Contactless power transfer system
AssigneesNational University Corporation Saitama University, Technova Inc.
InventorsShigeru Abe, Tomio Yasuda, Ryouichi Yamanouchi, Akira Suzuki
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Abstract
A half-bridge inverter is used for a high frequency alternating current power supply to be connected to a primary side of a contactless power transformer, and a voltage-doubler rectifier is used to convert a secondary-side alternating current output of the contactless power transformer into a direct current.
Claims11
A contactless power transfer system in which a high frequency alternating current power supply is connected to a primary side of a contactless power transformer and a rectifier which converts a secondary-side alternating current output into a direct current is connected to a secondary side of the contactless power transformer,
- wherein the high frequency alternating current power supply is formed of a half-bridge inverter and the half-bridge inverter is connected to the primary side of the contactless power transformer through a series capacitor,
- the rectifier is formed of a voltage-doubler rectifier and the voltage-doubler rectifier is connected to the secondary side of the contactless power transformer through a parallel capacitor,
- the voltage-doubler rectifier includes:
- a capacitor arm in which two capacitors C1 and C2 are connected in series,
- a first diode D1 which is inserted between one end of the capacitor arm and one end of a secondary-side circuit of the contactless power transformer so as to make the capacitor arm the forward side, and
- a second diode D2 which is inserted between another end of the capacitor arm and the one end of the secondary-side circuit so as to make the capacitor arm the reverse direction side, and
- a central point of the capacitor arm is connected to another end of the secondary-side circuit.
(canceled)
Dependencies are inferred from the claim text.