GB1245440A - Battery charger control - Google Patents

Battery charger control

Info

Publication number
GB1245440A
GB1245440A GB61768/68A GB6176868A GB1245440A GB 1245440 A GB1245440 A GB 1245440A GB 61768/68 A GB61768/68 A GB 61768/68A GB 6176868 A GB6176868 A GB 6176868A GB 1245440 A GB1245440 A GB 1245440A
Authority
GB
United Kingdom
Prior art keywords
battery
transistor
switch
dec
charging
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
Application number
GB61768/68A
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.)
SAFT Societe des Accumulateurs Fixes et de Traction SA
Original Assignee
SAFT Societe des Accumulateurs Fixes et de Traction SA
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 SAFT Societe des Accumulateurs Fixes et de Traction SA filed Critical SAFT Societe des Accumulateurs Fixes et de Traction SA
Publication of GB1245440A publication Critical patent/GB1245440A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0034—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using reverse polarity correcting or protecting circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

1,245,440. Battery charging circuits; protective arrangements. SOC. DES ACCUMULATEURS FIXES ET DE TRACTION. 30 Dec., 1968 [29 Dec., 1967], No. 61768/68. Headings H2H and H2K. A battery charging circuit includes an arrangement for indicating if the battery has been connected to the charger in the wrong polarity. In the charger shown in Fig. 1, a switch SW1 is used to select the required charging voltage and is ganged with a further switch SW2 which controls the voltage at the base of a transistor T2. If a battery is correctly connected to the output terminals 8, 9, this transistor will remain switched off. However, reverse connection allows the transistor to conduct and so light a lamp L. In a second embodiment, Fig. 2 (not shown), current through the transistor is also arranged to operate a switch which cuts off the charging current until the battery is reconnected correctly or a push-button is operated. A fast-acting magneto-thermal circuit breaker may also be used, Fig. 3 (not shown).
GB61768/68A 1967-12-29 1968-12-30 Battery charger control Expired GB1245440A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR134351 1967-12-29

Publications (1)

Publication Number Publication Date
GB1245440A true GB1245440A (en) 1971-09-08

Family

ID=8643931

Family Applications (1)

Application Number Title Priority Date Filing Date
GB61768/68A Expired GB1245440A (en) 1967-12-29 1968-12-30 Battery charger control

Country Status (2)

Country Link
FR (1) FR1556396A (en)
GB (1) GB1245440A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2197761A (en) * 1986-11-18 1988-05-25 Nec Corp Preventing excess temperature in battery chargers
US5043650A (en) * 1988-02-26 1991-08-27 Black & Decker Inc. Battery charger

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2197761A (en) * 1986-11-18 1988-05-25 Nec Corp Preventing excess temperature in battery chargers
GB2197761B (en) * 1986-11-18 1990-08-22 Nec Corp Booster and charger unit used for hand-held portable telephone and having overheat protection circuit
US5043650A (en) * 1988-02-26 1991-08-27 Black & Decker Inc. Battery charger

Also Published As

Publication number Publication date
FR1556396A (en) 1969-02-07

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