JPS5738008A - Output amplifier - Google Patents
Output amplifierInfo
- Publication number
- JPS5738008A JPS5738008A JP11300880A JP11300880A JPS5738008A JP S5738008 A JPS5738008 A JP S5738008A JP 11300880 A JP11300880 A JP 11300880A JP 11300880 A JP11300880 A JP 11300880A JP S5738008 A JPS5738008 A JP S5738008A
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- resistor
- gain
- output
- error amplifier
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
PURPOSE:To improve the DC offset and distortion at the same time, by improving the distortion through taking the output of an error amplifier amplifying distorted content as a feedback signal of an output amplifier and increasing the DC gain through grounding the DC input of an error amplifier. CONSTITUTION:The output of an amplifier 2 is split at resistors 9, 10 and applied to a + side input of an error amplifier 8. The - side input of the error amplifier 8 is grounded via a resistor 13, and since a resistor 14 is smaller than the resistor 13, an input signal applied to a terminal 1 is given to the - side input. On the other hand, a capacitor 11 is for DC blocking and the DC offset component is improved by increasing the DC gain of the amplifier 8. The AC gain of the amplifier 8 is decided with the resistors 12 and 14.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11300880A JPS5738008A (en) | 1980-08-19 | 1980-08-19 | Output amplifier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11300880A JPS5738008A (en) | 1980-08-19 | 1980-08-19 | Output amplifier |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5738008A true JPS5738008A (en) | 1982-03-02 |
Family
ID=14601118
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11300880A Pending JPS5738008A (en) | 1980-08-19 | 1980-08-19 | Output amplifier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5738008A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5919244A (en) * | 1982-07-24 | 1984-01-31 | Pioneer Electronic Corp | Focus servo device of information reader |
JPS5948112U (en) * | 1982-09-21 | 1984-03-30 | 日本コロムビア株式会社 | amplifier |
EP0398065A2 (en) * | 1989-05-19 | 1990-11-22 | STMicroelectronics S.r.l. | Monolithically integratable differential operational amplifier |
EP0427135A2 (en) * | 1989-11-08 | 1991-05-15 | STMicroelectronics S.r.l. | Circuit for sensing output distortion, in particular of final stages of audio devices |
DE4141016A1 (en) * | 1991-06-17 | 1992-12-24 | Pioneer Electronic Corp | REINFORCEMENT DEVICE |
JP2014161214A (en) * | 2013-02-13 | 2014-09-04 | Valeo Systemes De Controle Moteur | Method for reducing common mode current |
JP2020043466A (en) * | 2018-09-11 | 2020-03-19 | アキュフェーズ株式会社 | Amplifier circuit |
-
1980
- 1980-08-19 JP JP11300880A patent/JPS5738008A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5919244A (en) * | 1982-07-24 | 1984-01-31 | Pioneer Electronic Corp | Focus servo device of information reader |
JPS5948112U (en) * | 1982-09-21 | 1984-03-30 | 日本コロムビア株式会社 | amplifier |
EP0398065A2 (en) * | 1989-05-19 | 1990-11-22 | STMicroelectronics S.r.l. | Monolithically integratable differential operational amplifier |
EP0427135A2 (en) * | 1989-11-08 | 1991-05-15 | STMicroelectronics S.r.l. | Circuit for sensing output distortion, in particular of final stages of audio devices |
DE4141016A1 (en) * | 1991-06-17 | 1992-12-24 | Pioneer Electronic Corp | REINFORCEMENT DEVICE |
JP2014161214A (en) * | 2013-02-13 | 2014-09-04 | Valeo Systemes De Controle Moteur | Method for reducing common mode current |
JP2020043466A (en) * | 2018-09-11 | 2020-03-19 | アキュフェーズ株式会社 | Amplifier circuit |
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