GB1212588A - Circuit arrangement for voltage regulation in charging devices for electric accumulators - Google Patents

Circuit arrangement for voltage regulation in charging devices for electric accumulators

Info

Publication number
GB1212588A
GB1212588A GB03765/68A GB1376568A GB1212588A GB 1212588 A GB1212588 A GB 1212588A GB 03765/68 A GB03765/68 A GB 03765/68A GB 1376568 A GB1376568 A GB 1376568A GB 1212588 A GB1212588 A GB 1212588A
Authority
GB
United Kingdom
Prior art keywords
transistor
charging
voltage
accumulator
resistance
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
GB03765/68A
Inventor
Richard Hirschmann
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.)
HIRSCHMANN RADIOTECHNIK
Original Assignee
HIRSCHMANN RADIOTECHNIK
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 HIRSCHMANN RADIOTECHNIK filed Critical HIRSCHMANN RADIOTECHNIK
Publication of GB1212588A publication Critical patent/GB1212588A/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)
  • Direct Current Feeding And Distribution (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

1,212,588. Charging batteries. R. HIRSCHMANN. 21 March, 1968 [23 March, 1967], No. 13765/68. Heading H2H. In a device for charging accumulators, the charging current flows through the collectoremitter path of a transistor. When the accumulator is fully charged, current is able to flow through a Zener diode and a second transistor arranged in such a way that the first transistor ceases to be conductive, so stopping the charging process. An accumulator A is charged through a resistance R 1 and a transistor T 1 . During charging, the base of the transistor T 1 is kept at a voltage U 1 derived from a potentiometer R 2 R 3 and stabilized by a Zener diode Z 1 . The voltage U 1 is greater than the maximum value of the accumulator voltage U A . When U A reaches this maximum voltage, a second Zener diode Z 2 connected to a potentiometer R 4 , is arranged to break down and feed current to the base of a second transistor T 2 . A current can now flow through the collector-emitter path of the transistor T 2 and through a resistance R 6 , which has the effect of lowering the voltage at the base of the first transistor T 1 at least to the value of the accumulator voltage so that charging through the transistor T 1 is stopped. A resistance R 7 , connected across the transistor T 1 , allows a very low charging current to pass in order to compensate for leakage from the fully charged accumulator. A condenser C 1 or C 2 may be included in the circuit in order to ensure that the initial current flows through the transistor T 1 rather than through T 2 , and the resistance R 1 may include an indicating glow lamp.
GB03765/68A 1967-03-23 1968-03-21 Circuit arrangement for voltage regulation in charging devices for electric accumulators Expired GB1212588A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH0062230 1967-03-23

Publications (1)

Publication Number Publication Date
GB1212588A true GB1212588A (en) 1970-11-18

Family

ID=7161777

Family Applications (1)

Application Number Title Priority Date Filing Date
GB03765/68A Expired GB1212588A (en) 1967-03-23 1968-03-21 Circuit arrangement for voltage regulation in charging devices for electric accumulators

Country Status (5)

Country Link
AT (1) AT280433B (en)
DE (1) DE1588279A1 (en)
FR (1) FR1568250A (en)
GB (1) GB1212588A (en)
SE (1) SE327004B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5488284A (en) * 1992-09-30 1996-01-30 Dallas Semiconductor Corporation Battery charger systems and methods

Also Published As

Publication number Publication date
AT280433B (en) 1970-04-10
SE327004B (en) 1970-08-10
FR1568250A (en) 1969-05-23
DE1588279A1 (en) 1970-06-18

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees