JPH0434896U - - Google Patents
Info
- Publication number
- JPH0434896U JPH0434896U JP1990071117U JP7111790U JPH0434896U JP H0434896 U JPH0434896 U JP H0434896U JP 1990071117 U JP1990071117 U JP 1990071117U JP 7111790 U JP7111790 U JP 7111790U JP H0434896 U JPH0434896 U JP H0434896U
- Authority
- JP
- Japan
- Prior art keywords
- load
- transistor
- output transistor
- potential side
- voltage pulse
- 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
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Control Of Direct Current Motors (AREA)
Description
第１図は、この考案の一実施例を示す駆動回路
図、第２図は同じく動作時の電位図、第３図は他
の実施例の駆動回路図、第４図は従来の駆動回路
図、第５図は同じく動作時の電位図である。
３，４……トランジスタ、６……出力トランジ
スタ、７……負荷、８……ダイオード、９，１２
……高圧パルスクランプ用トランジスタ、１０…
…ダイオード。
Fig. 1 is a drive circuit diagram showing one embodiment of this invention, Fig. 2 is a potential diagram during operation, Fig. 3 is a drive circuit diagram of another embodiment, and Fig. 4 is a conventional drive circuit diagram. , FIG. 5 is a potential diagram during operation. 3, 4...Transistor, 6...Output transistor, 7...Load, 8...Diode, 9,12
...Transistor for high voltage pulse clamp, 10...
…diode.
Claims (1)
おり、この負荷および出力トランジスタに電源電
流が供給される負荷駆動回路において、 前記負荷の高電位側に、高圧パルスクランプ用
トランジスタのベースが接続され、負荷の低電位
側と、出力トランジスタの入力側とに、前記低電
位側から、前記入力側に向けた電流路が形成され
るように、高圧パルスクランプ用トランジスタの
エミツタとコレクタとが接続されていることを特
徴とする負荷駆動回路。[Claims for Utility Model Registration] In a load drive circuit in which a load and an output transistor are connected in series and a power supply current is supplied to the load and the output transistor, a high voltage pulse clamp is provided on the high potential side of the load. The base of the transistor is connected to the emitter of the transistor for high-voltage pulse clamping so that a current path from the low potential side to the input side is formed between the low potential side of the load and the input side of the output transistor. and a collector are connected to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990071117U JPH0434896U (en) | 1990-07-05 | 1990-07-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990071117U JPH0434896U (en) | 1990-07-05 | 1990-07-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0434896U true JPH0434896U (en) | 1992-03-24 |
Family
ID=31607865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990071117U Pending JPH0434896U (en) | 1990-07-05 | 1990-07-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0434896U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009051235A1 (en) * | 2007-10-17 | 2009-04-23 | Mitsumi Electric Co., Ltd. | Motor drive circuit and semiconductor integrated circuit device using the same |
-
1990
- 1990-07-05 JP JP1990071117U patent/JPH0434896U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009051235A1 (en) * | 2007-10-17 | 2009-04-23 | Mitsumi Electric Co., Ltd. | Motor drive circuit and semiconductor integrated circuit device using the same |
| JP2009100560A (en) * | 2007-10-17 | 2009-05-07 | Mitsumi Electric Co Ltd | Motor drive circuit and semiconductor integrated circuit device using the same |
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