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 PDFInfo
- 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
Links
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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)
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)
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)
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 |
-
2006
- 2006-02-25 DE DE102006008839A patent/DE102006008839B4/de active Active
-
2007
- 2007-02-14 EP EP07711183A patent/EP1989605B1/de not_active Expired - Fee Related
- 2007-02-14 WO PCT/DE2007/000268 patent/WO2007095898A1/de active Application Filing
- 2007-02-14 JP JP2008555610A patent/JP5090376B2/ja not_active Expired - Fee Related
- 2007-02-14 KR KR1020087020866A patent/KR20080096676A/ko not_active Application Discontinuation
- 2007-02-14 US US12/224,320 patent/US8050544B2/en not_active Expired - Fee Related
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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