EP1989605B1 - Elektronische einrichtung zur regelung der spannung über einer sich in high-side befindlichen last - Google Patents

Elektronische einrichtung zur regelung der spannung über einer sich in high-side befindlichen last Download PDF

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Publication number
EP1989605B1
EP1989605B1 EP07711183A EP07711183A EP1989605B1 EP 1989605 B1 EP1989605 B1 EP 1989605B1 EP 07711183 A EP07711183 A EP 07711183A EP 07711183 A EP07711183 A EP 07711183A EP 1989605 B1 EP1989605 B1 EP 1989605B1
Authority
EP
European Patent Office
Prior art keywords
voltage
transistor
base
emitter
resistor
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.)
Expired - Fee Related
Application number
EP07711183A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1989605A1 (de
Inventor
Klaus Zametzky
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.)
Sitronic Gesellschaft fuer Elektrotechnische Ausruestung mbH and Co KG
Original Assignee
Sitronic Gesellschaft fuer Elektrotechnische Ausruestung mbH and Co KG
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 Sitronic Gesellschaft fuer Elektrotechnische Ausruestung mbH and Co KG filed Critical Sitronic Gesellschaft fuer Elektrotechnische Ausruestung mbH and Co KG
Publication of EP1989605A1 publication Critical patent/EP1989605A1/de
Application granted granted Critical
Publication of EP1989605B1 publication Critical patent/EP1989605B1/de
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
    • G05F3/02—Regulating voltage or current
    • G05F3/08—Regulating voltage or current wherein the variable is dc
    • G05F3/10—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics
    • G05F3/16—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices
    • G05F3/20—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations

Definitions

  • the invention relates to an electronic device for regulating the voltage across a high-side load, in particular for controlling a fan in a motor vehicle.
  • control device An important basic function of the control device is the regulation of the motor voltage as a function of a control signal.
  • This control signal can be an analog control voltage, an analog control current or be a digital signal.
  • Control units for blowers according to the prior art teach internally control currents and digital control signals in a control voltage, so that in principle there is always a control loop that controls the motor voltage in response to a control voltage.
  • FIG. 2 Known linear control devices for blowers generally use the in FIG. 2 illustrated circuit topology.
  • a vehicle battery V2 supplies the power supply for the entire arrangement.
  • V1 supplies the control voltage.
  • U mot is the motor voltage.
  • An operational amplifier U1A sets its output voltage and thus the gate-source voltage of the Mostransistors M1 so that U + is approximately equal to U-.
  • U mot is largely independent of V2.
  • the operational amplifier regulates on-board voltage fluctuations.
  • V1 0.
  • the current consumption Ib of the arrangement is referred to as quiescent current and should be as low as possible in order not to discharge the battery V2.
  • Ib I1 + I2 + I3.
  • I3 can be kept at a very low level by using an ultra low power opamp.
  • the invention is based on the object to develop a control device that allows to use even at low quiescent current comparatively low-resistance resistors, with thermal influences to the reference variable to be compensated.
  • the invention enables the construction of a control device, in particular for a fan with comparatively few discrete components.
  • the control device is characterized by good control behavior and an extremely low quiescent current consumption.
  • the compensation of the temperature influences of the base-emitter voltage of the first transistor is effected by the base-emitter path of a second transistor of the same conductivity type in series with the first transistor.
  • control voltage V1 which is referred to ground
  • the control voltage V1 does not in this arrangement, as in the circuit diagram of the known control device (see FIG. 2 ), ground-related to the control amplifier, but mirrored to the positive supply voltage.
  • the input voltages U + and U- of the control operation amplifier are not as in FIG. 2 , to ground, but based on the positive potential of the supply voltage V2.
  • the control voltage V1 is applied to the base of a common-emitter transistor Q1.
  • the voltage U- now approximates the input voltage V1 amplified by R2 / R1.
  • V1 is related to ground, U- to the positive potential of V2. Due to the arrangement, V1 is therefore mirrored from the ground reference potential to the positive supply potential.
  • U mot V 1 ⁇ R 3 + R 4 R 3 and thus independent of V2.
  • the quiescent current of the circuit can be given only by the quiescent current of the regulator U1A.
  • I1 and I2 do not burden battery V2 in idle mode.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Nonlinear Science (AREA)
  • Control Of Direct Current Motors (AREA)
  • Continuous-Control Power Sources That Use Transistors (AREA)
  • Control Of Electric Motors In General (AREA)
  • Control Of Voltage And Current In General (AREA)
EP07711183A 2006-02-25 2007-02-14 Elektronische einrichtung zur regelung der spannung über einer sich in high-side befindlichen last Expired - Fee Related EP1989605B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006008839A DE102006008839B4 (de) 2006-02-25 2006-02-25 Elektronische Einrichtung zur Regelung der Spannung über einer sich in High-Side befindlichen Last
PCT/DE2007/000268 WO2007095898A1 (de) 2006-02-25 2007-02-14 Elektronische einrichtung zur regelung der spannung über einer sich in high-side befindlichen last

Publications (2)

Publication Number Publication Date
EP1989605A1 EP1989605A1 (de) 2008-11-12
EP1989605B1 true EP1989605B1 (de) 2010-06-30

Family

ID=38137427

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07711183A Expired - Fee Related EP1989605B1 (de) 2006-02-25 2007-02-14 Elektronische einrichtung zur regelung der spannung über einer sich in high-side befindlichen last

Country Status (6)

Country Link
US (1) US8050544B2 (ko)
EP (1) EP1989605B1 (ko)
JP (1) JP5090376B2 (ko)
KR (1) KR20080096676A (ko)
DE (1) DE102006008839B4 (ko)
WO (1) WO2007095898A1 (ko)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007054191A1 (de) 2007-11-14 2009-05-28 Sitronic Gesellschaft für elektrotechnische Ausrüstung mbH. & Co. KG Elektronische Regeleinrichtung

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2130847A1 (de) * 1971-06-22 1972-12-28 Grundig Emv Anordnung zur Polwendung
US3851235A (en) * 1973-12-26 1974-11-26 Ford Motor Co Bridge circuit for controlling a direct current motor
US4079308A (en) * 1977-01-31 1978-03-14 Advanced Micro Devices, Inc. Resistor ratio circuit construction
DE2708021C3 (de) * 1977-02-24 1984-04-19 Eurosil GmbH, 8000 München Schaltungsanordnung in integrierter CMOS-Technik zur Regelung der Speisespannung für eine Last
JPS58107921A (ja) 1981-12-22 1983-06-27 Matsushita Electric Ind Co Ltd 電流供給装置
DE3342031B4 (de) * 1982-11-23 2005-01-13 Papst Licensing Gmbh & Co. Kg Schaltungsanordnung zur Drehzahlsteuerung eines Elektromotors
JPH01302409A (ja) * 1988-05-30 1989-12-06 Nec Ic Microcomput Syst Ltd 電源回路
EP0952663B1 (en) * 1998-04-23 2007-11-21 Matsushita Electric Works, Ltd. Driving circuit for oscillatory actuator
DE10111913C2 (de) * 2001-03-13 2003-07-31 Semikron Elektronik Gmbh Schaltender Spannungsumformer
DE102007035369A1 (de) * 2007-07-27 2009-02-05 Sitronic Ges. für elektrotechnische Ausrüstung GmbH & Co. KG Schaltungsanordnung zur temperaturabhängigen Laststromregelung
DE102007054191A1 (de) * 2007-11-14 2009-05-28 Sitronic Gesellschaft für elektrotechnische Ausrüstung mbH. & Co. KG Elektronische Regeleinrichtung

Also Published As

Publication number Publication date
JP2009528007A (ja) 2009-07-30
US20090148140A1 (en) 2009-06-11
JP5090376B2 (ja) 2012-12-05
DE102006008839B4 (de) 2007-12-27
KR20080096676A (ko) 2008-10-31
EP1989605A1 (de) 2008-11-12
DE102006008839A1 (de) 2007-09-27
US8050544B2 (en) 2011-11-01
WO2007095898A1 (de) 2007-08-30

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