JPS5484223A - Switching power source circuit - Google Patents
Switching power source circuitInfo
- Publication number
- JPS5484223A JPS5484223A JP15134277A JP15134277A JPS5484223A JP S5484223 A JPS5484223 A JP S5484223A JP 15134277 A JP15134277 A JP 15134277A JP 15134277 A JP15134277 A JP 15134277A JP S5484223 A JPS5484223 A JP S5484223A
- Authority
- JP
- Japan
- Prior art keywords
- power source
- circuit
- output side
- time
- switching power
- 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
- Dc-Dc Converters (AREA)
Abstract
PURPOSE: To prevent abnormal operation at the time of connecting power source with such an arrangement that a pulse signal from an oscillating circuit is supplied to a pulse width modulator when the detection level of a voltage detection circuit reaches a predetermined value.
CONSTITUTION: The output side of a control circuit power source 13 is connected to a voltage detection circuit 14, which serves to detect the power source output voltage and produce a reset pulse after a predetermined period of time, and the output side of which is in turn connected through an inverter 15 to one input terminal of an AND circuit 16 having the other input terminal connected to the output side of an oscillating circuit 11 and the output terminal connected to a pulse width modulator 10. With this arrangement, switching operation of the switching power source circuit can be obtained with the oscillating circuit always in the steady state, so that it is possible to prevent abnormal operation at the time of connecting the power source and ensure stability of the circuit itself.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15134277A JPS6024665B2 (en) | 1977-12-16 | 1977-12-16 | switching power supply circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15134277A JPS6024665B2 (en) | 1977-12-16 | 1977-12-16 | switching power supply circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5484223A true JPS5484223A (en) | 1979-07-05 |
JPS6024665B2 JPS6024665B2 (en) | 1985-06-14 |
Family
ID=15516464
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15134277A Expired JPS6024665B2 (en) | 1977-12-16 | 1977-12-16 | switching power supply circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6024665B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0370724U (en) * | 1989-11-08 | 1991-07-16 |
-
1977
- 1977-12-16 JP JP15134277A patent/JPS6024665B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6024665B2 (en) | 1985-06-14 |
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