JPH01119219U - - Google Patents
Info
- Publication number
- JPH01119219U JPH01119219U JP1329088U JP1329088U JPH01119219U JP H01119219 U JPH01119219 U JP H01119219U JP 1329088 U JP1329088 U JP 1329088U JP 1329088 U JP1329088 U JP 1329088U JP H01119219 U JPH01119219 U JP H01119219U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- main
- base
- main transistor
- 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.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Electronic Switches (AREA)
Description
第１図は本考案のものの一実施例を示す回路図
、第２図は従来のものの一例を示す回路図、第３
図は従来のものおよび本考案のものを説明するた
めの波形図である。
Ｃ１，Ｃ２，ＣＤ……コンデンサ、Ｔｒ１……
主トランジスタ、Ｔｒ２……補助トランジスタ、
Ｔｒ３，Ｔｒ４……トランジスタ、Ｒｆ，Ｒｒ，
ＲＬ……抵抗、Ｄ……ダイオード、１……ベース
発生回路、ＶＬ……主電源、ＶＣＣ，ＶＥＥ……
電源。
Fig. 1 is a circuit diagram showing an embodiment of the present invention, Fig. 2 is a circuit diagram showing an example of a conventional one, and Fig. 3 is a circuit diagram showing an example of the conventional one.
The figure is a waveform chart for explaining the conventional one and the one of the present invention. C 1 , C 2 , CD... Capacitor, T r1 ...
Main transistor, T r2 ...auxiliary transistor,
T r3 , T r4 ...transistor, Rf, Rr,
RL...Resistor, D...Diode, 1...Base generation circuit, VL...Main power supply, VCC, VEE...
power supply.
Claims (1)
ときは主トランジスタに接続される主電源より主
トランジスタのベースへオン電流を供給する補助
トランジスタを有し、主トランジスタをオフさせ
るときは主電源とは別の電源より主トランジスタ
のベースへオフ電流を供給するベース駆動回路に
おいて、前記主トランジスタのコレクタ・エミツ
タ間および主トランジスタのベース・エミツタ間
に小容量のコンデンサをそれぞれ接続して構成し
たことを特徴とするトランジスタベース駆動回路
。 When turning on the main transistor to be driven, there is an auxiliary transistor that supplies on-current to the base of the main transistor from the main power supply connected to the main transistor, and when turning off the main transistor, a power supply separate from the main power supply is used. A base drive circuit for supplying off-state current to the base of a main transistor, characterized in that the transistor is configured by connecting small capacitors between the collector and emitter of the main transistor and between the base and emitter of the main transistor. base drive circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1329088U JPH01119219U (en) | 1988-02-03 | 1988-02-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1329088U JPH01119219U (en) | 1988-02-03 | 1988-02-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01119219U true JPH01119219U (en) | 1989-08-11 |
Family
ID=31223468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1329088U Pending JPH01119219U (en) | 1988-02-03 | 1988-02-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01119219U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6043692A (en) * | 1983-08-22 | 1985-03-08 | 株式会社リコー | Cursor display for crt display unit |
-
1988
- 1988-02-03 JP JP1329088U patent/JPH01119219U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6043692A (en) * | 1983-08-22 | 1985-03-08 | 株式会社リコー | Cursor display for crt display unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH01119219U (en) | ||
| JPS63181025U (en) | ||
| JPH0350223U (en) | ||
| JPS6315632U (en) | ||
| JPS62135216U (en) | ||
| JPH0284925U (en) | ||
| JPS63174727U (en) | ||
| JPH01160730U (en) | ||
| JPS63181964U (en) | ||
| JPS63133731U (en) | ||
| JPH01143300U (en) | ||
| JPS607695U (en) | DC motor soft start circuit | |
| JPS62167436U (en) | ||
| JPS5832510U (en) | constant voltage circuit | |
| JPS62117618U (en) | ||
| JPS61204214U (en) | ||
| JPS60123015U (en) | constant current power supply circuit | |
| JPS61100023U (en) | ||
| JPS619932U (en) | Reset signal generator | |
| JPH01142867U (en) | ||
| JPS6057813U (en) | power circuit | |
| JPS58127898U (en) | motor drive circuit | |
| JPS62119133U (en) | ||
| JPH031690U (en) | ||
| JPS63103127U (en) |