JPS588910U - Back electromotive force absorption circuit - Google Patents
Back electromotive force absorption circuitInfo
- Publication number
- JPS588910U JPS588910U JP10191981U JP10191981U JPS588910U JP S588910 U JPS588910 U JP S588910U JP 10191981 U JP10191981 U JP 10191981U JP 10191981 U JP10191981 U JP 10191981U JP S588910 U JPS588910 U JP S588910U
- Authority
- JP
- Japan
- Prior art keywords
- electromotive force
- back electromotive
- absorption circuit
- force absorption
- transistor
- 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
Landscapes
- Electronic Switches (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図ａ１第１図すは従来の逆起電圧吸収回路を設けた
誘導性負荷をパルス駆動したとき誘導性負荷に生ずる電
圧、電流波形図、第２図はバリスタを用いた従来の逆起
電圧吸収回路の特性曲線図、第３図は本考案の一実施例
を示す回路図、第４図、第５図は第３図に示した本考案
による逆起電圧吸収回路の特性曲線図、第６図は本考案
の他の実施例を示す回路図である。
１．２０・・・逆起電圧吸収回路、３・・・電磁ソレノ
イド、９・・・トランジスタ、１１・・・ダイオード、
１２．２１・・・トランジスタ、１３．２２・・・定電
圧 □ダイト、１４． ２３・・・抵抗器、Ｐ・
・・パルス信号。Figure 1 a1 Figure 1 shows the voltage and current waveforms generated in an inductive load when an inductive load equipped with a conventional back electromotive voltage absorption circuit is pulse-driven, and Figure 2 shows a conventional back electromotive force using a varistor. FIG. 3 is a circuit diagram showing an embodiment of the present invention; FIGS. 4 and 5 are characteristic curve diagrams of the back electromotive force absorption circuit according to the present invention shown in FIG. 3; FIG. 6 is a circuit diagram showing another embodiment of the present invention. 1.20... Back electromotive force absorption circuit, 3... Electromagnetic solenoid, 9... Transistor, 11... Diode,
12.21...Transistor, 13.22...Constant voltage □Dite, 14. 23...Resistor, P.
...Pulse signal.
Claims (1)
ずる逆起電圧を吸収するための逆起電圧吸収回路におい
て、前記逆起電圧に対して順方向となるように前記誘導
性素子に並列接続された、ダイオードとトランジスタと
から成る直列回路と、前記逆起電圧により駆動される定
電圧ダイオードと、前記定電圧ダイオードに流れるツェ
ナー電流を前記トランジスタのベースバイアス電流とし
て前記トランジスタに供給する手段とを備えて成ること
を特徴とする逆起電圧吸収回路。In a back electromotive force absorption circuit for absorbing a back electromotive force generated in an inductive element that is turned on and off by a semiconductor element, a back electromotive force is connected in parallel to the inductive element so as to be in a forward direction with respect to the back electromotive force. The device further includes a series circuit including a diode and a transistor, a constant voltage diode driven by the back electromotive force, and means for supplying a Zener current flowing through the constant voltage diode to the transistor as a base bias current of the transistor. A back electromotive force absorption circuit characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10191981U JPS588910U (en) | 1981-07-10 | 1981-07-10 | Back electromotive force absorption circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10191981U JPS588910U (en) | 1981-07-10 | 1981-07-10 | Back electromotive force absorption circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS588910U true JPS588910U (en) | 1983-01-20 |
Family
ID=29896578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10191981U Pending JPS588910U (en) | 1981-07-10 | 1981-07-10 | Back electromotive force absorption circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS588910U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61277369A (en) * | 1985-05-31 | 1986-12-08 | Nec Corp | Fly-back current absorption circuit |
| JP2019176065A (en) * | 2018-03-29 | 2019-10-10 | 新電元メカトロニクス株式会社 | Coil unit and solenoid including the same |
-
1981
- 1981-07-10 JP JP10191981U patent/JPS588910U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61277369A (en) * | 1985-05-31 | 1986-12-08 | Nec Corp | Fly-back current absorption circuit |
| JP2019176065A (en) * | 2018-03-29 | 2019-10-10 | 新電元メカトロニクス株式会社 | Coil unit and solenoid including the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS588910U (en) | Back electromotive force absorption circuit | |
| JPS59131115U (en) | Electromagnetic device drive circuit | |
| JPS60906U (en) | Plunger drive | |
| JPS60114530U (en) | Power supply with permissible input voltage range | |
| JPS6034620U (en) | Overcurrent protection circuit | |
| JPS60114531U (en) | Power supply that prevents under-input voltage | |
| JPS58150332U (en) | Surge voltage blanking circuit | |
| JPS59127340U (en) | drive device | |
| JPS60116598U (en) | gas detection device | |
| JPS6066126U (en) | reset circuit | |
| JPS60193717U (en) | switching circuit | |
| JPS58129711U (en) | Inverted pulse generation circuit | |
| JPS6039121U (en) | protection circuit | |
| JPS58138639U (en) | Printing hammer drive circuit | |
| JPS6130216U (en) | Latching solenoid drive circuit | |
| JPS5914411U (en) | Amplifier power limiting circuit | |
| JPS6144939U (en) | Gate circuit of gate turn-off thyristor | |
| JPS6071923U (en) | Simple feedback constant voltage circuit | |
| JPS5872999U (en) | Pulse motor drive circuit | |
| JPS60152251U (en) | Electromagnetic relay with operation indicator light | |
| JPS5836411U (en) | constant voltage power supply | |
| JPS5828440U (en) | proximity switch | |
| JPS6034738U (en) | Power outage protection device | |
| JPS60125335U (en) | Injector drive circuit | |
| JPS60192022U (en) | Auto clear circuit |