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GB1496982A - Battery charger - Google Patents

Battery charger

Info

Publication number
GB1496982A
GB1496982A GB29275/75A GB2927575A GB1496982A GB 1496982 A GB1496982 A GB 1496982A GB 29275/75 A GB29275/75 A GB 29275/75A GB 2927575 A GB2927575 A GB 2927575A GB 1496982 A GB1496982 A GB 1496982A
Authority
GB
United Kingdom
Prior art keywords
battery
charging
charger
transistor
defibrillator
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
GB29275/75A
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.)
Cardiac Recorders Ltd
Original Assignee
Cardiac Recorders Ltd
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 Cardiac Recorders Ltd filed Critical Cardiac Recorders Ltd
Priority to GB29275/75A priority Critical patent/GB1496982A/en
Publication of GB1496982A publication Critical patent/GB1496982A/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
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/0071—Regulation of charging or discharging current or voltage with a programmable schedule
    • 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
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/10—The network having a local or delimited stationary reach
    • H02J2310/20—The network being internal to a load
    • H02J2310/23—The load being a medical device, a medical implant, or a life supporting device

Landscapes

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

Abstract

1496982 Charging batteries CARDIAC RECORDERS Ltd 12 July 1976 [11 July 1975] 29275/75 Heading H2H A method of charging a rechargeable nickel-cadmium battery comprises charging the battery at a high rate for a predetermined period of time during which the total energy supplied to the battery is approximately half the total charge capacity of the battery, and then charging the battery at a low rate. The battery, which supplies a cardiac defibrillator, is connected to terminals 13 when the defibrillator is plugged into the charger. A magnet (14), Fig. 2 (not shown), in the defibrillator closes a reed switch SW1A, SW1B in the charger to connect a mains supply to the charger. Current is supplied to the battery via a transistor TR1 which limits the maximum open circuit voltage and a transistor TR2 of a constant current circuit. A timer, which includes a resistor R3, a capacitor C4 and a frequency divider IC, switches on a transistor TR3 after the predetermined period of three hours has elapsed, thereby connecting resistors R7, R8 in parallel and reducing the charging current.
GB29275/75A 1976-07-12 1976-07-12 Battery charger Expired GB1496982A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB29275/75A GB1496982A (en) 1976-07-12 1976-07-12 Battery charger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB29275/75A GB1496982A (en) 1976-07-12 1976-07-12 Battery charger

Publications (1)

Publication Number Publication Date
GB1496982A true GB1496982A (en) 1978-01-05

Family

ID=10288963

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29275/75A Expired GB1496982A (en) 1976-07-12 1976-07-12 Battery charger

Country Status (1)

Country Link
GB (1) GB1496982A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2521792A1 (en) * 1982-02-17 1983-08-19 Auergesellschaft Gmbh DEVICE FOR CHARGING BATTERIES
GB2125641A (en) * 1982-07-31 1984-03-07 Matsushita Electric Works Ltd Quick charging apparatus
FR2571905A1 (en) * 1984-10-12 1986-04-18 Black & Decker Inc Device designed to ensure the rapid charging of an electrical accumulator set
US4590943A (en) * 1985-04-19 1986-05-27 Physio-Control Corporation System for providing power to portable defibrillator
GB2178910A (en) * 1985-08-03 1987-02-18 Haden D H Ltd An appliance supported in electrical contact with a support
DE8810250U1 (en) * 1988-08-12 1988-10-06 Friemann & Wolf Gerätebau GmbH, 4100 Duisburg Charger for rechargeable electrochemical cells and batteries
US4779593A (en) * 1986-03-10 1988-10-25 Kay Kiernan Machine for providing electromagnetic pulses for therapeutic purposes
DE4105769A1 (en) * 1991-02-23 1992-09-03 Ruhrkohle Ag Automatically charging accumulator, e.g. for remote control applications - applying rapid charge period followed by test cycle and further charging cycles with currents dependent on charge
US5248928A (en) * 1990-09-18 1993-09-28 Black & Decker Inc. Timed battery charger
US5470343A (en) * 1994-06-10 1995-11-28 Zmd Corporation Detachable power supply for supplying external power to a portable defibrillator

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2521792A1 (en) * 1982-02-17 1983-08-19 Auergesellschaft Gmbh DEVICE FOR CHARGING BATTERIES
GB2125641A (en) * 1982-07-31 1984-03-07 Matsushita Electric Works Ltd Quick charging apparatus
FR2571905A1 (en) * 1984-10-12 1986-04-18 Black & Decker Inc Device designed to ensure the rapid charging of an electrical accumulator set
US4590943A (en) * 1985-04-19 1986-05-27 Physio-Control Corporation System for providing power to portable defibrillator
GB2178910A (en) * 1985-08-03 1987-02-18 Haden D H Ltd An appliance supported in electrical contact with a support
GB2178910B (en) * 1985-08-03 1989-08-31 Haden D H Ltd Electrical appliances
US4779593A (en) * 1986-03-10 1988-10-25 Kay Kiernan Machine for providing electromagnetic pulses for therapeutic purposes
DE8810250U1 (en) * 1988-08-12 1988-10-06 Friemann & Wolf Gerätebau GmbH, 4100 Duisburg Charger for rechargeable electrochemical cells and batteries
US5248928A (en) * 1990-09-18 1993-09-28 Black & Decker Inc. Timed battery charger
DE4105769A1 (en) * 1991-02-23 1992-09-03 Ruhrkohle Ag Automatically charging accumulator, e.g. for remote control applications - applying rapid charge period followed by test cycle and further charging cycles with currents dependent on charge
US5470343A (en) * 1994-06-10 1995-11-28 Zmd Corporation Detachable power supply for supplying external power to a portable defibrillator

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee