JPH01157588U - - Google Patents
Info
- Publication number
- JPH01157588U JPH01157588U JP5143588U JP5143588U JPH01157588U JP H01157588 U JPH01157588 U JP H01157588U JP 5143588 U JP5143588 U JP 5143588U JP 5143588 U JP5143588 U JP 5143588U JP H01157588 U JPH01157588 U JP H01157588U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- stage
- base
- power
- drive
- 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 4
- 230000000295 complement effect Effects 0.000 claims 1
- 230000000630 rising effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Description
第１図は本考案の一実施例の回路を示す接続図
、第２図は本実施例のトランジスタのベース電流
波形図、第３図はトランジスタインバータの構成
を示す略線図、第４図は従来例を示す接続図、第
５図は従来例のトランジスタのベース電流波形図
、第６図はその要部拡大図である。
１乃至４…第１乃至第４のトランジスタ、５…
フオトカプラー、８…コンデンサ、９…ダイオー
ド。
Fig. 1 is a connection diagram showing a circuit of an embodiment of the present invention, Fig. 2 is a base current waveform diagram of the transistor of this embodiment, Fig. 3 is a schematic diagram showing the configuration of a transistor inverter, and Fig. 4 is A connection diagram showing a conventional example, FIG. 5 is a base current waveform diagram of a transistor in the conventional example, and FIG. 6 is an enlarged view of the main part thereof. 1 to 4...first to fourth transistors, 5...
Photocoupler, 8...capacitor, 9...diode.
Claims (1)
ンバータＩＣにおいて、前記パワー段へ電流を流
し込むための前記駆動段に過電流を抑制するため
のコンデンサが接続されることを特徴とするパワ
ーインバータの駆動回路。 (2) 前記駆動段は、制御回路からの入力に応動
する第３のＮＰＮ形のトランジスタを設け、前記
第３のトランジスタの後段に相補的な第１、第２
のトランジスタを備え、前記制御回路から前記第
１のＰＮＰ形トランジスタのベースへ接続し、前
記第３のトランジスタのコレクタから前記第２の
ＮＰＮ形トランジスタに接続し、前記第１及び第
２のトランジスタのコレクタ相互を第２の抵抗を
経て接続し、ベース電流の立上り波形を滑らかに
するために前記第１のトランジスタのベース、エ
ミツタ間にコンデンサを接続し、前記第２の抵抗
と前記第２のトランジスタとの接続点をパワー段
の第４のトランジスタのベースに接続し、前記第
４のトランジスタのエミツタにダイオードを直列
に接続し、前記ダイオードの両端にコンデンサを
接続してなることを特徴とする請求項１記載のパ
ワーインバータの駆動回路。[Claims for Utility Model Registration] (1) In a power inverter IC formed of a drive stage and a power stage, a capacitor for suppressing overcurrent is connected to the drive stage for flowing current into the power stage. A power inverter drive circuit characterized by: (2) The drive stage includes a third NPN type transistor that responds to the input from the control circuit, and complementary first and second transistors are provided at a stage subsequent to the third transistor.
the control circuit is connected to the base of the first PNP transistor, the collector of the third transistor is connected to the second NPN transistor, and the control circuit is connected to the base of the first PNP transistor, the collector of the third transistor is connected to the second NPN transistor, and The collectors are connected to each other via a second resistor, a capacitor is connected between the base and emitter of the first transistor to smooth the rising waveform of the base current, and the second resistor and the second transistor are connected to each other. A connection point with a fourth transistor of the power stage is connected to the base of a fourth transistor of the power stage, a diode is connected in series to the emitter of the fourth transistor, and a capacitor is connected to both ends of the diode. A drive circuit for the power inverter according to item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988051435U JP2540294Y2 (en) | 1988-04-15 | 1988-04-15 | Power inverter drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988051435U JP2540294Y2 (en) | 1988-04-15 | 1988-04-15 | Power inverter drive circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01157588U true JPH01157588U (en) | 1989-10-31 |
| JP2540294Y2 JP2540294Y2 (en) | 1997-07-02 |
Family
ID=31277459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988051435U Expired - Lifetime JP2540294Y2 (en) | 1988-04-15 | 1988-04-15 | Power inverter drive circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2540294Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57113693U (en) * | 1980-12-29 | 1982-07-14 | ||
| JPS62285671A (en) * | 1986-06-02 | 1987-12-11 | Matsushita Refrig Co | Transistor inverter device |
-
1988
- 1988-04-15 JP JP1988051435U patent/JP2540294Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57113693U (en) * | 1980-12-29 | 1982-07-14 | ||
| JPS62285671A (en) * | 1986-06-02 | 1987-12-11 | Matsushita Refrig Co | Transistor inverter device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2540294Y2 (en) | 1997-07-02 |