Controlling a contactless energy transmission by means of a characteristic of a resonant circuit
First Claim
1. A circuit for transmitting an input voltage from an electrical energy source in a stator to a load within a device movable relative to the stator, the circuit comprising:
- an actuating element configured to convert an input voltage into a transmission voltage;
a resonant circuit configured to receive the transmission voltage, wherein the resonant circuit includes a capacitance and a primary winding of a transformer; and
a memory configured to store a plurality of control characteristic values based on a measurement of transmission ratios of the resonant circuit,wherein the transformer comprises the primary winding and a secondary winding, wherein the primary winding is configured to transmit the transmission voltage to the secondary winding and the secondary winding is configured to deliver the received transmission voltage as an output voltage to the load, andwherein the actuating element is configured to adjust the frequency of the transmission voltage based on the plurality of control characteristic values such that the transmission ratio of the resonant circuit remains essentially constant between the transmission voltage and the output voltage for a predetermined load range of the load.
3 Assignments
0 Petitions
Accused Products
Abstract
The embodiments relate to a circuit for transmitting an input voltage from an electrical energy source in a stator to a load within a device movable relative to the stator including an control element for converting an input voltage into a transmission voltage, a resonant circuit for receiving the transmission voltage, wherein the resonant circuit contains a capacitor and a primary winding of a transformer and the transformer having the primary winding and a secondary winding, wherein the primary winding is provided for transmitting the transmission voltage to the secondary winding and the secondary winding is provided for supplying the received transmission voltage to the load.
10 Citations
28 Claims
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1. A circuit for transmitting an input voltage from an electrical energy source in a stator to a load within a device movable relative to the stator, the circuit comprising:
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an actuating element configured to convert an input voltage into a transmission voltage; a resonant circuit configured to receive the transmission voltage, wherein the resonant circuit includes a capacitance and a primary winding of a transformer; and a memory configured to store a plurality of control characteristic values based on a measurement of transmission ratios of the resonant circuit, wherein the transformer comprises the primary winding and a secondary winding, wherein the primary winding is configured to transmit the transmission voltage to the secondary winding and the secondary winding is configured to deliver the received transmission voltage as an output voltage to the load, and wherein the actuating element is configured to adjust the frequency of the transmission voltage based on the plurality of control characteristic values such that the transmission ratio of the resonant circuit remains essentially constant between the transmission voltage and the output voltage for a predetermined load range of the load. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method for transmitting an input voltage from an electrical energy source in a stator to a load within a device movable relative to the stator, the method comprising:
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converting the input voltage into a transmission voltage; receiving the transmission voltage with a resonant circuit that contains a capacitance and a primary winding of a transformer; transmitting the transmission voltage to a secondary winding of the resonant circuit; delivering the transmission voltage received by the secondary winding to the load; measuring and storing, in a memory, a control characteristics of the resonant circuit based on a transmission ratio of the resonant circuit; and adjusting the frequency of the transmission voltage based on the plurality of control characteristics including the control characteristic stored in the memory, such that the transmission ratio of the resonant circuit remains essentially constant for a predetermined range of values of a load which can be connected to the secondary winding so that the transmission ratio of the resonant circuit is independent of the load within the predetermined range of values.
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28. A tomograph for recording a spatial structure of an object, the tomograph comprising:
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an annular tunnel configured to rotate around a stator during the recording; and a load located within the annular tunnel; wherein the stator comprises; an electrical energy source; an actuating element configured to convert an input voltage into a transmission voltage, a resonant circuit configured to receive the transmission voltage, wherein the resonant circuit contains a capacitance and a primary winding of a transformer, a memory configured to store a plurality of control characteristic values based on a measurement of transmission ratios of the resonant circuit; and wherein the transformer comprises the primary winding and a secondary winding, wherein the primary winding is configured to transmit the transmission voltage to the secondary winding and the secondary winding is configured to deliver the received transmission voltage as an output voltage to the load, wherein the actuating element is configured to adjust the frequency of the transmission voltage based on the plurality of control characteristic values in such a manner that the transmission ratio of the resonant circuit remains essentially constant between the transmission voltage and the output voltage for a predetermined load range of the load.
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Specification