Design of Ion Pump Power Supply Based on LCC Resonant Converter

Jung Soo Bae; Sung Roc Jang; Hyeong Suk Kim; Chan Hun Yu; Suk Ho Ahn

doi:10.1109/TPS.2018.2839081

Design of Ion Pump Power Supply Based on LCC Resonant Converter

Jung Soo Bae, Sung Roc Jang, Hyeong Suk Kim, Chan Hun Yu, Suk Ho Ahn

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

In this paper, the detailed design of an ion pump power supply is presented. The ion pump power supply was designed based on an LCC resonant topology with high switching frequency to take advantage of a smaller transformer for isolation. Because the proposed ion pump power supply has a 7-kV, 50-mA specification, high-voltage insulation is required. In order to secure insulation reliability, the power supply was designed with eight separate transformers that share primary turns. The spacing between the primary turns and secondary turns allows for increases in the leakage inductance and parasitic capacitance of the transformer. A compact design can be achieved using the parasitic component generated by the proposed design as the resonant parameters of the LCC resonant converter. In addition, based on a trapezoidal approximation of the LCC resonant converter, the resonant parameters are designed to have trapezoidal shapes of the resonant current in order to reduce conduction loss. Finally, the results of the experiment indicate that the developed ion pump power supply can be used effectively in high-voltage and low-current applications.

Original language	English
Article number	8401944
Pages (from-to)	3504-3511
Number of pages	8
Journal	IEEE Transactions on Plasma Science
Volume	46
Issue number	10
DOIs	https://doi.org/10.1109/TPS.2018.2839081
State	Published - Oct 2018
Externally published	Yes

Funding

Manuscript received November 30, 2017; revised March 21, 2018; accepted May 5, 2018. Date of publication July 2, 2018; date of current version October 9, 2018. This work was supported in part by the National Research Council of Science and Technology funded by the Ministry of Science and ICT through the Korea Electrotechnology Research Institute Primary Research Program under Grant 18-12-N0101-28 and in part by the National Research Foundation of Korea funded by the Ministry of Education through the Basic Science Research Program under Grant NRF-2017R1D1A1B03033192. The review of this paper was arranged by Senior Editor W. Jiang. (Corresponding author: Suk-Ho Ahn.) J.-S. Bae is with Energy Conversion Technology, University of Science and Technology, Daejeon 34113, South Korea (e-mail: [email protected]).

Keywords

High-voltage and low-current power supply
LCC resonant converter
ion pump power supply

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10.1109/TPS.2018.2839081

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title = "Design of Ion Pump Power Supply Based on LCC Resonant Converter",

abstract = "In this paper, the detailed design of an ion pump power supply is presented. The ion pump power supply was designed based on an LCC resonant topology with high switching frequency to take advantage of a smaller transformer for isolation. Because the proposed ion pump power supply has a 7-kV, 50-mA specification, high-voltage insulation is required. In order to secure insulation reliability, the power supply was designed with eight separate transformers that share primary turns. The spacing between the primary turns and secondary turns allows for increases in the leakage inductance and parasitic capacitance of the transformer. A compact design can be achieved using the parasitic component generated by the proposed design as the resonant parameters of the LCC resonant converter. In addition, based on a trapezoidal approximation of the LCC resonant converter, the resonant parameters are designed to have trapezoidal shapes of the resonant current in order to reduce conduction loss. Finally, the results of the experiment indicate that the developed ion pump power supply can be used effectively in high-voltage and low-current applications.",

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PY - 2018/10

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N2 - In this paper, the detailed design of an ion pump power supply is presented. The ion pump power supply was designed based on an LCC resonant topology with high switching frequency to take advantage of a smaller transformer for isolation. Because the proposed ion pump power supply has a 7-kV, 50-mA specification, high-voltage insulation is required. In order to secure insulation reliability, the power supply was designed with eight separate transformers that share primary turns. The spacing between the primary turns and secondary turns allows for increases in the leakage inductance and parasitic capacitance of the transformer. A compact design can be achieved using the parasitic component generated by the proposed design as the resonant parameters of the LCC resonant converter. In addition, based on a trapezoidal approximation of the LCC resonant converter, the resonant parameters are designed to have trapezoidal shapes of the resonant current in order to reduce conduction loss. Finally, the results of the experiment indicate that the developed ion pump power supply can be used effectively in high-voltage and low-current applications.

AB - In this paper, the detailed design of an ion pump power supply is presented. The ion pump power supply was designed based on an LCC resonant topology with high switching frequency to take advantage of a smaller transformer for isolation. Because the proposed ion pump power supply has a 7-kV, 50-mA specification, high-voltage insulation is required. In order to secure insulation reliability, the power supply was designed with eight separate transformers that share primary turns. The spacing between the primary turns and secondary turns allows for increases in the leakage inductance and parasitic capacitance of the transformer. A compact design can be achieved using the parasitic component generated by the proposed design as the resonant parameters of the LCC resonant converter. In addition, based on a trapezoidal approximation of the LCC resonant converter, the resonant parameters are designed to have trapezoidal shapes of the resonant current in order to reduce conduction loss. Finally, the results of the experiment indicate that the developed ion pump power supply can be used effectively in high-voltage and low-current applications.

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Design of Ion Pump Power Supply Based on LCC Resonant Converter

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