GB1438439A - Battery charging apparatus - Google Patents
Battery charging apparatusInfo
- Publication number
- GB1438439A GB1438439A GB5188174A GB5188174A GB1438439A GB 1438439 A GB1438439 A GB 1438439A GB 5188174 A GB5188174 A GB 5188174A GB 5188174 A GB5188174 A GB 5188174A GB 1438439 A GB1438439 A GB 1438439A
- Authority
- GB
- United Kingdom
- Prior art keywords
- battery
- control
- resistor
- transistor
- circuitry
- 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
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
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
-
- 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
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
- H02J7/0045—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the batteries
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)
- Secondary Cells (AREA)
Abstract
1438439 Battery chargers MOTOROLA Inc 29 Nov 1974 [18 Jan 1974] 51881/74 Heading H2H Battery charging apparatus adapted for charging different batteries with different charging currents comprises a resistor packaged within the housing for a battery having a value related to the charging current for the battery, control voltage circuitry connected to the resistor and producing a control voltage having a value related to that of the resistor, charging current supply circuitry connected to the battery and including control circuitry for controlling the charging current in accordance with a control voltage applied thereto, and circuitry connecting the control voltage circuitry with the control circuitry to control the battery charging current. In the embodiment shown, the charging current is supplied from a source 21 via transistor 22 and diode 24, the battery 12 to earth at 30. Battery 12 and its resistor 14 are housed at 10 and have terminals 16-18 which co-operate with terminals 26, 30, 40 of a receptacle 28 of the battery charger. The control voltage circuitry comprises two transistors 31, 32, the resistor 14 being connected into the emitter-collector path of transistor 31 to control the current therein and hence to control the potential at the junction of resistors 36, 37 which is connected to the base of transistor 22 to control its impedance. In a modification, Fig. 2 (not shown), an integrated circuit current regulator controls the current through a resistor connected between the supply 20 and the base of transistor 22, and hence the potential at the base of this transistor. A further transistor (90), Fig. 2, may be connected with its base-emitter path in parallel with the diode (24) and have its collector connected to earth via an L.E.D. (92) to provide an indication of whether the charger is on.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US43452674A | 1974-01-18 | 1974-01-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1438439A true GB1438439A (en) | 1976-06-09 |
Family
ID=23724591
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5188174A Expired GB1438439A (en) | 1974-01-18 | 1974-11-29 | Battery charging apparatus |
Country Status (12)
Country | Link |
---|---|
JP (1) | JPS5440134B2 (en) |
AR (1) | AR204938A1 (en) |
BR (1) | BR7410889D0 (en) |
CA (1) | CA1025046A (en) |
DE (1) | DE2500173C2 (en) |
DK (1) | DK148576C (en) |
ES (1) | ES433930A1 (en) |
FR (1) | FR2258731B1 (en) |
GB (1) | GB1438439A (en) |
IL (1) | IL46380A (en) |
NL (1) | NL184447C (en) |
ZA (1) | ZA7569B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2239567A (en) * | 1990-04-05 | 1991-07-03 | Technophone Ltd | Portable radio telephone useable with batteries of different types; battery charging |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1569620A (en) * | 1976-05-24 | 1980-06-18 | Chloride Group Ltd | Automatic battery charges |
DE3206081A1 (en) * | 1982-02-17 | 1983-09-01 | Auergesellschaft Gmbh, 1000 Berlin | ARRANGEMENT FOR CHARGING BATTERIES |
US6075341A (en) * | 1999-02-17 | 2000-06-13 | Black & Decker Inc. | Power pack charging system for a power tool |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1350813A (en) * | 1964-04-27 | Method and device for charging cells or batteries of direct current cells | ||
GB1008421A (en) * | 1961-09-29 | 1965-10-27 | Lucas Industries Ltd | Connecting lugs for batteries |
ES308391A1 (en) * | 1965-01-21 | 1965-04-16 | Espanola Magnetos Soc Anenima | A direct current generating system suitable for two nominal voltages |
US3696283A (en) * | 1970-04-15 | 1972-10-03 | John W Ackley | Modular battery charger |
-
1974
- 1974-01-01 AR AR256959A patent/AR204938A1/en active
- 1974-11-28 CA CA214,868A patent/CA1025046A/en not_active Expired
- 1974-11-29 GB GB5188174A patent/GB1438439A/en not_active Expired
- 1974-12-19 DK DK664174A patent/DK148576C/en active
- 1974-12-27 BR BR10889/74A patent/BR7410889D0/en unknown
-
1975
- 1975-01-01 IL IL46380A patent/IL46380A/en unknown
- 1975-01-03 DE DE2500173A patent/DE2500173C2/en not_active Expired
- 1975-01-03 ZA ZA00750069A patent/ZA7569B/en unknown
- 1975-01-10 JP JP505275A patent/JPS5440134B2/ja not_active Expired
- 1975-01-16 NL NLAANVRAGE7500529,A patent/NL184447C/en not_active IP Right Cessation
- 1975-01-16 FR FR7501324A patent/FR2258731B1/fr not_active Expired
- 1975-01-17 ES ES433930A patent/ES433930A1/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2239567A (en) * | 1990-04-05 | 1991-07-03 | Technophone Ltd | Portable radio telephone useable with batteries of different types; battery charging |
Also Published As
Publication number | Publication date |
---|---|
DK148576C (en) | 1985-12-30 |
AR204938A1 (en) | 1976-03-19 |
JPS50102837A (en) | 1975-08-14 |
DE2500173A1 (en) | 1975-08-14 |
BR7410889D0 (en) | 1975-09-16 |
ZA7569B (en) | 1976-01-28 |
IL46380A0 (en) | 1975-04-25 |
JPS5440134B2 (en) | 1979-12-01 |
DK664174A (en) | 1975-09-08 |
DE2500173C2 (en) | 1984-09-06 |
ES433930A1 (en) | 1976-11-16 |
FR2258731A1 (en) | 1975-08-18 |
AU7719075A (en) | 1976-07-08 |
IL46380A (en) | 1977-04-29 |
NL184447B (en) | 1989-02-16 |
FR2258731B1 (en) | 1983-04-15 |
CA1025046A (en) | 1978-01-24 |
DK148576B (en) | 1985-08-05 |
NL184447C (en) | 1989-07-17 |
NL7500529A (en) | 1975-07-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PE20 | Patent expired after termination of 20 years |
Effective date: 19941128 |