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US 8,301,080 B2Granted
Adaptive inductive power supply with communication
AssigneeAccess Business Group International LLC
InventorDavid W. Baarman
Life of this patent
Estimating the term…
Abstract
An adaptive inductive ballast is provided with the capability to communicate with a remote device powered by the ballast. To improve the operation of the ballast, the ballast changes its operating characteristics based upon information received from the remote device. Further, the ballast may provide a path for the remote device to communicate with device other than the adaptive inductive ballast.
Claims17
A method for controlling operation of an inductive power supply system, comprising the steps of:
- establishing an inductive coupling between the inductive power supply and a remote device having a secondary inductor in electrical communication with a load, the inductive power supply having a controller and a tank circuit;
- receiving information from the remote device;
- adaptively adjusting a variable impedance element of the inductive power supply when the remote device is inductively coupled with the inductive power supply;
- adjusting an operating frequency of the inductive power supply, wherein adjusting the operating frequency of the inductive power supply includes adjusting a drive circuit with the controller;
- detecting an operating parameter of the tank circuit;
- and
- determining whether an operational parameter of the tank circuit in the inductive power supply is within a nominal range, wherein said adjusting is in response to determining that said operational parameter is not within the nominal range.
4 more elements
An inductive power supply for supplying power to a remote device, said inductive power supply comprising:
- a primary configured to transfer power to said remote device
- a receiver for receiving information from said remote device;
- a controller in communication with said primary, said controller programmed to:
- adaptively adjust a variable impedance element of said inductive power supply when said remote device is inductively coupled with said inductive power supply;
- adjust an operating frequency of said inductive power supply;
- detect an operating parameter of said primary;
- and
- determine whether an operational parameter of said primary in said inductive power supply is within a nominal range, wherein said operating frequency is adjusted in response to a determination that said operational parameter is not within said nominal range.
5 more elements
Dependencies are inferred from the claim text.