JPH01169810U - - Google Patents
Info
- Publication number
- JPH01169810U JPH01169810U JP6605088U JP6605088U JPH01169810U JP H01169810 U JPH01169810 U JP H01169810U JP 6605088 U JP6605088 U JP 6605088U JP 6605088 U JP6605088 U JP 6605088U JP H01169810 U JPH01169810 U JP H01169810U
- Authority
- JP
- Japan
- Prior art keywords
- output stage
- circuit
- idling current
- current control
- voltage
- 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
- 230000001747 exhibiting effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案の一実施例を示す回路図、第２
図は本考案の説明に供する定電流ダイオードの特
性図、第３図は従来技術の説明に供する回路図で
ある。
２……演算増幅器、５……電流制御部、６……
ＶＢＥマルチプライヤ、７……反転増幅器、Ｒ１
〜Ｒ１６……抵抗、Ｑ１〜Ｑ１０……トランジス
タ、Ｄ１……定電流ダイオード。
Figure 1 is a circuit diagram showing one embodiment of the present invention;
The figure is a characteristic diagram of a constant current diode used to explain the present invention, and FIG. 3 is a circuit diagram used to explain the prior art. 2... operational amplifier, 5... current control section, 6...
VBE multiplier, 7...Inverting amplifier, R1
~R16...Resistor, Q1-Q10...Transistor, D1... Constant current diode.
Claims (1)
するアイドリング電流制御回路であり、 印加される可変電圧の影響を受けて僅かに正特
性で変化するも略一定のバイアス電圧を出力段の
トランジスタのベースに印加するバイアス電圧設
定手段と、 前記回路内に配置されることにより、電源電圧
変動に対して負の変化特性を示す可変電流を流す
電流制御素子と、 前記可変電流の変化に対し前記可変電圧を正特
性で変化すべく制御する電圧制御手段とからなる
ことを特徴とするアイドリング電流制御回路。[Claims for Utility Model Registration] This is an idling current control circuit that controls the idling current of the output stage of a power amplifier, and the circuit controls the idling current of the output stage of a power amplifier. a bias voltage setting means applied to the base of the transistor in the output stage; a current control element disposed in the circuit to flow a variable current exhibiting negative change characteristics with respect to power supply voltage fluctuations; An idling current control circuit comprising voltage control means for controlling the variable voltage so as to change with positive characteristics in response to changes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6605088U JPH01169810U (en) | 1988-05-19 | 1988-05-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6605088U JPH01169810U (en) | 1988-05-19 | 1988-05-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01169810U true JPH01169810U (en) | 1989-11-30 |
Family
ID=31291468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6605088U Pending JPH01169810U (en) | 1988-05-19 | 1988-05-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01169810U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006085566A1 (en) * | 2005-02-10 | 2006-08-17 | Advantest Corporation | Power amplifying circuit and test apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52113144A (en) * | 1976-03-19 | 1977-09-22 | Hitachi Ltd | Output amplifier |
| JPS5318367A (en) * | 1976-08-03 | 1978-02-20 | Hitachi Ltd | Bias circuit |
-
1988
- 1988-05-19 JP JP6605088U patent/JPH01169810U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52113144A (en) * | 1976-03-19 | 1977-09-22 | Hitachi Ltd | Output amplifier |
| JPS5318367A (en) * | 1976-08-03 | 1978-02-20 | Hitachi Ltd | Bias circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006085566A1 (en) * | 2005-02-10 | 2006-08-17 | Advantest Corporation | Power amplifying circuit and test apparatus |
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