WO2021112669A1 - A usb communication port - Google Patents

A usb communication port Download PDF

Info

Publication number
WO2021112669A1
WO2021112669A1 PCT/NL2020/050747 NL2020050747W WO2021112669A1 WO 2021112669 A1 WO2021112669 A1 WO 2021112669A1 NL 2020050747 W NL2020050747 W NL 2020050747W WO 2021112669 A1 WO2021112669 A1 WO 2021112669A1
Authority
WO
WIPO (PCT)
Prior art keywords
usb
coupling portion
communication port
winding
female connector
Prior art date
Application number
PCT/NL2020/050747
Other languages
French (fr)
Inventor
Jan Abraham Ferreira
Original Assignee
Universiteit Twente
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 Universiteit Twente filed Critical Universiteit Twente
Publication of WO2021112669A1 publication Critical patent/WO2021112669A1/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/382—Information transfer, e.g. on bus using universal interface adapter
    • G06F13/385—Information transfer, e.g. on bus using universal interface adapter for adaptation of a particular data processing system to different peripheral devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • H01F27/366—Electric or magnetic shields or screens made of ferromagnetic material
    • 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
    • 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
    • H01F2038/143—Inductive couplings for signals

Definitions

  • the invention relates to a USB communication port com prising a male connector and a female connector and equipped to transfer information between the male connector and the fe male connector.
  • USB connectors or communication ports are abundantly applied in telecommunication devices, including laptops and smart phones.
  • USB Universal Serial Bus
  • USB Type-C transfers data with rates up to 10 Gbit/s and provides up to 100 watts of power.
  • the batteries of new model laptops are charged by USB-C.
  • USB-C The trend is definitely that USB becomes the dominating means to distribute power and data between elec tronic devices. This underscores the necessity to seek a solu tion for accidents wherein the operation of the USB communica tion port is impaired by the influence of water, and in gen eral to make such USB communication ports more resistive against the influence of corrosion.
  • USB communication port is therefore proposed with the features of one or more of the ap pended claims.
  • the male connector of the port is equipped with a first coupling portion and the female connector of the port is equipped with a second coupling portion, wherein the first coupling portion and the second coupling portion are arranged to wirelessly transfer data and/or electrical energy between the first cou pling portion and the second coupling portion.
  • first coupling portion and the second coupling portion are embodied with op tical couplers.
  • first coupling portion and the second coupling portion are magnetic coupling means, preferably electrical windings for generating a magnetic field which can be used for transfer of electrical energy and for transfer of electronic data.
  • the advantage of such magnetic field coupling is that it is less affected by the accumulation of dirt on the contact surfaces.
  • each of the first coupling portion and the second coupling portion comprises an electrical power winding and an electrical data winding.
  • Using a separate elec trical power winding and a separate electrical data winding avoids that in particular the data transfer will be compro mised or corrupted.
  • each coupling portion is provided with a core of magnetically permeable material.
  • the magnetic cores thus couple the magnetic flux between the elec trical power windings.
  • At least one of the first coupling portion and the second cou pling portion is provided with a magnetic shield so as to pro vide that the electrical power winding and the electrical data winding in the first coupling portion and second coupling por tion are magnetically shielded with respect to each other.
  • the magnetic coupling between the data coils is partly through the air, in the space between them and through the magnetic shields on the back side of the coils.
  • the magnetic shields assist the magnetic coupling between the data coils and limits possible electromagnetic interference (EMI) due to the high frequency magnetic fields leaking out to the environ ment.
  • EMI electromagnetic interference
  • the magnetic shield in the first coupling portion of the male connector is provided cen trally in the male connector wherein the electrical power winding and the electrical data winding are on opposite sides of the magnetic shield.
  • the second coupling portion of the female connector is provided with a sleeve to receive the male con nector, wherein the electrical power winding and the electri cal data winding of the second coupling portion are provided on opposite sides of the sleeve so as to avoid crosstalk be tween the electrical power winding and the electrical data winding.
  • the sleeve is provided within a core of magnetically permeable material for the electrical power wind ing of the female connector.
  • FIG. 1 shows an electronic device with a USB commu nication port according to the invention
  • -figure 2 shows a schematic of the USB communication port of the invention
  • -figure 3 shows a top cross-sectional view of the USB communication port of the invention
  • -figure 4 shows a cross-sectional view of the male connector of the USB communication port of the invention.
  • -figure 5 shows a cross-sectional view of the female connector of the USB communication port of the invention.
  • Figure 1 depicts an electronic device 1 which can for example be a computer, laptop, smartphone or a camera that comprises a wireless USB female connector for data and power exchange.
  • Figure 1 further shows a USB male connector 5 with a cable 2 for data and power exchange that is connectable to the USB female connector 4 of the electronic device 1.
  • the connec tion between the USB female connector 4 and the USB male con nector 5 is preferably realized by means of magnetic couplings as will be further explained hereinafter.
  • the USB communication port 4, 5 is capable of operating in a wet or corrosive environment 3.
  • the electronic circuitry of the USB male connector 5 and USB female connector 4 is provided on printed circuit boards (PCBs).
  • Figure 2 shows for clarity only the parts of the PCBs that are responsible for the USB compatible data and power transfer between the USB female connector 4 of the elec tronic device 1 to the USB male connector 5 connected to the cable 2.
  • the USB male connector 5 has a plug 6 which comprises an extension of a multilayered PCB or a separate PCB daughter board.
  • Figure 2 shows that a planar ferrite magnetic core 9 is inserted on the USB female connector PCB 4 coinciding with the position where a plug 6 of the USB male connector 5 is in serted.
  • the USB female connector 4 and the USB male connector 5 both contain electronic controllers 7, 8 that generate the alter nating current AC that is applied to the electrical power winding 12 and electrical data winding 13. These controllers 7, 8 are also responsible for generating USB compatible sig nals.
  • the AC on the electrical power winding 12 will typically be a few MHz and the data AC on the electrical data winding 13 will be tenths of MHz.
  • the implementation of the male and fe male electronic controllers 7, 8 involves state of art elec tronic circuitry known to the skilled person, so that that a further detailed discussion thereof can be dispensed with.
  • FIG 3 shows that the USB female connector 4 and the USB male connector 5 each comprise an electrical power winding 12 and an electrical data winding 13, thus forming part of the first coupling portion and the second coupling portion. It is further depicted that the electrical power winding 12 of both the USB female connector 4 and the USB male connector 5 is provided with a core 10, 11 of magnetically permeable material.
  • the power transfer electrical coil windings 12 that are shown in figure 3 are constructed with one or more turns; one winding is placed in the PCB of the USB male connector 5 and a second winding is placed in the PCB of the USB female connector 4.
  • PCB tracks shaped as spiral coils are placed on another layer of the two multi-layer PCBs of the USB female connector 4 and the USB male connector 5; and this full spiral winding is fitted within a winding 13 window.
  • the on the plug 6 of the USB male connector 5 situated coil 13 is coupled magnetically with the corresponding coil 13 of the USB female connector 4 for the transfer of data.
  • the magnetic flux of the electric power windings 12 and the electric data windings 13 are decoupled; the power flux goes through the center and outer legs of the core 10, 11; while the data flux goes through the middle of the window of the electrical data winding 13.
  • Figure 4 shows a cross-sectional view of the PCB of the USB male connector 5
  • Figure 5 shows a cross-sectional view of the PCB of the USB female connector 4.
  • the magnetic core 10, 11 encloses the electrical power windings 12, placed at the bottom of both the USB male connector 5 and the USB female connector 4.
  • Figure 4 shows that a magnetic shield 15 forms part of the first coupling portion of the USB male connector 5 and is provided centrally in the USB male connector 5, whereas the electrical power winding 12 and the electrical data winding 13 are on opposite sides of the magnetic shield 15.
  • the electri cal data windings 13 on the other hand are placed at the top in the USB communication port 4, 5. Provision is made for a current return path 14 for the electrical data wiring 12 to the electrical power winding 12 conductor layer.
  • the data coil induced magnetic flux crosses vertically orthogonally to the spiral coils and returns through the magnetic shield 15 pro vided in the USB male connector 5.
  • the magnetic shield 15 is preferably made from magnetic material of substantially lower permeability than the main power core 10, 11, in order to avoid that the flux associated with the power coil saturates the magnetic shield 15.
  • Figure 5 depicts that the USB female connector 4 is provided with a sleeve 18 to receive the USB male connector 5, wherein the electrical power winding 12 and the electrical data winding 13 of the second coupling portion are provided on opposite sides of the sleeve. It further shows that the sleeve is provided within a core 10 of magnetically permeable mate rial for the electrical power winding 12 of the USB female connector 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

A USB communication port comprising a USB male connector (5) and a USB female connector (4) and equipped to transfer information between the USB male connector (5) and the USB female connector (4), wherein the USB male connector (5) is equipped with a first coupling portion and the USB female connector (4) is equipped with a second coupling portion, wherein the first coupling portion and the second coupling portion are arranged to wirelessly transfer data and/or electrical energy between the first coupling portion and the second coupling portion.

Description

A USB communication port
The invention relates to a USB communication port com prising a male connector and a female connector and equipped to transfer information between the male connector and the fe male connector.
USB connectors or communication ports are abundantly applied in telecommunication devices, including laptops and smart phones.
Laptops and smartphones are expensive and one of the worst things that can happen to the owner of a 500 or 1000 Euro device is that it falls in the water. Electricity and wa ter are an unhappy marriage. Although electronic devices such as smart phones, tablets and laptop computers can be sealed to keep the water out and the electronic circuitry dry, the ex ternal plugs and sockets still use exposed copper contacts to electrically connect the plug and the socket. If the USB, DMI or power port on the electronic devices get wet they do not function because (ionized) water conducts electricity, which will impair the operation of these ports.
The Universal Serial Bus (USB) communication port has become the most commonly used means to connect electronic de vices because it combines data transfer and power delivery.
The capability of USB is systematically upgraded and in 2014, the USB-IF announced USB Type-C. USB Type-C transfers data with rates up to 10 Gbit/s and provides up to 100 watts of power. As a result the batteries of new model laptops are charged by USB-C. The trend is definitely that USB becomes the dominating means to distribute power and data between elec tronic devices. This underscores the necessity to seek a solu tion for accidents wherein the operation of the USB communica tion port is impaired by the influence of water, and in gen eral to make such USB communication ports more resistive against the influence of corrosion.
According to the invention a USB communication port is therefore proposed with the features of one or more of the ap pended claims.
According to a first aspect of the invention the male connector of the port is equipped with a first coupling portion and the female connector of the port is equipped with a second coupling portion, wherein the first coupling portion and the second coupling portion are arranged to wirelessly transfer data and/or electrical energy between the first cou pling portion and the second coupling portion. This arrange ment enables that the male connector and the female connector can be sealed without adversely affecting the transfer of en ergy or data between the male connector and the female con nector.
It is possible that at least part of the first cou pling portion and second coupling portion is embodied with op tical couplers. In a preferred arrangement however the first coupling portion and the second coupling portion are magnetic coupling means, preferably electrical windings for generating a magnetic field which can be used for transfer of electrical energy and for transfer of electronic data. The advantage of such magnetic field coupling is that it is less affected by the accumulation of dirt on the contact surfaces.
Suitably further each of the first coupling portion and the second coupling portion comprises an electrical power winding and an electrical data winding. Using a separate elec trical power winding and a separate electrical data winding avoids that in particular the data transfer will be compro mised or corrupted.
To promote and support the transfer of electrical en gineering through the USB communication port it is desirable that the electrical power winding of each coupling portion is provided with a core of magnetically permeable material. The magnetic cores thus couple the magnetic flux between the elec trical power windings.
To secure the integrity of both the electrical energy transfer and the data transfer, it is further preferred that at least one of the first coupling portion and the second cou pling portion is provided with a magnetic shield so as to pro vide that the electrical power winding and the electrical data winding in the first coupling portion and second coupling por tion are magnetically shielded with respect to each other.
The magnetic coupling between the data coils is partly through the air, in the space between them and through the magnetic shields on the back side of the coils. The magnetic shields assist the magnetic coupling between the data coils and limits possible electromagnetic interference (EMI) due to the high frequency magnetic fields leaking out to the environ ment.
In a preferred arrangement the magnetic shield in the first coupling portion of the male connector is provided cen trally in the male connector wherein the electrical power winding and the electrical data winding are on opposite sides of the magnetic shield.
Desirably the second coupling portion of the female connector is provided with a sleeve to receive the male con nector, wherein the electrical power winding and the electri cal data winding of the second coupling portion are provided on opposite sides of the sleeve so as to avoid crosstalk be tween the electrical power winding and the electrical data winding.
Preferably the sleeve is provided within a core of magnetically permeable material for the electrical power wind ing of the female connector.
The invention will hereinafter be further elucidated with reference to the drawing of an exemplary but preferred embodiment of a USB communication port according to the inven tion that is not limiting as to the appended claims.
In the drawing:
-figure 1 shows an electronic device with a USB commu nication port according to the invention;
-figure 2 shows a schematic of the USB communication port of the invention;
-figure 3 shows a top cross-sectional view of the USB communication port of the invention;
-figure 4 shows a cross-sectional view of the male connector of the USB communication port of the invention; and
-figure 5 shows a cross-sectional view of the female connector of the USB communication port of the invention.
Whenever in the figures the same reference numerals are applied, these numerals generally refer to the same parts.
Figure 1 depicts an electronic device 1 which can for example be a computer, laptop, smartphone or a camera that comprises a wireless USB female connector for data and power exchange. Figure 1 further shows a USB male connector 5 with a cable 2 for data and power exchange that is connectable to the USB female connector 4 of the electronic device 1. The connec tion between the USB female connector 4 and the USB male con nector 5 is preferably realized by means of magnetic couplings as will be further explained hereinafter. Accordingly the USB communication port 4, 5 is capable of operating in a wet or corrosive environment 3.
The electronic circuitry of the USB male connector 5 and USB female connector 4 is provided on printed circuit boards (PCBs). Figure 2 shows for clarity only the parts of the PCBs that are responsible for the USB compatible data and power transfer between the USB female connector 4 of the elec tronic device 1 to the USB male connector 5 connected to the cable 2. The USB male connector 5 has a plug 6 which comprises an extension of a multilayered PCB or a separate PCB daughter board.
Figure 2 shows that a planar ferrite magnetic core 9 is inserted on the USB female connector PCB 4 coinciding with the position where a plug 6 of the USB male connector 5 is in serted.
In the top view provided by figure 3 it is shown that the USB female connector 4 and the USB male connector 5 both contain electronic controllers 7, 8 that generate the alter nating current AC that is applied to the electrical power winding 12 and electrical data winding 13. These controllers 7, 8 are also responsible for generating USB compatible sig nals. The AC on the electrical power winding 12 will typically be a few MHz and the data AC on the electrical data winding 13 will be tenths of MHz. The implementation of the male and fe male electronic controllers 7, 8 involves state of art elec tronic circuitry known to the skilled person, so that that a further detailed discussion thereof can be dispensed with.
Figure 3 shows that the USB female connector 4 and the USB male connector 5 each comprise an electrical power winding 12 and an electrical data winding 13, thus forming part of the first coupling portion and the second coupling portion. It is further depicted that the electrical power winding 12 of both the USB female connector 4 and the USB male connector 5 is provided with a core 10, 11 of magnetically permeable material. The power transfer electrical coil windings 12 that are shown in figure 3 are constructed with one or more turns; one winding is placed in the PCB of the USB male connector 5 and a second winding is placed in the PCB of the USB female connector 4. In addition, PCB tracks shaped as spiral coils are placed on another layer of the two multi-layer PCBs of the USB female connector 4 and the USB male connector 5; and this full spiral winding is fitted within a winding 13 window. The on the plug 6 of the USB male connector 5 situated coil 13 is coupled magnetically with the corresponding coil 13 of the USB female connector 4 for the transfer of data.
As a result of the geometric construct of the USB com munication port of the invention as further discussed herein after, the magnetic flux of the electric power windings 12 and the electric data windings 13 are decoupled; the power flux goes through the center and outer legs of the core 10, 11; while the data flux goes through the middle of the window of the electrical data winding 13.
Figure 4 shows a cross-sectional view of the PCB of the USB male connector 5 and Figure 5 shows a cross-sectional view of the PCB of the USB female connector 4. In these fig ures 4 and 5 it is shown how the magnetic core 10, 11 encloses the electrical power windings 12, placed at the bottom of both the USB male connector 5 and the USB female connector 4.
Figure 4 shows that a magnetic shield 15 forms part of the first coupling portion of the USB male connector 5 and is provided centrally in the USB male connector 5, whereas the electrical power winding 12 and the electrical data winding 13 are on opposite sides of the magnetic shield 15. The electri cal data windings 13 on the other hand are placed at the top in the USB communication port 4, 5. Provision is made for a current return path 14 for the electrical data wiring 12 to the electrical power winding 12 conductor layer. The data coil induced magnetic flux crosses vertically orthogonally to the spiral coils and returns through the magnetic shield 15 pro vided in the USB male connector 5. The magnetic shield 15 is preferably made from magnetic material of substantially lower permeability than the main power core 10, 11, in order to avoid that the flux associated with the power coil saturates the magnetic shield 15. Figure 5 depicts that the USB female connector 4 is provided with a sleeve 18 to receive the USB male connector 5, wherein the electrical power winding 12 and the electrical data winding 13 of the second coupling portion are provided on opposite sides of the sleeve. It further shows that the sleeve is provided within a core 10 of magnetically permeable mate rial for the electrical power winding 12 of the USB female connector 4.
Finally, to seal the USB female connector 4 and the USB male connector 5 from water and to protect against corro sion said connectors 4, 5 are sealed with seals 17 and 16, re spectively.
Although the invention has been discussed in the fore going with reference to an exemplary embodiment of the USB communication port of the invention, the invention is not re stricted to this particular embodiment which can be varied in many ways without departing from the invention. The discussed exemplary embodiment shall therefore not be used to construe the appended claims strictly in accordance therewith. On the contrary the embodiment is merely intended to explain the wording of the appended claims without intent to limit the claims to this exemplary embodiment. The scope of protection of the invention shall therefore be construed in accordance with the appended claims only, wherein a possible ambiguity in the wording of the claims shall be resolved using this exem plary embodiment.
Legend:
1. Electronic device
2. Cable
3. Wet or corrosive environment
4. USB female connector
5. USB male connector
6. Plug
7. USB female electronic controller
8. USB male electronic controller
9. Planar ferrite magnetic core
10. Core
11. Core
12. Electrical power winding 13. Electrical data winding
14. Electrical data winding return path
15. Magnetic shield 16. Plug Seal
17. Sleeve Seal
18. Sleeve

Claims

1. A USB communication port comprising a USB male con nector (5) and a USB female connector (4) and equipped to transfer information between the USB male connector (5) and the USB female connector (4), characterized in that the USB male connector (5) is equipped with a first coupling portion and the USB female connector (4) is equipped with a second coupling portion, wherein the first coupling portion and the second coupling portion are arranged to wirelessly transfer data and/or electrical energy between the first coupling por tion and the second coupling portion.
2. The USB communication ports according to claim 1, characterized in that the USB male connector (5) and the USB female connector (4) are sealed with a first seal (16) and a second seal (17), respectively.
3. The USB communication port according to claim 1 or
2, characterized in that the first coupling portion and the second coupling portion are magnetic coupling means, prefera bly electrical windings (12, 13) for generating a magnetic field.
4. The USB communication port according to any one of claims 1 - 3, characterized in that each of the first coupling portion and the second coupling portion comprises an electri cal power winding (12) and an electrical data winding (13).
5. The USB communication port according to claim 4, characterized in that the electrical power winding (12) of each coupling portion is provided with a core (10, 11) of mag netically permeable material.
6. The USB communication port according to any one of claims 1 - 5, characterized in that at least one of the first coupling portion and the second coupling portion is provided with a magnetic shield (15) so as to provide that the electri cal power winding (12) and the electrical data winding (13) in each of the first coupling portion and second coupling portion are magnetically shielded with respect to each other.
7. The USB communication port according to claim 6, characterized in that the magnetic shield (15) in the first coupling portion of the USB male connector (5) is provided centrally in the USB male connector (5), whereas the electrical power winding (12) and the electrical data winding (13) are on opposite sides of the magnetic shield (15).
8. The USB communication port according to any one of the previous claims 4 - 7, characterized in that the second coupling portion of the USB female connector (4) is provided with a sleeve (18) to receive a plug (6) of the USB male con nector (5), whereas the electrical power winding (12) and the electrical data winding (13) of the second coupling portion are provided on opposite sides of the sleeve (18).
9. The USB communication port according to claim 8, characterized in that the sleeve (18) is provided within a core (10) of magnetically permeable material for the electri cal power winding (12) of the female connector (4).
PCT/NL2020/050747 2019-12-04 2020-11-30 A usb communication port WO2021112669A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962943334P 2019-12-04 2019-12-04
US62/943,334 2019-12-04

Publications (1)

Publication Number Publication Date
WO2021112669A1 true WO2021112669A1 (en) 2021-06-10

Family

ID=74141796

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2020/050747 WO2021112669A1 (en) 2019-12-04 2020-11-30 A usb communication port

Country Status (1)

Country Link
WO (1) WO2021112669A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2418830A1 (en) * 2010-08-13 2012-02-15 Research In Motion Limited Near-field communication (NFC) system providing plug-in device connection assistance features and related methods
US20190036279A1 (en) * 2017-07-28 2019-01-31 Powertech Industrial Co., Ltd. Wireless transmission assembly and household appliance system
US20190081503A1 (en) * 2016-03-14 2019-03-14 Chang-ho Kim Internet of things smart home/building automation system for cutting off network standby power, and control method for same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2418830A1 (en) * 2010-08-13 2012-02-15 Research In Motion Limited Near-field communication (NFC) system providing plug-in device connection assistance features and related methods
US20190081503A1 (en) * 2016-03-14 2019-03-14 Chang-ho Kim Internet of things smart home/building automation system for cutting off network standby power, and control method for same
US20190036279A1 (en) * 2017-07-28 2019-01-31 Powertech Industrial Co., Ltd. Wireless transmission assembly and household appliance system

Similar Documents

Publication Publication Date Title
JP6598765B2 (en) Electromagnetic connector
TWI505665B (en) Network communication device
JP6778269B2 (en) Electromagnetic shield for wireless power transfer systems
US9674972B2 (en) Modular electronic system and bus subscriber
WO2011007661A1 (en) Method and apparatus for transmitting power and data for usb device
CN105044425A (en) Differential current measuring module
US20200112207A1 (en) Systems, devices and methods for electrical and/or electronic interconnection
JP2012075283A (en) Power transmission system and power transmission device
US20200203895A1 (en) Adapter assembly for contactless transfer of electrical power
WO2021112669A1 (en) A usb communication port
US8079873B2 (en) LVDS connector
CN102446616B (en) Filter circuit and there is the electric connector of this filter circuit
CN212062873U (en) Electrical connector
TW201409872A (en) Power adapter and electronic connector
CN203536181U (en) Cable-based inductance coil
CN103839667B (en) A kind of planar high voltage transformer
JP2009044801A (en) Power monitoring system
TWI824351B (en) Electrical connector
CN218351250U (en) Flat transformer and electronic equipment
CN212725826U (en) Anti-magnetic interference data line
CN113540899B (en) Electric connector
CN101996738A (en) Pulse transformer
CN207782041U (en) A kind of 2P4S plate terminal adapters with multiconductor shielding case
US10027171B2 (en) Power transmitting communication unit
TWM504366U (en) Electrical connector

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20838664

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20838664

Country of ref document: EP

Kind code of ref document: A1