EP2893414A1 - Elektronische vorrichtung zur erzeugung einer versorgungsspannung zur stromversorgung einer mobilen vorrichtung - Google Patents

Elektronische vorrichtung zur erzeugung einer versorgungsspannung zur stromversorgung einer mobilen vorrichtung

Info

Publication number
EP2893414A1
EP2893414A1 EP13758955.2A EP13758955A EP2893414A1 EP 2893414 A1 EP2893414 A1 EP 2893414A1 EP 13758955 A EP13758955 A EP 13758955A EP 2893414 A1 EP2893414 A1 EP 2893414A1
Authority
EP
European Patent Office
Prior art keywords
voltage
cable
electronic equipment
generating
supply voltage
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.)
Withdrawn
Application number
EP13758955.2A
Other languages
English (en)
French (fr)
Inventor
Alexandre Fromion
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.)
PSA Automobiles SA
Original Assignee
Peugeot Citroen Automobiles SA
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 Peugeot Citroen Automobiles SA filed Critical Peugeot Citroen Automobiles SA
Publication of EP2893414A1 publication Critical patent/EP2893414A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/266—Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips

Definitions

  • the invention relates to electronic equipment having a connector capable of supplying a voltage for powering a mobile device.
  • the invention therefore aims in particular to remedy this drawback by proposing electronic equipment comprising means for generating a regulated supply voltage within a range of predetermined values.
  • the solution according to the invention takes advantage of the cable structure between the electronic equipment and the mobile device, to ensure the output voltage on the connector at the end of the cable and connected to the mobile device.
  • the means for measuring the voltage in the shielding of the cable comprise a capacity connected to a mass of the electronic equipment, the shielding of the cable being connected to the ground (Gnd) of the electronic equipment by capacitive coupling.
  • the means for measuring the voltage in the cable shield further comprise a resistor placed in parallel with the capacitor or any other component allowing the protection against static (electrostatic discharge).
  • the electronic equipment according to the invention comprises a first connector Cr1 compliant with the USB standard.
  • the invention also relates to a power supply system comprising electronic equipment according to the invention and a shielded cable adapted to be connected to said electronic equipment.
  • the invention also relates to a vehicle comprising electronic equipment according to the invention or a supply system according to the invention.
  • Figure 1 illustrates an electronic device according to the invention connected to a mobile device by a shielded cable .
  • the cable has a first 12.1 and a second 12.2 conductor in which circulates a current lusb consumed by the nomadic apparatus 1 1.
  • the first driver 12.1 connects the power supply provided by the on-board equipment to the nomadic equipment.
  • the second conductor 12.2 connects the ground Gnd of the electronic equipment 1 0 to the ground Gnd 'of the mobile device 1 1.
  • the two conductor son 1 2.1 1 2.2 are identical (made of the same material, and have the same linear resistance) and are subjected to the same temperature (due to their confinement), and the same mechanical stress. We can therefore consider that they have substantially the same resistance (within a few percent).
  • the resistances of each conductor 12.1, 12.2 and associated connectors CM, Cr2, Cr3, Cr4 are represented by a resistor Rc on each of the conductive wires.
  • the cable 12 further comprises another conductor D + / D- for the exchange of data between the electronic equipment 10 and the mobile device 1 1 and which is not used in the context of the invention.
  • the shielding 13 of the cable 1 2 is connected to the supply ground Gnd 'of the mobile device 1 1, when the connector of the cable Cr3 is connected to that Cr2 of the mobile device 1 1.
  • the connectors and the power cable cause a voltage drop which implies that the voltage at the connector Cr1 of the electronic equipment 1 0 is different from the voltage applied to the mobile device 1 1.
  • VeilSe VQ-1 - 2 * R c * lusb-
  • the electronic equipment 10 comprises means (not shown) for generating a supply voltage V B us.
  • the electronic equipment 10 further comprises: means for measuring the voltage V G n in the shield 13 of the cable 12 and means for generating a regulated voltage V BU s' from the supply voltage V B us and the voltage V Gn measured in the shield 13.
  • the shield 13 of the cable 12 (connected to the ground on the side of the mobile device 1 1) is used as a sensor of the voltage drop due to the resistance of the ground conductor (in other words the second conductor 12.2).
  • the value of this voltage drop can be used to determine the voltage drop associated with the power supply conductor (ie the first conductor 12.1) and Cr1, Cr2, Cr3 and Cr4 connectors.
  • the measured voltage drop it is then possible to compensate for the voltage drop due to the cable by controlling the supply voltage that is delivered to the first connector Cr1.
  • the voltage delivered at the first connector Cr1 is increased to obtain the desired voltage (ie the supply voltage V B us) at the third connector Cr3.
  • the means for measuring the voltage V Gn d in the shield 13 of the cable 12 comprise a capacitor C connected to the ground Gnd of the electronic equipment 10, the shielding 13 of the cable 12 being connected to the ground Gnd of the electronic equipment 10 by capacitive coupling.
  • the required capacity is for example of the ceramic type with a indicative value from 1 to 10 ⁇ . This type of capacity combines high value and excellent high frequency characteristics.
  • the means for measuring the voltage V Gr , d 'in the shielding 13 of the cable 12 further comprise a resistor R placed in parallel with the capacitor C or any other component enabling protection against static (electrostatic discharge).
  • the resistor R is also connected to the ground Gnd of the electronic equipment 10.
  • the resistor R has a high impedance 10 to 100 K ohms whose value is very large in front of the resistance of the cable. This makes it possible to set a continuous potential of this connection point and to avoid a variable floating potential (by electrostatic charge).
  • the capacitor C ensures the connection to the ground of the radio-frequency equipment and thus makes it possible to maintain the screen effect of the shielding of the USB cable.
  • the means for generating a regulated voltage V B us' from the supply voltage V B us and the voltage V Gn measured in the shield 13 comprises an amplifier A delivering an amplified voltage V A from the voltage V Gr , of measured in the shield 13.
  • the means for generating a regulated voltage V B us 'from the supply voltage V B us and the voltage V Gnd > measured in the shield 13 further comprises a voltage regulator 20 delivering a regulated voltage Bus' equal to the sum of the supply voltage V BU s and the amplified voltage V A.
  • the assembly comprising amplifier A and voltage regulator 20 is produced by a single integrated component.
  • the measured voltage V gr from the input of the electronic equipment 10 to the point S is equal to usb * R c (with usb the current consumed by the nomadic apparatus 1 1 and R c the resistance of the second 12.2 conductor and associated connectors).
  • first conductor 12.1 and the second conductor 12.2 have substantially the same resistance.
  • the voltage output of the regulator V B us' is:
  • VBUS ' is the output voltage of the equipment at the automotive USB connector.
  • V B use V B us (the nominal voltage of the USB standard).
  • the invention also relates to a vehicle comprising electronic equipment according to the invention or a supply system according to the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP13758955.2A 2012-09-05 2013-08-08 Elektronische vorrichtung zur erzeugung einer versorgungsspannung zur stromversorgung einer mobilen vorrichtung Withdrawn EP2893414A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1258291A FR2995100B1 (fr) 2012-09-05 2012-09-05 Equipement electronique apte a generer une tension d'alimentation destinee a alimenter un appareil nomade
PCT/FR2013/051911 WO2014037642A1 (fr) 2012-09-05 2013-08-08 Équipement électronique apte a générer une tension d'alimentation destinée a alimenter un appareil nomade

Publications (1)

Publication Number Publication Date
EP2893414A1 true EP2893414A1 (de) 2015-07-15

Family

ID=47137895

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13758955.2A Withdrawn EP2893414A1 (de) 2012-09-05 2013-08-08 Elektronische vorrichtung zur erzeugung einer versorgungsspannung zur stromversorgung einer mobilen vorrichtung

Country Status (4)

Country Link
EP (1) EP2893414A1 (de)
CN (1) CN104718510A (de)
FR (1) FR2995100B1 (de)
WO (1) WO2014037642A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014018642B4 (de) * 2014-12-13 2021-07-08 Audi Ag EMV-Maßnahme und Kurzschlussdetektion im Kraftfahrzeug
WO2018103158A1 (zh) 2016-12-08 2018-06-14 华为技术有限公司 一种带usb端口的设备
JP2020523727A (ja) * 2017-03-24 2020-08-06 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． 二重遮蔽層を有するｕｓｂコネクタ
CN109479074B (zh) * 2017-03-24 2021-03-30 华为技术有限公司 双屏蔽层的usb连接器
CN107741918A (zh) * 2017-11-10 2018-02-27 郑州云海信息技术有限公司 一种挂耳USB2.0 Droop电压补偿电路及方法
CN108173086B (zh) * 2017-12-21 2020-02-11 Oppo广东移动通信有限公司 数据传输端口、数据传输线及终端设备
US11199866B2 (en) * 2020-01-29 2021-12-14 Taiwan Semiconductor Manufacturing Company Limited Voltage regulator with power rail tracking

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7468692B1 (en) * 2005-03-15 2008-12-23 Garmin Ltd. Method and apparatus for interconnecting navigation components using a multi-pin connector
FI121401B (fi) * 2007-11-27 2010-10-29 Salcomp Oyj Menetelmä ja järjestely sähkölaitteen ohjaamiseksi
JP4535298B2 (ja) * 2008-04-07 2010-09-01 トヨタ自動車株式会社 車両の電源装置
EP2514641B1 (de) * 2009-05-26 2014-07-16 Toyota Jidosha Kabushiki Kaisha Steuervorrichtung, Fahrzeugvorrichtung und Verfahren
CN102555948A (zh) * 2009-05-26 2012-07-11 丰田自动车株式会社 控制装置、车载设备以及系统及其方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2014037642A1 *

Also Published As

Publication number Publication date
FR2995100B1 (fr) 2015-08-28
WO2014037642A1 (fr) 2014-03-13
CN104718510A (zh) 2015-06-17
FR2995100A1 (fr) 2014-03-07

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