EP2609239A2 - Schaltungsanordnung zum betreiben eines hausgeräts und entsprechendes verfahren - Google Patents
Schaltungsanordnung zum betreiben eines hausgeräts und entsprechendes verfahrenInfo
- Publication number
- EP2609239A2 EP2609239A2 EP11744005.7A EP11744005A EP2609239A2 EP 2609239 A2 EP2609239 A2 EP 2609239A2 EP 11744005 A EP11744005 A EP 11744005A EP 2609239 A2 EP2609239 A2 EP 2609239A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- control unit
- main control
- supply
- voltage
- circuit
- 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- Withdrawn
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
- G06F1/30—Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/08—Control circuits or arrangements thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/10—Power supply arrangements, e.g. stand-by circuits
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air
Definitions
- the invention relates to a circuit arrangement for operating a domestic appliance and a domestic appliance with such a circuit arrangement.
- the invention also relates to a method for enabling a normal operation of a domestic appliance after a failure of a supply alternating voltage, which is applied to a circuit input of a circuit arrangement of the domestic appliance.
- such a domestic appliance has a motor control unit for controlling an electric machine and a main control unit for outputting control commands to the engine control unit.
- the engine control unit and the main control unit are supplied with electrical energy by means of separate supply circuits, for example by separate power supply units.
- These supply circuits have different structure; the supply circuit for the motor control unit usually comprises a link capacitor with which a rectified voltage is smoothed.
- Such a circuit for supplying a motor control unit is known, for example, from the document WO 2005/060064 A1. It is an object of the invention to provide a solution as a circuit arrangement with a motor control unit and a main control unit can operate as intended, namely in particular after failure of a supply AC voltage from a supply network.
- a circuit arrangement for operating a household appliance comprises a circuit input for applying an AC supply voltage. It also comprises a motor control unit for controlling an electric machine of the Domestic appliance.
- a motor supply circuit can be coupled via an electrical switch to the circuit input, which is designed to provide a first operating voltage. With the first operating voltage, the engine control unit is supplied.
- the motor supply circuit includes a link capacitor for storing electrical energy.
- the circuit arrangement also comprises a main control unit for controlling the domestic appliance, which is designed to deliver control signals with control commands to the engine control unit.
- the main control unit also controls the electrical switch and thus may cause the motor supply circuit to be coupled to the circuit input.
- a main supply unit is also coupled to the circuit input, which provides a second operating voltage with which the main control unit can be supplied.
- the main control unit is additionally coupled to the motor supply circuit, and the motor supply circuit is designed to provide a third operating voltage from the energy stored in the intermediate circuit capacitor, wherein the third operating voltage, the main control unit is supplied.
- the invention makes use of the fact that the motor supply circuit usually comprises an intermediate circuit capacitor which stores an electrical voltage.
- the invention now goes the way to make available this stored in the DC link capacitor electrical voltage for the supply of the main control unit, namely by generating a third operating voltage. If there is a short failure of the AC supply voltage -.
- the main supply unit no longer supplies operating voltage for the main control unit.
- the engine control unit continues to be supplied with electrical energy, namely from the DC link capacitor, while the main control unit fails.
- the invention has the further advantage that after a failure of the AC supply voltage, the main control unit has a certain time for causing predetermined operations. Namely, the main control unit can effect a controlled shutdown of the engine control unit according to a predetermined protocol. The main control unit can also switch itself off, namely properly according to a predetermined protocol. This can avoid errors that occur in the prior art after a random reset of the engine control unit and the main control unit. Thus, the main control unit can effect a controlled and deliberate shutdown of the engine control unit and / or the main control unit, thanks to the third operating voltage from the intermediate circuit capacitor.
- Another advantage of the circuit arrangement is that the test effort in the development of the domestic appliance can be reduced to a minimum, since the influences of different time points of the reset of the engine control unit and the main control unit no longer occur and therefore no longer need to be investigated.
- the third operating voltage is preferably equal in value to the second operating voltage. Then, the main control unit is supplied with the same DC voltage value even after failure of the AC supply voltage.
- the third operating voltage can, for. B. be provided by means of a flyback converter. Then such a flyback converter belongs to the motor supply circuit.
- This embodiment proves to be particularly in such circuits Particularly advantageous in which a potential separation between the engine control unit and the main control unit is present, ie the engine control unit and the main control unit are at different reference potentials.
- a potential separation is achieved in that the motor supply circuit comprises a bridge rectifier, with which the AC supply voltage is rectified. So there may be a potential separation between the engine control unit and the main control unit; then the main control unit sends the control signals with control commands to the engine control unit via a data transmission channel, which does not affect the potential separation.
- a data transmission channel can, for. B.
- the main control unit After failure of the AC supply voltage, the main control unit via the data transmission channel control commands transmitted to the engine control unit, which cause a controlled shutdown of the engine control unit according to a predetermined protocol. If there is a failure of the AC supply voltage, so can recognize the engine control unit and the main control unit, namely by a collapse of the operating voltages. After the failure of the AC supply voltage is only stored in the DC link capacitor electrical voltage available. This energy stored in the link capacitor should be efficiently distributed to the engine control unit and the main control unit. Since the main control unit represents a central control device in the domestic appliance, it requires a longer time to effect certain operations in the domestic appliance after failure of the AC supply voltage.
- the motor control unit decoupled itself after detecting a failure of the AC supply voltage from the first operating voltage and thereby even transferred to a stand-by state. Then, the engine control unit consumes very little or no electric power, and the voltage stored in the link capacitor can be fully supplied to the main control unit. By doing so, the time that the main control unit has to do after a failure of the AC supply voltage for effecting certain operations in the home appliance doubles.
- the main control unit can perform certain actions in the domestic appliance, which then ensure proper operation of the domestic appliance after the AC supply voltage has returned. For example, after detecting a failure of the AC supply voltage, the main control unit may store error data in a memory.
- Such error data may include information about a previously started and interrupted by the failure of the AC supply voltage program of the domestic appliance.
- the error data may include, for example, information about the location of the program at which the same program is interrupted by the failure of the AC supply voltage. Then the program can be restarted at this point after the return of the AC supply voltage and terminated properly.
- the main control unit comprises a permanent memory. Then, the main control unit can store such error data after detecting a failure of the AC supply voltage, which can be evaluated later in a maintenance or customer service.
- Such error data can z. Example, the time of failure of the AC supply voltage and / or the name of the selected in the failure of the AC supply voltage program and the like.
- An inventive household appliance comprises a circuit arrangement according to the invention or a preferred embodiment thereof.
- the term household appliance is understood here in particular a washing machine, a washer-dryer or a tumble dryer.
- a method according to the invention enables a normal operation of a domestic appliance after a failure of an AC supply voltage which is applied to a circuit input of a circuit arrangement of the domestic appliance.
- a main control unit is supplied with direct electrical voltage through a main supply unit coupled to the circuit input. There is an closing of an electrical switch by the main control unit, and a link capacitor of a motor supply circuit is thereby charged with DC electric power.
- a motor control unit is supplied with the DC voltage from the DC link capacitor. After failure of the AC supply voltage, the main control unit is supplied with electrical energy from the DC link capacitor.
- Fig. 1 illustrates a circuit arrangement according to an embodiment of the invention
- Fig. 2 is a supply unit of a motor supply circuit of
- Circuit arrangement according to FIG. 1 illustrates.
- a circuit arrangement 1 shown in FIG. 1 is used to operate a permanent-magnet synchronous motor 2 of a washing machine.
- the synchronous motor 2 drives a washing drum of the waxing machine.
- the circuit arrangement 1 comprises an inverter 3 having six transistors 4.
- the inverter 3 can each provide an alternating voltage for all three windings 5 of the synchronous motor 2.
- the inverter 3 is driven by a motor control unit 6, which is formed in the example by a microprocessor.
- the engine control unit 6 controls the synchronous motor 2 through the intermediary of the inverter 3.
- the motor control unit 6 is supplied with a first operating voltage Ui, which is provided by means of a motor supply circuit 7, namely with respect to a first reference potential 8.
- the first operating voltage Ui may be for example 5 V or 3.3 V, but it may also be in a value range between 1 V and 2 V lie.
- the motor supply circuit 7 comprises a bridge rectifier 9, which is connected on the primary side, via an electrical switch 10, which is provided here as a relay, to a first input terminal L of a circuit input 11 and, on the other hand, to a second input terminal N of the circuit input 11.
- the second input terminal N represents a second reference potential.
- the bridge rectifier 9 is coupled, on the one hand, via an inrush current protection circuit 12 to a DC link 13 and, on the other hand, to the first reference potential 8.
- the DC link 13 is coupled via an intermediate circuit capacitor 14 to the first reference potential 8; Parallel to the intermediate circuit capacitor 14, a supply unit 15 is connected, which provides the first operating voltage Ui.
- the bridge rectifier 9-when the relay 10 is closed- provides a rectified voltage, which is then smoothed with the DC link capacitor 14.
- the rectified voltage is thus stored in the DC link capacitor 14.
- the supply unit 15 then provides the first operating voltage Ui and another operating direct voltage U B.
- U B z. B.
- a driver for the inverter 3 are supplied.
- This further operating DC voltage U B is z. B. 15 V, with respect to the first reference potential 8.
- the supply unit 15 may, for. B. include a switching power supply, as well as a voltage divider. Namely, these components can be used to generate the first operating voltage Ui as well as the further operating direct voltage U B from the voltage stored in the intermediate circuit capacitor 14.
- the inrush current protection circuit 12 includes an ohmic resistance 16 and a relay 17 that can be driven by the engine control unit 6.
- the Relay 17 can bridge the ohmic resistor 16. Overall, the inrush current protection circuit 12 serves to protect the motor supply circuit 7 and the inverter 3 from current spikes that occur when the relay 10 is closed.
- the washing machine has a main control unit 18 which controls programs or processes of the washing machine and is formed in the example by a microprocessor.
- the main control unit 18 also controls the engine control unit 6, namely by issuing corresponding control signals with control commands to the engine control unit 6. These control signals are transmitted to the engine control unit 6 via a data transmission channel (not shown). Since the motor control unit 6 on the first reference potential 8 and the main control unit 18 are at the second reference potential N, the transmission of the control signals via a protective impedance or via an optocoupler must take place.
- a main supply unit 19 is provided, which is coupled to the circuit input 1 1.
- the main supply unit 19 may, for. B. include a power supply or a switched-mode power supply. It provides a second operating voltage U 2 , namely at an output 20 and with respect to the second reference potential N.
- the output 20 of the main supply unit 19 is connected via a diode 21 to a supply input 22 of the main control unit 18.
- the diode 21 is used to rectify the second operating voltage U 2.
- the second operating voltage U 2 is for example 5 V or 3.3 V, but it can also be between 1 V and 2 V.
- the main control unit 18 is supplied with the second operating voltage U 2 , which is generated with respect to the second reference potential N.
- the commissioning of the motor control unit 6, the inverter 3 and thus the synchronous motor 2 is carried out by closing the relay 10.
- the relay 10 is controlled by the main control unit 18, the main control unit 18 closes the relay 10 to start the synchronous motor 2 in operation.
- the supply unit 15 additionally provides a third operating voltage U 3 , with which the main control unit 18 can be supplied and whose value is equal to the second operating voltage U 2 , that is, for example 5 V or 3.3 V. This third operating voltage U 3 generates the supply unit 15 from the voltage stored in the intermediate circuit capacitor 14.
- the third operating voltage U 3 is provided with respect to the second reference potential N, so that the potential separation between the engine control unit 6 and the main control unit 18 is maintained.
- the supply unit 15 may comprise a flyback converter, which is coupled on the primary side to the first reference potential 8 and on the secondary side to the second reference potential N.
- the third operating voltage U 3 provides the supply unit 15 at an output 23, which is connected via a diode 24 to the supply input of the main control unit 18.
- the diode 24 serves to rectify the third operating voltage U 3 .
- the supply unit 15 comprises a flyback converter with a transformer 26 and a switch circuit 27.
- a first winding 28 of the transformer 26 is connected on the one hand to the DC link 13 and on the other hand via the switch circuit 27 with the first reference potential 8 coupled.
- the first operating voltage Ui and the further DC operating voltage U B are provided, namely with respect to the first reference potential 8.
- the transformer 26 also includes an additional winding 30, via which the third operating voltage U 3 is provided for the main control unit 18.
- the additional winding 30 is coupled on the one hand to the output 23 and on the other hand to the second reference potential N.
- the third operating voltage U 3 is rectified by means of a diode 31 and provided to a capacitor 32.
- the switching circuit 27 switches the first circuit 28 against the first reference potential 8 and thus causes current pulses to be generated in the first circuit 28, which are transmitted to the second circuit 29 and the auxiliary winding 30. Thus, the Energy to be transmitted.
- the switch circuit 27 additionally receives a feedback from the first operating voltage Ui, namely via a line 33.
- the operating voltages Ui and U 3 and the further operating DC voltage U B are thus controlled by the switch circuit 27, depending on the feedback value of the first operating voltage Ui.
- the main control unit 18 By providing the third operating voltage U 3 for the main control unit 18, such a situation can be avoided that the main control unit 18 is switched off in an uncontrolled manner after the occurrence of a failure of the alternating supply voltage U N.
- the main control unit 18 After failure of the AC supply voltage U N , the main control unit 18 is further supplied with the third operating voltage U 3 , which is provided from the voltage stored in the DC link capacitor 14. This makes it possible to effect certain operations by the main control unit 18 after failure of the AC supply voltage U N. Namely, the main control unit 18 can send control signals to the engine control unit 6 via the data communication channel, which then cause a controlled turn-off of the engine control unit 6 according to a predetermined protocol.
- the engine control unit 6 can also convert itself into a stand-by state in which it consumes no energy. Then, the voltage stored in the intermediate circuit capacitor 14 is available only for the supply of the main control unit 18, and the main control unit 18 can be supplied with energy after the failure of the AC supply voltage U N longer. So different approaches to a failure of the supply AC voltage U N are provided.
- the engine control unit can transfer immediately after the failure of the AC supply voltage U N in the standby state. Alternatively, the engine control unit 6 after the failure of the AC supply voltage U N continue to be supplied with the first operating voltage Ui, and the engine control unit 6 and the main control unit 18 may fail at the same time.
- the engine control unit 6 and the main control unit 18 after the return of the AC supply voltage U N on the same operating conditions, and they no longer need to be synchronized.
- the simultaneous Elimination of the engine control unit 6 and the main control unit 18 can also be made simultaneously by the main control unit 18 itself.
- the main control unit 18 also includes a permanent memory 25. After a failure of the AC supply voltage U N , the main control unit 18 store error data in the memory 25, namely data with information about a previously started and interrupted by the failure of the AC supply voltage U N program of the washing machine. After the return of the AC supply voltage U N , the main control unit 18 evaluate this error data and continue to operate the washing machine due to this error data. Such error data can also be helpful when servicing the washing machine at a customer service in order to be able to evaluate operational errors occurring during the running time of the washing machine. During maintenance of the washing machine, this error data can then be read from the memory 25 and evaluated. Overall, a circuit arrangement 1 is provided with which a proper operation of the washing machine after a failure of the AC supply voltage U N is possible.
- the main control unit 18 is in fact supplied with electrical energy from the DC link capacitor 14, even after a failure of the AC supply voltage U N.
- an uncontrolled shutdown of the main control unit 18 and the engine control unit 6 is avoided, after failure of the AC supply voltage U N , the engine control unit 6 and the main control unit 18 can be controlled off, and they must not be synchronized after the return of the AC supply voltage U N.
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Rectifiers (AREA)
- Control Of Washing Machine And Dryer (AREA)
- Control Of Ac Motors In General (AREA)
- Stand-By Power Supply Arrangements (AREA)
- Inverter Devices (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010039667A DE102010039667A1 (de) | 2010-08-24 | 2010-08-24 | Schaltungsanordnung zum Betreiben eines Hausgeräts und entsprechendes Verfahren |
PCT/EP2011/063872 WO2012025395A2 (de) | 2010-08-24 | 2011-08-11 | Schaltungsanordnung zum betreiben eines hausgeräts und entsprechendes verfahren |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2609239A2 true EP2609239A2 (de) | 2013-07-03 |
Family
ID=44630346
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11744005.7A Withdrawn EP2609239A2 (de) | 2010-08-24 | 2011-08-11 | Schaltungsanordnung zum betreiben eines hausgeräts und entsprechendes verfahren |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2609239A2 (de) |
CN (1) | CN103069067B (de) |
DE (1) | DE102010039667A1 (de) |
EA (1) | EA024506B1 (de) |
WO (1) | WO2012025395A2 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012205816A1 (de) * | 2012-04-10 | 2013-10-10 | BSH Bosch und Siemens Hausgeräte GmbH | Motoransteuerschaltung für einen bürstenlosen Waschmaschinenmotor |
DE102013209209A1 (de) * | 2013-05-17 | 2014-11-20 | BSH Bosch und Siemens Hausgeräte GmbH | Haushaltsgerät mit Energierückgewinnung und Verfahren zum Rückgewinnen von Energie in einem Haushaltsgerät |
DE102013224891B4 (de) * | 2013-12-04 | 2021-01-14 | Robert Bosch Gmbh | Schaltungsanordnung |
EP3095911B1 (de) * | 2015-05-21 | 2018-05-09 | Electrolux Appliances Aktiebolag | Verfahren zur sicheren verwaltung der elektromotoraktivierung und -deaktivierung und zugehörige vorrichtung |
DE102019212969A1 (de) * | 2019-08-29 | 2021-03-04 | BSH Hausgeräte GmbH | Wäschepflegegerät mit Gleichstrommotor und Umrichter-Elektronik |
CN112760915A (zh) * | 2020-12-18 | 2021-05-07 | 珠海格力电器股份有限公司 | 洗衣机及其控制方法 |
US20230063094A1 (en) * | 2021-08-26 | 2023-03-02 | Hamilton Sundstrand Corporation | Holdup energy arrangements |
Citations (7)
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DE4310060A1 (de) * | 1992-03-28 | 1993-09-30 | Noris Tachometerwerk | Elektrisches Analog-Anzeigeinstrument mit Rückstelleinrichtung |
DE19921146A1 (de) * | 1999-03-11 | 2000-10-05 | Daimler Chrysler Ag | Stromversorgungsanordnung mit einem Energiespeicher |
US6181587B1 (en) * | 1999-11-24 | 2001-01-30 | Mitsubishi Denki Kabushiki Kaisha | Analog signal detecting circuit, and AC side current detector of semiconductor power conversion device |
US6384491B1 (en) * | 1999-12-02 | 2002-05-07 | Litton Systems, Inc. | Active energy hold up for power supplies |
DE10138536A1 (de) * | 2001-08-06 | 2003-02-20 | Siemens Ag | Schaltungsansordnung zur Netzausfallübertragung bei Schaltungen mit einem Schalteregler |
EP1333572A2 (de) * | 2002-01-30 | 2003-08-06 | Siemens Aktiengesellschaft | Schaltungsanordnung zur kontrollierten Rückstellung eines von einem Schrittmotor angetriebenen Zeigers bei Ausfall der Versorgungsspannung |
US20090097291A1 (en) * | 2007-08-16 | 2009-04-16 | Bormann Ronald M | Universal power supply for a laptop |
Family Cites Families (9)
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DE2818269A1 (de) * | 1978-04-26 | 1979-11-08 | Kieninger & Obergfell | Elektrisches programmsteuergeraet |
DE4037390C1 (en) * | 1990-11-22 | 1991-06-27 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt, De | Voltage supply for inverter controller - has intermediate circuit connected via power Zener diodes and isolation diodes |
IT1303128B1 (it) * | 1998-10-08 | 2000-10-30 | Merloni Elettrodomestici Spa | Metodo per la stima della durata delle interruzioni dellaalimentazione dalla rete elettrica in un apparato elettrico a |
WO2005060064A1 (de) | 2003-12-18 | 2005-06-30 | BSH Bosch und Siemens Hausgeräte GmbH | Verfahren zum betreiben einer umrichterschaltung einer waschmaschine oder eines wäschetrockners |
CN101005206A (zh) * | 2005-09-21 | 2007-07-25 | 国际整流器公司 | 用于永磁同步电机弱磁运行的保护电路 |
US7554276B2 (en) * | 2005-09-21 | 2009-06-30 | International Rectifier Corporation | Protection circuit for permanent magnet synchronous motor in field weakening operation |
US7949885B2 (en) * | 2006-12-22 | 2011-05-24 | Ricoh Company, Ltd. | Power supply device, image forming apparatus, and power supply method |
DE102007030072A1 (de) * | 2007-06-29 | 2009-01-02 | BSH Bosch und Siemens Hausgeräte GmbH | Elektrischen Antriebseinrichtung für ein Wasserführendes Haushaltsgerät |
DE102008044378A1 (de) * | 2008-12-05 | 2010-06-10 | BSH Bosch und Siemens Hausgeräte GmbH | Haushaltsgerät mit automatischer Abschaltung |
-
2010
- 2010-08-24 DE DE102010039667A patent/DE102010039667A1/de not_active Withdrawn
-
2011
- 2011-08-11 WO PCT/EP2011/063872 patent/WO2012025395A2/de active Application Filing
- 2011-08-11 EP EP11744005.7A patent/EP2609239A2/de not_active Withdrawn
- 2011-08-11 CN CN201180040653.7A patent/CN103069067B/zh not_active Expired - Fee Related
- 2011-08-11 EA EA201390257A patent/EA024506B1/ru not_active IP Right Cessation
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
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DE4310060A1 (de) * | 1992-03-28 | 1993-09-30 | Noris Tachometerwerk | Elektrisches Analog-Anzeigeinstrument mit Rückstelleinrichtung |
DE19921146A1 (de) * | 1999-03-11 | 2000-10-05 | Daimler Chrysler Ag | Stromversorgungsanordnung mit einem Energiespeicher |
US6181587B1 (en) * | 1999-11-24 | 2001-01-30 | Mitsubishi Denki Kabushiki Kaisha | Analog signal detecting circuit, and AC side current detector of semiconductor power conversion device |
US6384491B1 (en) * | 1999-12-02 | 2002-05-07 | Litton Systems, Inc. | Active energy hold up for power supplies |
DE10138536A1 (de) * | 2001-08-06 | 2003-02-20 | Siemens Ag | Schaltungsansordnung zur Netzausfallübertragung bei Schaltungen mit einem Schalteregler |
EP1333572A2 (de) * | 2002-01-30 | 2003-08-06 | Siemens Aktiengesellschaft | Schaltungsanordnung zur kontrollierten Rückstellung eines von einem Schrittmotor angetriebenen Zeigers bei Ausfall der Versorgungsspannung |
US20090097291A1 (en) * | 2007-08-16 | 2009-04-16 | Bormann Ronald M | Universal power supply for a laptop |
Non-Patent Citations (1)
Title |
---|
See also references of WO2012025395A2 * |
Also Published As
Publication number | Publication date |
---|---|
CN103069067B (zh) | 2015-09-09 |
DE102010039667A1 (de) | 2012-03-01 |
EA024506B1 (ru) | 2016-09-30 |
CN103069067A (zh) | 2013-04-24 |
WO2012025395A2 (de) | 2012-03-01 |
EA201390257A1 (ru) | 2013-11-29 |
WO2012025395A3 (de) | 2012-06-07 |
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