JPH033187U - - Google Patents
Info
- Publication number
- JPH033187U JPH033187U JP6384389U JP6384389U JPH033187U JP H033187 U JPH033187 U JP H033187U JP 6384389 U JP6384389 U JP 6384389U JP 6384389 U JP6384389 U JP 6384389U JP H033187 U JPH033187 U JP H033187U
- Authority
- JP
- Japan
- Prior art keywords
- charging circuit
- capacitor
- transformer
- switching element
- primary winding
- 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 5
- 238000010586 diagram Methods 0.000 description 4
- 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した回路図；第
２図は本考案の他の実施例を示した回路図；第３
図は従来例を示した回路図である。
Ｅ１……直流電源、ＴＲ１……インバータトラ
ンジスタ（スイツチング素子）、Ｔｆ……トラン
ス、Ｎ１……一次巻線、Ｎ２……帰還巻線、Ｎ３
……二次巻線、Ｒ１，Ｒ２，Ｒ３……抵抗、Ｃ１
……コンデンサ、Ｄ１……トリガダイオード、Ｄ
２……整流ダイオード、Ｃ２……平滑コンデンサ
、ＺＤ１……ツエナーダイオード。
Fig. 1 is a circuit diagram showing one embodiment of the invention; Fig. 2 is a circuit diagram showing another embodiment of the invention; Fig. 3 is a circuit diagram showing another embodiment of the invention;
The figure is a circuit diagram showing a conventional example. E1...DC power supply, TR1...Inverter transistor (switching element), Tf...Transformer, N1...Primary winding, N2...Feedback winding, N3
...Secondary winding, R1, R2, R3...Resistance, C1
... Capacitor, D1 ... Trigger diode, D
2... Rectifier diode, C2... Smoothing capacitor, ZD1... Zener diode.
Claims (1)
該トランスの一次巻線に接続されたスイツチング
素子と； 抵抗とコンデンサを直列接続した充電回路と；
該充電回路のコンデンサ充電電圧が所定値に達し
た時に導通して前記スイツチング素子をオンする
と共に前記コンデンサ放電させるトリガダイオー
ドと； を備えたことを特徴とするＤＣ−ＤＣコンバー
タ。 (2) 前記充電回路と並列に充電回路供給電圧を
一定電圧に保つツエナーダイオードを接続したこ
とを特徴とする請求項１記載のＤＣ−ＤＣコンバ
ータ。[Claims for Utility Model Registration] (1) A transformer comprising a primary winding and a secondary winding;
a switching element connected to the primary winding of the transformer; a charging circuit including a resistor and a capacitor connected in series;
A DC-DC converter comprising: a trigger diode that becomes conductive when a capacitor charging voltage of the charging circuit reaches a predetermined value to turn on the switching element and discharge the capacitor. (2) The DC-DC converter according to claim 1, further comprising a Zener diode connected in parallel with the charging circuit to maintain the charging circuit supply voltage at a constant voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6384389U JPH033187U (en) | 1989-05-31 | 1989-05-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6384389U JPH033187U (en) | 1989-05-31 | 1989-05-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH033187U true JPH033187U (en) | 1991-01-14 |
Family
ID=31594252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6384389U Pending JPH033187U (en) | 1989-05-31 | 1989-05-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH033187U (en) |
-
1989
- 1989-05-31 JP JP6384389U patent/JPH033187U/ja active Pending