Journal ArticleDOI
LCL-T Resonant Converter With Clamp Diodes: A Novel Constant-Current Power Supply With Inherent Constant-Voltage Limit
TLDR
A novel LCL-T resonant converter with clamp diodes is proposed in this paper, which has built-in CC-CV characteristics and is rugged and reliable.Abstract:
The LCL-T resonant converter behaves as a constant-current (CC) source when operated at the resonant frequency. The output voltage of a CC power supply increases linearly with the load resistance. Therefore, a constant-voltage (CV) limit must be incorporated in the converter for its use in practical applications wherein the open-load condition is commonly experienced by a CC power supply, such as in an arc welding power supply. A novel LCL-T resonant converter with clamp diodes is proposed in this paper, which has built-in CC-CV characteristics. Since the CC-CV characteristics are inherent to the converter, and complex feedback control is not required, the proposed converter is rugged and reliable. The principle of operation of the converter is explained. Experimental results on a 500-W prototype are presented to demonstrate the inherent CC-CV behavior of the converter. Simple extensions of the topology featuring variable CV limits are describedread more
Citations
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References
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Journal ArticleDOI
Analysis and design of an LCL-T resonant converter as a constant-current power supply
TL;DR: The LCL-T RC as a current source offers many advantages such as easy parallel operation and low circulating currents at light load, and the leakage inductance of a transformer can be advantageously integrated into the resonant network.
Journal ArticleDOI
Analysis and design of LCL-type series resonant converter
TL;DR: It is shown that by placing the parallel inductor on the secondary-side, the parasitics of the high-frequency transformer can be used profitably and the converter has load short circuit capability.
Proceedings ArticleDOI
Design of an IGBT-based LCL-resonant inverter for high-frequency induction heating
TL;DR: In this paper, a power electronic inverter is developed for a high-frequency induction heating application, which requires up to 160 kW of power at a frequency of 100 kHz, and the circuit design, modeling and control considerations are presented.
Journal ArticleDOI
The Zero Voltage Switching Partial Series Resonant Converter
TL;DR: In this paper, a high-frequency dc-to-dc converter with two switches is presented, which is suitable for application in the kilowatt range and has zero-voltage turn-on and snubbed turn-off at reduced current.
Journal ArticleDOI
Immittance converters suitable for power electronics
Hisaichi Irie,Haruhisa Yamana +1 more
TL;DR: In this article, the authors proposed five immittance converters that consist of lumped L and C elements and show the immittance conversion characteristics at a resonant frequency, and evaluated their application to high-frequency link systems of power electronics.