JPS6450762A - Switching power supply circuit - Google Patents
Switching power supply circuitInfo
- Publication number
- JPS6450762A JPS6450762A JP20788187A JP20788187A JPS6450762A JP S6450762 A JPS6450762 A JP S6450762A JP 20788187 A JP20788187 A JP 20788187A JP 20788187 A JP20788187 A JP 20788187A JP S6450762 A JPS6450762 A JP S6450762A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- diode
- transformer
- winding
- 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
Abstract
PURPOSE:To reduce a switching loss by inhibiting a forward current of a Zener diode by a diode when a secondary side output of a saturable transformer is inverted to turn off a switching element. CONSTITUTION:A switching power supply circuit connects one end of a primary winding L1 of a main transformer 1 to the earth through source drains of a switching element 3 by a MOS-FET transistor, and supplies a load with output voltage by interrupting a flow of current in this primary winding L1 by the transistor FET3 through a secondary winding L2 and a diode D1 or the like. Providing a feedback winding Lb in the transformer 1, this feedback winding Lb is connected to a primary winding of a satuable transformer 2 through a coupled circuit 4 by a parallel circuit or the like of a capacitor C2 and a resistor R1, thus forming a loop circuit. A series circuit or the like of a diode D4 and a Zener diode ZD1 is provided between gate sources of the transistor FET3. By the circuit thus obtained, large fluctuating input and load can be absorbed in a primary side converter part.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20788187A JPS6450762A (en) | 1987-08-21 | 1987-08-21 | Switching power supply circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20788187A JPS6450762A (en) | 1987-08-21 | 1987-08-21 | Switching power supply circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6450762A true JPS6450762A (en) | 1989-02-27 |
JPH0368631B2 JPH0368631B2 (en) | 1991-10-29 |
Family
ID=16547104
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20788187A Granted JPS6450762A (en) | 1987-08-21 | 1987-08-21 | Switching power supply circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6450762A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003088122A (en) * | 2001-09-14 | 2003-03-20 | Densei Lambda Kk | Multiple-output switching power supply |
US10199950B1 (en) | 2013-07-02 | 2019-02-05 | Vlt, Inc. | Power distribution architecture with series-connected bus converter |
-
1987
- 1987-08-21 JP JP20788187A patent/JPS6450762A/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003088122A (en) * | 2001-09-14 | 2003-03-20 | Densei Lambda Kk | Multiple-output switching power supply |
US10199950B1 (en) | 2013-07-02 | 2019-02-05 | Vlt, Inc. | Power distribution architecture with series-connected bus converter |
US10594223B1 (en) | 2013-07-02 | 2020-03-17 | Vlt, Inc. | Power distribution architecture with series-connected bus converter |
US11075583B1 (en) | 2013-07-02 | 2021-07-27 | Vicor Corporation | Power distribution architecture with series-connected bus converter |
US11705820B2 (en) | 2013-07-02 | 2023-07-18 | Vicor Corporation | Power distribution architecture with series-connected bus converter |
Also Published As
Publication number | Publication date |
---|---|
JPH0368631B2 (en) | 1991-10-29 |
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