Mei. / Coreless inductive power supply for ultrasonic transducer on machine tool. In: IEICE Electronics Express. 2018 ; Vol. 15, No. 20.
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title = "Coreless inductive power supply for ultrasonic transducer on machine tool",
abstract = "An inductive power supply with concentric coreless transformer is proposed for the ultrasonic transducer on machine tools. The concentric coreless transformer is designed not to increase mounting weight onto the spindle and transfer power to the ultrasonic transducer without contact losses. A switching power supply composed of a series-parallel resonant compensation circuit and a full-bridge inverter is also designed to convert the power from stationary side to the rotary ultrasonic transducer (UST) through the coreless concentric transformer. A primary-side controller based on fed back primary-side current is also proposed for output voltage control. Therefore, there are only the secondary winding and the parallel compensation capacitor required to be mounted on to the spindle. From the experimental results, it can be seen that the proposed power supply can provide a stable AC power with 25 kHz/70 V to the ultrasonic transducer. The efficiency of the proposed power supply is up to 90{\%} and the efficiency difference between stationary and rotary operations is only about 2{\%}.",
author = "Chen, {Tsair Rong} and Chen, {Chun Ming} and Chen, {Po Hsuan} and Yu-Lin Juan and Lee, {Yi Lung} and Chang, {Hui Mei}",
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Coreless inductive power supply for ultrasonic transducer on machine tool. / Chen, Tsair Rong; Chen, Chun Ming; Chen, Po Hsuan; Juan, Yu-Lin; Lee, Yi Lung; Chang, Hui Mei.

In: IEICE Electronics Express, Vol. 15, No. 20, 20180833, 25.10.2018.

Research output: Contribution to journalLetter

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T1 - Coreless inductive power supply for ultrasonic transducer on machine tool

AU - Chen, Tsair Rong

AU - Chen, Chun Ming

AU - Chen, Po Hsuan

AU - Juan, Yu-Lin

AU - Lee, Yi Lung

AU - Chang, Hui Mei

PY - 2018/10/25

Y1 - 2018/10/25

N2 - An inductive power supply with concentric coreless transformer is proposed for the ultrasonic transducer on machine tools. The concentric coreless transformer is designed not to increase mounting weight onto the spindle and transfer power to the ultrasonic transducer without contact losses. A switching power supply composed of a series-parallel resonant compensation circuit and a full-bridge inverter is also designed to convert the power from stationary side to the rotary ultrasonic transducer (UST) through the coreless concentric transformer. A primary-side controller based on fed back primary-side current is also proposed for output voltage control. Therefore, there are only the secondary winding and the parallel compensation capacitor required to be mounted on to the spindle. From the experimental results, it can be seen that the proposed power supply can provide a stable AC power with 25 kHz/70 V to the ultrasonic transducer. The efficiency of the proposed power supply is up to 90% and the efficiency difference between stationary and rotary operations is only about 2%.

AB - An inductive power supply with concentric coreless transformer is proposed for the ultrasonic transducer on machine tools. The concentric coreless transformer is designed not to increase mounting weight onto the spindle and transfer power to the ultrasonic transducer without contact losses. A switching power supply composed of a series-parallel resonant compensation circuit and a full-bridge inverter is also designed to convert the power from stationary side to the rotary ultrasonic transducer (UST) through the coreless concentric transformer. A primary-side controller based on fed back primary-side current is also proposed for output voltage control. Therefore, there are only the secondary winding and the parallel compensation capacitor required to be mounted on to the spindle. From the experimental results, it can be seen that the proposed power supply can provide a stable AC power with 25 kHz/70 V to the ultrasonic transducer. The efficiency of the proposed power supply is up to 90% and the efficiency difference between stationary and rotary operations is only about 2%.

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