Inductively powered apparatus
First Claim
1. An inductive power supply system comprising:
- a power supply circuit having a primary, said power supply circuit applying power to said primary to generate a magnetic field;
a plurality of secondary devices, each secondary device including a secondary circuit having a secondary and a load; and
and a bowl-shaped receptacle disposed adjacent to said primary, said bowl-shaped receptacle capable of receiving one or more of said plurality of said secondary devices, wherein said secondary is disposed at a substantially random location and a substantially random orientation within said magnetic field, said magnetic field inducing a current in said secondary to apply power to said load.
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Accused Products
Abstract
An inductive power supply system for providing power to one or more inductively powered devices. The system includes a mechanism for varying the physical distance or the respective orientation between the primary coil and secondary coil to control the amount of power supplied to the inductively powered device. In another aspect, the present invention is directed to an inductive power supply system having a primary coil and a receptacle disposed within the magnetic field generated by the primary coil. One or more inductively powered devices are placed randomly within the receptacle to receive power inductively from the primary coil. The power supply circuit includes circuitry for adjusting the power supplied to the primary coil to optimize operation based on the position and cumulative characteristics of the inductively powered device(s) disposed within the receptacle.
399 Citations
9 Claims
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1. An inductive power supply system comprising:
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a power supply circuit having a primary, said power supply circuit applying power to said primary to generate a magnetic field; a plurality of secondary devices, each secondary device including a secondary circuit having a secondary and a load; and and a bowl-shaped receptacle disposed adjacent to said primary, said bowl-shaped receptacle capable of receiving one or more of said plurality of said secondary devices, wherein said secondary is disposed at a substantially random location and a substantially random orientation within said magnetic field, said magnetic field inducing a current in said secondary to apply power to said load. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An inductive power supply system comprising:
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a power supply circuit for supplying power to a primary coil, whereby said primary coil generates a magnetic field; a plurality of inductively powered devices; and a receptacle disposed adjacent said primary coil, said receptacle receiving said plurality of inductively powered devices randomly within said magnetic field; wherein said power supply circuit includes a means for monitoring a characteristic of said power indicative of a cumulative load characteristic of said plurality of inductively powered devices and a means for varying a characteristic of said power based on said monitored characteristic, whereby said power supply circuit varies said power applied to said primary as a function of said plurality of inductively powered devices to improve efficiency of operation.
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Specification