JPH042128U - - Google Patents
Info
- Publication number
- JPH042128U JPH042128U JP4194690U JP4194690U JPH042128U JP H042128 U JPH042128 U JP H042128U JP 4194690 U JP4194690 U JP 4194690U JP 4194690 U JP4194690 U JP 4194690U JP H042128 U JPH042128 U JP H042128U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- base
- drive circuit
- power supply
- emitter
- 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 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Dc-Dc Converters (AREA)
- Power Conversion In General (AREA)
- Electronic Switches (AREA)
Description
第１図は本考案の一実施例の駆動回路を用いた
スイツチング電源の回路図、第２図は従来の駆動
回路を用いたスイツチング電源の回路図である。
１……プツシユプル形駆動回路、２……制御回
路、Ｑ１……ＰＮＰトランジスタ、Ｑ２，ＱＡ…
…ＮＰＮトランジスタ、ＱＢ……スイツチングト
ランジスタ、Ｒ１〜Ｒ５……抵抗、Ｃ１……コン
デンサ、Ｄ１……ダイオード、Ｔ……トランス、
ＩＮ……プツシユプル形駆動回路の入力端子、Ｏ
ＵＴ……プツシユプル形駆動回路の出力端子。
FIG. 1 is a circuit diagram of a switching power supply using a drive circuit according to an embodiment of the present invention, and FIG. 2 is a circuit diagram of a switching power supply using a conventional drive circuit. 1...Push-pull type drive circuit, 2...Control circuit, Q1 ...PNP transistor, Q2 , QA...
...NPN transistor, QB...switching transistor, R1 to R5 ...resistance, C1 ...capacitor, D1 ...diode, T...transformer,
IN...Input terminal of push-pull type drive circuit, O
UT...Output terminal of push-pull type drive circuit.
Claims (1)
ちの一方のトランジスタのエミツタが電源に接続
され、他方のトランジスタのエミツタが接地され
ると共に、ＰＮＰトランジスタのコレクタとＮＰ
Ｎトランジスタのコレクタとを相互に接続して出
力とするプツシユプル回路型の駆動回路において
、一方が電源に接続され他方が入力端子と前記一
方のトランジスタのベースとの接続点とに接続さ
れる抵抗と、前記他方のトランジスタのベース・
エミツタ間に逆並列接続されるダイオードと、前
記一方のトランジスタのベースと前記他方のトラ
ンジスタのベースとの間に接続されるコンデンサ
とを備えることを特徴とする駆動回路。 The emitter of one of the PNP transistor and the NPN transistor is connected to the power supply, the emitter of the other transistor is grounded, and the collector of the PNP transistor and the NP
In a push-pull circuit type drive circuit in which the collectors of N transistors are interconnected to produce an output, one resistor is connected to a power supply and the other is connected to a connection point between an input terminal and the base of one of the transistors. , the base of the other transistor
A drive circuit comprising: a diode connected in antiparallel between emitters; and a capacitor connected between the base of the one transistor and the base of the other transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4194690U JPH0728739Y2 (en) | 1990-04-19 | 1990-04-19 | Drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4194690U JPH0728739Y2 (en) | 1990-04-19 | 1990-04-19 | Drive circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH042128U true JPH042128U (en) | 1992-01-09 |
| JPH0728739Y2 JPH0728739Y2 (en) | 1995-06-28 |
Family
ID=31553053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4194690U Expired - Lifetime JPH0728739Y2 (en) | 1990-04-19 | 1990-04-19 | Drive circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0728739Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60115079U (en) * | 1984-01-13 | 1985-08-03 | 半場 新一 | cup with stand |
| JPH01161671U (en) * | 1988-04-30 | 1989-11-09 |
-
1990
- 1990-04-19 JP JP4194690U patent/JPH0728739Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60115079U (en) * | 1984-01-13 | 1985-08-03 | 半場 新一 | cup with stand |
| JPH01161671U (en) * | 1988-04-30 | 1989-11-09 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0728739Y2 (en) | 1995-06-28 |