EP1961099A2 - Backup schaltung mit ladungsspeicher - Google Patents
Backup schaltung mit ladungsspeicherInfo
- Publication number
- EP1961099A2 EP1961099A2 EP06793295A EP06793295A EP1961099A2 EP 1961099 A2 EP1961099 A2 EP 1961099A2 EP 06793295 A EP06793295 A EP 06793295A EP 06793295 A EP06793295 A EP 06793295A EP 1961099 A2 EP1961099 A2 EP 1961099A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- battery
- power supply
- capacitor
- charge storage
- backup 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- Withdrawn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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for DC mains or DC distribution networks
- H02J1/10—Parallel operation of DC sources
- H02J1/108—Parallel operation of DC sources having arrangements for blocking reverse current flow, e.g. using diodes
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering using capacitors as storage or buffering devices
Definitions
- the invention relates to a backup circuit comprising at least one charge storage connected to a first terminal to a reference potential and connected to a second terminal to a connection point between a power supply and a load unit.
- Such circuits comprise at least one charge store, which is designed as batteries or as capacitors.
- charge store which is designed as batteries or as capacitors.
- Such circuits are known which provide a possibility for recharging, and those in which non-rechargeable batteries are used.
- the charge storage devices are connected to a connection point between the power supply and the consumer units to be supplied.
- Chargeable charge storage devices are usually charged by the power supply via series resistors.
- JP 10257691 A describes such a circuit in which a charge storage device is charged via a series resistor from a power supply or a battery. If the power supply and the battery fail, the charge storage unit supplies the consumer unit with a diode arranged in parallel with the series resistor.
- JP 2004159451 A describes a backup circuit with a capacitor as a charge storage, which is charged via a series resistor from a power supply. at disconnected power supply, the capacitor discharges via a diode arranged parallel to the series resistor, thus supplying a consumer unit.
- Non-rechargeable batteries are connected to the via a diode
- Connection point is turned on, wherein the anode of the diode is connected to the battery.
- the current flow is thus only possible from the battery to the connection point.
- a further diode is usually provided, the current flow in the direction
- JP10032941 Al discloses such a backup circuit in which a battery is used as a charge carrier.
- JP 10051978 A1 describes such a circuit, wherein by means of three diodes it is prevented that current flows from the charge stores back to the power supply.
- the object of the invention is to provide a comparison with the prior art improved backup circuit. According to the invention, this is done by a backup circuit of the type mentioned, wherein between the power supply and the connection point, a transistor is provided and wherein the base and emitter of the transistor are connected together.
- the so-connected transistor prevents the charge storage device from discharging into the power supply.
- the advantage of this solution compared to a known solution with a diode is that there are no additional costs and the leakage current that flows back into the power supply in a backup phase is reduced to about one tenth of a diode leakage current. This is in the charge storage more electrical energy to supply a consumer unit available. This either increases the backup duration or makes it possible to make the charge memory smaller.
- the formation of the at least one charge store as a capacitor is advantageous, whereby so-called supercap capacitors are preferably used. These are reliable components with high capacities.
- the capacitor is preceded by a resistor. This can be limited in a simple manner, the capacitor current.
- the at least one charge storage device is designed as a battery. These are usually cheaper than capacitors with high
- a charge storage device is designed as a capacitor and a charge storage device as a battery.
- the capacitor and the battery can each be preceded by a resistor and a non-rechargeable battery can be protected by a diode.
- Such a circuit is favorable for applications that generally have short downtime, but also long failure or shutdown can not be excluded.
- the power supply of the consumer units is then covered by the capacitor without burdening the battery. Only in the case of long downtimes does the battery discharge itself to supply the consumer units.
- the capacitor can be smaller and thus more cost-effective than in a pure capacitor solution dimensioned. Compared to the pure battery solution extends the life of the battery, as it is not burdened by frequent short backup times.
- Fig. 1 Backup circuit with capacitor
- Fig. 2 Backup circuit with battery
- Fig. 3 Backup circuit with capacitor and battery
- the arrangement shown in FIG. 1 comprises a power supply 1, which is connected to a consumer unit 2 via a bipolar transistor 3.
- the bipolar transistor 3 is exemplified as an NPN transistor, wherein the emitter is connected to the power supply 1 and the collector to the consumer unit 2.
- the base of the NPN transistor is connected to the emitter.
- a capacitor 5 is connected to a resistor 6 at the connection point 4.
- the arranged in front of the capacitor 5 resistor 6 is optional and serves to limit the capacitor current.
- the second terminal of the capacitor 5 is connected to a reference potential, to which the power supply 1 and the consumer unit 2 are connected.
- the capacitor 5 is, for example, a so-called high capacity supercap capacitor (e.g., lFarad).
- the power supply 1 is switched on with, for example, 5V. This voltage is applied to the base of the transistor 3, so that it becomes conductive. Current flows from the power supply 1 via the transistor 3 to the load unit 2 and via the optional resistor 6 into the capacitor 5, which is thus charged.
- the backup phase begins. At the base of the transistor 3 no voltage is applied and the transistor 3 blocks, so that except for a minimum leakage current no current from the capacitor 5 in the direction Power supply 1 and other connected to the power supply 1 circuit units can flow.
- the consumer unit 2 is supplied by the capacitor 5.
- the capacitor 5 can also be replaced by a rechargeable battery in this circuit.
- the resistor 6 is then dimensioned so that the maximum permissible charging current of the battery is not exceeded.
- an equivalent PNP transistor is arranged here, and instead of a capacitor, a non-rechargeable battery 7 is connected to the connection point 4.
- the collector is connected to the power supply 1 and the emitter to the consumer unit 2.
- the base is again connected to the emitter.
- a diode 8 is arranged, wherein the anode of the diode 8 is connected to the battery 7.
- the diode 8 prevents current to the battery 7 flows.
- the transistor 3 blocks and the battery 7 supplies the load unit 2 in the forward direction of the diode. 8
- FIG. 3 shows a circuit with a battery 7 and a capacitor 5 as a charge store. Both charge accumulators 5, 7 are connected to connection points 4 between the power supply 1 and the consumer unit 2. In front of the capacitor 5, a resistor 6 is favorably arranged and in front of the battery 7 a diode 8. For a rechargeable battery 7 instead of the diode 8 a
- a transistor 3 (by way of example arranged as a bipolar NPN transistor), which blocks when switched off or failed power supply.
- the capacitor 5 can be charged either by the power supply 1 and the battery 7 or only by the power supply 1. In the latter case, an additional diode 9 is arranged between the two connection points 4, to which the charge storage devices 5 and 7 are connected, which prevents a discharge of the battery 7 into the capacitor 8.
- one or more components may be provided, for example, memory elements (RAM) or a timer, also called Real Time Clock (RTC).
- RAM memory elements
- RTC Real Time Clock
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Stand-By Power Supply Arrangements (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005061830A DE102005061830B3 (de) | 2005-12-23 | 2005-12-23 | Backup Schaltung mit Ladungsspeicher |
| PCT/EP2006/066095 WO2007073950A2 (de) | 2005-12-23 | 2006-09-07 | Backup schaltung mit ladungsspeicher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1961099A2 true EP1961099A2 (de) | 2008-08-27 |
Family
ID=38109103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06793295A Withdrawn EP1961099A2 (de) | 2005-12-23 | 2006-09-07 | Backup schaltung mit ladungsspeicher |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1961099A2 (de) |
| KR (1) | KR20080087010A (de) |
| CN (1) | CN101346871B (de) |
| DE (1) | DE102005061830B3 (de) |
| WO (1) | WO2007073950A2 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007046275A1 (de) | 2007-09-27 | 2009-04-16 | Siemens Ag | Elektrisches Antriebssystem |
| DE102011002486A1 (de) * | 2011-01-05 | 2012-07-05 | BSH Bosch und Siemens Hausgeräte GmbH | Schaltungsanordnung und Verfahren zum Bereitstellen einer elektrischen Betriebsspannung für einen elektrischen Verbraucher eines Haushaltsgeräts und Haushaltsgerät |
| DE102012110674A1 (de) * | 2012-11-07 | 2014-05-08 | Beat Fahrni | Energiequelle und Verwendung dessen |
| CN105322598B (zh) * | 2015-03-28 | 2019-09-27 | 吴嘉懿 | 循环再用电能的新能源电器 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1032941A (ja) * | 1996-07-12 | 1998-02-03 | Kokusai Electric Co Ltd | メモリバックアップ回路及びメモリボード |
| JPH1051978A (ja) * | 1996-08-06 | 1998-02-20 | Okuma Mach Works Ltd | 電源バックアップ回路 |
| DE19640272C2 (de) * | 1996-09-30 | 1998-07-23 | Siemens Ag | Verpolschutzschaltung für integrierte Schaltkreise |
| JPH10257691A (ja) * | 1997-03-11 | 1998-09-25 | Tamagawa Seiki Co Ltd | エンコーダ内蔵用電源回路 |
| SE516477C2 (sv) * | 1999-04-22 | 2002-01-22 | Ericsson Telefon Ab L M | Förstärkare av differentiell typ. |
| JP2004159451A (ja) * | 2002-11-07 | 2004-06-03 | Renesas Technology Corp | 電源バックアップ回路、電子機器及び半導体装置 |
| DE102004013177B4 (de) * | 2004-03-17 | 2006-05-18 | Infineon Technologies Ag | Datenübertragungseinheit mit einer Datenübertragungsschnittstelle und ein Verfahren zum Betreiben der Datenübertragungseinheit |
-
2005
- 2005-12-23 DE DE102005061830A patent/DE102005061830B3/de not_active Expired - Fee Related
-
2006
- 2006-09-07 EP EP06793295A patent/EP1961099A2/de not_active Withdrawn
- 2006-09-07 WO PCT/EP2006/066095 patent/WO2007073950A2/de not_active Ceased
- 2006-09-07 KR KR1020087018106A patent/KR20080087010A/ko not_active Ceased
- 2006-09-07 CN CN2006800488150A patent/CN101346871B/zh not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2007073950A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102005061830B3 (de) | 2007-06-28 |
| KR20080087010A (ko) | 2008-09-29 |
| CN101346871B (zh) | 2013-07-17 |
| WO2007073950A2 (de) | 2007-07-05 |
| WO2007073950A3 (de) | 2007-10-04 |
| CN101346871A (zh) | 2009-01-14 |
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Legal Events
| Date | Code | Title | Description |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| 17P | Request for examination filed |
Effective date: 20080519 |
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| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SIEMENS AKTIENGESELLSCHAFT |
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| 17Q | First examination report despatched |
Effective date: 20101119 |
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| DAX | Request for extension of the european patent (deleted) | ||
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SIEMENS AKTIENGESELLSCHAFT |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
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| 18D | Application deemed to be withdrawn |
Effective date: 20170401 |