JPS54109123A - Switching power circuit - Google Patents
Switching power circuitInfo
- Publication number
- JPS54109123A JPS54109123A JP1693578A JP1693578A JPS54109123A JP S54109123 A JPS54109123 A JP S54109123A JP 1693578 A JP1693578 A JP 1693578A JP 1693578 A JP1693578 A JP 1693578A JP S54109123 A JPS54109123 A JP S54109123A
- Authority
- JP
- Japan
- Prior art keywords
- transformer
- primary coil
- transistors
- transistor
- fixed value
- 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 enhance controlling ability without reduction of efficiency by providing hysteresis to a changing operation of the first and second switching elements on setting inductance of the primary coil of the transformer to the fixed value.
CONSTITUTION: The first and second transistors 6, 7 are connected with the primary coil 4 a of the transformer 4, the pulse width modulator 12 is controlled by voltage of the output terminal 9 to make the output voltage constant, the first and second reference pulses are fed from the terminals 20 a, b to control the transistor 7 in a heavy load or the transistor 6 in a light load to turn on, and inductance of the primary coil 4 a of the transformer 4 is set to the fixed value to provide hysteresis to a changing of transistors 6, 7. Thus, a stable output can be supplied since the changing operation is carried out without interruption.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1693578A JPH0245434B2 (en) | 1978-02-16 | 1978-02-16 | SUITSUCHINGUDENGENKAIRO |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1693578A JPH0245434B2 (en) | 1978-02-16 | 1978-02-16 | SUITSUCHINGUDENGENKAIRO |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54109123A true JPS54109123A (en) | 1979-08-27 |
JPH0245434B2 JPH0245434B2 (en) | 1990-10-09 |
Family
ID=11929972
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1693578A Expired - Lifetime JPH0245434B2 (en) | 1978-02-16 | 1978-02-16 | SUITSUCHINGUDENGENKAIRO |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0245434B2 (en) |
-
1978
- 1978-02-16 JP JP1693578A patent/JPH0245434B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0245434B2 (en) | 1990-10-09 |
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