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IEEE Power Electronics Letters

Issue 3 • Date Sept. 2004

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Displaying Results 1 - 15 of 15
  • Table of contents

    Publication Year: 2004, Page(s): c1
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  • IEEE Power Electronics Letters publication information

    Publication Year: 2004, Page(s): c2
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  • Online grid measurement and ENS detection for PV inverter running on highly inductive grid

    Publication Year: 2004, Page(s):77 - 82
    Cited by:  Papers (40)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB) | HTML iconHTML

    Photovoltaic (PV) and other sources of renewable energy are being used increasingly in grid-connected systems, for which stronger power quality requirements are being issued. Continuous grid monitoring should be considered so as to provide safe connections and disconnections from the grid. This letter gives an overview of the methods used for online grid measurement with PV inverters. Emphasis is ... View full abstract»

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  • Generalized analysis of current ripple in a pulsewidth modulation H-bridge converter with unipolar-bipolar switching

    Publication Year: 2004, Page(s):83 - 86
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB) | HTML iconHTML

    The aim of this letter is to describe a generalized analysis of the current ripple occurring in an H-bridge with pulsewidth modulation (PWM) technique. The general equation of the current ripple is obtained. By means of this equation, it is shown that the two strategies commonly used for the bridge control (unipolar and bipolar) are two limit cases of a general method. The control condition with m... View full abstract»

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  • Self-oscillating dimmable electronic ballast for fluorescent lamps

    Publication Year: 2004, Page(s):87 - 91
    Cited by:  Papers (16)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB) | HTML iconHTML

    This letter presents a low-cost solution for converting the popularly adopted nondimmable electronic ballast circuit for fluorescent lamps with self-oscillating series resonant inverter into a dimmable one. The dimming function is achieved by increasing the switching frequency of the inverter from the natural frequency of the resonant tank, so that less energy is coupled to the lamp. Control of th... View full abstract»

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  • A lossless active clamping circuit for current doubler topologies

    Publication Year: 2004, Page(s):92 - 95
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (264 KB) | HTML iconHTML

    This letter presents a new lossless clamping circuit on the secondary side for DC-DC converters with a current-doubler structure. This circuit reduces ringing on secondary-side rectifiers due to leakage inductance. The ringing loss is recovered to the load. As a result, efficiency is improved, and the voltage stress on secondary-side rectifiers is reduced significantly. These improvements allow DC... View full abstract»

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  • Low-input-voltage, low-power boost converter design issues

    Publication Year: 2004, Page(s):96 - 99
    Cited by:  Papers (41)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (256 KB) | HTML iconHTML

    Issues associated with boost converter design and performance are investigated when a low input voltage is used. Low-input-voltage sources include single fuel cells, single solar cells, and thermoelectric devices. The primary context is interfacing single micro fuel cells to portable electronic loads, such as mobile phones. Efficiency and circuit startup are the two most difficult issues for a low... View full abstract»

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  • Online calibration of MOSFET on-state resistance for precise current sensing

    Publication Year: 2004, Page(s):100 - 103
    Cited by:  Papers (38)  |  Patents (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (168 KB) | HTML iconHTML

    An approach for online current sensing calibration is presented where an auxiliary switch and a precision sense resistor are connected in parallel with a main power switch to achieve accuracy comparable to the sense resistor method, together with the advantage of essentially no additional power loss. The proposed current-sensing circuit and the calibration methods are particularly well suited for ... View full abstract»

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  • Avalanche behavior of low-voltage power MOSFETs

    Publication Year: 2004, Page(s):104 - 107
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (224 KB) | HTML iconHTML

    This letter addresses the behavior of low voltage power MOSFETs under avalanche, with a paralleling point of view. It is shown that during avalanche, up-to-date technology MOSFET transistors exhibit a resistance far in excess of their on-state resistance (RDSon). A novel test setup is proposed to measure "avalanche" resistance. A simple model of breakdown voltage is then proposed. It be... View full abstract»

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  • Correction to "Output Voltage Distortion Characterization in Multilevel PWM Converters"

    Publication Year: 2004, Page(s): 108
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  • IEEE Power Electronics Letters Information for authors

    Publication Year: 2004, Page(s):109 - 110
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    Publication Year: 2004, Page(s): 111
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    Publication Year: 2004, Page(s): 112
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  • IEEE Power Electronics Society Information

    Publication Year: 2004, Page(s): c3
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  • IEEE Power Electronics Letters blank page

    Publication Year: 2004, Page(s): c4
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