US20180062434A1 - Wireless Connector Receiver Module Circuit - Google Patents

Wireless Connector Receiver Module Circuit Download PDF

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Publication number
US20180062434A1
US20180062434A1 US15/686,973 US201715686973A US2018062434A1 US 20180062434 A1 US20180062434 A1 US 20180062434A1 US 201715686973 A US201715686973 A US 201715686973A US 2018062434 A1 US2018062434 A1 US 2018062434A1
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US
United States
Prior art keywords
circuit
receiver
transmitter
sub
electrical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US15/686,973
Other languages
English (en)
Inventor
Vinit Singh
Pavel Shostak
Alberto Peralta
Jason Luzinski
Jacob D. Babcock
Michael Gotlieb
Glenn E. Riese
Md. Nazmul Alam
Robert Giometti
Oleg Loss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nucurrent Inc
Original Assignee
Nucurrent Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nucurrent Inc filed Critical Nucurrent Inc
Priority to US15/686,973 priority Critical patent/US20180062434A1/en
Assigned to NUCURRENT, INC. reassignment NUCURRENT, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GIOMETTI, ROBERT, SINGH, VINIT, GOTLIEB, Michael, PERALTA, ALBERTO, ALAM, MD. NAZMUL, BABCOCK, JACOB, LOS, OLEG, LUZINSKI, JASON, RIESE, GLENN E., SHOSTAK, PAVEL
Publication of US20180062434A1 publication Critical patent/US20180062434A1/en
Assigned to NUCURRENT, INC. reassignment NUCURRENT, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GIOMETTI, ROBERT, SINGH, VINIT, GOTLIEB, Michael, PERALTA, ALBERTO, ALAM, MD. NAZMUL, BABCOCK, JACOB, LOS, OLEG, LUZINSKI, JASON, RIESE, GLENN E., SHOSTAK, PAVEL
Abandoned legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/14—Inductive couplings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/526—Electromagnetic shields
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/7082—Coupling device supported only by cooperation with PCB
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/60—Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/28—Impedance matching networks
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/38—Impedance-matching networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
    • H04B5/24—Inductive coupling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
    • H04B5/24—Inductive coupling
    • H04B5/26—Inductive coupling using coils
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H04B5/72—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H04B5/75—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for isolation purposes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H04B5/79—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0213—Electrical arrangements not otherwise provided for
    • H05K1/0216—Reduction of cross-talk, noise or electromagnetic interference
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/14—Structural association of two or more printed circuits
    • H05K1/147—Structural association of two or more printed circuits at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/18—Printed circuits structurally associated with non-printed electric components
    • H05K1/181—Printed circuits structurally associated with non-printed electric components associated with surface mounted components
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/36—Assembling printed circuits with other printed circuits
    • H05K3/361—Assembling flexible printed circuits with other printed circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/40—Forming printed elements for providing electric connections to or between printed circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0247—Electrical details of casings, e.g. terminals, passages for cables or wiring
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0073—Shielding materials
    • H05K9/0075—Magnetic shielding materials
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0073—Shielding materials
    • H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0073—Shielding materials
    • H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
    • H05K9/0084—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising a single continuous metallic layer on an electrically insulating supporting structure, e.g. metal foil, film, plating coating, electro-deposition, vapour-deposition
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H01R12/52—Fixed connections for rigid printed circuits or like structures connecting to other rigid printed circuits or like structures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
    • H01R12/57—Fixed connections for rigid printed circuits or like structures characterised by the terminals surface mounting terminals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/7088—Arrangements for power supply
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/721—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures cooperating directly with the edge of the rigid printed circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
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    • H01R12/722—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures coupling devices mounted on the edge of the printed circuits
    • H01R12/724—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures coupling devices mounted on the edge of the printed circuits containing contact members forming a right angle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/722—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures coupling devices mounted on the edge of the printed circuits
    • H01R12/725—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures coupling devices mounted on the edge of the printed circuits containing contact members presenting a contact carrying strip, e.g. edge-like strip
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    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/73—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures connecting to other rigid printed circuits or like structures
    • H01R12/732—Printed circuits being in the same plane
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0277—Bendability or stretchability details
    • H05K1/028—Bending or folding regions of flexible printed circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
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    • H05K1/14—Structural association of two or more printed circuits
    • H05K1/148—Arrangements of two or more hingeably connected rigid printed circuit boards, i.e. connected by flexible means
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10007—Types of components
    • H05K2201/10098—Components for radio transmission, e.g. radio frequency identification [RFID] tag, printed or non-printed antennas
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/36—Assembling printed circuits with other printed circuits
    • H05K3/366—Assembling printed circuits with other printed circuits substantially perpendicularly to each other
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0007—Casings
    • H05K9/002—Casings with localised screening
    • H05K9/0022—Casings with localised screening of components mounted on printed circuit boards [PCB]

Definitions

  • the present disclosure generally relates to the wireless transmission of electrical energy and data. More specifically, this application relates to an electrical device that facilitates the wireless transmission electrical energy at multiple operating frequencies and frequency bands.
  • Prior art electrical connectors are traditionally constructed with a plurality of pins that physically plug into a corresponding receiving port. Each half of these connectors are typically assigned a male and a female designation which are subsequently mated to form an electrical contact.
  • an electrical connector is an electro-mechanical device comprising electrical conductors that are used to electrically and mechanically join other conductors, electrical terminals of apparatus and equipment to create an electrical circuit.
  • the term electrical connector generally covers a wide range of devices designed to connect, for example, small conductors employed in communication circuits to large cables and bus-bars. They are typically passive and consist of plugs (male) and jacks (female). The connection may be temporary, as for portable equipment, or may serve as a permanent electrical joint between two wires or devices.
  • Examples of prior art connectors include USB and HDMI plugs.
  • the power levels for these connectors range from a few Watts to about 100 Watts (as, for example, for the recently released USB-C).
  • These connectors are also constructed and rated to provide data capabilities of up to 10 Gbps or higher.
  • there are numerous types of connectors ranging from a simplistic “Wire Nut” to more complex USB connectors or RF connectors, which mostly comply with known connection interface standards, for example, Ethernet, CAN, IO-Link, and RS485.
  • the power levels for these connectors can range from microwatts to megawatts.
  • Typical connector types are in-line splice couplers, T-tap connectors, terminal lugs, and stud connectors. Couplers join conductors end to end. T-tap connectors join a through conductor to another conductor at right angles. Terminal lugs join the conductor to a drilled tongue for bolting to the terminals of equipment. Stud connectors join the conductor to equipment studs. The stud clamp is typically threaded or smooth to match the stud.
  • split-bolt connectors that are generally of a compact construction and are widely used for splicing and taping wires.
  • the split-bolt connector comprises a bolt-shape casting having a wide and deep lengthwise slot. Conductors are inserted in the slot and a nut clamps the conductors together inside the bolt.
  • Yet another type of connector is an expansion or flexible connector that allows for limited motion between the connected conductors.
  • the clamp portions of the connector are joined by short lengths of flexible copper braid and may also be held in alignment by a telescoping guide.
  • Separable type connectors that generally consist of matched plugs and receptacles. Separable type connectors are designed to separate or disconnect a conductor or group of conductors from a circuit or system. Separable type connectors are commonly used for the connection of portable devices and appliances to an electric wiring system.
  • Traditional connectors also include locking type connectors that are designed such that a plug is inserted and twisted through a shaped opening, locking it securely in place. Thus, when connected, locking type connectors are generally not separated by a mechanical strain such as a pull on the connected cord.
  • Electrical connectors are generally characterized by a variety of parameters which include, but are not limited to, the number of electrical connections (i.e. pins), physical construction, size, shape, contact resistance, insulation between electrical connections, ruggedness to vibration, resistance to contaminants and pressure, reliability, estimated lifetime (number of connect/disconnect operations before failure), and ease of connecting and disconnecting.
  • the physical electrical connections, such as pins, of traditional connectors provide a passage for electrical energy and data.
  • characteristics of electrical power and data such as power ratings and data rates are also utilized to characterize various electrical connectors.
  • wired connectors typically do not allow any relative motion between the male and the female portions. Over time, due to this physical contact, these mechanical connection points typically experience forces that can fatigue and damage the pin or port, thereby preventing proper functionality. Such prior art connectors may wear, flex, or may become corroded or damaged. As a result, the physical connection between the corresponding male and female portions such as a pin and respective port may become compromised, thereby resulting in a loss of data or electrical energy transfer therebetween due to an impaired or inoperable connector. Contamination, moisture and liquid ingress in a consumer, medical, military or industrial environment may pose undesirable problems, including outright failure to perform which may result in hazardous, unsafe or threatening conditions.
  • UART Universal Asynchronous Receiver and Transmitter Protocol
  • I2C Inter-Integrated Protocol
  • SPI Serial Peripheral Interface Protocol
  • Such prior art connectors typically comprise an electrical cord that extends from the connector.
  • Such electrical cords are generally not desired as they may also become damaged, resulting in a loss of data or energy transfer.
  • electrical cords may excessively occupy critical space and become an impediment to the user.
  • exposed or damaged cords may contaminate a sterilized environment.
  • such exposed or damaged cords for example, cords that have lost their electrical insulation, may become a hazard and potentially cause electrical shock to both humans and animals.
  • the wireless connector system of the present application enables the wireless transmission of electrical power and/or data between spaced apart transmitter and receiver modules using near field magnetic coupling (NFMC).
  • NFMC near field magnetic coupling
  • the respective transmitter and receiver wireless modules may be insulated and/or hermetically sealed.
  • the connectors have exposed contact pins and features allowing them to be assembled onto larger electrical circuits, such as a printed circuit board (PCB) or flexible circuit board (FPC) using an electrical component surface mount (SMT) assembly process.
  • PCB printed circuit board
  • FPC flexible circuit board
  • SMT electrical component surface mount
  • an electrical connector having a form factor that can replace or eliminate the need for wired connectors.
  • the wireless connector system of the present application provides a wireless power link that eliminates the need for a physical connection such as an electrical connector that physically joins two components together.
  • a physical connection such as an electrical connector that physically joins two components together.
  • the wireless connector or power link can be completely encapsulated, preventing liquids and other debris from inhibiting proper functionality.
  • mechanical and environmental stresses and wear of the connector are eliminated and a more reliable and robust link to transfer power and data is achieved.
  • This solution also allows for greater misalignment and/or relative movement between the transmitter and receiver compared to prior art connectors. This could allow these connectors to be used in applications which were not previously considered for wired connectors due to their limitations.
  • a receiver circuit configured to receive a wireless signal.
  • the receiver circuit includes a receiver antenna configured to receive a wireless signal and a receiver master control sub-circuit comprising a master control unit.
  • the receiver circuit includes an electrical impedance matching sub-circuit electrically connected to the receiver antenna, wherein the electrical impedance matching sub-circuit comprises at least one capacitor, and wherein the electrical impedance matching sub-circuit is configured to prepare the wireless signal received by the receiver circuit for use by an electrically connectable electrical device.
  • the receiver circuit includes a voltage regulator sub-circuit electrically connected to the receiver master control sub-circuit.
  • the transmitter and receiver modules of the wireless connector system of the present application are designed with electrical circuitry that increases the amount of wirelessly transmitted electrical power over a greater separation distance between the transmitter and receiver modules.
  • the wireless connector system may be configured with various sensors that detect the presence of an electrical energy transfer module, heat, or an undesirable foreign object.
  • the operation of the transmitter and/or the receiver module may be dependent upon information obtained from various sensors that may or may not be incorporated within the module.
  • FIG. 1 illustrates a block diagram of an embodiment of the wireless connector system of the present application.
  • FIG. 2 shows a block diagram of an embodiment of the wireless connector system of the present application.
  • FIGS. 3-6 illustrate electrical block diagrams of embodiments of the transmitter module.
  • FIGS. 7, 8A, and 8B show embodiments of a switching capacitance circuit that may be incorporated within the impedance matching circuit of the transmitter or receiver circuit of the present application.
  • FIGS. 9-12 illustrate electrical schematic diagrams of embodiments of the transmitter circuit.
  • FIG. 13 illustrates a block diagram of an embodiment of the receiver module of the wireless connector system of the present application.
  • FIG. 14 illustrates an electrical schematic diagram of an embodiment of the receiver circuit within the receiver module.
  • FIG. 15 is an electrical block diagram of an embodiment of the receiver module.
  • FIG. 16 illustrates an electrical schematic diagram of an embodiment of the receiver circuit within the receiver module.
  • FIG. 17 is an electrical block diagram of an embodiment of the receiver module.
  • FIGS. 18A-18D illustrate embodiments of capacitors within the impedance matching circuit that may be utilized in the transmitter or receiver circuit.
  • FIGS. 19-21 show embodiments of the transmitter and receiver modules of the present application.
  • FIGS. 22-23 illustrate embodiments of the transmitter and receiver modules of the wireless connector of the present application electrically connected to a host device.
  • FIG. 24 shows an embodiment of the positioning of the antenna and transmitter and receiver circuit board relative to shielding and spacer materials within the transmitter and receiver module housings.
  • FIGS. 25 and 26 illustrate embodiments of electrically connecting the transmitter and receiver modules to a circuit board of a host device.
  • FIGS. 27-30 illustrate embodiments of alternative structures of the transmitter or receiver modules of the present invention.
  • FIG. 30A is a cross-sectional view of the embodiment of the assembled transmitter module or receiver module shown in FIG. 30 .
  • FIGS. 31-34 illustrate different embodiments of the transmitter or receiver module shown in FIGS. 27-30 mounted to a circuit board.
  • FIG. 35 shows an embodiment of an antenna that may be utilized in either or both the transmitter and receiver modules.
  • the wireless connector system 10 of the present disclosure provides for the wireless transfer of electrical energy and/or data. More specifically, the wireless connector system 10 of the present invention provides for the wireless transfer of electrical energy and/or data via near field magnetic coupling.
  • the wireless connector system 10 comprises a transmitter module 12 configured to transmit electrical energy and a receiver module 14 configured to receive electrical energy transmitted by the transmitter module 12 .
  • the transmitter module 12 is positioned spaced from the receiver module 14 so that electrical energy is wirelessly transmitted from the transmitter module 12 across a separation distance or gap 16 ( FIGS. 2 and 19-22 ) where it is received by the receiver module 14 .
  • the combination of the transmitter and receiver modules 12 , 14 provides for the wireless connector system 10 so that electrical energy can be transferred wirelessly without the need of a physical connection therebetween.
  • NFMC near-field magnetic coupling
  • NFC near-field magnetic coupling
  • inductive charging is a wireless charging technique that utilizes an alternating electromagnetic field to transfer electrical energy between two antennas.
  • Resonant inductive coupling is defined herein as the near field wireless transmission of electrical energy between two magnetically coupled coils that are tuned to resonate at a similar frequency.
  • shield means an electrically conductive pathway that is created by electrically joining two points of a circuit such that an electrical current or an electrical voltage may pass therethrough.
  • mutant inductance is the production of an electromotive force in a circuit by a change in current in a second circuit magnetically coupled to the first.
  • shielding material is a material that captures a magnetic field. Examples of shielding material include, but are not limited to ferrite materials such as zinc comprising ferrite materials such as manganese-zinc, nickel-zinc, copper-zinc, magnesium-zinc, and combinations thereof.
  • a shielding material thus may be used to direct a magnetic field to or away from an object, such as a parasitic metal, depending on the position of the shielding material within or nearby an electrical circuit. Furthermore, a shielding material can be used to modify the shape and directionality of a magnetic field.
  • a parasitic material such as a parasitic metal, is a material that induces eddy current losses in the inductor antenna. This is typically characterized by a decrease in inductance and an increase in resistance of the antenna, i.e., a decrease in the quality factor.
  • FIG. 1 shows a generic block diagram of the wireless connector system 10 of the present invention.
  • the system 10 comprises the transmitter module 12 spaced from the receiver module 14 by the gap 16 .
  • the transmitter module 12 comprises a transmitter module circuit 18 that is electrically connected to a transmitter antenna 20 .
  • the transmitter antenna 20 may comprise one or more antennas to facilitate the wireless transfer of electrical power and/or data.
  • the transmitter module circuit 18 is configured to modify electrical energy that is received from an electrical source (not shown) or a transmitter host device 22 that is electrically connected to the transmitter module 12 .
  • the transmitter host device 22 may comprise an electrically operated device, a circuit board, an electronic assembly, or other electronic device. Examples of transmitter host devices include, but are not limited to, a medical device, a device that comprises an integrated circuit, such as a computer, and personal electronic devices, such as, but not limited to, eye glasses and clothing configured with electronic components.
  • the transmitter antenna 20 is configured to wirelessly transmit the electrical energy conditioned and modified for wireless transmission by the transmitter module circuit 18 via near-field magnetic induction coupling.
  • the transmitter module 12 may be electrically powered by the transmitter host device 22 .
  • the receiver module 14 comprises a receiver module circuit 24 that is electrically connected to a receiver module antenna 26 .
  • the receiver antenna 26 is configured to receive electrical energy and/or data that is transmitted by the transmitter module 12 .
  • the receiver module circuit 24 is configured to condition the received wireless electrical energy such that it can be used to electrically power a device or provide electrical energy to an electrical energy storage device such as a battery or capacitor.
  • the receiver module 14 is electrically connected to a receiver host device 28 .
  • the receiver host device 28 comprises an electrically operated device, a circuit board, an electronic assembly, or other electronic device.
  • receiver host devices include, but are not limited to, a medical device, a device that comprises an integrated circuit, such as a computer, and personal electronic devices, such as not but limited to eye glasses and clothing configured with electronic components.
  • the receiver module 14 may be electrically powered from an electrical power source 105 ( FIG. 17 ) supplied by the receiver host device 28 . It is noted that at least one of the transmitter and receiver modules 12 , 14 may be configured as a transceiver thereby enabling either or both the transmitter and receiver modules 12 , 14 to transmit and receive electrical power and/or data.
  • the transmitter module 12 and the receiver module 14 may be connected to the same host device to facilitate wireless transfer of electrical energy within the host device.
  • the transmitter and receiver modules 12 , 14 may be electrically connected to different host devices thereby facilitating wireless transfer of electrical energy between two different devices.
  • FIG. 2 illustrates a block diagram of an embodiment of the wireless connector system 10 of the present application.
  • the transmitter module circuit 18 comprises a gate driver 30 and an electrical power amplifier 32 .
  • a voltage supply and electrical ground, from the transmitter host device 22 are electrically connected to the gate driver 30 and the electrical power amplifier 32 of the transmitter module circuit 18 .
  • the gate driver 30 is used to control the operation of the electrical power amplifier 32 .
  • a control signal and pulse width modulation signal from the transmitter host device 22 are electrically connected to the gate driver 30 of the transmitter module circuit 18 .
  • the control signal and pulse width modulator signal are used to control the operation of the transmitter module 12 .
  • the receiver module 14 which is illustrated comprising the receiver antenna 26 , a rectifier 34 and a voltage regulator 36 , is positioned spaced at the gap 16 from the transmitter module 12 .
  • an electrical power line which is electrically connected to the receiver host device 28 and the receiver module circuit 24 , exits the receiver module 14 to provide electrical power to a connected receiver host device 28 .
  • the rectifier 34 is configured to rectify the received wireless electrical power from an alternating current electrical power to a direct current electrical power.
  • the voltage regulator 36 is configured to modify the voltage of the received wireless electrical power before it exits the receiver module 14 .
  • FIGS. 3-6 are block diagrams that illustrate embodiments of the transmitter module circuit 18 of the present invention that comprises various transmitter module sub-circuits.
  • the transmitter module circuit 18 comprises an electrical driver sub-circuit 38 , an electrical impedance matching or network sub-circuit 40 and a receiver sensing sub-circuit 42 .
  • the transmitter module circuit 18 may comprise a voltage regulator 36 and a master control unit 44 .
  • the voltage regulator 36 and the master control unit 44 may be comprised within the transmitter host device 22 .
  • the voltage regulator 36 is configured to adjust the amplitude of the voltage of the electrical energy received from an electrical source, such as the transmitter host device 22 , by the transmitter module circuit 18 .
  • the voltage regulator 36 is electrically connected to an electrical power source 46 and the driver sub-circuit 38 .
  • the electrical power source 46 may comprise an electrical storage device such as an electrochemical cell (not shown), a battery pack (not shown), or a capacitor (not shown).
  • the electrical power source 46 may comprise an alternating or direct current electrical power from the transmitter host device 22 .
  • the driver circuit 38 controls the operation of the electrical impedance matching or network sub-circuit 40 and/or the transmitter antenna 20 .
  • the driver sub-circuit 38 may comprise an integrated circuit such as a half-bridge integrated circuit. In an embodiment, the driver sub-circuit 38 may be configured to convert at least a portion of the electrical power from a direct current electrical power to an alternating current electrical power for wireless transmission.
  • the receiver sensing sub-circuit 42 is configured to detect the presence of the receiver module 14 . In an embodiment, if the presence of the receiver module 14 is detected, wireless transmission of electrical power and/or data by the transmitter module 12 to the receiver module 14 is enabled. Likewise, in an embodiment, if the presence of the receiver module 14 is not detected, wireless transmission of electrical power and/or data is prevented from occurring.
  • the master control unit 44 which may comprise an integrated circuit, is electrically connected to the driver sub-circuit 38 . In an embodiment, the master control unit 44 controls the operation of the transmitter antenna 20 and transmitter module circuit 18 .
  • the electrical impedance matching or network circuit 40 which comprises at least one capacitor, is electrically connected to the electrical driver sub-circuit 38 and the transmitter antenna 20 .
  • the impedance matching circuit 40 provides a capacitance that is designed to adjust and match the electrical impedance of the receiver antenna 26 to a characteristic impedance of the power generator or the load at a driving frequency of the transmitter antenna 20 .
  • electrical power from an electrical source 46 is received by the voltage regulator 36 and the master control unit 44 .
  • a first portion of the electrical power, from the electrical power source 46 is configured to electrically power the components of the transmitter module 12 such as the master control unit 44 .
  • a second portion of the electrical power, from the electrical power source 46 is conditioned and modified for wireless transmission to the receiver module 14 .
  • the voltage regulator 36 modifies the amplitude of the voltage of the second portion of electrical power to match the voltage requirements of the receiver host device 28 .
  • the second portion of the electrical power, conditioned by the transmitter module circuit 18 for wireless transmission is received by the transmitter antenna 20 where it is wirelessly transmitted to the receiver module 14 .
  • the transmitter module circuit 18 may also be configured with a power stage inverter 48 , such as a dual field effect transistor power stage inverter.
  • the power stage inverter 48 is an electrical amplifier that is electrically connected to the driver sub-circuit 38 and the network analyzer sub-circuit 40 .
  • the addition of the power inverter 48 within the transmitter module circuit 18 enables wireless transmission of an electrical power having an increased amplitude.
  • the addition of the inverter sub-circuit 48 enables the transmitter module 12 to transmit an electrical power from about 300 mW to about 600 mW.
  • the transmitter module 12 is configured to transmit electrical power between about 100 mW to about 300 mW.
  • the power stage inverter 48 may be configured to modify the electrical power to be transmitted from a direct current electrical power to an alternating current electrical power.
  • the transmitter module circuit 18 may be configured with a variety of sensing circuits.
  • the transmitter module circuit 18 may also be configured with a thermal sense sub-circuit 50 and/or an object sensing sub-circuit 52 .
  • the thermal and object sensing sub-circuits 50 , 52 are electrically connected to the transmitter master control unit 44 .
  • the thermal sense sub-circuit 50 is configured to monitor the temperature within the transmitter module 12 . In an embodiment, if the master control unit 44 through the thermal sense sub-circuit 50 detects that the temperature within the transmitter module 12 to have increased from about 20° C. to about 50° C., the transmitter master control unit 44 prevents the operation of the transmitter module 12 .
  • the thermal sensing sub-circuit 50 may comprise a thermocouple, a thermistor, such as a negative temperature coefficient (NTC) resistor, a resistance temperature detector (RTD), or combinations thereof.
  • the object detection sub-circuit 52 is electrically connected to the transmitter master control unit 44 .
  • the object detection sub-circuit 52 is configured to detect the presence of an undesired object. In an embodiment, if the master control unit 44 through the object detection sub-circuit 52 , detects the presence of an undesired object, the master control unit 44 prevents the operation of the transmitter module 12 .
  • the object detection sub-circuit 52 utilizes an impedance change detection scheme in which the master control unit 44 analyzes a change in electrical impedance observed by the transmitter antenna 20 against a known, acceptable electrical impedance value or range of electrical impedance values.
  • the object detection sub-circuit 52 may utilize a quality factor change detection scheme in which the master control unit 44 analyzes a change from a known quality factor value or range of quality factor values of the object being detected, such as the receiver antenna 26 .
  • the object detection sub-circuit 52 may comprise an optical sensor, a Hall Effect sensor, or combination thereof.
  • these sensors may be monitored using the master control unit 44 , a computer (not shown), a comparator (not shown), or other active or passive monitoring methods known to one skilled in the art.
  • the information obtained from the sensors may be used to control operation of the transmitter module 12 , the receiver module 14 , or the system 10 .
  • the transmitter module circuit 18 may be configured to transmit and receive data 54 .
  • the transmitter module 12 may be configured to communicate to and from the receiver module 14 through modulation and demodulation of the data 54 .
  • the data 54 may comprise information in for form of an electrical voltage and/or an electrical current.
  • FIG. 6 illustrates an embodiment of the transmitter module circuit 18 of the present application comprising the master control unit 44 , the driver circuit 38 comprising a half-bridge driver, the power stage inverter 48 comprising a dual-field effect power stage inverter and the impedance matching circuit 40 .
  • a sensing line (SNS) connects the master control unit (MCU) 44 to at least one of the receiver sensing sub-circuit 42 , the thermal sensing sub-circuit 50 and the object detection sub-circuit 52 .
  • the impedance matching sub-circuit 40 may comprise a switch capacitance sub-circuit 56 .
  • the switch capacitance sub-circuit 56 comprises an electrical switch 58 and at least two capacitors C 1 and C 2 that are connected in electrical parallel. As shown in FIG. 7 , three capacitors C 1 , C 2 , and C 3 are connected in electrical parallel and the switch 58 is shown between capacitors C 1 and C 2 .
  • the capacitance of the impedance matching circuit 40 may be adjusted by the master control unit 44 by turning the switch 58 on and off, thereby dynamically connecting or disconnecting capacitors within the impedance matching sub-circuit 40 which adjusts the resulting impedance.
  • FIG. 8A illustrates an alternate embodiment of the switch capacitance sub-circuit 56 in which the switch 58 is electrically connected between capacitors C 4 and C 5 , that are electrically connected in parallel.
  • inductor L 1 and resistor R 1 are electrically connected to capacitors C 4 and C 5 .
  • FIG. 8B illustrates an alternate embodiment of a switch capacitor sub-circuit 56 comprising first and second switches 58 , resistors R 2 , R 3 , and R 4 , capacitors C 6 and C 7 , and diodes D 1 -D 4 that may be incorporated within the transmitter module circuit 18 or the receiver module circuit 24 to dynamically adjust the impedance of the impedance matching circuit 40 .
  • FIGS. 9-12 are electrical schematic diagrams that illustrate embodiments of the transmitter module circuit 18 of the present application.
  • the transmitter module circuit 18 comprises the impedance matching sub-circuit 40 , an electrical power sub-circuit 60 and a sensing sub-circuit 62 , such as the receiver module sensing sub-circuit 42 , the thermal sensing sub-circuit 50 , the object sensing sub-circuit 52 , or combinations thereof.
  • the electrical power sub-circuit 60 modifies and configures electrical power received from the electrical power source 46 to power the various circuits comprising the transmitter module 12 and provide electrical power for wireless transmission to the receiver module 14 .
  • the electrical power sub-circuit 60 comprises the driver sub-circuit 38 , such as a half-bridge driver circuit.
  • the electrical power sub-circuit 60 may comprise the master control unit 44 .
  • Electrical energy from the power source 46 or the transmitter host device 22 is received by the transmitter driver sub-circuit 38 or master control unit 44 .
  • the driver sub-circuit 38 or the master control unit 44 is configured to convert a portion of the electrical power from a direct current electrical power to an alternating current electrical power for wireless transmission.
  • the driver sub-circuit 38 or master control unit 44 may be configured to adjust the amplitude of the voltage of the received electrical power.
  • the driver sub-circuit 38 or master control unit 44 is also configured to provide electrical power to operate the other components that comprise the transmitter module 12 .
  • the embodiments of the transmitter circuit shown in FIGS. 9 and 10 further illustrate different embodiments of the receiver module sensing sub-circuit 42 .
  • the receiver module sensing sub-circuit 42 comprises an envelope tracker sub-circuit 64 comprising resistors R 5 and R 6 electrically connected in series, diode D 5 electrically connected in series to resistor R 5 , and capacitor C 11 electrically connected between resistors R 5 and R 6 .
  • the envelope tracker circuit 64 is configured to generate an analog voltage signal at node 66 that resides between resistors R 5 and R 6 .
  • the analog voltage is received by an analog to digital converter (not shown) that is electrically connected to the master control unit 44 .
  • the receiver antenna 26 within the receiver module 14 begins to resonate.
  • the presence of the receiver antenna 26 within the magnetic field emanating from the transmitter antenna 20 establishes an electrical coupling between the transmitter and receiver antennas 20 , 26 creates a shift in electrical impedance that is detected by the transmitter antenna 20 .
  • This change in electrical impedance which results when the receiver antenna 26 of the receiver module 14 is positioned within the magnetic field generates a change in electrical voltage at node 66 .
  • this voltage signal alerts the master control unit 44 of the transmitter module 12 which then begins transmission of electrical energy from the transmitter module 12 to the receiver module 14 .
  • a voltage greater than 0 is detected by the transmitter host device 22 or transmitter master control unit 44 from the voltage sense signal, it is determined that the receiver module 14 is present.
  • the driver sub-circuit 38 or the transmitter master control unit 44 is activated and electrical power from the transmitter host device 22 or electrical power source 46 is wirelessly transmitted by the transmitter antenna 20 to the receiver module 14 .
  • FIG. 10 illustrates an alternate embodiment of the envelope tracker circuit 64 .
  • the envelope tracker circuit 64 comprises integrated sub-circuit 67 that comprises integrated circuit 68 , capacitor C 16 and resistors R 9 and R 10 .
  • the integrated sub-circuit 67 is configured to convert the analog voltage received at node 69 into a digital signal that is received by the master control unit 44 within the transmitter module circuit 18 .
  • FIGS. 11 and 12 illustrate alternate embodiments of the transmitter module circuit 18 .
  • FIGS. 11 and 12 illustrate alternate embodiments of the electrical power sub-circuit 60 .
  • the electrical power sub-circuit 60 of FIGS. 11 and 12 comprise a field effect transistor Q 1 ( FIG. 11 ) and Q 2 ( FIG. 12 ).
  • the electrical power sub-circuit 60 of FIGS. 11 and 12 are configured to drive the transmitter antenna 20 to allow for wireless power transfer.
  • FIG. 11 illustrates the transmitter module circuit 18 .
  • FIGS. 11 and 12 illustrate alternate embodiments of the electrical power sub-circuit 60 .
  • the electrical power sub-circuit 60 of FIGS. 11 and 12 comprise a field effect transistor Q 1 ( FIG. 11 ) and Q 2 ( FIG. 12 ).
  • the electrical power sub-circuit 60 of FIGS. 11 and 12 are configured to drive the transmitter antenna 20 to allow for wireless power transfer.
  • the electrical power sub-circuit 60 comprises the field effect transistor (FET) Q 1 that is turned on and off by a control signal from the master control unit 44 or other signal generator, such as a signal generator that resides within the transmitter host device 22 to create the necessary input to control (FET) Q 1 and the wireless electrical power transfer.
  • the electrical power sub-circuit 60 further comprises resistor R 11 , capacitors C 11 , C 18 and inductors L 3 -L 5 .
  • the field effect transistor (FET) Q 2 is electrically connected to power amplifier 60 comprising resistors R 19 -R 21 , inductor L 6 , and capacitors C 25 -C 28 , and integrated circuits 72 and 74 to modify a direct current (DC) voltage input to an alternating current (AC) amplified voltage signal that drives the transmitter antenna 20 to enable wireless electrical power transfer.
  • power amplifier 60 comprising resistors R 19 -R 21 , inductor L 6 , and capacitors C 25 -C 28 , and integrated circuits 72 and 74 to modify a direct current (DC) voltage input to an alternating current (AC) amplified voltage signal that drives the transmitter antenna 20 to enable wireless electrical power transfer.
  • DC direct current
  • AC alternating current
  • the embodiments of the transmitter module circuit 18 shown in FIGS. 11 and 12 further illustrate various embodiments of the receiver module sensing sub-circuit 42 .
  • the receiver sensing sub-circuit 42 comprises an operational amplifier 76 comprising capacitors C 21 -C 23 , resistors R 12 -R 17 and diode D 8 .
  • the change in electrical impedance is detected at node 78 which resides between the transmitter antenna 20 and the impedance matching circuit 40 comprising capacitors C 19 and C 20 .
  • the electrical impedance is then converted into an electrical current signal at node 80 by diode D 7 , resistor R 18 , and capacitor C 24 .
  • the electrical current signal is received by the operational amplifier 76 which is configured to amplify the sense signal received at node 80 .
  • the operational amplifier 76 can also be configured to serve as a comparator in which an envelope detector voltage is compared against a set threshold to determine whether the receiver is present and output a digital signal (i.e., a “LOW” (binary 0) or “HIGH” (binary 1) signal) to the master control unit 44 .
  • the receiver sensing sub-circuit 42 comprises an electrical impedance signal conversion sub-circuit 82 and sense control sub-circuit 84 .
  • the electrical impedance signal conversion sub-circuit 82 comprises diode D 9 and resistor R 25 which is electrically connected in parallel to capacitor C 34 .
  • the sense control sub-circuit 84 comprises integrated circuit 86 , resistors R 22 -R 27 , and capacitors C 31 -C 33 .
  • the electrical impedance at node 88 is converted to an electrical current signal at node 90 by diode D 9 , resistor R 25 , and capacitor C 34 .
  • the electrical current signal is received by integrated circuit 86 within the sense control sub-circuit 84 .
  • the integrated circuit 86 is configured to convert the electrical current signal into an electrical data signal that sent to the master control unit 44 to notify the presence of the receiver module 14 .
  • FIG. 13 illustrates a block diagram of an embodiment of the receiver module circuit 24 that resides within the receiver module 14 of the present invention.
  • the receiver module circuit 24 is configured to receive electrical power transmitted wirelessly via near field magnetic coupling from the transmitter antenna 20 of the transmitter module 12 .
  • the receiver module circuit 24 comprises the receiver antenna 26 , a receiver impedance matching sub-circuit 92 , a rectifier 94 , and a voltage regulator 96 .
  • the receiver antenna 26 is electrically connected to the receiver impedance matching circuit 92 that is electrically connected to the rectifier 94 and the voltage regulator 96 .
  • the receiver impedance matching circuit 92 is configured to adjust the electrical impedance of the receiver module 14 to match the electrical impedance of the transmitter module 12 .
  • the rectifier 94 is configured to modify the received electrical power from an alternating current electrical power to a direct current electrical power.
  • the voltage regulator 96 is configured to adjust the amplitude of the electrical voltage of the wirelessly received electrical power.
  • FIG. 14 is an electrical schematic diagram of the embodiment of the receiver module circuit 24 shown in FIG. 13 .
  • the receiver antenna 26 comprising inductor L 9 is electrically connected to the impedance matching sub-circuit 92 comprising capacitors C 35 -C 37 .
  • the impedance matching sub-circuit 92 is electrically connected to the rectifier 94 that comprises diodes D 10 -D 13 and the voltage regulator 96 comprising a low dropout linear voltage regulator.
  • FIG. 15 is a block diagram that illustrates an alternate embodiment of the receiver module circuit 24 within the receiver module 14 of the present application.
  • the receiver module circuit 14 comprises the receiver antenna 26 , the electrical impedance matching sub-circuit 92 , a voltage doubler sub-circuit 98 , the voltage regulator 96 and a receiver master control unit 100 .
  • the receiver antenna 26 is electrically connected to the electrical impedance matching circuit 92 which is configured to dynamically adjust and match the electrical impedance of the receiver antenna 26 to a characteristic impedance of the power generator or the load at a driving frequency of the transmitter antenna 20 .
  • the impedance matching circuit 92 is electrically connected to the voltage doubler sub-circuit 98 which is designed to rectify the wirelessly received electrical power from an alternating current electrical power to a direct current electrical power.
  • the voltage doubler circuit 98 is also configured to increase, i.e., double, the voltage of the wirelessly received electrical power.
  • the voltage doubler sub-circuit 98 is electrically connected to the voltage regulator 96 which is designed to further adjust the amplitude of the voltage of the wirelessly received electrical power.
  • the voltage regulator 96 is electrically connected to the receiver master control unit 100 .
  • the receiver master control unit 100 is configured to operate the receiver module circuit 24 within the receiver module 14 .
  • the electrical power wirelessly received from the transmitter module 12 and modified by the receiver module circuit 24 is used to power the host device and/or may be used to electrically charge an electrical storage device 102 , such as an electrochemical cell or capacitor.
  • FIG. 16 illustrates an electrical schematic diagram of the receiver module circuit 24 shown in FIG. 15 .
  • the receiver antenna 26 which comprises inductor L 10
  • the electrical impedance matching sub-circuit 92 which comprises at least one capacitor.
  • the electrical impedance matching sub-circuit 92 comprises capacitors C 40 -C 42 .
  • the electrical impedance matching circuit 92 is electrically connected to the voltage doubler sub-circuit 98 which comprises diodes D 14 , D 15 and capacitor C 43 .
  • incorporación of the voltage doubler sub-circuit 98 within the receiver module circuit 24 rectifies the wirelessly received electrical power and increases the amount of electrical power that can be transmitted across the separation distance 16 between the transmitter and receiver modules 12 , 14 .
  • the voltage regulator sub-circuit 97 which comprises voltage regulator 96 is electrically connected to resistors R 28 -R 30 and capacitors C 44 and C 45 is electrically connected to the voltage doubler sub-circuit 98 .
  • the voltage doubler sub-circuit 98 allows for increased system efficiency due to a decrease in the electrical impedance experienced by the receiver module circuit 24 .
  • Experimental results indicate that incorporation of the voltage doubler sub-circuit 98 within the receiver module circuit 24 decreases the electrical impedance of the circuit 24 from about 301 ⁇ to about 31 ⁇ under a no load condition and decreases the electrical impedance from about 154 ⁇ to about 4.9 ⁇ under full load conditions, a decrease in electrical impedance by as much as 97 percent.
  • the voltage doubler sub-circuit 98 significantly reduces the electrical impedance of the receiver module circuit 24 , incorporation of the voltage doubler sub-circuit 98 within the receiver module circuit 24 thus provides for the transmission of a greater amount of electrical power across a module separation distance 16 at a given frequency. Furthermore, the voltage doubler sub-circuit 98 allows for decreased component sizes and increased system performance. Moreover, the voltage doubler sub-circuit 98 allows for the operation of the system 10 , specifically, wireless transfer of electrical energy and data, across a wider module separation distance 16 in comparison to other rectifying topologies (e.g., a full wave rectifier).
  • rectifying topologies e.g., a full wave rectifier
  • the receiver module 14 of the present invention configured with the voltage doubler sub-circuit 98 enables wireless transfer of electrical energy and/or data across a module separation distance 16 from about 0.5 mm to about 5 mm.
  • a receiver module that is not configured with the voltage doubler sub-circuit 98 allows for the transfer of electrical energy and/or data across a module separation distance 16 from about 0.5 mm to about 2 mm.
  • the voltage doubler sub-circuit 98 thus enables an increase of the module separation distance 16 by about 100 percent or about double the module separation distance 16 .
  • the electrical impedance of the gate driver or FET power stage is reduced allowing for increased wireless electrical power delivery.
  • FIG. 17 illustrates a block diagram of an embodiment of the receiver module circuit 24 of the present application.
  • the receiver module circuit 24 may be configured with a thermal sense sub-circuit 104 .
  • the thermal sense sub-circuit 104 is configured to monitor the temperature within the receiver module 14 .
  • the receiver master control unit 100 through the thermal sense sub-circuit 104 detects that the temperature within the receiver module increases from about 20° C. to about 50° C., the receiver master control unit 100 prevents the operation of the receiver module 14 .
  • the receiver module 14 may be configured to receive and transmit data to and from the transmitter module 12 .
  • the receiver module 14 may be configured to modulate and demodulate data from the transmitter module 12 to enable communication therebetween.
  • the wireless connector system 10 of the present application may be configured for in-band communication, such as in-band amplitude, phase, and/or frequency shift keying communication.
  • the wireless connector system 10 of the present application may be configured for out of band communication.
  • In band communication is based on the transfer of information/data across a wireless power signal.
  • the wireless power signal is the carrier frequency, and the different methods (amplitude, frequency, and phase) modulate this carrier frequency to deliver the data.
  • Out of band communication utilizes an external signal that is separate from the wireless power signal to deliver data/communication.
  • FIGS. 18A-18D illustrate embodiments of impedance matching sub-circuits 40 , 92 which may be utilized within the receiver module circuit 24 and/or the transmitter module circuit 18 .
  • the impedance matching circuit 40 , 92 may comprise two capacitors C 46 and C 48 connected in electrical parallel and a shunt capacitor C 47 electrically connected between capacitors C 46 and C 48 .
  • FIG. 18B illustrates an embodiment in which a shunt capacitor C 50 is electrically connected in parallel between capacitors C 49 and C 51 .
  • FIG. 18C illustrates an embodiment in which the electrical impedance matching circuit may comprise at least one capacitor C 52 electrically connected to the positive side of the receiving or transmitter antenna.
  • FIG. 18D illustrates an embodiment in which two capacitors C 53 and C 54 are each electrically connected to the positive and negative terminals, respectively of the receiving or transmitter antenna.
  • incorporating a shunt capacitor such as those shown in FIG. 18A or 18B enables electrical power to be transmitted across a greater separation distance 16 .
  • the shunt capacitor is used to boost the received voltage into the receiver rectifier 34 in comparison to a series only tuning topology.
  • the shunt capacitor allows the resistance of the antenna to be modified in order to increase the amount of electrical power that can be transferred at a certain distance as well as increase the maximum operating distance of the system.
  • incorporating the shunt capacitor, as shown in FIG. 18A or 18B within the electrical impedance matching sub-circuit 92 of the receiver module circuit 24 enables electrical power to be wirelessly transmitted over a 2 mm separation distance.
  • the inventors have discovered that without the use of a shunt capacitor within the electrical impedance matching sub-circuit 92 of the receiver module circuit 24 of the receiver module 14 , wireless transmission of the electrical power spans a shorter separation distance.
  • the shunt capacitor enables electrical power to be wirelessly transmitted over a separation distance 16 that is about 50 percent longer in comparison to a receiver module that does not comprise a shunt capacitor for the same amount of electrical power transmitted.
  • FIGS. 19-22 illustrate embodiments of the wireless connector system 10 comprising the transmitter module 12 and the receiver module 14 .
  • the transmitter module 12 comprises a transmitter module housing 106 that encases the transmitter module circuit 18 and transmitter antenna 20 therewithin.
  • the receiver module 14 comprises a receiver module housing 108 that encases the receiver module circuit 24 and receiver antenna 26 therewithin.
  • either or both the transmitter module housing 106 and the receiver module housing 108 are hermetically sealed.
  • at least one of the transmitter module housing 106 and the receiver module housing 108 may be composed of a polymeric material, a metal, a ceramic material or combinations thereof.
  • either or both the transmitter module 12 and receiver module 14 may be immersed within an encapsulate material (not shown).
  • the transmitter and receiver modules 12 , 14 are positioned such that the module separation distance 16 spans between the modules 12 , 14 .
  • the module separation distance 16 may range from about 0.1 mm to about 5 mm.
  • the module separation distance or gap 16 between the transmitter and receiver modules 12 , 14 during operation of the system ranges from about 0.1 mm to about 2 mm.
  • the wireless connector system 10 of the present invention is configured to wirelessly transmit between about 1 mW to about 200 mW at a frequency greater than 5 MHz.
  • the wireless connector system 10 is configured to wirelessly transmit between about 1 mW to about 200 mW at a frequency that ranges from about 1 MHz to about 50 MHz between the transmitter and receiver modules 12 , 14 .
  • the wireless connector system 10 may operate at any frequency or frequencies, which may include, but is not limited to, 100 kHz, 6.78 MHz, 10 MHz, 13.56 MHz, 27.12 MHz, 433 MHz, 915 MHz, 1.8 GHz, 2.4 GHz, 60 GHz, and 5.7 GHz.
  • such frequencies may include licensed frequency bands.
  • both the transmitter and receiver modules 12 , 14 are of a compact size.
  • the transmitter module 12 has a length 110 that extends from a transmitter module proximal end 112 to a transmitter module distal end 114 .
  • the transmitter module 12 has a transmitter module width 116 oriented about perpendicular to the length 110 .
  • the receiver module 14 has a receiver module length 120 that extends from a receiver module proximal end 122 to a receiver module distal end 124 .
  • the receiver module 14 comprises a receiver module width 126 oriented about perpendicular to the length 120 .
  • the transmitter module 12 comprises a transmitter module height 118 that extends about perpendicular to transmitter module length 110 .
  • the receiver module 14 comprises a receiver module height 128 that extends about perpendicular to the receiver module length 120 .
  • either or both the transmitter and receiver modules 12 , 14 are configured to be surface mounted.
  • a plurality of brackets 130 mechanically support and electrically connect the modules 12 , 14 to a circuit board 132 of the respective host device.
  • each of the modules 12 , 14 may comprise a plurality of castellations 134 that reside within an exterior surface of the transmitter module housing 106 and/or the receiver module housing 108 . These castellations 134 provide a space within which a surface mount (not shown) may be positioned therewithin to mechanically secure the modules 12 , 14 to a surface and provide an electrical connection to the host device.
  • At least one of the transmitter and receiver modules 12 , 14 comprises a plurality of metal pads 136 positioned at an edge of an exterior surface of the module housing 106 , 108 . These metal pads 136 are designed to provide electrical contact of the module 12 , 14 to a circuit board 132 or host device 22 , 28 .
  • the at least one of the transmitter and receiver modules 12 , 14 may comprise at least one post 138 that outwardly extends from the exterior surface of the module housing 106 , 108 . These posts 138 mechanically support and secure the at least one transmitter module and receiver module 12 , 14 to a circuit board 132 or a host device 22 , 28 .
  • the modules 12 , 14 may be electrically connected to circuit boards of their respective host devices through the use of welding, soldering, fasteners, such as pins, spring contacts, and the like.
  • FIG. 24 illustrates an embodiment of the construction within the housing 106 , 108 of the respective modules 12 , 14 .
  • each of the modules 12 , 14 is constructed with a respective transmitter or receiver antenna 20 , 26 , and a module circuit board residing within the housing 106 , 108 of the transmitter or receiver module 12 , 14 .
  • a transmitter module circuit board 140 resides within the transmitter module housing 106 and a receiver module circuit board 142 resides within the receiver module housing 108 .
  • the transmitter antenna 20 and receiver antenna 26 resides within the housing 106 , 108 at the distal end of their respective modules 12 , 14 .
  • the transmitter module circuit board 140 and the receiver module circuit board 142 reside within their respective transmitter module and receiver module housing 106 , 108 at the proximal end of their respective modules 12 , 14 .
  • the transmitter antenna 20 is electrically connected to the transmitter module circuit board 140 and the receiver antenna 26 is electrically connected to the receiver module circuit board 142 using a flex connector, a board to board connector, a pin and socket connector, a spring contact connector, a pogo pin connector, a through-hole pin solder connector, a soldered wire connection, or a combination thereof.
  • At least one of the transmitter and receiver modules 12 , 14 may be constructed having a spacer 144 composed of an electrically insulating, non-magnetic material positioned within the housing 106 , 108 of the transmitter or receiver module 12 , 14 .
  • the at least one spacer 144 is positioned between the transmitter or receiver module circuit board 140 , 142 and the transmitting or receiving antenna 20 , 26 , respectively within the housing 106 , 108 .
  • at least one shielding material 146 may be positioned within the housing 106 , 108 of either or both the transmitter and receiver modules 12 , 14 .
  • the at least one shielding material 146 is positioned between the transmitter or receiver module circuit board 140 , 142 and the transmitter or receiver antenna 20 , 26 , respectively within the housing 106 , 108 . In an embodiment, the at least one shielding material 146 may be positioned between the transmitter or receiver module circuit board 140 , 142 and the at least one spacer 144 . In an embodiment, the at least one shielding material 146 may be positioned between the at least one spacer 144 and the transmitter or receiver module antenna 20 , 26 . As illustrated in the example shown in FIG. 25 , the transmitter or receiver antenna 20 , 26 is positioned at the distal end of the respective modules 12 , 14 .
  • a spacer 144 is positioned proximal of the antenna 20 , 26 , the shielding material 146 is positioned proximal of the spacer 144 and the transmitter or receiver module circuit board 140 , 142 is positioned at the proximal end of the module 12 , 14 .
  • the respective antennas 20 , 26 of the transmitter and receiver modules 12 , 14 are positioned facing each other across the module separation distance 16 .
  • Table I below further illustrates the various sequences of positions within the housing 106 , 108 . It is noted that Position 1 is the proximal end 112 , 122 of the module and Position 4 is the distal end 114 , 124 of the module 12 , 14 , respectively. Position 2 is distal of Position 1 and Position 3 is distal of Position 2.
  • the circuit board may either be the transmitter module circuit board 140 or the receiver module circuit board 142
  • the antenna may either be the transmitter antenna 20 or the receiver antenna 26 .
  • the spacer 144 may comprise an electrically insulative material such as air, FR4, a polymeric material or a combination thereof.
  • the shielding material 146 may comprise a ferrite material, a metal, or a combination thereof. It is noted that positioning the shielding material 146 closer to the transmitter or receiver antenna 20 , 26 , such as detailed in Examples 3 and 4, of Table I, provides an increase in electrical inductance that results in an improved mutual inductance between transmitter and receiver modules 12 , 14 .
  • the electrically conductive bracket 130 electrically connects the circuit boards 140 , 142 of the respective transmitter and receiver modules 12 , 14 to the host device.
  • the host device is a circuit board.
  • FIG. 26 illustrates a further embodiment in which the electrically conductive bracket 130 is positioned between position 1 and position 2.
  • the bracket 130 is positioned between the transmitter or receiver circuit board 140 , 142 and the shielding material 146 .
  • the bracket 130 may be positioned between the transmitter or receiver circuit board 140 , 142 and the spacer 144 .
  • FIGS. 27-34 illustrate an alternate embodiment of a transmitter module 148 and a receiver module 150 having a hybrid rigid flex printed circuit board construction.
  • a module power circuit board of either a transmitter module power circuit board 152 or a receiver module power circuit board 154 is electrically connected to an antenna assembly of either a transmitter antenna assembly 156 or a receiver antenna assembly 158 , respectively ( FIG. 27 ).
  • An electrical bridge or electrical connector 160 extends between and electrically connects the antenna assembly 156 , 158 and the module power circuit board 152 , 154 .
  • This construction can also be used to provide a connection between the transmitter module circuit board 140 and the transmitter antenna 20 , and/or the receiver module circuit board 142 and the receiver antenna 26 by encapsulating one or more flexible printed circuit (FPC) layers that comprise the transmitter or receiver antenna 20 , 26 inside one or more rigid (FR4) circuit board layers.
  • FPC flexible printed circuit
  • FIG. 27 illustrates an embodiment of the components that comprise the transmitter or receiver module 148 , 150 having a hybrid rigid flex printed circuit board construction of the present invention.
  • the module power circuit board of either the transmitter module power circuit board 152 or the receiver module power circuit board 154 is electrically connected to the antenna assembly of either the transmitter antenna assembly 156 or the receiver antenna assembly 158 , respectively, by the electrical connector 160 .
  • the electrical bridge or electrical connector 160 is flexible and is capable of bending.
  • the electrical bridge or electrical connector 160 comprises one or more sheets of copper, a circuit connector ribbon, flexible ribbon, an electrical flex connector, an electrically conductive ribbon, or combinations thereof.
  • the transmitter module power circuit board 152 and the receiver module power circuit board 154 comprise a substrate 166 such as FR4 or printed circuit board that is substantially rigid and supports a variety of transmitter module power circuit board electrical components 162 or receiver module power circuit board electrical components 164 .
  • these electrical components 162 , 164 may be surface mounted to an exterior surface of the transmitter module power circuit board 152 and the receiver module power circuit board 154 , respectively.
  • the transmitter and receiver antenna assemblies 156 , 158 comprises a substrate 168 , such as a rigid printed circuit board or FR4 board that supports the transmitter or receiver antenna 20 , 26 . As illustrated in FIG. 27 , the substrate 168 supports either the transmitter or receiver antenna 20 , 26 .
  • a shielding material 170 such as a layer of ferrite material, is positioned over the transmitter or receiver antenna 20 , 26 . In an embodiment, the shielding material 170 , such as a sheet of ferrite material may be laminated or adhered to the transmitter or receiver antenna 20 , 26 with an adhesive.
  • the antenna assembly 156 , 158 is folded over the module power circuit board 152 , 154 , to form a transmitter module assembly 172 or a receiver module assembly 174 , respectively.
  • a second shielding material 176 such as a ferrite material, may be positioned between the antenna assembly 156 , 158 and the module power circuit board 152 , 154 .
  • FIG. 29 illustrates an exploded view of an embodiment of the transmitter module 148 or the receiver module 150 of the present application comprising the receiver or transmitter module assembly 172 , 174 respectively.
  • the transmitter 148 and/or the receiver module 150 comprise a spacer or housing structure 178 that separates the transmitter or receiver antenna assembly 156 , 158 from the transmitter or receiver module power circuit board 152 , 154 , respectively.
  • the housing structure 178 may provide a space therewithin in which the transmitter or receiver module assembly 172 , 174 is positioned.
  • the housing structure 178 comprises an electrically insulative material and acts as a spacer that separates the transmitter or receiver module assembly 172 , 174 from additional shielding material that may be positioned on an exterior surface of the housing structure 178 .
  • a third and fourth shielding material 180 , 182 such as a ferrite material, may be positioned on the exterior surface of the housing structure 178 .
  • a layer of a rigid circuit board material 184 may be positioned in contact with the third and fourth shielding materials 180 , 182 to provide added structural support.
  • the transmitter module 148 or the receiver module 150 may comprise a retention fastener 186 and/or a locating post 188 that outwardly extend from the housing sidewall.
  • the retention fastener 186 and/or the locating post 188 are used to precisely position the module 148 , 150 on the transmitter module or receiver module host device 22 , 28 , such as a printed circuit board.
  • the retention fastener 186 and/or the locating post 188 retain the transmitter module 12 and/or the receiver module 14 to the respective host device 22 , 28 .
  • the retention fastener 186 and/or the locating post 188 may be electrically connected to the respective host device 22 , 28 .
  • FIG. 30 illustrates an embodiment of an assembled transmitter or receiver module 148 , 150 comprising two retention fasteners 186 and the locating post 188 that outwardly extend from the module housing structure 178 .
  • the housing structure 178 is positioned between the transmitter or receiver module power circuit board 152 , 154 and the transmitter or receiver antenna assembly 156 , 158 .
  • the retention fasteners 186 improve component retention that provides for balanced soldering and helps prevent potential component delamination during a solder reflow process.
  • the retention fasteners 186 and the locating post 188 provide alignment guides for installation of the modules 148 , 150 .
  • FIG. 30A illustrates a cross-sectional view of the embodiment of the assembled module 12 , 14 shown in FIG. 30 .
  • the module circuit board 140 , 142 is positioned opposed from the antenna assembly 156 , 158 .
  • the module spacer or housing structure 178 is positioned therebetween.
  • the spacer 178 may be of a solid structure having various cutouts for the positioning of the electrical components 162 , 164 .
  • the spacer 178 may be constructed having a void space therewithin for the positioning of the electrical components 162 , 164 .
  • the spacer 178 may be constructed having a void space therewithin for the positioning of the module circuit board 140 , 142 and the antenna assembly 156 , 158 .
  • an adhesive layer 187 may be to adhere the module circuit board 140 , 142 and the antenna assembly 156 , 158 to the spacer 178 .
  • FIGS. 31-34 illustrate various embodiments of the transmitter and receiver modules 148 , 150 shown in FIGS. 27-30 , mounted to a host device 22 , 28 such as a circuit board.
  • the modules 148 , 150 may comprise a plurality of pads 190 that are electrically connected to the host device circuit board.
  • the modules 148 , 150 may comprise alignment legs 192 ( FIG. 34 ) that outwardly extend from the housing structure 178 .
  • the alignment legs 192 provide an additional alignment aid and provide additional mechanical stability when the modules 148 , 150 are mounted into an opening in the board 194 of the host device 22 , 28 .
  • the transmitter and receiver modules 148 , 150 may be positioned within an opening 194 that extends through the thickness of the host device circuit board 22 , 28 .
  • FIG. 35 illustrates a top view of an embodiment of an antenna 20 , 26 that may be used with either of the transmitter module 12 , 148 or the receiver module 14 , 150 .
  • the antenna 20 , 26 is of a flat spiral coil configuration.
  • the antenna comprises four layers of alternating of an electrical conductor and electrically insulating layers integrated into a printed circuit board (PCB) or flexible circuit board (FPC).
  • the antenna 20 , 26 comprises two antenna segments that are electrically connected in series.
  • the antenna 20 , 26 is constructed having five turns of a copper trace 196 deposited on the surface of an insulative substrate 198 with a gap 200 of 15 to 200 microns between each trace 196 .
  • Each segment comprises an electrical conductor (e.g., trace 196 ) positioned on an insulative substrate 198 in an electrical parallel configuration.
  • an electrical conductor e.g., trace 196
  • Non-limiting examples can be found in U.S. Pat. App. Nos. 2017/0040690, 2017/0040692, 2017/0040107, 2017/0040105, 2017/0040696, and 2017/0040688 all to Peralta et al., 2017/0040691, 2017/0040694 to Singh et al., 2017/0040693 to Luzinski and 2017/0040695 to Rajagopalan et al. all of which are assigned to the assignee of the present application and incorporated fully herein.
  • the antenna 20 , 26 may be constructed having a multi-layer-multi-turn (MLMT) construction in which at least one insulator is positioned between a plurality of conductors.
  • MLMT multi-layer-multi-turn
  • the wireless connector system 10 is designed to operate in an efficient, stable and reliable manner to satisfy a variety of operating and environmental conditions.
  • the system is designed to operate in a wide range of thermal and mechanical stress environments so that data and/or electrical energy is transmitted efficiently and with minimal loss.
  • the wireless connector system 10 is designed with a small form factor using a fabrication technology that allows for scalability, and at a cost that is amenable to developers and adopters.
  • the wireless connector system 10 is designed to operate over a wide range of frequencies to meet the requirements of a wide range of applications.
  • the system may transmit electrical power on the order of about 100 ⁇ W to about 10 W. In another embodiment, electrical power around about 100 W may also be transmitted.
  • NFMC near field magnetic coupling
  • the material may be a sintered flexible ferrite sheet or a rigid shield and be composed of varying material compositions. Examples of materials may include, but are not limited to, zinc comprising ferrite materials such as manganese-zinc, nickel-zinc, copper-zinc, magnesium-zinc, and combinations thereof.
  • a hybrid Litz wire and PCB coil antenna construction combination may be necessary to efficiently transfer power.
  • a hybrid Litz wire and PCB coil combination may comprise the transmitter antenna 20 or the receiver antenna 26 of a wrapped Litz wire construction and the other of the transmitter antenna 20 or the receiver antenna 26 may be constructed having a coil disposed on a surface of a circuit board such as the antenna shown in FIG. 35 .
  • Lower operating frequencies on the order of 100 kHz to several MHz range may require a certain mutual inductance between the transmitter and receiver antenna 20 , 26 . This is attainable by using a transmitter antenna 20 of a Litz wire construction having a novel ferrite core in combination with a receiver antenna 26 comprising a coil disposed on a surface of a circuit board, such as the antenna shown in FIG. 35 .
  • the coupling and/or inductance of the transmitter module 12 , 148 or the receiver module 14 , 150 must be increased.
  • coupling is limited by the physical size of the connector modules. It is noted that using transmitter and receiver antennas 20 , 26 of a construction comprising a coil disposed on the surface of a circuit board, such as the antenna shown in FIG. 35 , may increase inductance and increase the resistance of the antenna coils thereby decreasing the quality factor Q and antenna to antenna efficiency.
  • the wireless connector system 10 comprising a transmitter module 12 , 148 having a transmitter antenna 20 of a Litz-wire construction and a shielding material and a receiver module 14 , 150 having a receiver antenna 26 comprising a coil disposed on a surface of a circuit board ( FIG. 35 ) may be used to increase the coupling and mutual inductance of a small form factor of the wireless connector system 10 .
  • this configuration may be used to achieve the necessary power transfer while maintaining high Q factor at lower frequencies. These improvements may also increase the overall performance of the wireless connector system 10 having a relatively small form factor.
  • this particular antenna topology is beneficial.
  • Table II illustrates the improvement in mutual inductance.
  • Table III illustrates the improvement in coupling and Table IV illustrates the improvement in antenna to antenna efficiency.
  • shielding material is a material that captures a magnetic field.
  • An example of which is a ferrite material.
  • a sheet of ferrite material is positioned directly adjacent to the transmitter antenna 20 , for example, behind the transmitter antenna 20 .
  • a “T-Core” shielding material is a magnetic field shield assembly comprising a sheet of shielding material, such as a ferrite material, placed directly behind the transmitter or receiver antenna 20 , 26 and an additional second shielding material, such as a ferrite material, placed within the inside area of a coil in the plane of the transmitter or receiver antenna 20 , 26 .
  • the transmitter module 12 , 148 or the receiver module 14 , 150 may be constructed having the respective transmitter or receiver antennas 20 , 26 comprising a “C-core” shielding material in which the shielding material, such as a ferrite material, configured similarly to the letter “C”, is positioned adjacent to the antenna 20 , 26 .
  • the transmitter module 12 , 148 or the receiver module 14 , 150 may be constructed having the respective transmitter or receiver antennas 20 , 26 comprising a “E-core” shielding material in which the shielding material, such as a ferrite material, configured similarly to the letter “E”, is positioned adjacent to the antenna 20 , 26 .
  • the wireless connector system 10 rated for a maximum 200 mW received DC power can be configured having each transmitter module 12 , 148 and receiver module 14 , 150 comprise a form factor of about 11 mm ⁇ 4 mm, and operate at a frequency that ranges from about 2 MHz to 30 MHz.
  • wire wound Litz antenna coils may not be suitable in terms of performance.
  • PCB/FPC printed circuit board/flex printed circuit board
  • coil-antennas allow for appropriate stackups, appropriate trace widths, gap widths and copper (or other conductive material) depths that are more suitable for higher frequencies.
  • printed circuit board and flex printed circuit board based coil-antennas are highly integrated into the PCB fabrication process, thereby allowing for integration with the rest of the circuitry. This also allows for the integration of MLMT antenna designs to reduce ESR and improve the Q of the antennas.
  • utilizing coils in a layered approach allows for other fabrication processes, for example, printing, printing on fabrics, semiconductor fabrication processes, such as a low temperature co-fired ceramic (LTCC) process, a high temperature co-fired ceramic (HTCC) process, and the like.
  • LTCC low temperature co-fired ceramic
  • HTCC high temperature co-fired ceramic
  • PCB coil antennas offer additional benefits from a manufacturing, cost and assembly standpoint compared to wire-wound antenna coil solutions. For applications with a strict requirement for overall assembly thickness, printed circuit board (PCB) coil antennas are preferred due to the reduced thickness possible even with multilayer construction.
  • the material may be a sintered flexible ferrite sheet or a rigid shield and be composed of varying material compositions.
  • the construction of the antenna 20 , 26 is non-limiting.
  • the antenna that is incorporated within a module may comprise magnetic wires or have a stamped metal construction.
  • the antenna 20 , 26 may utilize thick film, thin film or other printing fabrication technologies in its construction.
  • incorporation of a transmitter or receiver antenna 20 , 26 having a multi-layer-multi-turn (MLMT) construction significantly reduces the equivalent series resistance (ESR) of the respective transmitter module 12 , 148 and receiver modules 14 , 150 and the wireless connector system 10 of the present invention.
  • the inventors have discovered that incorporation of at least one transmitter and receiver antenna 20 , 26 having a multi-layer-multi-turn (MLMT) construction reduces equivalent series resistance (ESR) of the transmitter or receiver module 12 , 14 by about 50 percent.
  • ESR equivalent series resistance
  • Exemplary ways of connecting the module to a host device include, but are not limited to, directly soldering or placing the at least one transmitter module 12 , 148 and receiver module 14 , 150 on a circuit board or a host device 22 , 28 .
  • the at least one transmitter module 12 , 148 and receiver module 14 , 150 could be connected to a circuit board or a host device 22 , 28 using a wire/cable.
  • the full structure or at least a portion of the structure of the at least one transmitter module 12 , 148 and receiver module 14 , 150 may be encapsulated within an insulative coating.
  • the operating procedure for the transmitter module 12 , 148 that comprises a single antenna element may have the following operating process.
  • the wireless connector system 10 is a unidirectional power transfer system at a frequency, for example at 2.4 GHz.
  • the receiver module 14 , 150 is brought in the vicinity of the transmitter module 12 , 148 .
  • the receiver sensing sub-circuit 42 within the transmitter module 12 , 148 detects the presence of the receiver module 14 , 150 .
  • the master control unit (MCU) 44 within the transmitter module 12 , 148 activates the system 10 , and an identification stage is initiated.
  • the identification stage could be important to distinguish between a spurious sense signal versus a sense signal detecting a true receiver module 14 , 150 .
  • the identification could also be important to determine the specific type of the receiver module 14 , 150 that would indicate to the transmitter module 12 , 148 and the host device 22 what amount of power and type of data to transmit.
  • the transmitter module 12 , 148 starts transmitting power.
  • the transmission of electrical power could cease under several conditions, including but not limited to:
  • the above exemplary process is for a case when the transmitter module 12 , 148 is configured as a single-purpose (only transmits) and the receiver module 14 , 150 is configured as a single purpose (only receives), and there exists a single antenna element for each transmitter module 12 , 148 and receiver module 14 , 150 . In other words, this is a unidirectional wireless power system.
  • the wireless connector system 10 of the present application could include a module that can operate both as a transmitter and as a receiver, i.e. a transceiver.
  • the wireless connector system 10 of the present application may comprise a power and data transfer system in addition to a single antenna where the data is modulated into the power frequency.
  • the wireless connector system 10 of the present invention may comprise multiple antennas within each transmitter module 12 , 148 and receiver modules 14 , 150 . If a multiple antenna system is employed, then the first antenna could be reserved for identification, diagnostics and any uni- or bi-directional data transfer, while the second antenna can be dedicated to power transfer.
  • the reliability and repeatability of the receiver module presence sensing capability could be improved by using a calibration method, as described in the following steps.
  • the phrase “at least one of” preceding a series of items, with the term “and” or “or” to separate any of the items, modifies the list as a whole, rather than each member of the list (i.e., each item).
  • the phrase “at least one of” does not require selection of at least one of each item listed; rather, the phrase allows a meaning that includes at least one of any one of the items, and/or at least one of any combination of the items, and/or at least one of each of the items.
  • phrases “at least one of A, B, and C” or “at least one of A, B, or C” each refer to only A, only B, or only C; any combination of A, B, and C; and/or at least one of each of A, B, and C.
  • a processor configured to monitor and control an operation or a component may also mean the processor being programmed to monitor and control the operation or the processor being operable to monitor and control the operation.
  • a processor configured to execute code can be construed as a processor programmed to execute code or operable to execute code.
  • a phrase such as “an aspect” does not imply that such aspect is essential to the subject technology or that such aspect applies to all configurations of the subject technology.
  • a disclosure relating to an aspect may apply to all configurations, or one or more configurations.
  • An aspect may provide one or more examples of the disclosure.
  • a phrase such as an “aspect” may refer to one or more aspects and vice versa.
  • a phrase such as an “embodiment” does not imply that such embodiment is essential to the subject technology or that such embodiment applies to all configurations of the subject technology.
  • a disclosure relating to an embodiment may apply to all embodiments, or one or more embodiments.
  • An embodiment may provide one or more examples of the disclosure.
  • a phrase such an “embodiment” may refer to one or more embodiments and vice versa.
  • a phrase such as a “configuration” does not imply that such configuration is essential to the subject technology or that such configuration applies to all configurations of the subject technology.
  • a disclosure relating to a configuration may apply to all configurations, or one or more configurations.
  • a configuration may provide one or more examples of the disclosure.
  • a phrase such as a “configuration” may refer to one or more configurations and vice versa.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Near-Field Transmission Systems (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
US15/686,973 2016-08-26 2017-08-25 Wireless Connector Receiver Module Circuit Abandoned US20180062434A1 (en)

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US15/686,973 US20180062434A1 (en) 2016-08-26 2017-08-25 Wireless Connector Receiver Module Circuit

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US201662379940P 2016-08-26 2016-08-26
US15/686,973 US20180062434A1 (en) 2016-08-26 2017-08-25 Wireless Connector Receiver Module Circuit

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US20180062434A1 true US20180062434A1 (en) 2018-03-01

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US15/686,973 Abandoned US20180062434A1 (en) 2016-08-26 2017-08-25 Wireless Connector Receiver Module Circuit
US15/687,051 Active 2037-12-19 US11011915B2 (en) 2016-08-26 2017-08-25 Method of making a wireless connector transmitter module
US15/687,060 Active 2038-06-19 US10916950B2 (en) 2016-08-26 2017-08-25 Method of making a wireless connector receiver module
US15/686,961 Abandoned US20180062398A1 (en) 2016-08-26 2017-08-25 Wireless Connector Transmitter Module Circuit
US15/687,041 Active 2038-04-09 US10897140B2 (en) 2016-08-26 2017-08-25 Method of operating a wireless connector system
US15/687,024 Active 2038-05-29 US10931118B2 (en) 2016-08-26 2017-08-25 Wireless connector transmitter module with an electrical connector
US15/686,920 Active 2038-08-18 US10938220B2 (en) 2016-08-26 2017-08-25 Wireless connector system
US15/686,998 Active 2038-07-07 US10879704B2 (en) 2016-08-26 2017-08-25 Wireless connector receiver module
US15/687,035 Active 2038-07-16 US10879705B2 (en) 2016-08-26 2017-08-25 Wireless connector receiver module with an electrical connector
US15/686,986 Active 2038-06-18 US10886751B2 (en) 2016-08-26 2017-08-25 Wireless connector transmitter module
US15/686,940 Active 2038-01-08 US10903660B2 (en) 2016-08-26 2017-08-25 Wireless connector system circuit
US17/188,877 Active 2039-06-26 US12327931B2 (en) 2016-08-26 2021-03-01 Wireless connector system
US19/030,823 Pending US20250239769A1 (en) 2016-08-26 2025-01-17 Wireless Connector System

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US15/687,051 Active 2037-12-19 US11011915B2 (en) 2016-08-26 2017-08-25 Method of making a wireless connector transmitter module
US15/687,060 Active 2038-06-19 US10916950B2 (en) 2016-08-26 2017-08-25 Method of making a wireless connector receiver module
US15/686,961 Abandoned US20180062398A1 (en) 2016-08-26 2017-08-25 Wireless Connector Transmitter Module Circuit
US15/687,041 Active 2038-04-09 US10897140B2 (en) 2016-08-26 2017-08-25 Method of operating a wireless connector system
US15/687,024 Active 2038-05-29 US10931118B2 (en) 2016-08-26 2017-08-25 Wireless connector transmitter module with an electrical connector
US15/686,920 Active 2038-08-18 US10938220B2 (en) 2016-08-26 2017-08-25 Wireless connector system
US15/686,998 Active 2038-07-07 US10879704B2 (en) 2016-08-26 2017-08-25 Wireless connector receiver module
US15/687,035 Active 2038-07-16 US10879705B2 (en) 2016-08-26 2017-08-25 Wireless connector receiver module with an electrical connector
US15/686,986 Active 2038-06-18 US10886751B2 (en) 2016-08-26 2017-08-25 Wireless connector transmitter module
US15/686,940 Active 2038-01-08 US10903660B2 (en) 2016-08-26 2017-08-25 Wireless connector system circuit
US17/188,877 Active 2039-06-26 US12327931B2 (en) 2016-08-26 2021-03-01 Wireless connector system
US19/030,823 Pending US20250239769A1 (en) 2016-08-26 2025-01-17 Wireless Connector System

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