Inductive wireless data connection
First Claim
1. An inductive electrical system, comprising;
- a first primary inductive connector that provides power at a power frequency;
a first secondary inductive connector that receives said power from said first primary inductive connector;
first feedback means for monitoring a level of said power and generating a first feedback signal that is a function of said power level and which is transmitted from said secondary inductive connector to said primary inductive connector; and
,power varying means for receiving said first feedback signal and varying said power level in response to said first feedback signal.
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Accused Products
Abstract
A system that allows inductive connectors to be electrically coupled without having to mechanical align the same. The connectors have a primary coil coupled to a secondary coil. The primary coil transmits either power or digital signals to the secondary coil. The power induced onto the secondary coil is a function of the distance between coils. The farther apart the coils are, the less power is transmitted to the secondary coil. To insure that the proper level of power is received by the secondary coil, a feedback circuit is incorporated to vary the output of power on the primary coil as a function of the voltage induced onto the secondary connectors. If connectors are spaced apart beyond a predetermined distance, the feedback system increases the power on the primary coil.
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Citations
19 Claims
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1. An inductive electrical system, comprising;
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a first primary inductive connector that provides power at a power frequency; a first secondary inductive connector that receives said power from said first primary inductive connector; first feedback means for monitoring a level of said power and generating a first feedback signal that is a function of said power level and which is transmitted from said secondary inductive connector to said primary inductive connector; and
,power varying means for receiving said first feedback signal and varying said power level in response to said first feedback signal. - View Dependent Claims (2, 3, 4, 5)
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6. An inductive electrical system, comprising:
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a first primary inductive connector that provides a first signal at a frequency between 1 and 100 megahertz; a first secondary inductive connector that receives said first signal from said first primary inductive connector; and
,first feedback means for monitoring a level of said first signal and generating a first feedback signal that is a function of said first signal level and which is transmitted from said secondary inductive connector to said primary inductive connector; and
,power varying means for receiving said first feedback signal and varying said first signal level in response to said first feedback signal. - View Dependent Claims (7, 8)
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9. A system comprising:
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a first primary inductive connector that provides power at a power frequency;
a secondary primary inductive connector that provides a first signal at a first signal frequency and power, said first signal frequency being greater than said power frequency;a first secondary inductive connector that receives said power from said first primary inductive connector; a second secondary inductive connector that receives said first signal from said secondary primary inductive connector at a first signal voltage; at least one high pass filter operatively connected to said second inductive connectors to filter out said power frequency; first feedback means for monitoring a level of said power and generating a first feedback signal that is a function of said power level and which is transmitted from said first secondary inductive connector to said first primary inductive connector; first power varying means for receiving said first feedback signal and varying said power level in response to said first feedback signal; second feedback means for monitoring a level of said first signal and generating a second feedback signal that is a function of said first signal level and which is transmitted from said secondary inductive connector to said second primary inductive connector; and second power varying means for receiving said second feedback signal and varying said first signal level in response to said second feedback signal. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification