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AC-to-DC converters based on one-cycle control exhibit instability in current control at light load conditions as well as when they are operating in the inverting mode. In this paper, a modified one-cycle controller for bidirectional AC-to-DC converter is proposed. A fictitious current component in phase with the utility voltage is synthesized. The sum of this current component and the actual load...
Pulse power supplies (PPS) are used in several applications like food processing, plasma operation, water sterilization etc. Most of the existing topologies of PPS suffer from drawbacks such as requirement of high voltage DC power supply, series operation of switching devices and use of a pulse transformer. In this paper, an improved PPS configuration, based on the combination of an array of boost...
A new three-phase, three-level (TPTL) DC-DC phase shift PWM converter is proposed for high power and high input voltage applications. Output voltage is controlled by incorporating phase shift PWM. Clocked gate signals of each leg are phase shifted by 2pi/3 from each other. Major features of the converter include: 1) in each leg the outer two switches are turned on and off as ZVS. 2) inner two switches...
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