摘要:
The present invention relates to a lighting system comprising a base part (12) with at least one primary coil (18), and at least one light module (13, 14) with a secondary coil (26) adapted to inductively interact with the primary coil (18). The lighting system is characterized in that said base part (12) comprises a substrate (50) carrying said primary coil (18), the winding of which lying in one plane and forming a flat coupling area (16); the winding of the second coil (26) lies in one plane; and said light module (13, 14) comprises at least one light element (20) and a flat bottom surface, so that the light module (13, 14) is placeable with its flat surface on the flat coupling area (16).
摘要:
An electronic device (1) is provided with at least a base part (2, 22, 32, 42) and an electronic module (3). The base part (2, 22, 32, 42) comprises a soft magnetic layer (5, 25, 35, 45) and at least a primary coil (7). The electronic module (3) comprises at least one electronic element and at least a secondary coil (8) adapted to inductively interact with the primary coil (7). The primary coil (7) is located in a hole (6) of the soft magnetic layer (5, 25, 35, 45). The electronic module (3) further comprises at least one magnet (9) adapted to magnetically interact with the soft magnetic layer (5, 25, 35, 45).
摘要:
A Wireless power transmission system comprises a base unit (1) with multiple magnetic field generator circuits and a device (10), separable from said base unit (1) having a receiving inductor, adapted to receive power inductively when said device (10) is in proximity to one of said generator circuits, wherein said base unit (1) comprises a controller (3), configured to determine a transmission circuit (2′) from said generator circuits when said receiving inductor is in proximity to said transmission circuit (2′), whereupon said transmission circuit (2′) is operated to generate a first magnetic field (8), having a first phase, to induce a current in said receiving inductor and at least one of the remaining generator circuits is operated as a compensation circuit (2″, 52, 82) to generate a second magnetic field (21), having an opposite phase to said first phase.
摘要:
The invention relates to a gas-tight electroluminescent device (100) with an electroluminescent part (104) and a sealing part (102). The electroluminescent part comprises an electroluminescent layer (114), a first electrode layer (112), and a second electrode layer (116). The sealing part comprises a substrate (106), a cover plate (110) for gas-tight sealing the electroluminescent device, and at least one receiver winding (105; 206; 208; 406) for receiving electromagnetic radiation.
摘要:
A method of detecting a receiver (214) by a transmitter and a transmitter for detecting a receiver are provided. The transmitter is intended to transmit power inductively to the receiver (214). The transmitter comprising a first transmission coil as a first electrode (204) and a second electrode (206). The first electrode (204) and the second electrode (206) form a capacitor (202). The method comprises the steps of applying a voltage (216) to any one of the electrodes (204, 206) and detecting a capacitance change of the capacitor (202).
摘要:
System for configuring and powering a wireless batteryless device, the system comprising: - a wireless batteryless device (A) comprising : - a built-in harvester (12) for harvesting energy from a first energy source, for example ambient energy, - means for communicating wirelessly, - and an external device (B) comprising : - a second power source (16), - means (17) for converting energy supplied by the second power source into energy suitable for being harvested in the harvester of the batteryless device, - means (18) for wirelessly supplying the batteryless device with the converted energy via the built-in harvester, and - means for communicating with the batteryless device. The invention also relates to an external device therefore, and a method for configuring and powering a batteryless device.
摘要:
The invention relates to a nuclear magnetic resonance imaging apparatus comprising: a main magnet (122) adapted for generating a main magnetic field; at least one radio frequency receiver coil unit (144) for acquiring magnetic resonance signals in a receiver coil radio frequency band (202) from an examined object (124); means (140) for inductively (wirelessly) supplying electric power to an electric component of the apparatus, wherein the electric component is adapted to be powered by inductively supplied electric power, wherein the power transfer frequency (200) and the higher-harmonics (206) of the power transfer frequency (200) for inductively supplying the electric power are located outside the receiver coil radio frequency band (202).
摘要:
The invention relates to a light emitting device (1) with an electronic driver (10) and a planar light emitting element (20), wherein the driver (10) is connected with a source (2) and the light emitting element (20), wherein the light emitting element (20) having an internal capacitance (21) is connected to said driver (10) in such a way that the internal capacitance (21) serves as a passive output filter of the driver (10).
摘要:
Organic light emitting diode arrangement Organic light emitting diode arrangements (1) are, to protect them against an effect of a switch-on, provided with circuits (31-36) for, during a first time interval that follows a switch-on, limiting a current through the organic light emitting diode arrangement (1) more and for, during a second time interval that follows the first time interval, limiting the current less. The circuit (31-36) may be passive such as a negative temperature coefficient resistor (31) or a series inductor (32) possibly with a freewheel diode (40) or may be active such as a switchable resistor (33) that is not bridged during the first time interval and that is bridged during the second time interval or a switchable resistor that is bridged in response to a detection of a value of the current exceeding a threshold value or such as a part of a converter (63) that is controlled in response to a detection of a value of the current.