NON-CONTACT ROTARY POWER TRANSFER SYSTEM
First Claim
1. A control system for controlling a power inverter disposed on a stationary side and configured to deliver power to a first element disposed on a rotating side, the control system comprising:
- a control element disposed on the rotating side and configured to generate a timing signal for controlling the power inverter; and
a rotary transformer configured to transmit the timing signal from the rotating side to the stationary side and comprising;
a first gate drive winding disposed on the rotating side and coupled to the control element; and
a second gate drive winding disposed on the stationary side and coupled to the power inverter.
4 Assignments
0 Petitions
Accused Products
Abstract
A power delivery system includes a rotary transformer having a primary winding and a secondary winding and configured to transfer power between stationary coupling elements on a stationary side and rotational coupling elements on a rotational side. The rotational coupling elements share a central axis with the stationary coupling elements, and are adapted to rotate with respect to the stationary coupling elements. The power delivery system includes an isolation transformer that drives the primary winding of the rotary transformer, and a plurality of power inverter stages whose outputs are adapted to be summed and coupled to the rotary transformer. A plurality of output power converters receive transmitted power from the rotary transformer. A plurality of control elements, disposed on the rotating side, are configured to close a feedback loop on desired and actual performance of the output power converters, and to control the power inverter stages.
12 Citations
20 Claims
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1. A control system for controlling a power inverter disposed on a stationary side and configured to deliver power to a first element disposed on a rotating side, the control system comprising:
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a control element disposed on the rotating side and configured to generate a timing signal for controlling the power inverter; and a rotary transformer configured to transmit the timing signal from the rotating side to the stationary side and comprising; a first gate drive winding disposed on the rotating side and coupled to the control element; and a second gate drive winding disposed on the stationary side and coupled to the power inverter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A computed tomography (CT) system, comprising:
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a radiation source disposed on a rotating side of the CT system; a detector array disposed on the rotating side of the CT system; a power inverter disposed on a stationary side of the CT system and configured to inverter power generated by a power source; and a control element disposed on the rotating side and configured to generate a timing signal for controlling the power inverter. - View Dependent Claims (18, 19)
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20. A control system for controlling a power inverter disposed on a stationary side and configured to deliver power to a first element disposed on a rotating side, the control system comprising:
a control element disposed on the rotating side and configured to generate a timing signal for controlling the power inverter based upon a comparison between a desired operating parameter of the first element to an actual operating parameter of the first element, the timing signal remaining in an analog domain between the control element and the power inverter.
Specification