CA2298428A1 - Battery charging circuit - Google Patents
Battery charging circuit Download PDFInfo
- Publication number
- CA2298428A1 CA2298428A1 CA 2298428 CA2298428A CA2298428A1 CA 2298428 A1 CA2298428 A1 CA 2298428A1 CA 2298428 CA2298428 CA 2298428 CA 2298428 A CA2298428 A CA 2298428A CA 2298428 A1 CA2298428 A1 CA 2298428A1
- Authority
- CA
- Canada
- Prior art keywords
- charging current
- flyback transformer
- switch
- necessary
- charging 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A battery charging circuit uses a simplified design for converting AC to DC and powering a flyback transformer.
The switch of the flyback transformer operates at a high frequency and the time of the transformer is controlled to achieve a high power factor. The flyback transformer is fed a rectified AC signal which has not been smoothed in the traditional manner using a bulk hold capacitor and in rush limiting resister. Any treating to smooth the charging current for the battery is carried out on the secondary side. In many cases, no smoothing of the charging current is necessary. The time on of the switch is changed if necessary, slowly, relative to the pulsating input signals powering the primary winding. With a fixed T on, or slowly varying T on, dramatic fluctuations in the charging current are avoided.
The switch of the flyback transformer operates at a high frequency and the time of the transformer is controlled to achieve a high power factor. The flyback transformer is fed a rectified AC signal which has not been smoothed in the traditional manner using a bulk hold capacitor and in rush limiting resister. Any treating to smooth the charging current for the battery is carried out on the secondary side. In many cases, no smoothing of the charging current is necessary. The time on of the switch is changed if necessary, slowly, relative to the pulsating input signals powering the primary winding. With a fixed T on, or slowly varying T on, dramatic fluctuations in the charging current are avoided.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002298428A CA2298428C (en) | 2000-02-10 | 2000-02-10 | Battery charging circuit |
CA 2306438 CA2306438A1 (en) | 2000-02-10 | 2000-04-20 | Dc power supply |
CA002331916A CA2331916A1 (en) | 2000-02-10 | 2001-01-22 | Dc power supply |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002298428A CA2298428C (en) | 2000-02-10 | 2000-02-10 | Battery charging circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2298428A1 true CA2298428A1 (en) | 2000-05-23 |
CA2298428C CA2298428C (en) | 2000-11-14 |
Family
ID=31722345
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002298428A Expired - Fee Related CA2298428C (en) | 2000-02-10 | 2000-02-10 | Battery charging circuit |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2298428C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019224136A1 (en) * | 2018-05-21 | 2019-11-28 | Scandinova Systems Ab | Output rectifier and arrangement comprising an output rectifier |
-
2000
- 2000-02-10 CA CA002298428A patent/CA2298428C/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019224136A1 (en) * | 2018-05-21 | 2019-11-28 | Scandinova Systems Ab | Output rectifier and arrangement comprising an output rectifier |
US11296529B2 (en) | 2018-05-21 | 2022-04-05 | Scandinova Systems Ab | Output rectifier and arrangement comprising an output rectifier |
Also Published As
Publication number | Publication date |
---|---|
CA2298428C (en) | 2000-11-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |