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Requirements for a Transformerless Power Conditioning Subsystem
IEEE Power Engineering Review, 1984The interconnection of a photovoltaic generator to a utility can be made more cost effective by eliminating the need for an isolation or dedicated utility transformer.
J. Klein +3 more
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Active common-mode filter for photovoltaic transformerless inverters
IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society, 2012In the recent years the research on photovoltaic converters has been focused on topologies that do not feature a line frequency transformer, in order to reduce costs and successfully increase the overall efficiency. The main problem in removing the galvanic isolation is that the parasitic capacitance present between the cell and the metal frame ...
Giampaolo Buticchi +3 more
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A transformerless modulator suitable for integrated circuits
Microelectronics Reliability, 1969Abstract The transformerless modulator considered in this report is built in a suitable form for integrated circuitry. Its operation is described and approximate expressions given for the amplifications in the carrier and signal paths. Measurements have been conducted in such a manner as to enable a convenient comparison of this circuit with a diode ...
S.M. Bozic, A.M. Yousif
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New Transformerless Vertical Deflection Systems
IEEE Transactions on Broadcast and Television Receivers, 1970A current drive transformerless vertical deflection system is presented. The system employes a constant current source and variable current source with a complementary current amplifier output to function as a bidirectional current source.
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ON THE EQUALIZATION OF THE TRANSFORMERLESS SEISMIC STREAMER RESPONSE*
Geophysical Prospecting, 1984AbstractThe use of very long streamers in marine seismic surveys makes the response offset dependent. Line equalization networks are used to balance this effect.In this paper the response of the transformerless streamer system driving a charge amplifier is analyzed.
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On the Transformerless Full-Wave Modulator-Demodulator
IEEE Journal of Solid-State Circuits, 1968A transformerless modulator-demodulator was described in a previous correspondence. Transistor switches were used at the inverting and noninverting inputs of an operational amplifier. This correspondence concerns improvements that may be realized by adding a second operational amplifier and moving the transistor switches to the inverting and ...
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Decoding and Synthesizing Transformerless PWM Converters
IEEE Transactions on Power Electronics, 2016Pulse-width-modulated (PWM) converters have been widely applied for power processing, and they are typically the stems of other types of converters, such as quasi-resonant, Z -source, and switched-inductor hybrid converters. Development of PWM converters has been spanning over a century, starting from the buck converter.
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2010 International Conference on Industrial Electronics, Control and Robotics, 2010
A Das +5 more
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A Das +5 more
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Integrated Transformerless EV Charger With Symmetrical Modulation
IEEE Transactions on Industrial Electronics, 2022Caniggia Viana +3 more
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Transformerless Inverter for Induction Heating
Journal of the Japan Institute of Power Electronics, 2019Mai Yamada +2 more
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