JPS63125409U - - Google Patents
Info
- Publication number
- JPS63125409U JPS63125409U JP1476987U JP1476987U JPS63125409U JP S63125409 U JPS63125409 U JP S63125409U JP 1476987 U JP1476987 U JP 1476987U JP 1476987 U JP1476987 U JP 1476987U JP S63125409 U JPS63125409 U JP S63125409U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- base
- emitter
- current
- emitter resistor
- 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
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Amplifiers (AREA)
Description
第１図はこの考案の電流リミツタ回路の一実施
例の回路図、第２図は同上電流リミツタの動作原
理を示す回路図、第３図は従来の電流リミツタの
回路図、第４図は第３図の電流リミツタの動作原
理を示す回路図である。
１……電圧増幅段、Ｑ１〜Ｑ６……トランジス
タ、４ａ，４ｂ……ツエナーダイオード、Ｒｅ１
，Ｒｅ２……エミツタ抵抗。
Figure 1 is a circuit diagram of one embodiment of the current limiter circuit of this invention, Figure 2 is a circuit diagram showing the operating principle of the same current limiter, Figure 3 is a circuit diagram of a conventional current limiter, and Figure 4 is a circuit diagram of a conventional current limiter. FIG. 4 is a circuit diagram showing the operating principle of the current limiter of FIG. 3; 1... Voltage amplification stage, Q1 to Q6... Transistor, 4a, 4b... Zener diode, Re 1
, Re 2 ... Emitter resistance.
Claims (1)
路を構成する第１のトランジスタと、ツエナーダ
イオードと、ベース・エミツタを順方向に直列接
続して上記エミツタ抵抗に並列に接続されるとと
もにコレクタを上記第１のトランジスタのベース
に接続し、かつ上記エミツタ抵抗の両端の電位が
ベース・エミツタ電位とツエナー電圧との和以上
になると、上記第１のベース電流を分離させて電
流リミツタとして作動する第２のトランジスタと
よりなる電流リミツタ。 A first transistor whose emitter resistor is connected to the emitter resistor to form a current amplification circuit, a Zener diode, and a base and emitter connected in series in the forward direction and connected in parallel to the emitter resistor, and whose collector is connected to the first transistor. a second transistor that is connected to the base of the transistor and operates as a current limiter by separating the first base current when the potential across the emitter resistor exceeds the sum of the base-emitter potential and the Zener voltage; More current limiters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1476987U JPS63125409U (en) | 1987-02-03 | 1987-02-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1476987U JPS63125409U (en) | 1987-02-03 | 1987-02-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63125409U true JPS63125409U (en) | 1988-08-16 |
Family
ID=30805064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1476987U Pending JPS63125409U (en) | 1987-02-03 | 1987-02-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63125409U (en) |
-
1987
- 1987-02-03 JP JP1476987U patent/JPS63125409U/ja active Pending
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