GB1399151A - Battery charging circuits - Google Patents
Battery charging circuitsInfo
- Publication number
- GB1399151A GB1399151A GB197972A GB197972A GB1399151A GB 1399151 A GB1399151 A GB 1399151A GB 197972 A GB197972 A GB 197972A GB 197972 A GB197972 A GB 197972A GB 1399151 A GB1399151 A GB 1399151A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relay
- signal
- period
- battery
- charging
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00308—Overvoltage protection
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
1399151 Battery charging systems WESTINGHOUSE BRAKE & SIGNAL CO Ltd 3 Jan 1973 [14 Jan 1972] 1979/72 Heading H2H A battery charger circuit which normally supplies a predetermined charge comprises timing means and means responsive to the charge condition of the battery during an initial time period which will stop the continuation of the predetermined charge if this would result in overcharging. The charging circuit comprises input terminals LN which are connected to a bridge rectifier via inductances L1, L2 and L3. The timing circuit comprises unijunction transistor T1 which via latch T2, T3, is arranged to enable gate T4 for the initial period. If gassing cell voltage, or other condition during the interval indicates overcharging might occur a more negative signal, appears on lead B which, via transistors T4, T5, T6 and T7 causes relay RL2 to release which releases relay 52 remains the shunt from across coil L1, so slowing down the charging rate. The charger also comprises a main timing circuit (not shown) which at the end of a first period (longer than the initial interval) applies a signal on lead C which also, via transistor T5, causes L1 to the placed in the charging circuit regardless of the charged condition. If during this first period, gassing conditions occur, a signal on line E, via transistors T9, T10, T11, releases relay RL1 which releases relay S1 and removes the shunt across coil L3 thus reducing the charging rate. At the end of a second period, a signal on lead D via transistors T14, T15, releases relay RL3 to release relay 53 which treats the charging circuit via contact 53/1. If the battery is removed, Zener diode Z1, via transistors T12, T13 senses the change in voltage to release relay RL3 via transistors T14, T15, to break the charging circuit at 53/1.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB197972A GB1399151A (en) | 1972-01-14 | 1972-01-14 | Battery charging circuits |
AU51087/73A AU476354B2 (en) | 1972-01-14 | 1973-01-15 | Battery charging circuits |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB197972A GB1399151A (en) | 1972-01-14 | 1972-01-14 | Battery charging circuits |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1399151A true GB1399151A (en) | 1975-06-25 |
Family
ID=9731444
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB197972A Expired GB1399151A (en) | 1972-01-14 | 1972-01-14 | Battery charging circuits |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU476354B2 (en) |
GB (1) | GB1399151A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109552086A (en) * | 2018-12-18 | 2019-04-02 | 深圳市信维通信股份有限公司 | A kind of wireless charging system for electric automobile and its control method |
-
1972
- 1972-01-14 GB GB197972A patent/GB1399151A/en not_active Expired
-
1973
- 1973-01-15 AU AU51087/73A patent/AU476354B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109552086A (en) * | 2018-12-18 | 2019-04-02 | 深圳市信维通信股份有限公司 | A kind of wireless charging system for electric automobile and its control method |
CN109552086B (en) * | 2018-12-18 | 2024-03-19 | 深圳市信维通信股份有限公司 | Wireless charging system of electric automobile and control method thereof |
Also Published As
Publication number | Publication date |
---|---|
AU5108773A (en) | 1974-07-18 |
AU476354B2 (en) | 1976-09-16 |
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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 |