JPH03103629U - - Google Patents
Info
- Publication number
- JPH03103629U JPH03103629U JP1066390U JP1066390U JPH03103629U JP H03103629 U JPH03103629 U JP H03103629U JP 1066390 U JP1066390 U JP 1066390U JP 1066390 U JP1066390 U JP 1066390U JP H03103629 U JPH03103629 U JP H03103629U
- Authority
- JP
- Japan
- Prior art keywords
- switching element
- switching
- control terminal
- state
- control signal
- 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
- 238000010586 diagram Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Electronic Switches (AREA)
Description
第１図は本考案の一実施例のリレー駆動回路１
１の電気回路図、第２図はリレー駆動回路１１が
用いられるデイーゼル機関の予熱制御装置１２の
電気的構成を示すブロツク図、第３図は本考案の
他の実施例のリレー駆動回路７１の電気回路図、
第４図は従来技術のリレー駆動回路１の電気回路
図である。
１１，７１……リレー駆動回路、１２……予熱
制御装置、３１，４１……グロープラグリレー、
３２，４２……リレーコイル、３５……グロープ
ラグ、Ｃ１，Ｃ２……コンデンサ、Ｄ１〜Ｄ３…
…ダイオード、Ｒ１〜Ｒ１０……抵抗、ＴＲ２〜
ＴＲ４……トランジスタ。
Figure 1 shows a relay drive circuit 1 of an embodiment of the present invention.
1 is an electrical circuit diagram, FIG. 2 is a block diagram showing the electrical configuration of a diesel engine preheating control device 12 in which the relay drive circuit 11 is used, and FIG. electrical circuit diagram,
FIG. 4 is an electrical circuit diagram of a relay drive circuit 1 of the prior art. 11, 71... Relay drive circuit, 12... Preheating control device, 31, 41... Glow plug relay,
32, 42...Relay coil, 35...Glow plug, C1, C2...Capacitor, D1-D3...
...Diode, R1~R10...Resistor, TR2~
TR4...Transistor.
Claims (1)
えられることによつて第１スイツチング状態とな
り、その制御信号が与えられないときに第２スイ
ツチング状態となる第１スイツチング素子と、 負荷に直列に接続され、前記第１スイツチング
素子が、第１スイツチング状態となつているとき
に導通し、第２スイツチング状態となつていると
きに遮断する第２スイツチング素子と、 前記第２スイツチング素子と負荷との接続点と
、第１スイツチング素子の前記制御端子との間に
介在され、第２スイツチング素子を介して流れる
電流の一部を前記制御信号として前記制御端子に
与える分流回路とを含むことを特徴とするスイツ
チング素子の保護装置。[Claims for Utility Model Registration] A first switching state having a control terminal, which enters a first switching state when a control signal is applied to the control terminal, and enters a second switching state when the control signal is not applied. a switching element, a second switching element connected in series to a load, conductive when the first switching element is in a first switching state, and disconnected when the first switching element is in a second switching state; A shunt that is interposed between a connection point between the second switching element and the load and the control terminal of the first switching element, and supplies a part of the current flowing through the second switching element to the control terminal as the control signal. A protection device for a switching element, comprising a circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990010663U JPH0631783Y2 (en) | 1990-02-05 | 1990-02-05 | Switching element protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990010663U JPH0631783Y2 (en) | 1990-02-05 | 1990-02-05 | Switching element protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03103629U true JPH03103629U (en) | 1991-10-28 |
| JPH0631783Y2 JPH0631783Y2 (en) | 1994-08-22 |
Family
ID=31514222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990010663U Expired - Fee Related JPH0631783Y2 (en) | 1990-02-05 | 1990-02-05 | Switching element protection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0631783Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53163530U (en) * | 1977-05-30 | 1978-12-21 | ||
| JPS63527U (en) * | 1986-06-20 | 1988-01-05 |
-
1990
- 1990-02-05 JP JP1990010663U patent/JPH0631783Y2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53163530U (en) * | 1977-05-30 | 1978-12-21 | ||
| JPS63527U (en) * | 1986-06-20 | 1988-01-05 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0631783Y2 (en) | 1994-08-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |