JPS59132272U - subscriber circuit - Google Patents
subscriber circuitInfo
- Publication number
- JPS59132272U JPS59132272U JP2527883U JP2527883U JPS59132272U JP S59132272 U JPS59132272 U JP S59132272U JP 2527883 U JP2527883 U JP 2527883U JP 2527883 U JP2527883 U JP 2527883U JP S59132272 U JPS59132272 U JP S59132272U
- Authority
- JP
- Japan
- Prior art keywords
- subscriber circuit
- power supply
- supply transistor
- operational amplifier
- base
- 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
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図は従来の加入者回路の一例を示す回路図および第
２図は本考案の加入者回路の一実施例を示す回路図であ
る。
図において、１．１０・・・給電用トランジスタ、２．
１２・・・エミッタ抵抗、３．１３・・・負帰還抵抗、
４．１４・・・ベース抵抗、４”、１４’・・・可変ベ
ース抵抗、５，１５・・・演算増幅器、６． ７． １
６゜１７・・・抵抗、８・・・地気端子、９，１９・・
・入力端子、１８・・・電源端子。FIG. 1 is a circuit diagram showing an example of a conventional subscriber circuit, and FIG. 2 is a circuit diagram showing an embodiment of the subscriber circuit of the present invention. In the figure, 1.10... power supply transistor, 2.
12... Emitter resistance, 3.13... Negative feedback resistance,
4.14...Base resistance, 4'', 14'...Variable base resistance, 5,15...Operation amplifier, 6.7.1
6゜17...Resistance, 8...Earth terminal, 9,19...
・Input terminal, 18...Power terminal.
Claims (1)
演算増幅器と、該演算増幅器の出力端子と前記給電トラ
ンジスタのベース間に挿入するベース抵抗器を含んでな
る加入者回路において、前記ベース抵抗器の抵抗値を可
変とする手段を備えることを特徴とする加入者回路。A subscriber circuit comprising a power supply transistor, an operational amplifier that drives the power supply transistor, and a base resistor inserted between the output terminal of the operational amplifier and the base of the power supply transistor, wherein the resistance of the base resistor is A subscriber circuit characterized by comprising means for making a value variable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2527883U JPS59132272U (en) | 1983-02-23 | 1983-02-23 | subscriber circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2527883U JPS59132272U (en) | 1983-02-23 | 1983-02-23 | subscriber circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59132272U true JPS59132272U (en) | 1984-09-05 |
Family
ID=30156267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2527883U Pending JPS59132272U (en) | 1983-02-23 | 1983-02-23 | subscriber circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59132272U (en) |
-
1983
- 1983-02-23 JP JP2527883U patent/JPS59132272U/en active Pending
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