JPH01157585U - - Google Patents
Info
- Publication number
- JPH01157585U JPH01157585U JP5027488U JP5027488U JPH01157585U JP H01157585 U JPH01157585 U JP H01157585U JP 5027488 U JP5027488 U JP 5027488U JP 5027488 U JP5027488 U JP 5027488U JP H01157585 U JPH01157585 U JP H01157585U
- Authority
- JP
- Japan
- Prior art keywords
- power
- transformer
- source
- power mosfet
- drain
- 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.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 2
- 238000009499 grossing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Rectifiers (AREA)
- Ac-Ac Conversion (AREA)
Description
第1図はこの発明の一実施例によるスイツチン
グ電源装置を示す回路図、第2図は従来のスイツ
チング電源装置を示す回路図である。
図において1はパワーMOSFET、2は駆動
回路、3はトランス、5は入力交流電源、9は突
入防止回路、10は整流平滑回路である。なお図
中、同一符号は同一、又は相当部分を示す。
FIG. 1 is a circuit diagram showing a switching power supply device according to an embodiment of the present invention, and FIG. 2 is a circuit diagram showing a conventional switching power supply device. In the figure, 1 is a power MOSFET, 2 is a drive circuit, 3 is a transformer, 5 is an input AC power supply, 9 is an inrush prevention circuit, and 10 is a rectifier and smoothing circuit. In the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
に接続され、上記トランスの1次側の他方の端子
にパワーMOSFETのドレインが接続され、上
記パワーMOSFETのソースにもう1つのパワ
ーMOSFETのソースが接続され、このパワー
MOSFETのドレインが入力交流電源に接続さ
れており、また上記2つのパワーMOSFETは
、1つの駆動回路で制御駆動し、1次側電流をオ
ン・オフさせることによつて上記トランスの2次
側出力を整流し、所定の直流電源出力を得ること
を特徴とするスイツチング電源装置。 An input AC power source is connected to one terminal on the primary side of the transformer, a drain of a power MOSFET is connected to the other terminal on the primary side of the transformer, and a source of another power MOSFET is connected to the source of the power MOSFET. The drain of this power MOSFET is connected to the input AC power supply, and the two power MOSFETs are controlled and driven by one drive circuit to turn on and off the primary current, thereby controlling the transformer. A switching power supply device characterized by rectifying the secondary side output of the converter to obtain a predetermined DC power output.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5027488U JPH01157585U (en) | 1988-04-13 | 1988-04-13 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5027488U JPH01157585U (en) | 1988-04-13 | 1988-04-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH01157585U true JPH01157585U (en) | 1989-10-31 |
Family
ID=31276334
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5027488U Pending JPH01157585U (en) | 1988-04-13 | 1988-04-13 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH01157585U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH048166A (en) * | 1990-04-24 | 1992-01-13 | Sanken Electric Co Ltd | Power supply |
-
1988
- 1988-04-13 JP JP5027488U patent/JPH01157585U/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH048166A (en) * | 1990-04-24 | 1992-01-13 | Sanken Electric Co Ltd | Power supply |