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Proceedings ArticleDOI

Compact and efficient transformerless power conversion system

R. Limpaecher
- Vol. 2, pp 649-655
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TLDR
The power conversion system (PCS) developed by the author is a new technology that efficiently transforms power between AC and DC as mentioned in this paper, which is accomplished using solid state switching devices, capacitors, air-core inductors and an intelligent control system.
Abstract
The power conversion system (PCS) developed by the author is a new technology that efficiently transforms power between AC and DC. The conversion process permits the input voltage level to be stepped up or down without the use of magnetic core transformers. The transformation is accomplished using solid state switching devices, capacitors, air-core inductors and an intelligent control system. The technology is based on the property of resonance charging, thereby permitting the use of self commutating switches. The current through the switches, being sinusoidal in nature, has a low dI/dt. This permits the use of slower, less expensive thyristors, similar to those used in high voltage phase control applications. Using these components, a highly efficient inverter can be constructed for a variety of large utility applications.

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Citations
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References
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Journal ArticleDOI

A novel soft-switching full-bridge DC/DC converter: Analysis, design considerations, and experimental results at 1.5 kW, 100 kHz

TL;DR: In this article, the authors presented an improved soft-switching full-bridge converter which is especially suitable for high-power application (e.g. more than 1 kW output) because of its inherently high efficiency.
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Integrated dual charge pump power supply and RS-232 transmitter/receiver

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Journal ArticleDOI

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TL;DR: In this article, a forced commutated AC/DC converter and control strategy is proposed that is able to draw nearly sinusoidal currents at unity power factor from three-phase power lines.
Journal ArticleDOI

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TL;DR: In this paper, a charge pump circuit and associated method is provided for outputting either a positive or a negative output voltage, or both, which each may have a predetermined magnitude which is an integer multiple of the magnitude of a power supply voltage used to power the circuit.