JPS5659324A - Switching electric power source - Google Patents
Switching electric power sourceInfo
- Publication number
- JPS5659324A JPS5659324A JP13570279A JP13570279A JPS5659324A JP S5659324 A JPS5659324 A JP S5659324A JP 13570279 A JP13570279 A JP 13570279A JP 13570279 A JP13570279 A JP 13570279A JP S5659324 A JPS5659324 A JP S5659324A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- winding
- power source
- electric power
- rectifying
- 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 make it possible to execute the stable operation by high supply voltage, by forming the structure so that the blocking oscillator can be connected in series to the supply voltage.
CONSTITUTION: Each blocking oscillator 1, 2 uses in common the primary winding L1 of the transformer T1, also has the feedback windings Lf1, Lf2 coupled with the primary winding L1, respectively, and the time when the transistors Q1, Q2 are turned on and off is almost same. The supply to load through the output terminals A, B is executed by switching the primary side of the transformer T1, inducing voltage to the secondary winding L2, and rectifying and smoothing this voltage by the diode D5 and the capacitor C3. In this case, since the flyback voltage proportional to the DC output voltage E0 is generated in the feedback winding Lf2, the DC negative voltage Ec proportional to the DC voltage E0 is obtained by the control circuit 3 by rectifying said voltage, and the base of the transistor Q2 is controlled through the constant-voltage diode ZD1.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54135702A JPS5943907B2 (en) | 1979-10-20 | 1979-10-20 | switching power supply |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54135702A JPS5943907B2 (en) | 1979-10-20 | 1979-10-20 | switching power supply |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5659324A true JPS5659324A (en) | 1981-05-22 |
JPS5943907B2 JPS5943907B2 (en) | 1984-10-25 |
Family
ID=15157889
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54135702A Expired JPS5943907B2 (en) | 1979-10-20 | 1979-10-20 | switching power supply |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5943907B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4745535A (en) * | 1986-03-14 | 1988-05-17 | Mitsubishi Denki Kabushiki Kaisha | Ringing choke type DC/DC converter |
JPH01321859A (en) * | 1988-06-21 | 1989-12-27 | Toyo Electric Mfg Co Ltd | Dc-dc converter |
RU219298U1 (en) * | 2023-05-17 | 2023-07-11 | Общество с ограниченной ответственностью "Петербургский завод измерительных приборов" | POWER SUPPLY FOR LED LIGHT |
-
1979
- 1979-10-20 JP JP54135702A patent/JPS5943907B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4745535A (en) * | 1986-03-14 | 1988-05-17 | Mitsubishi Denki Kabushiki Kaisha | Ringing choke type DC/DC converter |
JPH01321859A (en) * | 1988-06-21 | 1989-12-27 | Toyo Electric Mfg Co Ltd | Dc-dc converter |
RU219298U1 (en) * | 2023-05-17 | 2023-07-11 | Общество с ограниченной ответственностью "Петербургский завод измерительных приборов" | POWER SUPPLY FOR LED LIGHT |
Also Published As
Publication number | Publication date |
---|---|
JPS5943907B2 (en) | 1984-10-25 |
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