JPS57192112A - Power amplifying circuit - Google Patents
Power amplifying circuitInfo
- Publication number
- JPS57192112A JPS57192112A JP7606681A JP7606681A JPS57192112A JP S57192112 A JPS57192112 A JP S57192112A JP 7606681 A JP7606681 A JP 7606681A JP 7606681 A JP7606681 A JP 7606681A JP S57192112 A JPS57192112 A JP S57192112A
- Authority
- JP
- Japan
- Prior art keywords
- output
- load
- impedance
- point
- 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
Landscapes
- Amplifiers (AREA)
Abstract
PURPOSE: To make constant current driving even with a load having the frequency characteristics, by providing a power amplifier set so that an output impedance with opposite characteristics to those of the load is given.
CONSTITUTION: A grounded resistor 7 is connected to an input point of a power amplifier 11 and an output resistor 10 is connected to an output point. Further, feedback impedance elements 8 and 9 to determine the value of an output impedance and the frequency characteristics are respectively connected between the output point of the amplifier 11 and a feedback point and between ground and the feedback point, and the output terminal is connected to a load 5. With the constitution like this, an output current IL of an amplifier 1 can be made constant by selecting the impedance value of the elements 8 and 9 so that the impedance characteristics of the load 5 is opposite to the output characteristics of the amplifier 11, even if the load 5 has the frequency characteristics.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7606681A JPS57192112A (en) | 1981-05-20 | 1981-05-20 | Power amplifying circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7606681A JPS57192112A (en) | 1981-05-20 | 1981-05-20 | Power amplifying circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57192112A true JPS57192112A (en) | 1982-11-26 |
Family
ID=13594398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7606681A Pending JPS57192112A (en) | 1981-05-20 | 1981-05-20 | Power amplifying circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57192112A (en) |
-
1981
- 1981-05-20 JP JP7606681A patent/JPS57192112A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS57173220A (en) | Comparator circuit | |
| JPS55136708A (en) | Voltage current conversion circuit | |
| JPS5718109A (en) | Sound volume controlling circuit | |
| JPS5676611A (en) | Low noise amplifying circuit | |
| JPS5575316A (en) | Control circuit for frequency characteristic | |
| JPS5592006A (en) | Amplifier | |
| JPS57192112A (en) | Power amplifying circuit | |
| JPS55117971A (en) | Level indication circuit | |
| DE3168657D1 (en) | Filter circuit suitable for being fabricated into integrated circuit | |
| JPS57121308A (en) | Power amplifier | |
| JPS5717205A (en) | Operational amplifier | |
| JPS5728407A (en) | Amplifying circuit | |
| JPS5717207A (en) | Amplifying circuit | |
| JPS5620315A (en) | Low-frequency amplifying circuit | |
| JPS5753129A (en) | Active filter | |
| JPS56168427A (en) | Analog-to-digital converter | |
| JPS5769910A (en) | Amplifier | |
| JPS5753114A (en) | Differential amplifier | |
| JPS5574224A (en) | Signal amplifying circuit | |
| JPS579108A (en) | High frequency transistor power amplifier | |
| JPS5735403A (en) | Amplifier | |
| JPS6416006A (en) | Dc amplifier circuit | |
| JPS54103659A (en) | Asymmetrical gain unit | |
| JPS57162843A (en) | Muting circuit | |
| JPS57162812A (en) | Noise reduction device |