JPS61140612U - - Google Patents
Info
- Publication number
- JPS61140612U JPS61140612U JP2400685U JP2400685U JPS61140612U JP S61140612 U JPS61140612 U JP S61140612U JP 2400685 U JP2400685 U JP 2400685U JP 2400685 U JP2400685 U JP 2400685U JP S61140612 U JPS61140612 U JP S61140612U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- capacitor
- autotransformer
- emitter
- terminal
- 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
- 239000003990 capacitor Substances 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Amplifiers (AREA)
Description
第１図は本考案の一実施例を示す回路図、第２
図は従来のハイブリツド帰還増幅回路の一例を示
す回路図、第３図は２つのトランジスタを並列接
続した従来の低歪帰還増幅回路の一例を示す回路
図である。
図において、１：チヨークコイル、２：チヨー
クコイル、３：第１のトランジスタ、４：第２の
トランジスタ、５：エミツタ抵抗、６：抵抗、７
：帰還回路、８，９：バランス抵抗、１０：単巻
変成器、１１〜１４：バイアス抵抗、１６〜２１
：コンデンサ。
Figure 1 is a circuit diagram showing one embodiment of the present invention;
The figure is a circuit diagram showing an example of a conventional hybrid feedback amplifier circuit, and FIG. 3 is a circuit diagram showing an example of a conventional low distortion feedback amplifier circuit in which two transistors are connected in parallel. In the figure, 1: Chiyoke coil, 2: Chiyoke coil, 3: First transistor, 4: Second transistor, 5: Emitter resistor, 6: Resistor, 7
: Feedback circuit, 8, 9: Balance resistor, 10: Auto transformer, 11-14: Bias resistor, 16-21
: Capacitor.
Claims (1)
ジスタのエミツタをチヨークコイルによつて接続
し、第２のトランジスタのコレクタをチヨークコ
イルを通して直流電源に接続し、第１のトランジ
スタのエミツタをエミツタ抵抗を通して接地し、
前記第１のトランジスタおよび第２のトランジス
タのベースにはそれぞれバイアス抵抗を介して独
立に直流バイアス電圧を供給して、 入力信号を前記第１および第２のトランジスタ
のベースにそれぞれ供給するためのコンデンサと
、 前記第１および第２のトランジスタのコレクタ
をそれぞれ出力端子に接続するコンデンサと、 巻線の一端をそれぞれバランス抵抗を介して入
力端子および出力端子に接続し、中間端子を接地
した単巻変成器と、 該単巻変成器の他端を前記第１のトランジスタ
および第２のトランジスタのエミツタにそれぞれ
接続するコンデンサと、 前記単巻変成器のいずれか一方の端子と地気間
に接続された帰還回路とを備えたことを特徴とす
る省電流低歪帰還増幅回路。[Claims for Utility Model Registration] The collector of the first transistor and the emitter of the second transistor are connected through a choke coil, the collector of the second transistor is connected to a DC power source through the choke coil, and the emitter of the first transistor is grounded through the emitter resistor,
a capacitor for supplying DC bias voltage to the bases of the first transistor and the second transistor independently through bias resistors, and supplying input signals to the bases of the first and second transistors, respectively; a capacitor that connects the collectors of the first and second transistors to the output terminals, and an autotransformer with one end of the winding connected to the input terminal and the output terminal via a balance resistor, and an intermediate terminal grounded. a capacitor connecting the other end of the autotransformer to the emitters of the first transistor and the second transistor, respectively; a capacitor connected between either terminal of the autotransformer and the ground; A current-saving, low-distortion feedback amplifier circuit characterized by comprising a feedback circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2400685U JPS61140612U (en) | 1985-02-21 | 1985-02-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2400685U JPS61140612U (en) | 1985-02-21 | 1985-02-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61140612U true JPS61140612U (en) | 1986-08-30 |
Family
ID=30517760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2400685U Pending JPS61140612U (en) | 1985-02-21 | 1985-02-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61140612U (en) |
-
1985
- 1985-02-21 JP JP2400685U patent/JPS61140612U/ja active Pending
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