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GB1456226A - Battery chargers - Google Patents

Battery chargers

Info

Publication number
GB1456226A
GB1456226A GB5659173A GB5659173A GB1456226A GB 1456226 A GB1456226 A GB 1456226A GB 5659173 A GB5659173 A GB 5659173A GB 5659173 A GB5659173 A GB 5659173A GB 1456226 A GB1456226 A GB 1456226A
Authority
GB
United Kingdom
Prior art keywords
battery
minutes
signal
gate
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.)
Expired
Application number
GB5659173A
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.)
Harmer & Simmons Ltd
Original Assignee
Harmer & Simmons 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 Harmer & Simmons Ltd filed Critical Harmer & Simmons Ltd
Priority to GB5659173A priority Critical patent/GB1456226A/en
Priority to IT2759074A priority patent/IT1030683B/en
Priority to FR7433181A priority patent/FR2254139B1/fr
Priority to DE2456065A priority patent/DE2456065C3/en
Publication of GB1456226A publication Critical patent/GB1456226A/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
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage

Landscapes

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

Abstract

1456226 Charging batteries HARMER & SIMMONS Ltd 11 Sept 1974 [6 Dec 1973] 56591/73 Heading H2H A system for maintaining the charge of a battery 10 after the main charge has been completed comprises a circuit 13 for detecting the level of the battery voltage on open circuit which circuit provides one signal to a two signal AND gate 15 when the battery voltage on open circuit falls to a predetermined level and a clock timing device 16 which is actuated as soon as the charging device 11 is disconnected from the battery 10 and provides a second signal to the AND gate 15 a predetermined time, e.g. 15 minutes, thereafter, the two input signals to the AND gate causing an output therefrom which energizes a timer 17 which closes a switch 17 for a predetermined period, e.g. two minutes. Thus whenever the voltage of the battery 10 falls to a predetermined level it is connected to the charging device 11 for a period of, say, two minutes, the clock timing device 16 ensuring that the reconnection of the battery after the previous disconnection is prevented for an interval of, say, fifteen minutes.
GB5659173A 1973-12-06 1973-12-06 Battery chargers Expired GB1456226A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB5659173A GB1456226A (en) 1973-12-06 1973-12-06 Battery chargers
IT2759074A IT1030683B (en) 1973-12-06 1974-09-23 Battery charging control circuit - incorporating a timer and a voltage sensitive switch to permit further trickle charge
FR7433181A FR2254139B1 (en) 1973-12-06 1974-10-02
DE2456065A DE2456065C3 (en) 1973-12-06 1974-11-27 Battery charger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5659173A GB1456226A (en) 1973-12-06 1973-12-06 Battery chargers

Publications (1)

Publication Number Publication Date
GB1456226A true GB1456226A (en) 1976-11-24

Family

ID=10477026

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5659173A Expired GB1456226A (en) 1973-12-06 1973-12-06 Battery chargers

Country Status (3)

Country Link
DE (1) DE2456065C3 (en)
FR (1) FR2254139B1 (en)
GB (1) GB1456226A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2183944A (en) * 1985-12-09 1987-06-10 Levitt Safety Ltd Battery charger
GB2266016B (en) * 1992-04-07 1995-12-13 Cmp Batteries Ltd Battery charging
GB2330460A (en) * 1997-10-16 1999-04-21 Nec Technologies Fast charging of lithium ion cells

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4383211A (en) * 1981-01-02 1983-05-10 Atlantic Richfield Company Electrical charging and discharging control apparatus and method, and solar to electrical energy conversion apparatus incorporating such apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2183944A (en) * 1985-12-09 1987-06-10 Levitt Safety Ltd Battery charger
GB2266016B (en) * 1992-04-07 1995-12-13 Cmp Batteries Ltd Battery charging
GB2330460A (en) * 1997-10-16 1999-04-21 Nec Technologies Fast charging of lithium ion cells
GB2330460B (en) * 1997-10-16 2001-09-05 Nec Technologies Fast charging of lithium ion cells

Also Published As

Publication number Publication date
DE2456065A1 (en) 1975-06-19
FR2254139B1 (en) 1979-03-23
DE2456065B2 (en) 1977-09-22
FR2254139A1 (en) 1975-07-04
DE2456065C3 (en) 1978-05-11

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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