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Proceedings ArticleDOI

A high power factor tuned Class D converter

H. Seidel
- pp 1038-1042
TLDR
An approach for achieving high power factor in a zero-current/zero-voltage-switching tuned converter is presented in this article, where a tuned 90 degrees C phase shift section at the switching frequency fundamental of the Class D converter is used to render the power line into a current source.
Abstract
An approach for achieving high power factor in a zero-current/zero-voltage-switching tuned converter is presented. A tuned 90 degrees C phase shift section at the switching frequency fundamental of the Class D converter is used to render the power line into a current source. As a result, rectification occurs over the full AC cycle, drawing a constant line current over each half cycle. A 93%-power-factor, 1700 W, 300 kHz converter is discussed to demonstrate practicability. >

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Citations
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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

Topologies for three-element resonant converters

TL;DR: In this paper, an orderly search procedure that exposes a large number of new topologies, many of which are resonant and have useful properties, is presented, and an orderly topology search procedure is presented.
Proceedings ArticleDOI

Topologies for three element resonant converters

R.P. Severns
TL;DR: In this article, a procedure for an orderly examination of multielement resonant topologies has been demonstrated, and a large number of new three-element topologies have been exposed.
Journal ArticleDOI

Characteristics and Design of an Asymmetrical Duty-Cycle-Controlled LCL-T Resonant Converter

TL;DR: In this article, the characteristics of an asymmetrical duty cycle (ADC) controlled LCL-T resonant converter operating at the resonant frequency are studied by solving the state-space model of the converter.
Journal ArticleDOI

Operation of the LCC-type parallel resonant converter as a low harmonic rectifier

TL;DR: A single-phase high-frequency transformer isolated single-stage AC-to-DC controlled rectifier with low line current harmonic distortion using a variable-frequency controlled LCC-type (or series-parallel) resonant power converter (SPRC) is presented.
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