JPS60121335U - Switching element protection device - Google Patents
Switching element protection deviceInfo
- Publication number
- JPS60121335U JPS60121335U JP895084U JP895084U JPS60121335U JP S60121335 U JPS60121335 U JP S60121335U JP 895084 U JP895084 U JP 895084U JP 895084 U JP895084 U JP 895084U JP S60121335 U JPS60121335 U JP S60121335U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- snubber
- snubber circuit
- element forming
- capacitor
- 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
- Protection Of Static Devices (AREA)
- 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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来例のトランジスタインバータ、スナバ回路
例の説明図、第２図は従来例における電圧、電流の変化
の説明図、第３図は本考案に係るトランジスタインバー
タ、スナバ回路実施例の説明図、第４図は本考案回路実
施例の電圧、電流の変化の説明図、
ｌａ、 １ ｂｔ Ｉ Ｃ，１ｄ・・・スイッチン
グ素子トランジスタ、・２ａ、２ｂ、２ｃ、２ｄ・・・
スナバ回路、３ａｔ ３ｂｔ ３ｃｔ ３ｄ・・・順方
向トランジスタ、４ａ、４ｂ、４ｃ、４ｄ・・・コンデ
ンサ、５ａ、５ｂ、５ｃ、５ｄ・・・従来例接続時の放
電抵抗、６ａ＊ ６ｂｔ ６ｃ＊ ’６ｄ−・・本考
案回路例の抵抗。Fig. 1 is an explanatory diagram of an example of a conventional transistor inverter and snubber circuit, Fig. 2 is an explanatory diagram of changes in voltage and current in the conventional example, and Fig. 3 is an explanatory diagram of an example of a transistor inverter and snubber circuit according to the present invention. Figure 4 is an explanatory diagram of changes in voltage and current in the circuit embodiment of the present invention.
Snubber circuit, 3at 3bt 3ct 3d...forward transistor, 4a, 4b, 4c, 4d...capacitor, 5a, 5b, 5c, 5d...discharge resistance when connected to conventional example, 6a* 6bt 6c*' 6d--Resistor of the circuit example of the present invention.
Claims (2)
気回路に直利に設けられ、かつ正極側アームをなす素子
と負極側アームをなす素子とにより構成される少くも１
組のスイッチング素子の夫々に並列に接続されるスナバ
回路であって、前記正極側アームをなす素子と並列に接
続され−る第１のスナバ回路はコンデンサとダイオード
の順に直列に接続され、前記第１のスナバ回路の該コン
デンサと該ダイオニドの接続中間点は負極側電源線に接
続され、 前記負極側アームをなす素子と並列に接続される第２の
スナバ回路は、ダイオードとコンデンサの順に直列に接
続され、第２のスナバ回路の該ダイオードと該コンデン
サの接続中間点は正極側電源線に接続されていることを
特徴とする、 スイッチング素子の保護装置。(1) At least one element that is directly connected to an electric circuit that turns on and off an input DC current to obtain a desired output, and that is composed of an element forming a positive side arm and an element forming a negative side arm.
A first snubber circuit is connected in parallel to each of the switching elements of the set, and the first snubber circuit is connected in parallel with the element forming the positive side arm. The connection midpoint between the capacitor and the dionide of the first snubber circuit is connected to the negative power supply line, and the second snubber circuit, which is connected in parallel with the element forming the negative arm, has a diode and a capacitor connected in series in this order. A protection device for a switching element, characterized in that a connection intermediate point between the diode and the capacitor of the second snubber circuit is connected to a positive power supply line.
グ素子メ前記スナバ形保護回路により形成されたブリッ
ジ回路を有するインバータである実用新案登録請求の範
囲第１項に記載のスイッチング素子の保護装置。(2) Protection of the switching element according to claim 1, wherein the electric circuit is an inverter having a bridge circuit formed by a plurality of sets of self-extinguishing switching elements and the snubber protection circuit. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP895084U JPS60121335U (en) | 1984-01-25 | 1984-01-25 | Switching element protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP895084U JPS60121335U (en) | 1984-01-25 | 1984-01-25 | Switching element protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60121335U true JPS60121335U (en) | 1985-08-16 |
Family
ID=30488704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP895084U Pending JPS60121335U (en) | 1984-01-25 | 1984-01-25 | Switching element protection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60121335U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63181025U (en) * | 1987-05-13 | 1988-11-22 |
-
1984
- 1984-01-25 JP JP895084U patent/JPS60121335U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63181025U (en) * | 1987-05-13 | 1988-11-22 |
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