Modular Design of a Bipolar-Pulse-Power-Supply-Based <i>LCC</i> Resonant Converter for Strategic Mineral Exploration

Bae, Jung-Soo; Kim, Jong-Soo; Kim, Hyoung-Suk; Yu, Chan-Hun; Jang, Sung-Roc

doi:10.1109/tie.2018.2877086

Cited by 20 publications

(4 citation statements)

References 12 publications

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“…However, parasitic components of high step-up transformers cause difficulties in designing the LLC resonant converter and its light load operation.) Therefore, an LCC resonant converter utilizing parasitic components as a resonant tank is employed instead of the LLC converter In addition, by shaping resonant current as a trapezoid in the LCC, the RMS value of the resonant current decreased, which contributes to reducing conduction losses of the entire circuit [46], [47]. With mentioned advantages of the LCC resonant converter, the developed CPS achieved a maximum efficiency of 96% and the output voltage ripple of 0.4%.…”

Section: Design and Implementation Of Power Suppliesmentioning

confidence: 99%

Suppression of a Long-Term Instability of a Commercial Magnetron With Low-Ripple DC Power Supply for Heater

Kim

Jang

et al. 2022

IEEE Access

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Compact but powerful and efficient magnetrons are in service for various high-power microwave applications owing to their additional superiority of low-cost mass production. However, the magnetron's inherent instability in frequency and phase over a relatively wide spectrum limits the versatile availability of the magnetron for possible advanced applications, including a long-distance wireless power transfer system (WPTS) that employs the magnetron as a unit source of a phased array system. The authors present a methodology suppressing a long-term instability of the S-band commercial magnetron harnessed by the phase-locking-loop (PLL) injection controlling and fixing the phase and frequency of the magnetron to the extent of the precision for a WPTS. The long-term drift of the phase exactly replicating the anode voltage fluctuations is successfully suppressed by the implementation of a DC power supply to compensate the cooling effects of the heater, which contributes to extreme stabilization of the phase (peak to peak 0.2 • ) for high-power (1kW). And eligibility for the unit source of a phase-arrayed WPTS is proven by varying the output power while maintaining the phase at a constant.INDEX TERMS Magnetrons, noise, phase-locking-loop (PLL), series parallel resonant converter (SPRC), cooling effect.

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Section: Design and Implementation Of Power Suppliesmentioning

confidence: 99%

Suppression of a Long-Term Instability of a Commercial Magnetron With Low-Ripple DC Power Supply for Heater

Kim

Jang

et al. 2022

IEEE Access

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“…So far, LCC resonant converters are often employed in high voltage and low current working conditions [11]. At the same time, the increasing requirements for the wide variation in output voltage and load conditions have also come into being in industrial applications [20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

“…For LCC resonant converters, series inductance and parallel capacitance are parasitised into the transformer so the volume of the whole power supply system can be reduced significantly [11]. The rapid dynamic response and inherent short circuit protection can be obtained in LCC resonant converters [12].…”

Section: Introductionmentioning

confidence: 99%

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Quasi‐fixed frequency controlled phase modulation LCC resonant converter with a wide power range

Feng

Kong

2023

IET Circuits, Devices & Syst

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The research on LCC resonant converters has become increasingly popular since the application of the zero‐voltage switching can improve the transmission ability and ensure the high efficiency of the power supplies. In this article, a novel quasi‐definite frequency‐based modulation control method to extend the excellent properties of LCC resonators to a wide range of powers is introduced. By adjusting the frequency and phase in a bidirectional manner in accordance with the design law, excellent output performance can be maintained over a wide power range, which is overcome by adjusting the switching frequency and phase separately in conventional modulation methods. In order to justify the effectiveness of the proposed modulation control method, a simulation and experimental platform of LCC resonators using the proposed modulation method was performed. Simulation and experimental results can effectively demonstrate the performance of the proposed modulation control method for a variety of input voltage and output power cases, and the efficiency of the LCC converters will be improved in higher power systems.

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Development of high voltage DC power supplies for electrostatic precipitator

Kim¹,

Son²,

Kwon³

et al. 2023

J. Korean Phys. Soc.

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Modular Design of a Bipolar-Pulse-Power-Supply-Based LCC Resonant Converter for Strategic Mineral Exploration

Cited by 20 publications

References 12 publications

Suppression of a Long-Term Instability of a Commercial Magnetron With Low-Ripple DC Power Supply for Heater

Suppression of a Long-Term Instability of a Commercial Magnetron With Low-Ripple DC Power Supply for Heater

Quasi‐fixed frequency controlled phase modulation LCC resonant converter with a wide power range

Development of high voltage DC power supplies for electrostatic precipitator

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