DE4203394A1 - Battery charger with primary controlled for constant currents - has number of switched primary windings with binary weightings selected dependent upon secondary circuit current - Google Patents

Battery charger with primary controlled for constant currents - has number of switched primary windings with binary weightings selected dependent upon secondary circuit current

Info

Publication number
DE4203394A1
DE4203394A1 DE4203394A DE4203394A DE4203394A1 DE 4203394 A1 DE4203394 A1 DE 4203394A1 DE 4203394 A DE4203394 A DE 4203394A DE 4203394 A DE4203394 A DE 4203394A DE 4203394 A1 DE4203394 A1 DE 4203394A1
Authority
DE
Germany
Prior art keywords
windings
primary
battery charger
switched
circuit current
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Withdrawn
Application number
DE4203394A
Other languages
German (de)
Inventor
Oskar Dipl Ing Szarvas
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.)
OTTO NEUWALD BATTERIE NOTSTROM
Original Assignee
OTTO NEUWALD BATTERIE NOTSTROM
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 OTTO NEUWALD BATTERIE NOTSTROM filed Critical OTTO NEUWALD BATTERIE NOTSTROM
Priority to DE4203394A priority Critical patent/DE4203394A1/en
Publication of DE4203394A1 publication Critical patent/DE4203394A1/en
Withdrawn legal-status Critical Current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
    • G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
    • G05F1/24—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using bucking or boosting transformers as final control devices
    • G05F1/26—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using bucking or boosting transformers as final control devices combined with discharge tubes or semiconductor devices
    • G05F1/30—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using bucking or boosting transformers as final control devices combined with discharge tubes or semiconductor devices semiconductor devices only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
    • H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
    • H02M5/10—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using transformers
    • H02M5/12—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using transformers for conversion of voltage or current amplitude only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P13/00—Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output
    • H02P13/06—Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output by tap-changing; by rearranging interconnections of windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20—Charging or discharging characterised by the power electronics converter

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The battery charging system has a transformer with a primary circuit consisting of a number of coupled windings (16, 18, 20, 22, 24). The number of windings on each section are in the ratio of 2n, where n equals 0, 1, 2, 3, etc. The supply to the windings is made via switching stages such that combinations of windings may be made to control the current in the secondary winding (27). The current in the secondary winding is monitored (32) and is fed back to switch windings to maintain a constant value as the battery (30) charging proceeds. ADVANTAGE - Accurate control of charge current.

Description

Die Erfindung betrifft ein Batterieladegerät mit den Merkmalen des Oberbe­ griffs von Anspruch 1. Die Zahl der eingeschalteten primärseitigen Win­ dungen wird im allgemeinen so gewählt, daß ein vorgegebener Ladestrom nicht überschritten wird.The invention relates to a battery charger with the features of the Oberbe handles of claim 1. The number of primary win switched on is generally chosen so that a predetermined charging current is not is exceeded.

Bei bekannten Ladegeräten weist die Primärwicklung Anzapfungen auf, und die Schalteinrichtung schaltet die Netzspannung zwischen den einzelnen Anzapfun­ gen um. Zu jeder Anzapfung gehört ein von der Strommeßeinrichtung gesteuer­ ter Schalter. Je genauer der Ladestrom eingehalten werden soll, desto mehr Anzapfungen benötigt man, jeweils mit zugehörigem - relativ aufwendi­ gem - Schalter.In known chargers, the primary winding has taps, and Switching device switches the mains voltage between the individual taps around. Each tap has a control from the current measuring device switch. The more precisely the charging current is to be maintained, the more Tapping is required, each with an associated - relatively complex gem - switch.

Aufgabe der Erfindung ist es, ein solches Ladegerät dahingehend zu verbes­ sern, daß der Ladestrom sehr genau einhaltbar ist und gleichwohl der Aufwand für die Umschaltung relativ gering ist.The object of the invention is to verbes such a charger Ensure that the charging current can be kept very precisely and nevertheless the effort for switching is relatively low.

Diese Aufgabe wird durch die im kennzeichnenden Teil des Anspruchs ge­ nannten Merkmale in Verbindung mit denen des Oberbegriffs gelöst. Die Zu­ satzwicklungen sind gesondert herausgeführt, um sie wahlweise kombinieren zu können, und wenn die Zusatzwicklung mit der kleinsten Windungszahl x Win­ dungen hat, so haben die übrigen Windungszahlen von 2x, 4x, 8x usw. Durch entsprechendes Kombinieren kann die Umschaltung der Windungszahlen in Sprüngen von x erfolgen, wobei jedoch mit nur beispielsweise fünf Schaltern ein Bereich von zweiunddreißig Stufen abgedeckt werden kann.This object is achieved by the ge in the characterizing part of the claim mentioned features in connection with those of the preamble solved. The To set windings are brought out separately to combine them optionally can, and if the additional winding with the smallest number of turns x Win the remaining turns of 2x, 4x, 8x etc. have through appropriate combination can switch the number of turns in Jumps of x occur, but with only five switches, for example an area of thirty-two levels can be covered.

Die beigefügte Zeichnung stellt ein Ausführungsbeispiel der Erfindung dar und zeigt in Fig. 1 das Gesamtschaltbild des Ladegeräts und in Fig. 2 die primärseitige Wicklung mit den zugehörigen Schaltern. The accompanying drawing represents an embodiment of the invention and shows in Fig. 1 the overall circuit diagram of the charger and in Fig. 2 the primary winding with the associated switches.

Das Ladegerät umfaßt einen Transformator 10 mit Eisenkern 14, primärseitigen Wicklungen 16, 18, 20, 22, 24, 26 und einer sekundärseitigen Wicklung 27. Diese speist über einen Gleichrichter 28 eine zu ladende Batterie 30. Ein Strommeßgerät 32 erfaßt den jeweils fließenden Ladestrom, der über eine Leitung 34 eine Schalteinrichtung 36 steuert. Diese ist so ausgelegt, daß der Ladestrom im wesentlichen konstant ist. Zu diesem Zweck wird bei absin­ kendem Ladestrom, das heißt bei zunehmender Ladung der Batterie, primärsei­ tig die Zahl der stromdurchflossenen Windungen verringert, und zwar in Stu­ fen. Hierfür sind fünf Schalter 40, 42, 44, 46, 48 vorgesehen, die mit den Zusatzwicklungen 18 bis 26 so verbunden sind, daß diese wahlweise zu- oder weggeschaltet werden können, während die Hauptwicklung 16 stets stromdurch­ flossen ist. Es versteht sich, daß die fünf Schalter nicht als mechanische Umschalter, wie gezeichnet, ausgebildet sind, sondern als Halbleiterschal­ ter, und daß sie über eine Steuerschaltung (nicht gezeigt) betätigt werden, der als steuernde Größe der vom Meßorgan 32 erfaßte Ladestrom aufgeschaltet ist.The charger comprises a transformer 10 with an iron core 14 , windings 16 , 18 , 20 , 22 , 24 , 26 on the primary side and a winding 27 on the secondary side. This feeds a battery 30 to be charged via a rectifier 28 . A current measuring device 32 detects the respectively flowing charging current, which controls a switching device 36 via a line 34 . This is designed so that the charging current is essentially constant. For this purpose, the number of windings through which the current flows is reduced, in stages, when the charging current decreases, that is to say as the battery increases in charge. For this purpose, five switches 40 , 42 , 44 , 46 , 48 are provided which are connected to the additional windings 18 to 26 in such a way that they can optionally be switched on or off while the main winding 16 is always flowing through current. It is understood that the five switches are not designed as a mechanical changeover switch, as shown, but as a semiconductor switch, and that they are actuated via a control circuit (not shown) which is applied as the controlling variable of the charging current detected by the measuring element 32 .

Es versteht sich, daß Details des Ladegeräts, die für die Erfindung unwe­ sentlich sind, nicht mit dargestellt wurden, etwa Glättungskondensatoren, Gleichrichter in Vollwellenausführung und dergleichen.It is understood that details of the charger that are unwe for the invention are not shown, such as smoothing capacitors, Full-wave rectifiers and the like.

Claims (2)

1. Batterieladegerät mit einem primärseitig an ein Wechselstromnetz und sekundärseitig über einen Gleichrichter an eine zu ladende Batterie an­ schließbaren Transformator, einer Meßeinrichtung für den Ladestrom, und ei­ ner von der Meßeinrichtung gesteuerten Schalteinrichtung, mittels der die Anzahl der primärseitig stromdurchflossenen Windungen wählbar ist, dadurch gekennzeichnet, daß der Transformator primärseitig eine Hauptwicklung und Zusatzwicklungen aufweist, deren Windungszahlen im Verhältnis 2n mit n=0, 1, 2... stehen und die in wählbarer Kombination der Hauptwicklung zuschaltbar sind.1.Battery charger with a primary side to an AC network and the secondary side via a rectifier to a battery to be connected to a lockable transformer, a measuring device for the charging current, and a switching device controlled by the measuring device, by means of which the number of windings through which the primary side flows can be selected, thereby characterized in that the transformer has on the primary side a main winding and additional windings, the number of turns in the ratio 2 n with n = 0, 1, 2 ... and which can be switched on in a selectable combination of the main winding. 2. Gerät nach Anspruch 1, bei dem die Schalteinrichtung für die Zu­ schaltung der Zusatzwicklungen derart ausgebildet ist, daß der Ladestrom unter einem vorgegebenen Wert gehalten wird.2. Device according to claim 1, wherein the switching device for the Zu circuit of the additional windings is designed such that the charging current is kept below a predetermined value.
DE4203394A 1992-02-06 1992-02-06 Battery charger with primary controlled for constant currents - has number of switched primary windings with binary weightings selected dependent upon secondary circuit current Withdrawn DE4203394A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4203394A DE4203394A1 (en) 1992-02-06 1992-02-06 Battery charger with primary controlled for constant currents - has number of switched primary windings with binary weightings selected dependent upon secondary circuit current

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4203394A DE4203394A1 (en) 1992-02-06 1992-02-06 Battery charger with primary controlled for constant currents - has number of switched primary windings with binary weightings selected dependent upon secondary circuit current

Publications (1)

Publication Number Publication Date
DE4203394A1 true DE4203394A1 (en) 1993-08-12

Family

ID=6451080

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4203394A Withdrawn DE4203394A1 (en) 1992-02-06 1992-02-06 Battery charger with primary controlled for constant currents - has number of switched primary windings with binary weightings selected dependent upon secondary circuit current

Country Status (1)

Country Link
DE (1) DE4203394A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9315050U1 (en) * 1993-10-05 1994-03-03 TRANSTEC Elektroanlagen GmbH, 40723 Hilden Switching module for the step-by-step switching of primary taps on a transformer
ITMI20111708A1 (en) * 2011-09-22 2013-03-23 Ind E Innovazione S P A HEAVY DUTY GENERATOR
CN106100355A (en) * 2016-08-11 2016-11-09 合肥翰谱节能控制设备有限公司 Digital AC voltage regulating device and consisting of compensation regulator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9315050U1 (en) * 1993-10-05 1994-03-03 TRANSTEC Elektroanlagen GmbH, 40723 Hilden Switching module for the step-by-step switching of primary taps on a transformer
ITMI20111708A1 (en) * 2011-09-22 2013-03-23 Ind E Innovazione S P A HEAVY DUTY GENERATOR
CN106100355A (en) * 2016-08-11 2016-11-09 合肥翰谱节能控制设备有限公司 Digital AC voltage regulating device and consisting of compensation regulator

Similar Documents

Publication Publication Date Title
DE3219754C2 (en) Circuit for the uniform current load of several power supply units connected in parallel to a common load
DE1962358C3 (en) Transformer for an arc welding machine
DE3326947A1 (en) METHOD AND CIRCUIT FOR OPERATING A HIGH VOLTAGE DC CONNECTION BETWEEN TWO AC VOLTAGE NETWORKS
DE2811908C2 (en) Arrangement with a transformer for suddenly changing voltages
CH642493A5 (en) TRANSMISSION SYSTEM FOR HIGH VOLTAGE DC.
DE4203394A1 (en) Battery charger with primary controlled for constant currents - has number of switched primary windings with binary weightings selected dependent upon secondary circuit current
DE860084C (en) Magnetically regulated rectifier used to charge a battery
EP0026866B1 (en) Battery charger
DE844026C (en) Improvements to electrical power generation systems
DE2609435C3 (en) battery charger
DE885881C (en) Device for static grid control of power converters
DE570389C (en) Voltage regulating device for power generators, transformers or the like working in parallel.
AT303205B (en) Exciter arrangement for rotating alternating current welding generators with downstream rectifier
DE2950978C2 (en) Externally controlled flyback converter designed as a frequency converter
DE1565523C (en) Welding rectifier arrangement
DE968994C (en) Inverter switching arrangement
DE927568C (en) Control device for step transformers
DE916937C (en) Device for voltage regulation of toy motors
WO1993017480A1 (en) Voltage regulation arrangement for parallel transformer operation
DE1563962C (en) Circuit arrangement for driving an electric traction vehicle that can be fed from an alternating current or direct current network
DE920260C (en) Switching device for generating control pulses for any control and regulation purposes, in particular for controlling power converters
DE1615366B2 (en) Device for pulse arc welding
DE1076835B (en) X-ray apparatus with primary high voltage control and two connectable X-ray tubes
DE1457144A1 (en) Device for controlling the voltage of an electrostatic precipitator
DE938027C (en) Economy or additional transformer with voltage regulation on the high and low voltage side

Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8139 Disposal/non-payment of the annual fee