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1. 发明授权

US11984917B2 Electronics for use in smart cards and other near field RF communications enabled systems 有权
公开(公告)号：US11984917B2
公开(公告)日：2024-05-14
申请号：US17439569
申请日：2020-03-13
申请人： Drayson Technologies (Europe) Limited
发明人： Vitor Freitas , Victor Diaz , Sebastian Litwinow , Alison Lloyd
IPC分类号： H02J50/20 , H02J50/10 , H04B1/04 , H04B1/18
CPC分类号： H04B1/0458 , H02J50/10 , H02J50/20 , H04B1/18
摘要： A mounting system for a near field radio frequency (RF) communicator, the system comprising: a splitter, for splitting an alternating electrical signal received from an antenna of the smart card and having: a first output for providing a first part of the alternating electrical signal to an RF input of said chip, and a second output for providing a second part of the alternating electrical signal for powering an auxiliary circuit; a matching network, at the first output of the splitter, and arranged to provide: an input impedance selected based on the impedance of the first output of the splitter, and an output impedance selected based on the impedance of the RF input of said chip; wherein the network comprises a first inductor for electrical connection to said chip and a second inductor, and the second inductor is arranged for inductive coupling to the first inductor thereby to provide RF coupling, with DC isolation and/or common mode isolation, to the RF input of said chip.

2. 发明申请

US20220407566A1 IMPEDANCE MATCHING IN NEAR-FIELD RF COMMUNICATION DEVICES 有权
公开(公告)号：US20220407566A1
公开(公告)日：2022-12-22
申请号：US17623335
申请日：2020-06-29
申请人： Drayson Technologies (Europe) Limited
发明人： Victor DIAZ , Vitor FREITAS , Sebastian LITWINOW , Alison LLOYD
IPC分类号： H04B5/00 , H03H7/38
摘要： The disclosure provides a controller for a device having near field RF communications capabilities. The controller is configured to: tune the impedance of at least one component of an impedance matching circuit to vary an impedance transformation provided by the impedance matching circuit; determine at least one indication of power output from the circuit, each at least one indication corresponding to an impedance transformation; and identify one of a plurality of modes of the circuit as an operating mode, based on the at least one indication, wherein the impedance matching circuit provides a different impedance transformation in each mode.

3. 发明申请

US20210259096A1 CIRCUITRY FOR USE IN SMART CARDS AND OTHER APPLICATIONS 有权
公开(公告)号：US20210259096A1
公开(公告)日：2021-08-19
申请号：US17252088
申请日：2019-06-14
申请人： DRAYSON TECHNOLOGIES (EUROPE) LIMITED
发明人： Victor DIAZ , Vitor FREITAS , Sebastian LITWINOW , Alison LLOYD
IPC分类号： H05K1/02 , H05K1/16 , H01P5/12 , H02M7/06 , H04B5/00
摘要： A power splitter for a smart card having near field RF communications capability, the power splitter comprising a substrate for integration into said smart card; a first port for connection to a near field RF communications antenna for receiving an alternating electrical signal; a second port for connection to an auxiliary rectifier; and a third port for connection to a near field RF communicator; wherein the splitter comprises a impedance network, connected between the three ports, and being arranged to divide the alternating electrical signal between the second port and the third port to split the alternating electrical signal, wherein the impedance network comprises a printed coil inductor, and a zone of the substrate surrounding the printed coil inductor is free from any ground plane.

4. 发明申请

US20210135490A1 IMPROVED POWER MANAGEMENT CIRCUITRY FOR ENERGY-HARVESTING DEVICES 有权
公开(公告)号：US20210135490A1
公开(公告)日：2021-05-06
申请号：US16476562
申请日：2018-01-12
申请人： DRAYSON TECHNOLOGIES (EUROPE) LIMITED
发明人： Alessandro REVELANT , Alessandro VINCO , Bruno FRANCISCATTO
IPC分类号： H02J50/00 , H02J50/20 , G06K19/07
摘要： Detector circuitry (12) for controlling the operation of a power management module (14) of an energy-harvesting device (10), the detector circuitry comprising: an input (13) for receiving an electrical input representative of a level of harvestable power (Vin); and a trigger coupled to the input and operable to generate an activation signal for switching on the power management module via enabler input (15); wherein the trigger is configured to generate the activation signal upon detecting at least a threshold level of harvestable power, and not to generate the activation signal upon detecting less than the threshold level of harvestable power. Also provided is a method of controlling the operation of a power management module of an energy-harvesting device, the method comprising: receiving an electrical input representative of a level of harvestable power; generating an activation signal for switching on the power management module upon detecting at least a threshold level of harvestable power; and not generating the activation signal upon detecting less than the threshold level of harvestable power.

5. 发明授权

US10978917B2 RF-to-DC converter 有权
公开(公告)号：US10978917B2
公开(公告)日：2021-04-13
申请号：US16476637
申请日：2018-01-12
申请人： DRAYSON TECHNOLOGIES (EUROPE) LIMITED
发明人： Vitor Freitas , Bruno Franciscatto
IPC分类号： H02J50/27 , H02J50/40 , H01P1/20 , H01Q1/24 , H02M7/06 , H02J50/00 , H02J50/20
摘要： A converter (200) for converting a received radio frequency signal into a DC signal for powering a load (300). The converter (200) comprises a first rectifying arm (207) for generating a DC signal based on a first RF voltage input obtained from the received RF signal. A second rectifying arm (209) generates a DC signal based on a second RF voltage input obtained from the received RF signal. The received RF signal provides the voltage difference between the first RF voltage input and the second RF voltage input.

6. 发明授权

US10554146B2 RF-to-DC converter 有权
公开(公告)号：US10554146B2
公开(公告)日：2020-02-04
申请号：US15760084
申请日：2016-09-13
申请人： DRAYSON TECHNOLOGIES (EUROPE) LIMITED
发明人： Manuel Pinuela Rangel , Bruno Roberto Franciscatto
IPC分类号： H02M7/06 , H02J50/20 , H01P1/20 , H01Q1/24
摘要： There is provided a dual-band converter operable to convert a first RF signal in a first frequency band and a second RF signal in a second frequency band that is separate from the first frequency band into a DC signal for powering a load. The converter comprises: a rectifier arranged to generate, based on the first and second RF signals, the DC signal and two or more harmonics of each of the first and second RF signals during operation of the dual-band converter; a planar transmission line arranged to guide the first and second RF signals to the rectifier and to receive a component of each of the harmonics generated by the rectifier during operation of the dual-band converter; a first stub and a second stub each connected to the planar transmission line and arranged to reflect, during operation of the dual-band converter, a component of a first harmonic and a component of a second harmonic of the first RF signal received from the rectifier, respectively; and a third stub and a fourth stub each connected to the planar transmission line and arranged to reflect, during operation of the dual-band converter, a component of a first harmonic and a component of a second harmonic of the second RF signal received from the rectifier, respectively.

7. 发明授权

US09899877B2 Inductive power transfer system 有权
公开(公告)号：US09899877B2
公开(公告)日：2018-02-20
申请号：US14423387
申请日：2013-05-31
申请人： Drayson Technologies (Europe) Limited
发明人： Paul Mitcheson , Stepan Lucyszyn , Manuel Pinuela Rangel , David Yates
IPC分类号： H01F37/00 , H01F38/14 , H02J5/00 , H02J17/00 , H02J50/12 , H02J50/90 , H03F3/217 , G01R31/04 , H02J7/02 , H02M7/537 , H02M7/48
CPC分类号： H02J50/12 , G01R31/04 , H01F38/14 , H02J5/005 , H02J7/025 , H02J17/00 , H02J50/90 , H02M7/537 , H02M2007/4815 , H03F3/2176 , Y02B70/1441 , Y02B70/1483
摘要： An inductive power transfer system comprises a transmitter circuit comprising a transmitter coil and a receiver circuit comprising a receiver coil spaced from the transmitter coil. The transmitter circuit is in the form of a Class E amplifier with a first inductor and a transistor in series between the terminals of a power supply. A first transmitter capacitance is in parallel with the transistor between the first inductor and a power supply terminal, a primary tank circuit in parallel with the first transmitter capacitance, the primary tank circuit comprising the transmitter coil and a second transmitter capacitance arranged in parallel with the transmitter coil, and a third transmitter capacitance in series with the first inductor between the first transmitter capacitance and the primary tank circuit. The second transmitter capacitance is selected such that a resonant frequency of the primary tank circuit is not equal to the first frequency.

8. 发明申请

US20210012176A1 POWER ELECTRONICS FOR USE IN SMART CARDS AND OTHER APPLICATIONS 有权
公开(公告)号：US20210012176A1
公开(公告)日：2021-01-14
申请号：US17042716
申请日：2019-03-29
申请人： DRAYSON TECHNOLOGIES (EUROPE) LIMITED
发明人： Vitor FREITAS , Victor DIAZ , Alison LLOYD
IPC分类号： G06K19/077 , H03H7/38 , H01P5/16 , H01Q1/22 , G06K19/07
摘要： Disclosed herein is a mounting system for a near field RF communications chip. The system comprises: (i) a substrate for carrying electronic components, and for providing electrical interconnections therebetween; (ii) a chip coupling carried by the substrate for connecting a near field RF communications chip (1001) to the mounting system; (iii) an auxiliary power provider (1003), separate from said near field RF communications chip, and adapted for providing electrical power output based on a received alternating electrical signal; (iv) an antenna coupling for connecting a near field RF communications antenna (1006) to said mounting system; and (v) a splitter (1005), for splitting alternating electrical signals.

9. 发明申请

US20190234920A1 METHOD AND APPARATUS FOR SENSING AND FOR IMPROVING SENSOR ACCURACY 审中-公开
公开(公告)号：US20190234920A1
公开(公告)日：2019-08-01
申请号：US16312397
申请日：2017-06-27
申请人： Drayson Technologies (Europe) Limited
发明人： Manuel Pinuela RANGEL , Diana STEFAN , Padarn WILSON
IPC分类号： G01N33/00 , G08B21/14 , G08B29/20
CPC分类号： G01N33/0006 , G01N33/0075 , G08B21/12 , G08B21/14 , G08B29/20
摘要： A method is presented for sensing an environmental parameter, the method comprises the steps of selecting first calibration data for a sensor system, wherein the sensor system is configured to provide sensor data indicating a sensed level of the environmental parameter; providing the first calibration data to the sensor system for use in indicating the environmental parameter; obtaining, from the sensor system, a plurality of items of the sensor data; determining whether a first condition is met by the plurality of items of the sensor data; and, in the event that the first condition is met, sending updated calibration data to the sensor system for use in indicating the environmental parameter, wherein the updated calibration data is based on the first calibration data and the plurality of items of the sensor data.

10. 发明申请

US20190044237A1 ENERGY HARVESTING CIRCUIT BOARD 审中-公开
公开(公告)号：US20190044237A1
公开(公告)日：2019-02-07
申请号：US16076717
申请日：2017-02-08
申请人： Drayson Technologies (Europe) Limited
发明人： Manuel Pinuela RANGEL , Bruno Roberto FRANCISCATTO , Vitor Andrade FREITAS
IPC分类号： H01Q9/04 , H02J50/27 , H01Q1/24
摘要： A circuit board for use in wireless energy harvesting applications is disclosed. The circuit board comprises a first plane and ground plane parallel to the first plane. The ground plane has a substantially rectangular shape with a length less than 1.38 λg and a width less than 0.92 λg. The first plane comprises an antenna, a feedline and a rectifier. The antenna is configured to receive an RF signal with a wavelength of λ0. The feedline is arranged to filter the received RF signal. The rectifier is arranged to generate a DC voltage from the received RF signal. The antenna, the feedline and the rectifier are arranged substantially co-linear along the first plane, and (formula I) where εeff is the relative permittivity of a material between the first plane and the ground plane.

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