JPS5687115A - Switching power source - Google Patents
Switching power sourceInfo
- Publication number
- JPS5687115A JPS5687115A JP16435179A JP16435179A JPS5687115A JP S5687115 A JPS5687115 A JP S5687115A JP 16435179 A JP16435179 A JP 16435179A JP 16435179 A JP16435179 A JP 16435179A JP S5687115 A JPS5687115 A JP S5687115A
- Authority
- JP
- Japan
- Prior art keywords
- output voltage
- coil
- output
- overcurrent
- terminals
- 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
Landscapes
- Dc-Dc Converters (AREA)
Abstract
PURPOSE: To ensure a stabilized control and also an interrupting action during the overcurrent when necessary, by using the choke coil incorporated into the Hall device for the smoothing circuit to perform a detection of the output current.
CONSTITUTION: The switching transistor TR2 is inserted in series into the primary winding 1A of the transformer 1; and the rectifying/smoothing circuit consisting of the diodes 3 and 4, choke coil 5 and capacitor 6 is connected to the secondary winding 1B. Thus the output Vo is obtained at the terminals P and N. The Hall IC10 is incorporated into the coil 5, and the output voltage Vh of the IC10 and the output voltage Vo between the terminals P and N are applied to the control circuit 7 which controls the on/off periods of the TR2. Then the output voltage Vh which is proportional to the DC magnetic flux component among the magnetic fluxes caused by the current passing through the coil 5 is delivered from the IC10. In this way, a stabilized control is possible with a simple constitution of circuit along with an interrupting action secured when necessary for the overcurrent.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16435179A JPS5687115A (en) | 1979-12-18 | 1979-12-18 | Switching power source |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16435179A JPS5687115A (en) | 1979-12-18 | 1979-12-18 | Switching power source |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5687115A true JPS5687115A (en) | 1981-07-15 |
Family
ID=15791502
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16435179A Pending JPS5687115A (en) | 1979-12-18 | 1979-12-18 | Switching power source |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5687115A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5963689U (en) * | 1982-10-20 | 1984-04-26 | 東北金属工業株式会社 | Ringing choke converter |
JPS61207172A (en) * | 1985-03-11 | 1986-09-13 | Fujitsu Ltd | Multioutput type constant-current circuit |
JPS61266068A (en) * | 1985-05-20 | 1986-11-25 | Fujitsu Ltd | Constant-current supplying circuit |
JPS63146476U (en) * | 1987-03-13 | 1988-09-27 | ||
JPS63313216A (en) * | 1987-06-17 | 1988-12-21 | Hitachi Ltd | Power factor improving circuit |
JPH0577775U (en) * | 1991-04-12 | 1993-10-22 | 明子 稲木 | Current detector |
-
1979
- 1979-12-18 JP JP16435179A patent/JPS5687115A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5963689U (en) * | 1982-10-20 | 1984-04-26 | 東北金属工業株式会社 | Ringing choke converter |
JPS61207172A (en) * | 1985-03-11 | 1986-09-13 | Fujitsu Ltd | Multioutput type constant-current circuit |
JPS61266068A (en) * | 1985-05-20 | 1986-11-25 | Fujitsu Ltd | Constant-current supplying circuit |
JPS63146476U (en) * | 1987-03-13 | 1988-09-27 | ||
JPS63313216A (en) * | 1987-06-17 | 1988-12-21 | Hitachi Ltd | Power factor improving circuit |
JPH0577775U (en) * | 1991-04-12 | 1993-10-22 | 明子 稲木 | Current detector |
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