EP1464197A2 - Spannungsregler für eine elektronische vorrichtung - Google Patents

Spannungsregler für eine elektronische vorrichtung

Info

Publication number
EP1464197A2
EP1464197A2 EP02799850A EP02799850A EP1464197A2 EP 1464197 A2 EP1464197 A2 EP 1464197A2 EP 02799850 A EP02799850 A EP 02799850A EP 02799850 A EP02799850 A EP 02799850A EP 1464197 A2 EP1464197 A2 EP 1464197A2
Authority
EP
European Patent Office
Prior art keywords
voltage
regulator
input
electronic
output
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.)
Granted
Application number
EP02799850A
Other languages
English (en)
French (fr)
Other versions
EP1464197B1 (de
Inventor
Vincent Lomba
Christophe Rouverand
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.)
DRNC Holdings Inc
Original Assignee
Alcatel SA
Nokia 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 Alcatel SA, Nokia Inc filed Critical Alcatel SA
Publication of EP1464197A2 publication Critical patent/EP1464197A2/de
Application granted granted Critical
Publication of EP1464197B1 publication Critical patent/EP1464197B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current 
    • G05F1/46—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC
    • G05F1/56—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices
    • G05F1/565—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor

Definitions

  • the present invention relates to a voltage regulator for an electronic device, for example a radiocommunication terminal, intended to supply a regulated output voltage to an electronic sub-assembly of the terminal from an input voltage connected to an energy accumulator.
  • One of the non-exclusive fields of application of the invention is that of mobile radiocommunication terminals operating in a cellular radiocommunication system.
  • the invention applies in particular, but not exclusively, to a system according to the GSM standard (Special Group
  • a voltage regulator supplies the exact voltage required by an electronic sub-assembly of a radiocommunication terminal for its optimal operation.
  • a regulator of this type can be used between an energy accumulator such as a battery and a radio preamplifier.
  • a radio preamplifier is used to manage the transmission and reception of the radio signal from the radiocommunication terminal.
  • the adioFrequency (RF) signal is only transmitted or received for a determined time with a periodicity fixed by the network reference clock, therefore in the form of a variable niche signal, such as indicates figure la which illustrates a GSM signal.
  • FIG. 1a illustrates the fact that the power amplifiers are subjected to a sudden jump in voltage 1, then at the end of the slot 2 to a sudden drop in voltage 3, followed by a cut-off time 5.
  • the period T of the signal shown is 4.615 ms.
  • the slot 2 of the GSM signal is 0.577ms.
  • the voltage regulator must pass from a zero output voltage to the necessary output voltage Vout, which represents a voltage difference Dv ⁇
  • the object of the invention is to present a solution to these problems and to regulate the voltage delivered to the radio preamplifier while limiting energy losses.
  • the invention for this purpose, provides a voltage regulator for an electronic device supplying a regulated output voltage from an input voltage, the output voltage being connected to an electronic subassembly of the electronic device intended to be supplied with energy, said regulator comprising a control element receiving the input voltage, a capacitor situated at the output of the regulator intended to be periodically charged by the input voltage and to periodically supply its charge to the electronic sub-assembly of the electronic device when said electronic subassembly requires a power supply, the capacitor being in parallel with a feedback network taking part of the output voltage and providing a measurement of the output voltage to the control element, the counter network reaction comprising at least two transistors, a voltage comparator and a switch s ituted between the output of the comparator and the input of the control element, characterized in that a
  • the invention makes it possible to reduce the reactivation time of the regulator before the voltage jump as well as the energy necessary for recharging the regulator.
  • the voltage comparator compares the output voltage with a reference voltage (Vref) characteristic of the electronic sub-assembly intended to be supplied with energy, and is a control transistor.
  • FIG. 1a already described, represents the shape of the variable GSM type signal.
  • FIG. 1b already described, represents the output voltage of a voltage regulator according to the prior art.
  • FIG. 1 e represents the output voltage of a voltage regulator according to the invention.
  • FIG. 2 represents the electrical diagram of a voltage regulator according to the prior art.
  • FIG. 3 represents the electrical diagram of a voltage regulator according to the invention.
  • the invention is described in its application to radio communication terminals or portable telephones. It more generally applies to all types of radio transceivers, such as, for example, a radio messaging device.
  • This circuit can also be applied to the power supply of other electronic sub-assemblies of the terminal such as the heart of a microprocessor, for example.
  • the regulator of the invention thus allows optimum stability of the voltage delivered to the electronic sub-assembly of the terminal.
  • FIG. 2 represents the electrical diagram of a voltage regulator according to the prior art.
  • This voltage regulator supplies a regulated output voltage (Vout) to an electronic sub-assembly of the communication terminal intended to be supplied with energy.
  • Vout regulated output voltage
  • the regulator is itself supplied by an input voltage (Vin), connected to an energy accumulator.
  • the regulator comprises a control element (CONTR), generally a regulation control transistor receiving the input voltage (Vin).
  • CONTR control element
  • This control element (CONTR) makes it possible to readjust the output voltage (Vout) delivered with respect to a reference voltage (Vref) specific to each electronic sub-assembly to be supplied.
  • the regulator comprises a capacitor (10) located at the output of the regulator which is intended to be charged periodically by the input voltage (Vin) and to periodically supply its charge to the electronic sub-assembly of the terminal when said electronic sub-assembly requires a energy supply.
  • the capacitor (10) is located in parallel with a feedback network (15) which takes part of the output voltage (Vout) and provides a measurement of the output voltage (Vout) to the control element ( AGAINST).
  • the feedback network comprises at least two transistors (20,30), a voltage comparator (COMP) and a switch (40) located between
  • the feedback network takes about 1% of the output voltage (Vout) in order to measure the value and compare it in the comparator (COMP) with the reference voltage (Vref).
  • the switch (40) When the electronic subassembly does not require energy, the switch (40) is in the open position. However, it can be seen that the capacitor (10) discharges into the feedback network (15) and a leakage current is created and consumed by the resistors (20), (30).
  • the invention proposes an improvement of the existing voltage regulators.
  • This voltage regulator supplies a regulated output voltage (Vout) to an electronic sub-assembly of the communication terminal intended to be supplied with energy.
  • Vout regulated output voltage
  • the regulator is itself supplied by an input voltage (Vin), connected to an energy accumulator, such as a battery.
  • Vin input voltage
  • energy accumulator such as a battery
  • the regulator comprises, like that of the prior art, a control element (CONTR), a capacitor (10), a feedback network (15) which comprises at least two transistors (20,30), a voltage comparator ( COMP) and a switch (40) arranged identically to the prior art.
  • CONTR control element
  • COMP voltage comparator
  • a switch (50) is inserted in the feedback network between the input of the feedback network and the first transistor (20).
  • the switch (50) is in the open position when the electronic sub-assembly, for example a radio preamplifier, does not require a power supply.
  • the switch (50) is in the closed position otherwise.
  • the switch (50) being in the open position, there is no leakage current as in the regulator of the prior art.
  • the voltage regulator according to the invention must pass from a non-zero output voltage to the necessary output voltage Vout, which represents a voltage difference Dv 2 , significantly lower than the voltage difference Dv,.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Continuous-Control Power Sources That Use Transistors (AREA)
  • Control Of Electrical Variables (AREA)
EP02799850.9A 2002-01-03 2002-12-24 Spannungsregler für eine elektronische vorrichtung Expired - Lifetime EP1464197B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0200031A FR2834354B1 (fr) 2002-01-03 2002-01-03 Regulateur de tension pour dispositif electronique
FR0200031 2002-01-03
PCT/FR2002/004547 WO2003061317A2 (fr) 2002-01-03 2002-12-24 Regulateur de tension pour dispositif electronique

Publications (2)

Publication Number Publication Date
EP1464197A2 true EP1464197A2 (de) 2004-10-06
EP1464197B1 EP1464197B1 (de) 2016-09-07

Family

ID=8871146

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02799850.9A Expired - Lifetime EP1464197B1 (de) 2002-01-03 2002-12-24 Spannungsregler für eine elektronische vorrichtung

Country Status (5)

Country Link
US (1) US20050024024A1 (de)
EP (1) EP1464197B1 (de)
JP (1) JP2005515574A (de)
FR (1) FR2834354B1 (de)
WO (1) WO2003061317A2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3107147A1 (fr) * 2020-02-12 2021-08-13 Somfy Activites Sa Dispositif d’alimentation électrique, actionneur électromécanique comportant un tel dispositif d’alimentation électrique, installation de fermeture, d’occultation ou de protection solaire comprenant un tel actionneur électromécanique

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101878460A (zh) * 2007-11-30 2010-11-03 Nxp股份有限公司 用于提供参考电压的装置和方法
CN104377775A (zh) * 2014-11-20 2015-02-25 广西大学 便携式可调节电压充电器控制系统
WO2017113065A1 (zh) * 2015-12-28 2017-07-06 深圳市聚作照明股份有限公司 一种自动充电电路及应急灯具

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5831467A (en) * 1991-11-05 1998-11-03 Monolithic System Technology, Inc. Termination circuit with power-down mode for use in circuit module architecture
US5610502A (en) * 1995-08-24 1997-03-11 Delco Electronics Corp. Boost power supply with clock period compensation
GB2307141A (en) * 1995-11-04 1997-05-14 John Charles Duncan Switching Regulator for GSM Mobile
US5757167A (en) * 1996-07-12 1998-05-26 Cardiac Pacemakers, Inc. Voltage regulator
KR100506983B1 (ko) * 1997-06-27 2005-08-09 코닌클리케 필립스 일렉트로닉스 엔.브이. 무선 통신 장치 내의 전원 스위칭 장치
FR2768527B1 (fr) * 1997-09-18 2000-07-13 Sgs Thomson Microelectronics Regulateur de tension
DE19809999A1 (de) * 1998-03-09 1999-09-16 Michael Kirstein Energiesparschaltung, die in Niederspannungsnetzteilen eingebaut werden kann und die die Aufgabe hat das Netzteil nur an das Energienetz zu schalten, wenn ein Verbraucher angeschlossen wird
IT1316002B1 (it) * 2000-11-08 2003-03-26 St Microelectronics Srl Regolatore di tensione per circuiti a basso consumo.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03061317A2 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3107147A1 (fr) * 2020-02-12 2021-08-13 Somfy Activites Sa Dispositif d’alimentation électrique, actionneur électromécanique comportant un tel dispositif d’alimentation électrique, installation de fermeture, d’occultation ou de protection solaire comprenant un tel actionneur électromécanique
WO2021160687A1 (fr) * 2020-02-12 2021-08-19 Somfy Activites Sa Dispositif d'alimentation électrique, actionneur électromécanique comportant un tel dispositif d'alimentation électrique, installation de fermeture, d'occultation ou de protection solaire comprenant un tel actionneur electromecanique

Also Published As

Publication number Publication date
FR2834354B1 (fr) 2005-04-01
WO2003061317A2 (fr) 2003-07-24
JP2005515574A (ja) 2005-05-26
EP1464197B1 (de) 2016-09-07
FR2834354A1 (fr) 2003-07-04
US20050024024A1 (en) 2005-02-03
WO2003061317A3 (fr) 2004-02-12

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