JPH0425475U - - Google Patents
Info
- Publication number
- JPH0425475U JPH0425475U JP6615790U JP6615790U JPH0425475U JP H0425475 U JPH0425475 U JP H0425475U JP 6615790 U JP6615790 U JP 6615790U JP 6615790 U JP6615790 U JP 6615790U JP H0425475 U JPH0425475 U JP H0425475U
- Authority
- JP
- Japan
- Prior art keywords
- diode
- transformer
- series
- capacitor
- parallel
- 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
- 238000004804 winding Methods 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000009499 grossing Methods 0.000 description 1
Landscapes
- Dc-Dc Converters (AREA)
Description
第１図は本考案の一実施例を示す回路構成図、
第２図は従来の動作を説明するための回路図であ
る。
１……直流入力電源、２……トランス、３……
トランジスタ、４……ダイオード、５……コンデ
ンサ、６……抵抗器、７……トランス１次巻線、
８……トランス２次巻線、９……整流平滑回路、
１０……負荷抵抗、１１……帰還回路、１２……
制御回路、１３……ダイオード、１４……ダイオ
ード。
FIG. 1 is a circuit diagram showing an embodiment of the present invention;
FIG. 2 is a circuit diagram for explaining the conventional operation. 1...DC input power supply, 2...Transformer, 3...
Transistor, 4...Diode, 5...Capacitor, 6...Resistor, 7...Transformer primary winding,
8... Transformer secondary winding, 9... Rectifier smoothing circuit,
10...Load resistance, 11...Feedback circuit, 12...
Control circuit, 13... diode, 14... diode.
Claims (1)
源において、該電源トランスの１次巻線とスイツ
チ素子の直列接続回路に直流入力電源を並列接続
し、第１のダイオードとコンデンサと第２のダイ
オードとが直列に接続された直列回路を、前記ト
ランスの１次巻線と並列に接続し、前記第１のダ
イオードと前記コンデンサの接続点と直流入力電
源の一端との間に抵抗器を接続し、前記コンデン
サと前記第２のダイオードの接続点と、直流入力
電源の他端との間に第３のダイオードを接続する
ことを特徴とする電圧クランプ回路。 (2) 前記電源トランスの１次巻線と直列に接続
されたスイツチ素子の“オン・オフ”時間を、前
記電源トランスの２次巻線の出力電圧により帰還
制御することを更に特徴とする請求項(1)に記載
の電圧クランプ回路。[Claims for Utility Model Registration] (1) In a switching power supply having a power conversion transformer, a DC input power supply is connected in parallel to a series connection circuit of the primary winding of the power supply transformer and a switching element, and a first diode and a capacitor are connected in parallel. A series circuit in which a and a second diode are connected in series is connected in parallel with the primary winding of the transformer, and between the connection point of the first diode and the capacitor and one end of the DC input power source. A voltage clamp circuit characterized in that a resistor is connected, and a third diode is connected between a connection point between the capacitor and the second diode and the other end of the DC input power source. (2) A claim further characterized in that the "on/off" time of a switch element connected in series with the primary winding of the power transformer is feedback-controlled by the output voltage of the secondary winding of the power transformer. The voltage clamp circuit described in item (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6615790U JPH0425475U (en) | 1990-06-22 | 1990-06-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6615790U JPH0425475U (en) | 1990-06-22 | 1990-06-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0425475U true JPH0425475U (en) | 1992-02-28 |
Family
ID=31598626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6615790U Pending JPH0425475U (en) | 1990-06-22 | 1990-06-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0425475U (en) |
-
1990
- 1990-06-22 JP JP6615790U patent/JPH0425475U/ja active Pending
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