CA2298428A1 - Battery charging circuit - Google Patents

Battery charging circuit Download PDF

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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
Application number
CA 2298428
Other languages
French (fr)
Other versions
CA2298428C (en
Inventor
David Kelly
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CA002298428A priority Critical patent/CA2298428C/en
Priority to CA 2306438 priority patent/CA2306438A1/en
Publication of CA2298428A1 publication Critical patent/CA2298428A1/en
Application granted granted Critical
Publication of CA2298428C publication Critical patent/CA2298428C/en
Priority to CA002331916A priority patent/CA2331916A1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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.
CA002298428A 2000-02-10 2000-02-10 Battery charging circuit Expired - Fee Related CA2298428C (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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