LLC and LCC Analysis and Comparison of Resonant Converters

Zheng, Jiaqiang; Lu, Shujing; Li, Jiaqi

doi:10.1109/yac51587.2020.9337641

Cited by 8 publications

(3 citation statements)

References 23 publications

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“…An LLC resonant converter capable of achieving high efficiency, has been widely used. However, designing an LLC converter with high efficiency for dynamic loads requiring high voltage is difficult as discussed in [44], [45]. (For high voltage applications, high step-up transformers are essential.…”

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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“…LLC resonant converters offer a very efficient solution for induction heating. As proven by studies [12,13,14]. These are an electronic circuits that exploit resonance in series or parallel configurations to reduce electrical and thermal stresses on switches, minimize harmonics and limit switching losses.…”

Section: Introductionmentioning

confidence: 99%

Power Supplies Based Full-Bridge LLC Resonant Converter Performance for Ih Applications

HOUAM,

DAOUADI,

AOULMI

et al. 2023

MINAR Journal

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This paper describes the analysis and performance of a full-bridge LLC resonant converter based on power supplies for IH applications. The analysis contains five components: half bridge inverter, resonant tank, high frequency transformer, rectifier and coil. The switching bridge generates a square waveform to excite the LLC resonant tank, which will produce a resonant sinusoidal current which is transferred to the secondary of the converter through a high-frequency transformer. As it scales the voltage up or down according to the output requirements. The load represented by the equivalent circuit of the coil and work-piece is fed by the current transformed by the rectifiers. Considering that load parameters and resonant frequency vary greatly in all phases of system operation, this paper provides improved knowledge of output power control for high temperature applications. The validity of the analyzed converter parameters had been simulated and tested using MATLAB-SIMULINK software. The results of testing demonstrated that the proposed scheme and assembly has good efficiency, and it is well suited for magnetic induction heating systems

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“…while [13] the proposed converter will have the ability to respond to the load changes by varying the switching frequency to the value that fulfils the requirement. In the study [14] they have found that LLC resonant structure [15] is suitable for working in low-voltage and high-current pattern whereas LCC is suitable for high voltage and low-current pattern.…”

Section: Introductionmentioning

confidence: 99%

Efficiency Considerations of LLC Resonant Converter for Induction Heating Application

Houam¹,

Zaamouche²,

Daouadi³

et al. 2022

EJEE

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Due to the high efficiency, high power density and low EMI provided by the LLc resonant converter, it has been widely used by researchers in many fields such as induction heating (IH). This converter is based on a resonant circuit consisting of a capacitor (Cr) and two inductors Lr, Lm operating in wide output load regulating ranges for the purpose of achieving good efficiency for very high power systems using a high operating frequency. This paper aims to present a half-bridge LLC resonant converter based on power supplies for IH applications. The analysis contains five components: half bridge inverter, resonant tank, high frequency transformer, rectifier and coil. The switching bridge generates a square waveform to excite the LLC resonant tank, which will produce a resonant sinusoidal current which is transferred to the secondary of the converter through a high-frequency transformer. as it scales the voltage up or down according to the output requirements. The load represented by the equivalent circuit of the coil and work-piece is fed by the current transformed by the rectifiers. This paper provides an improved knowledge of the control of the output power for high-temperature applications through numerical simulation Considering that the load parameters and resonant frequency vary substantially throughout the system operation. The results of testing demonstrated that the proposed scheme and assembly has good efficiency, and it is well suited for magnetic induction heating systems.

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LLC and LCC Analysis and Comparison of Resonant Converters

Cited by 8 publications

References 23 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

Power Supplies Based Full-Bridge LLC Resonant Converter Performance for Ih Applications

Efficiency Considerations of LLC Resonant Converter for Induction Heating Application

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