JPS564819A - Electric power supply unit - Google Patents
Electric power supply unitInfo
- Publication number
- JPS564819A JPS564819A JP7942679A JP7942679A JPS564819A JP S564819 A JPS564819 A JP S564819A JP 7942679 A JP7942679 A JP 7942679A JP 7942679 A JP7942679 A JP 7942679A JP S564819 A JPS564819 A JP S564819A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- output
- comparator
- conversion transformer
- power supply
- 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
Landscapes
- Protection Of Static Devices (AREA)
- Dc-Dc Converters (AREA)
- Power Conversion In General (AREA)
Abstract
PURPOSE: To enable to obtain stable output against the variation in load, by inputting the rectified voltage on another winding provided with the conversion transformer to the voltage comparator of the error amplifier for output voltage regulation.
CONSTITUTION: The main switch section 3 is ON or OFF by the control of the oscillation circuit 1 and the pulse width modulation circuit 2 to supply power to the secondary side via the conversion transformer 4. In this case, the rectified voltage VR on another winding L4 provided with the conversion transformer 4 is input to the voltage comparator 24 for the power supply V2 for oscillation circuit 1 and so on. Further, at the voltage comparator 24, the rectified voltage VR and the reference voltage VZ are compared to control the pulse width modulation circuit 2 with the output of comparison is regulating the output. Further, the amplitude of the current is detected with the resistor 22 inserted at the current path of the main switch section 3 and it is compared with the reference voltage VZ at the current comparator 25. Further, if it is judged as overcurrent, the thyristor 9 is conducted to stop the oscillation.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7942679A JPS5923189B2 (en) | 1979-06-22 | 1979-06-22 | power supply |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7942679A JPS5923189B2 (en) | 1979-06-22 | 1979-06-22 | power supply |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS564819A true JPS564819A (en) | 1981-01-19 |
JPS5923189B2 JPS5923189B2 (en) | 1984-05-31 |
Family
ID=13689535
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7942679A Expired JPS5923189B2 (en) | 1979-06-22 | 1979-06-22 | power supply |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5923189B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58166290U (en) * | 1982-04-27 | 1983-11-05 | ソニー株式会社 | switching power supply circuit |
-
1979
- 1979-06-22 JP JP7942679A patent/JPS5923189B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58166290U (en) * | 1982-04-27 | 1983-11-05 | ソニー株式会社 | switching power supply circuit |
JPS635434Y2 (en) * | 1982-04-27 | 1988-02-15 |
Also Published As
Publication number | Publication date |
---|---|
JPS5923189B2 (en) | 1984-05-31 |
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