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US 7,323,964 B1Granted
Non-contact power system with load and gap detection
AssigneeNational Central University
InventorsKuo-Kai Shyu, Ko-Wen Jwo, Chih-Hung Lo
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Abstract
A non-contact power system transfers power and signals simultaneously. The signals control the non-contact power system. And an operational frequency is operated on a resonant frequency so that there is no voltage alternating on power switch and power loss is reduced.
Claims20
A non-contact power system with load and gap detection, comprising:
- a non-contact transformer, said non-contact transformer comprising a first core and a second core, said first core comprising one energy coil and two signal coil, said second core comprising one energy coil and two signal coil;
- a primary device, said primary device being connected with said first core, said primary device comprising an input stage module, a power stage module and a feed-back control module;
- and
- a secondary device, said secondary device being connected with said second core, said secondary device comprising an output stage module,
- wherein said two signal coils of said second core have a reverse winding direction to said energy coil of said second core.
2 more elements
A non-contact power system with load and gap detection, comprising:
- a non-contact transformer, said non-contact transformer comprising a first core and a second core, said first core comprising one energy coil and two signal coil, said second core comprising one energy coil and two signal coil;
- a primary device, said primary device being connected with said first core, said primary device comprising an input stage module, a power stage module and a feed-back control module;
- and
- a secondary device, said secondary device being connected with said second core, said secondary device comprising an output stage module,
- wherein one of said signal coils at an end of said first core has the same winding direction as said energy coil of said first core, and
- wherein the other one of said signal coils at the other end of said first core has a reverse winding direction to said energy coil of said first core.
3 more elements
Dependencies are inferred from the claim text.