Thesis (Ph.D.) - University of Warwick, 1996.
|The Physical Object|
|Number of Pages||208|
The paper presents the theoretical and practical aspects of the design and construction of a series–parallel load-resonant converter, for use as a controlled current arc welding power supply. A converter with an output voltage of 25 V and output current of A operating at 85 kHz is designed and by: Series-parallel load-resonant converter for controlled-current arc welding power supply H. Polloclk J.O. Flower Indexing terms: Power supplies, Resonant converter, Arc welding supply, Power. A power supply incorporating a series-parallel load-resonant converter, capable of very efficient operation over a wide range of output power is presented. The series-parallel load-resonant converter is shown to have three pairs of resonant frequencies. Operation of the circuit at each of these resonant frequencies maintains zero current switching and high frequency operation. The paper presents the theoretical and practical aspects of the design and construction of a series-parallel load-resonant converter, for use as a controlled current are welding power supply. A converter with an output voltage of 25V and output current .
regulations. A power supply that can be packaged with an electrochemical stack could make electrochemical wastewater treatment more cost-effective and scalable. For this application, the series and series-parallel resonant converters are suitable power converter candidates. With an output current specification of A, the series-parallel resonant. The designed EDM impulse generator is a full-bridge series–parallel (LC s C p) resonant converter, shown in Fig. 1, whose switching frequency is much higher than the machining ad: Download full-size image Fig. t diagram of the EDM power supply using a full-bridge LC s C p resonant converter. power supply - has been made possible. To achieve smaller size, lighter weight and faster transient respond of power supply for arc welding, the design of switched-mode power supply with high dc-to-dc resonant converter has been proposed in this paper. In application, such as welding power supplies, the load is isolated for safety reason. This welding machine is a constant direct current power. source, created by the INVERTER technology, designed for 1~50/60Hz Single-phase supply 50 or 60 Hz. I.. Input current at the corresponding. 1. welding current I. should consult with their doctor before going near arc welding, gouging, cutting or spot welding operations.
"series-parallel" converter described in , typically used in high-voltage power supply, is derived from the previously mentioned LCC resonant inverter. Its dual configuration, the LLC inverter, generates the homonymous converter, addressed in ,  and , that will be the subject of the following discussion. 1. Introduction to resonant power conversion 2. Simple frequency-domain modeling of resonant converters with the fundamental approximation 3. The series and parallel resonant converters, and zero-voltage switching 4. Design techniques: shaping the tank characteristics to achieve desired. The series resonant converter shown in Fig. 1 is one class of dc-to-dc converters that, while quite widely used is not as well understood as the class of pulse-width-modulated converters (buck, boost, Cuk, etc.)* The state-space averaging technique [l,2,3], that has proved to be so fruitful in the analysis of pulse-width-modulated converters. load resonant high frequency inverter for induction heating super heated steamer,” Electron,vol 4, no 3, pp ,Jul  and Reddy, “Parallel resonance based current source inverter for induction heating,” European journal of .