Inductive power supply, remote device powered by inductive power supply and method for operating same
First Claim
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1. An inductive power supply comprising:
- a switch operating at a frequency;
a primary energized by the switch;
a primary transceiver for receiving frequency change information from a remote device; and
a controller for changing the frequency in response to the frequency change information.
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Abstract
An inductive power supply includes a transceiver for sending information between the remote device and the inductive power supply. The remote device determines the actual voltage and then sends a command to the inductive power supply to change the operating frequency if the actual voltage is different from the desired voltage. In order to determine the actual voltage, the remote device determines a peak voltage and then applies a correction factor.
90 Citations
27 Claims
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1. An inductive power supply comprising:
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a switch operating at a frequency;
a primary energized by the switch;
a primary transceiver for receiving frequency change information from a remote device; and
a controller for changing the frequency in response to the frequency change information. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A remote device capable of energization by an inductive power supply comprising:
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a secondary;
a load;
a secondary controller for determining the actual voltage across the load; and
a secondary transceiver for sending frequency adjustment instructions to the inductive power supply. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. A method of operating an inductive power supply comprising:
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energizing a primary at an initial frequency;
polling a remote device; and
if there is no response from the remote device, turning off the primary. - View Dependent Claims (16, 17, 18, 19)
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20. A method of operating a remote device, the remote device having a secondary for receiving power at an operating frequency from an inductive power supply and powering a load, comprising:
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comparing a desired voltage with an actual voltage; and
sending an instruction to the inductive power supply to correct the actual voltage. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
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Specification