JPS6454784U - - Google Patents
Info
- Publication number
- JPS6454784U JPS6454784U JP14939487U JP14939487U JPS6454784U JP S6454784 U JPS6454784 U JP S6454784U JP 14939487 U JP14939487 U JP 14939487U JP 14939487 U JP14939487 U JP 14939487U JP S6454784 U JPS6454784 U JP S6454784U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- collector
- resistor
- voltage source
- base
- 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
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Dc-Dc Converters (AREA)
Description
第１図は本考案の一実施例の回路構成を示す図
、第２図は本考案の他の実施例の回路構成を示す
図、第３図は従来のスイツチング電源回路の構成
を示す図である。
１０１，２０１，３０１…入力端子、１０２，
２０２，３０２…スイツチトランジスタ、１０３
，２０３，３０３…転流ダイオード、１０４，２
０４，３０４…インダクタ、１０５，２０５，３
０５…コンデンサ、１０６，２０６，３０６…出
力端子、１０７，１０８，２０７，２０８，３０
７，３０８…バイアス抵抗、１０９，２０９…定
電圧ダイオード、１１０，２１０…定電圧ダイオ
ード電流用抵抗、１１１，１１２，２１１，２１
２…バイアス抵抗、１１３，２１３…制御トラン
ジスタ、２１４…電圧降下用抵抗、２１５…過電
流保護回路用ダイオード、３０９…基準電圧入力
端子、３１０…非反転入力端子、３１１…反転入
力端子、３１２…制御回路、３１３…制御端子、
３１４…電源入力端子。
Figure 1 is a diagram showing the circuit configuration of one embodiment of the present invention, Figure 2 is a diagram showing the circuit configuration of another embodiment of the invention, and Figure 3 is a diagram showing the configuration of a conventional switching power supply circuit. be. 101, 201, 301...input terminal, 102,
202, 302...Switch transistor, 103
, 203, 303... commutation diode, 104, 2
04,304...Inductor, 105,205,3
05...Capacitor, 106,206,306...Output terminal, 107,108,207,208,30
7,308... Bias resistor, 109,209... Constant voltage diode, 110,210... Constant voltage diode current resistor, 111,112,211,21
2... Bias resistor, 113, 213... Control transistor, 214... Voltage drop resistor, 215... Diode for overcurrent protection circuit, 309... Reference voltage input terminal, 310... Non-inverting input terminal, 311... Inverting input terminal, 312... Control circuit, 313...control terminal,
314...Power input terminal.
Claims (1)
ダクタを介して負荷に接続した第１のトランジス
タと、 この第１のトランジスタとは逆の極性を有し、
コレクタを上記第１のトランジスタのベースと第
１の抵抗を介して接続し、エミツタを上記第１の
トランジスタのコレクタと接続すると共にコンデ
ンサを介して接地し、ベースを第２の抵抗を介し
て基準電圧源に接続すると共に第３の抵抗を介し
て上記第１のトランジスタのコレクタと接続した
第２のトランジスタと を具備したことを特徴とするスイツチング電源回
路。[Claims for Utility Model Registration] A first transistor whose emitter is connected to an input voltage source and whose collector is connected to a load via an inductor; the first transistor has opposite polarity;
The collector is connected to the base of the first transistor via a first resistor, the emitter is connected to the collector of the first transistor and grounded via a capacitor, and the base is connected to the reference via a second resistor. A switching power supply circuit comprising: a second transistor connected to a voltage source and connected to the collector of the first transistor via a third resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14939487U JPS6454784U (en) | 1987-09-30 | 1987-09-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14939487U JPS6454784U (en) | 1987-09-30 | 1987-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6454784U true JPS6454784U (en) | 1989-04-04 |
Family
ID=31421585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14939487U Pending JPS6454784U (en) | 1987-09-30 | 1987-09-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6454784U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH028546A (en) * | 1988-02-02 | 1990-01-12 | Eaton Corp | Method of controlling automatic/semiautomatic mechanical type variable speed gear |
-
1987
- 1987-09-30 JP JP14939487U patent/JPS6454784U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH028546A (en) * | 1988-02-02 | 1990-01-12 | Eaton Corp | Method of controlling automatic/semiautomatic mechanical type variable speed gear |