Study of topologies for high-current bipolar magnet power supplies

Two new topologies for high-current bipolar correction-magnet power supplies are presented. They are developed from the popular full-bridge zero-voltage-switched PWM DC-DC converter. Both topologies have two distinct modes of operation. At light loads, the load current is controlled by the secondary...

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Main Authors: Espinosa, P., Huber, L., Lee, F.C., Tabisz, W.A.
Format: Conference Proceeding
Language:English
Subjects:
DC-DC power converters
Lighting control
Magnetic separation
Power supplies
Pulse width modulation
Pulse width modulation converters
Pulse width modulation inverters
Rectifiers
Regulators
Topology
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creator Espinosa, P.
Huber, L.
Lee, F.C.
Tabisz, W.A.
description Two new topologies for high-current bipolar correction-magnet power supplies are presented. They are developed from the popular full-bridge zero-voltage-switched PWM DC-DC converter. Both topologies have two distinct modes of operation. At light loads, the load current is controlled by the secondary side rectifier. At heavy loads, the magnitude and the polarity of the load current are separately controlled by the PWM inverter and the rectifier, respectively. The first topology has only a switching regulator. The second topology is a hybrid concept that combines a switching power supply and a linear regulator. The new topologies have higher efficiency than the existing switched-mode configurations, low-noise comparable to the conventional linear power supplies, and smooth zero-crossing of the load current.< >
doi_str_mv 10.1109/APEC.1994.316306
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source IEEE Electronic Library (IEL) Conference Proceedings
subjects DC-DC power converters
Lighting control
Magnetic separation
Power supplies
Pulse width modulation
Pulse width modulation converters
Pulse width modulation inverters
Rectifiers
Regulators
Topology
title Study of topologies for high-current bipolar magnet power supplies
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