JPS5534848A - Power source circuit - Google Patents
Power source circuitInfo
- Publication number
- JPS5534848A JPS5534848A JP10723478A JP10723478A JPS5534848A JP S5534848 A JPS5534848 A JP S5534848A JP 10723478 A JP10723478 A JP 10723478A JP 10723478 A JP10723478 A JP 10723478A JP S5534848 A JPS5534848 A JP S5534848A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- power source
- condenser
- transistor
- source voltage
- 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
Abstract
PURPOSE: To provide a constant output voltage by connecting a condenser by means of a diode and a resistor for both ends of the secondary winding, controlling the base of power transistor with the output of transistor, input whereof is fed from the charging voltage of condenser.
CONSTITUTION: Since a voltage generated at the secondary winding L3 is in proportional to the power source voltage, the building-up of charging voltage of condenser C1 is faster as power source voltage becomes high, changing the oscillating frequency continuously against the power source voltage by allowing the power transistor Q1 to turn OFF where transistor Q2 is conducted with the voltage of condenser C1, maintaining a constant energy which is transmitted to the secondary wiring L3, and enabling to maintain a constant output voltage.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53107234A JPS5857073B2 (en) | 1978-08-31 | 1978-08-31 | power circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53107234A JPS5857073B2 (en) | 1978-08-31 | 1978-08-31 | power circuit |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12509183A Division JPH0227913B2 (en) | 1983-07-08 | 1983-07-08 | DENGENKAIRO |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5534848A true JPS5534848A (en) | 1980-03-11 |
JPS5857073B2 JPS5857073B2 (en) | 1983-12-17 |
Family
ID=14453879
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53107234A Expired JPS5857073B2 (en) | 1978-08-31 | 1978-08-31 | power circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5857073B2 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52151814A (en) * | 1976-06-14 | 1977-12-16 | Matsushita Electric Ind Co Ltd | Electric power converting circuit |
-
1978
- 1978-08-31 JP JP53107234A patent/JPS5857073B2/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52151814A (en) * | 1976-06-14 | 1977-12-16 | Matsushita Electric Ind Co Ltd | Electric power converting circuit |
Also Published As
Publication number | Publication date |
---|---|
JPS5857073B2 (en) | 1983-12-17 |
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