JPS5757321A - Dc converter - Google Patents
Dc converterInfo
- Publication number
- JPS5757321A JPS5757321A JP13324680A JP13324680A JPS5757321A JP S5757321 A JPS5757321 A JP S5757321A JP 13324680 A JP13324680 A JP 13324680A JP 13324680 A JP13324680 A JP 13324680A JP S5757321 A JPS5757321 A JP S5757321A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- transistor
- output
- winding
- protection against
- 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.)
- Pending
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
- H02M3/338—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 in a self-oscillating arrangement
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
PURPOSE:To limit the output current and to miniaturize a 1-stone type transistor converter, by providing a detecting circuit of output voltage for protection against overcurrent and controlling a transistor for protection against overcurrent with a part of the output of the above-mentioned detecting circuit. CONSTITUTION:An output voltage detecting winding 17 is provided to a transformer 2, and a voltage detecting rectifying circuit comprising a rectfying diode 18 and a capacitor 19 is connected in parallel to the winding 17. This rectifying circuit and the winding 17 form an output voltage detecting circuit 16 for protection against overcurrent. The output of the circuit 16 is divided in terms of voltage by a dividing circuit consisting of resistances 20 and 21 to be supplied to the base of a transistor for protection against overcurrent. The on-period of a converting transistor 4 is shortened by controlling the transistor 4. As a result, the output current (load current) is limited to reduce the electric capacitance of a rectifying diode 7, a winding 5, etc. Thus the converter is miniaturized.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13324680A JPS5757321A (en) | 1980-09-24 | 1980-09-24 | Dc converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13324680A JPS5757321A (en) | 1980-09-24 | 1980-09-24 | Dc converter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5757321A true JPS5757321A (en) | 1982-04-06 |
Family
ID=15100117
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13324680A Pending JPS5757321A (en) | 1980-09-24 | 1980-09-24 | Dc converter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5757321A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5991327A (en) * | 1982-11-17 | 1984-05-26 | Akebono Brake Ind Co Ltd | Load cell |
JPS62217856A (en) * | 1986-03-17 | 1987-09-25 | Fujitsu Ltd | Detector of abnormality in regulated power source |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5435348A (en) * | 1977-08-25 | 1979-03-15 | Toko Inc | Circuit for protecting overcurrent |
-
1980
- 1980-09-24 JP JP13324680A patent/JPS5757321A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5435348A (en) * | 1977-08-25 | 1979-03-15 | Toko Inc | Circuit for protecting overcurrent |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5991327A (en) * | 1982-11-17 | 1984-05-26 | Akebono Brake Ind Co Ltd | Load cell |
JPS62217856A (en) * | 1986-03-17 | 1987-09-25 | Fujitsu Ltd | Detector of abnormality in regulated power source |
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