GB893157A - Improvements in or relating to direct current voltage generating systems supplied byan alternating current - Google Patents
Improvements in or relating to direct current voltage generating systems supplied byan alternating currentInfo
- Publication number
- GB893157A GB893157A GB31091/59A GB3109159A GB893157A GB 893157 A GB893157 A GB 893157A GB 31091/59 A GB31091/59 A GB 31091/59A GB 3109159 A GB3109159 A GB 3109159A GB 893157 A GB893157 A GB 893157A
- Authority
- GB
- United Kingdom
- Prior art keywords
- battery
- transistor
- charging
- supply
- failure
- 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
-
- 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
-
- 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
-
- 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
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
- H02J7/04—Regulation of charging current or voltage
- H02J7/12—Regulation of charging current or voltage using magnetic devices having controllable degree of saturation, i.e. transductors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
893,157. Automatic battery-charging control systems. SOC. DES ACCUMULATEURS FIXES ET DE TRACTION. Sept. 11, 1959 [July 12, 1958], No. 31091/59. Class 38 (4). An automatic battery-charging system has regulating means whereby the charging voltage is maintained constant whilst the charging current is varied according to the state of the battery together with means for ensuring that the battery is recharged at a high rate after a supply failure for a time proportional to the duration of the failure. A battery 6 is charged by means of a rectifier 2 connected to an alternating current supply 1 by way of a winding 3a of a transductor 3. During charging of the battery 6 a relay 9 is energized by the rectifier 2 to energize a regulating device over a contact 8. The regulating device comprises a pair of transistors T 1 , T 2 ; the base b 1 of transistor T 1 being connected to a point on a potential divider R 1 , R 2 , this point being related to the state of the battery. The transistor T 1 is conductive or not according to the difference between its base potential and a reference potential 10 applied to its emitter e 1 . Transistor T 1 is arranged to control transistor T 2 and hence the current flowing in the winding 3c of the transductor 3 so varying the impedance of a winding 3b in the charging circuit to vary the charging current. Should failure of the A.C. supply 1 occur the relay 9 becomes de-energized, thus connecting a cell 13 and a resistor 15 across the battery 6 by way of a contact 14. Battery 6 only now supplies the load and at the same time charges the cell 13 of the gas-tight alkaline type, which has similar charge and discharge characteristics. Upon resumption of the supply relay 9 is re-energized and the cell 13 discharges through a resistor 16. The base b 3 of a transistor T 3 is thus biased so that transistor T 3 conducts thereby causing transistor T 2 to conduct, overriding the normal control of the transistor T 2 such that the impedance of the transductor 3 remains at a minimum, the battery 6 then being charged at the full rate until the cell 13 is discharged, this period being approximately equal to the time the failure the A.C. supply lasted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR893157X | 1958-09-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB893157A true GB893157A (en) | 1962-04-04 |
Family
ID=9389858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31091/59A Expired GB893157A (en) | 1958-09-12 | 1959-09-11 | Improvements in or relating to direct current voltage generating systems supplied byan alternating current |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB893157A (en) |
-
1959
- 1959-09-11 GB GB31091/59A patent/GB893157A/en not_active Expired
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