Patent
Inductive power distribution system
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TLDR
In this paper, a contactless inductive power distribution system operating at 10 KHz has a self tuning resonant power supply connected to a resonant primary conductive path (10110, 10111) comprising a pair of parallel litz wire conductors, each encapsulated within an insulated sheath and supported on a structural monorail beam.Abstract:
A contactless inductive power distribution system operating at 10 KHz has a self tuning resonant power supply connected to a resonant primary conductive path (10110, 10111) comprising a pair of parallel litz wire conductors (10110, 10111) each encapsulated within an insulated sheath and supported on a structural monorail beam (10101) on which a plurality of electric vehicles can run. Each vehicle has an electric motor (not shown) capable of deriving power from a resonant pick-up coil (10115) wound on a ferrite core (10102) mounted on the vehicle in close proximity to the primary conductors (10110, 10111). Each vehicle also has switching means (10116) capable of preventing a lightly loaded vehicle from presenting a reduced load to the resonant primary. As shown, this comprises an isolating coil (10116) having a switch (not shown) to switch the coil between an open circuit and a short circuit, so that when the switch is switched from one state to another state the power coupled between the primary conductive path (10110, 10111) and the pick-up coil (10115) is changed.read more
Citations
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References
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Proceedings ArticleDOI
Inductive power transfer to an electric vehicle-analytical model
TL;DR: The roadway powered electric vehicle (RPEV) system is a unique electric vehicle system that receives electric power by inductive coupling from an inductor buried beneath the road surface using the equivalent circuit model of the inductive power coupling system.
Patent
Power control system for electrically driven vehicle
TL;DR: In this article, an electrically driven vehicle having suitable batteries to drive the vehicle on conventional roads and a pickup receiver thereon for receiving power for a drive motor from a conductor embedded in a prepared roadway for driving the vehicle and for charging the batteries.
Patent
Regulator for inductively coupled power distribution system
James B. Turner,Gary W. Roth +1 more
TL;DR: A regulator circuit for use with a connectorless power supply system in which power is inductively supplied to a plurality of remote loads is described in this paper, where a sinusoidal current, at a frequency of 38 kHz, is provided by a power distribution system and circulates through a supply loop (68), which is disposed under the floor of an aircraft cabin.
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Core coupled transmitter/receiver loops for connectorless entertainment systems
James W Daniels,Carl W Erickson +1 more
TL;DR: In this article, a method and apparatus for interconnecting passenger entertainment service units to the aircraft system through connectorless inductive couplers is presented, without limitation on seat spacing or location.