Circuit arrangement and method of operating a circuit arrangement
First Claim
1. A circuit arrangement of an electric vehicle for inductive power transfer to the vehicle, wherein the circuit arrangement comprises an impedance and at least one rectifier for rectifying an AC voltage, wherein an AC part of the circuit arrangement comprises the impedance, wherein the rectifier connects the AC part to a DC part of the circuit arrangement, wherein the impedance is provided by an inductance and a capacitance, wherein the circuit arrangement comprises a voltage generator, wherein the voltage generator is arranged such that an output voltage of the voltage generator is fed into the AC part of the circuit arrangement, wherein the voltage generator is an inverter, wherein the inverter or an electric path comprising the inverter is connected in parallel to the rectifier or an electric path comprising the rectifier, wherein the capacitance is connected in series to the inductance, wherein the rectifier is connected in series to the capacitance, wherein the circuit arrangement further comprises at least one current control means for controlling a current flow in the AC part in order to achieve a desired power transfer, and wherein the voltage generator is used as the current control means.
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Accused Products
Abstract
The invention relates to a circuit arrangement of an electric vehicle, in particular a circuit arrangement of an electric vehicle for inductive power transfer to the vehicle, and a method of operating the named circuit arrangement. The circuit arrangement includes an impedance and at least one rectifier for rectifying an AC voltage. An AC part of the circuit arrangement includes the impedance. The rectifier connects the AC part to a DC part of the circuit arrangement. The circuit arrangement further includes at least one current control means for controlling a current flow in the AC part vehicle.
18 Citations
20 Claims
- 1. A circuit arrangement of an electric vehicle for inductive power transfer to the vehicle, wherein the circuit arrangement comprises an impedance and at least one rectifier for rectifying an AC voltage, wherein an AC part of the circuit arrangement comprises the impedance, wherein the rectifier connects the AC part to a DC part of the circuit arrangement, wherein the impedance is provided by an inductance and a capacitance, wherein the circuit arrangement comprises a voltage generator, wherein the voltage generator is arranged such that an output voltage of the voltage generator is fed into the AC part of the circuit arrangement, wherein the voltage generator is an inverter, wherein the inverter or an electric path comprising the inverter is connected in parallel to the rectifier or an electric path comprising the rectifier, wherein the capacitance is connected in series to the inductance, wherein the rectifier is connected in series to the capacitance, wherein the circuit arrangement further comprises at least one current control means for controlling a current flow in the AC part in order to achieve a desired power transfer, and wherein the voltage generator is used as the current control means.
- 8. A method of operating a circuit arrangement of an electric vehicle for inductive power transfer to the vehicle, wherein the circuit arrangement comprises an impedance and at least one rectifier for rectifying an AC voltage, wherein an AC part of the circuit arrangement comprises the impedance, wherein the rectifier connects the AC part to a DC part of the circuit arrangement, wherein the impedance is provided by an inductance and a capacitance, wherein the circuit arrangement comprises a voltage generator, wherein the voltage generator is arranged such that an output voltage of the voltage generator is fed into the AC part of the circuit arrangement, wherein the voltage generator is an inverter, wherein the inverter or an electric path comprising the inverter is connected in parallel to the rectifier or an electric path comprising the rectifier, wherein the capacitance is connected in series to the inductance, wherein the rectifier is connected in series to the capacitance, wherein at least one current control means for controlling a current flow in the AC part is controlled such that a desired power transfer is achieved, and wherein the voltage generator is used as the current control means.
- 17. A method of manufacturing a circuit arrangement, in particular a circuit arrangement of an electric vehicle for an inductive power transfer to the vehicle, wherein the circuit arrangement comprises an impedance and at least one rectifier for rectifying an AC voltage, wherein an AC part of the circuit arrangement comprises the impedance, wherein the rectifier connects the AC part to a DC part of the circuit arrangement, wherein the impedance is provided by an inductance and a capacitance, wherein the circuit arrangement comprises a voltage generator, wherein the voltage generator is arranged such that an output voltage of the voltage generator is fed into the AC part of the circuit arrangement, wherein the voltage generator is an inverter, wherein the inverter or an electric path comprising the inverter is connected in parallel to the rectifier or an electric path comprising the rectifier, wherein the capacitance is connected in series to the inductance, wherein the rectifier is connected in series to the capacitance, wherein at least one current control means is provided and arranged such that a current flow in the AC part is controllable, and wherein the voltage generator is used as the current control means.
Specification