JPS61123683U - - Google Patents
Info
- Publication number
- JPS61123683U JPS61123683U JP693285U JP693285U JPS61123683U JP S61123683 U JPS61123683 U JP S61123683U JP 693285 U JP693285 U JP 693285U JP 693285 U JP693285 U JP 693285U JP S61123683 U JPS61123683 U JP S61123683U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- switching transistor
- voltage
- terminal
- 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
- 239000003990 capacitor Substances 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 6
- 238000009499 grossing Methods 0.000 claims description 3
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Dc-Dc Converters (AREA)
Description
第１図は本考案の実施例に係わるトランジスタ
安定化電源回路を示す回路図、第２図は従来のト
ランジスタ安定化電源回路を示す回路図、第３図
は第２図の各部の状態を示す波形図である。
１……電源、２……電源端子、３……共通端子
、４……スイツチングトランジスタ、５……出力
端子、６……負荷、７……チヨークコイル、８…
…起動抵抗、９……ベース駆動巻線、１２……平
滑用ダイオード、１３……平滑用コンデンサ、１
４……電圧検出用コンデンサ、１５……電圧検出
用ダイオード、１７，１８……分圧抵抗、１９…
…制御用トランジスタ、２０……誤差増幅用トラ
ンジスタ。
Fig. 1 is a circuit diagram showing a transistor stabilized power supply circuit according to an embodiment of the present invention, Fig. 2 is a circuit diagram showing a conventional transistor stabilized power supply circuit, and Fig. 3 shows the state of each part in Fig. 2. FIG. 1...Power source, 2...Power terminal, 3...Common terminal, 4...Switching transistor, 5...Output terminal, 6...Load, 7...Chiyoke coil, 8...
...Starting resistor, 9...Base drive winding, 12...Smoothing diode, 13...Smoothing capacitor, 1
4... Capacitor for voltage detection, 15... Diode for voltage detection, 17, 18... Voltage dividing resistor, 19...
...Control transistor, 20...Error amplification transistor.
Claims (1)
イツチングトランジスタ４と、 このスイツチングトランジスタ４のエミツタと
出力端子５との間に接続されたチヨークコイル７
と、 前記直流電源端子２と前記スイツチングトラン
ジスタ４のベースとの間に接続された起動抵抗８
と、 前記チヨークコイル７に電磁結合され且つ前記
スイツチングトランジスタ４のエミツタとベース
との間に接続されたベース駆動巻線９と、 前記チヨークコイル７の入力側端子と直流電源
の共通端子３との間に接続された平滑用ダイオー
ド１２と、 前記チヨークコイル７の出力側端子と前記共通
端子３との間に接続された平滑用コンデンサ１３
と、 前記チヨークコイル７の入力側端子にその一端
が接続された電圧検出用コンデンサ１４と、 前記スイツチングトランジスタ４のオフ期間に
オン状態になる極性を有して前記チヨークコイル
７の出力側端子と前記電圧検出用コンデンサ１４
の他端との間に接続された電圧検出用ダイオード
１５と、 前記スイツチングトランジスタのベース電流を
バイパスさせるように前記スイツチングトランジ
スタのベースとエミツタとの間に接続された制御
用トランジスタ１９と、 前記電圧検出用コンデンサ１４の電圧が高くな
つた時に前記制御用トランジスタ１９を流れる電
流が増大するように前記制御用トランジスタ１９
を制御する制御回路と から成るトランジスタ安定化電源回路。 (2) 前記制御回路は、前記電圧検出用コンデン
サに並列接続された分圧抵抗と、前記分圧抵抗の
分圧点の電圧が高くなつた時に前記制御用トラン
ジスタを流れる電流が増大するように前記制御用
トランジスタを制御する誤差増幅回路と、 から成るものである実用新案登録請求の範囲第１
項記載のトランジスタ安定化電源回路。[Claims for Utility Model Registration] (1) A switching transistor 4 whose collector is connected to the DC power supply terminal 2, and a chain coil 7 connected between the emitter of this switching transistor 4 and the output terminal 5.
and a starting resistor 8 connected between the DC power supply terminal 2 and the base of the switching transistor 4.
, a base drive winding 9 electromagnetically coupled to the chiyoke coil 7 and connected between the emitter and the base of the switching transistor 4, and between the input side terminal of the chiyoke coil 7 and the common terminal 3 of the DC power supply. and a smoothing capacitor 13 connected between the output side terminal of the chiyoke coil 7 and the common terminal 3.
a voltage detection capacitor 14, one end of which is connected to the input terminal of the switching transistor 7; Voltage detection capacitor 14
a voltage detection diode 15 connected between the other end of the switching transistor; and a control transistor 19 connected between the base and emitter of the switching transistor so as to bypass the base current of the switching transistor. The control transistor 19 is configured such that the current flowing through the control transistor 19 increases when the voltage of the voltage detection capacitor 14 becomes high.
A transistor stabilized power supply circuit consisting of a control circuit that controls the (2) The control circuit includes a voltage dividing resistor connected in parallel to the voltage detecting capacitor, and a voltage dividing resistor configured to increase the current flowing through the control transistor when a voltage at a voltage dividing point of the voltage dividing resistor increases. and an error amplification circuit that controls the control transistor.
Transistor stabilized power supply circuit described in Section 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP693285U JPH0237273Y2 (en) | 1985-01-22 | 1985-01-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP693285U JPH0237273Y2 (en) | 1985-01-22 | 1985-01-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61123683U true JPS61123683U (en) | 1986-08-04 |
| JPH0237273Y2 JPH0237273Y2 (en) | 1990-10-09 |
Family
ID=30484823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP693285U Expired JPH0237273Y2 (en) | 1985-01-22 | 1985-01-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0237273Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63156578U (en) * | 1987-04-01 | 1988-10-13 | ||
| JP2017108535A (en) * | 2015-12-09 | 2017-06-15 | ローム株式会社 | Switching regulator |
-
1985
- 1985-01-22 JP JP693285U patent/JPH0237273Y2/ja not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63156578U (en) * | 1987-04-01 | 1988-10-13 | ||
| JP2017108535A (en) * | 2015-12-09 | 2017-06-15 | ローム株式会社 | Switching regulator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0237273Y2 (en) | 1990-10-09 |
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