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US 6,664,770 B1Granted
Wireless power transmission system with increased output voltage
AssigneeIQ- Mobil GmbH
InventorOliver Bartels
Life of this patent
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Abstract
The invention relates to a system for wireless power transmission, which makes it possible to generate an increased voltage on the receiver side using a radio signal that is optimized for this purpose and thereby permits operation particularly of digital semiconductor components in the receiver even if the receiver does not have a power supply of its own.
Claims10
A device for wireless power transmission, including a system for supplying transponders, comprising:
- at least one high-frequency transmitter that transmits a transmitted high-frequency output signal, and
- at least one high-frequency receiver that receives the transmitted high-frequency output signal,
- wherein the at least one high-frequency transmitter is connected to at least one antenna, and the at least one high-frequency receiver is connected to at least one antenna,
- wherein the receiver obtains its operating power from the transmitted high-frequency output signal from said transmitter,
- wherein (1) the transmitted high-frequency output signal from the transmitter is modulated with at least one converter clock suitable for a DC-DC converter, (2) the receiver has at least one detector for demodulating the at least one converter clock from the transmitted high frequency output signal, (3),the receiver generates a DC operating voltage for the DC-DC converter from the high-frequency output signal using at least one of a rectifier and the at least one detector, (4) the DC-DC converter, using the at least one converter clock, and generating another DC voltage to operate further circuit elements.
2 more elements
A device for wireless power transmission, including a system for supplying transponders, comprising:
- at least one high-frequency transmitter that transmits a transmitted high-frequency output signal, and
- at least one high-frequency receiver that receives the transmitted high-frequency output signal,
- wherein the at least one high-frequency transmitter is connected to at least one antenna, and the at least one high frequency receiver is connected to at least one antenna,
- wherein the receiver obtains its operating power from the transmitted high-frequency output signal from said transmitter,
- wherein (1) the transmitted high-frequency output signal from the transmitter is modulated with at least one converter clock suitable for a DC-DC converter, (2) the receiver has at least one detector for demodulating the at least one converter clock from the transmitted high frequency output signal, (3) the receiver generates a DC operating voltage for the DC-DC converter from the high-frequency output signal using at least one of a rectifier and the at least one detector, (4) the DC-DC converter, using the at least one converter clock, and generating another DC voltage to operate further circuit elements,
- wherein one of an inductive switching controller and an inductive switching converter is used as the DC-DC converter, which by means of at least one electronic switch controlled by the converter clock, including a transistor, allows a switched current to flow through at least one inductance and thereby generate a high voltage at the at least one inductance during a disabling process, wherein the high voltage can be picked off directly using a fast switching diode, or decoupled via an additional inductance.
3 more elements
Dependencies are inferred from the claim text.