JPS62149283U - - Google Patents
Info
- Publication number
- JPS62149283U JPS62149283U JP3711486U JP3711486U JPS62149283U JP S62149283 U JPS62149283 U JP S62149283U JP 3711486 U JP3711486 U JP 3711486U JP 3711486 U JP3711486 U JP 3711486U JP S62149283 U JPS62149283 U JP S62149283U
- Authority
- JP
- Japan
- Prior art keywords
- switching transistor
- capacitor
- winding
- turned
- circuit
- 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
- 238000004804 winding Methods 0.000 claims description 13
- 239000003990 capacitor Substances 0.000 claims description 8
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
Landscapes
- Dc-Dc Converters (AREA)
Description
第１図は本考案の実施例に係わるスイツチング
レギユレータを示す回路図、第２図は従来のスイ
ツチングレギユレータを示す回路図である。
１……電源、２……トランス、３……１次巻線
、４……スイツチングトランジスタ、５……２次
巻線、８……整流回路、９……３次巻線、１９…
…逆充電阻止用ダイオード、２０……第１のコン
デンサ、２１……充電用ダイオード、２２……放
電用抵抗、２４……第２のコンデンサ。
FIG. 1 is a circuit diagram showing a switching regulator according to an embodiment of the present invention, and FIG. 2 is a circuit diagram showing a conventional switching regulator. DESCRIPTION OF SYMBOLS 1... Power supply, 2... Transformer, 3... Primary winding, 4... Switching transistor, 5... Secondary winding, 8... Rectifier circuit, 9... Tertiary winding, 19...
...Reverse charging blocking diode, 20... First capacitor, 21... Charging diode, 22... Discharging resistor, 24... Second capacitor.
Claims (1)
スイツチングトランジスタ４との直列回路と、前
記１次巻線３に電磁結合された２次巻線５と、前
記２次巻線５に接続され、前記スイツチングトラ
ンジスタ４のオフ時にオンになるダイオード６を
含んでいる整流回路８と、前記１次巻線３及び前
記２次巻線５に電磁結合され且つ前記スイツチン
グトランジスタ４のベースとエミツタとの間に接
続された３次巻線９と、前記スイツチングトラン
ジスタ４のベースに接続された定電圧制御回路と
を具備する直流変換器に於いて、 前記３次巻線９と前記スイツチングトランジス
タ４との間に接続された第１のコンデンサ２０と
、 前記スイツチングトランジスタ４のオン時に前
記３次巻線９に誘起する電圧でオフになる極性を
有して前記第１のコンデンサ２０と前記３次巻線
９との間に接続された逆充電阻止用ダイオード１
９と、 前記スイツチングトランジスタ４のオフ時にお
ける前記トランス２の電圧で前記第１のコンデン
サ２０を充電する充電回路と、 前記第１のコンデンサ２０と前記スイツチング
トランジスタ４のベース・エミツタ間との直列回
路に対して並列に接続された抵抗２２と、 少なくとも前記逆充電阻止用ダイオード１９に
対して並列接続されている第２のコンデンサ２４
と を備えていることを特徴とするトランジスタ直流
変換器。[Claims for Utility Model Registration] A series circuit of a transformer primary winding 3 connected to a DC power supply 1 and a switching transistor 4, a secondary winding 5 electromagnetically coupled to the primary winding 3, A rectifier circuit 8 is connected to the secondary winding 5 and includes a diode 6 that is turned on when the switching transistor 4 is turned off, and is electromagnetically coupled to the primary winding 3 and the secondary winding 5 and In the DC converter, the DC converter includes a tertiary winding 9 connected between the base and emitter of the switching transistor 4, and a constant voltage control circuit connected to the base of the switching transistor 4. a first capacitor 20 connected between the tertiary winding 9 and the switching transistor 4; and a first capacitor 20 having a polarity that is turned off by a voltage induced in the tertiary winding 9 when the switching transistor 4 is turned on. and a reverse charging blocking diode 1 connected between the first capacitor 20 and the tertiary winding 9.
9; a charging circuit that charges the first capacitor 20 with the voltage of the transformer 2 when the switching transistor 4 is off; and a charging circuit that charges the first capacitor 20 between the base and emitter of the switching transistor 4; A resistor 22 connected in parallel to the series circuit; and a second capacitor 24 connected in parallel to at least the reverse charge blocking diode 19.
A transistor direct current converter comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3711486U JPH0242077Y2 (en) | 1986-03-14 | 1986-03-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3711486U JPH0242077Y2 (en) | 1986-03-14 | 1986-03-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62149283U true JPS62149283U (en) | 1987-09-21 |
| JPH0242077Y2 JPH0242077Y2 (en) | 1990-11-08 |
Family
ID=30848150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3711486U Expired JPH0242077Y2 (en) | 1986-03-14 | 1986-03-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0242077Y2 (en) |
-
1986
- 1986-03-14 JP JP3711486U patent/JPH0242077Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0242077Y2 (en) | 1990-11-08 |