JPS579108A - High frequency transistor power amplifier - Google Patents
High frequency transistor power amplifierInfo
- Publication number
- JPS579108A JPS579108A JP8312080A JP8312080A JPS579108A JP S579108 A JPS579108 A JP S579108A JP 8312080 A JP8312080 A JP 8312080A JP 8312080 A JP8312080 A JP 8312080A JP S579108 A JPS579108 A JP S579108A
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- filter
- frequency
- amplifier
- power 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.)
- Granted
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
- H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
- H03F1/12—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of attenuating means
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
PURPOSE:To make the stability against load variance excellent, by providing mutually a series/parallel circuit for a filter having a cut-off frequency lower than the operating frequency of a high frequency transistor power amplifier and a filter terminated with a resistor. CONSTITUTION:One end of a resistor 3 is grounded and another end is connected to the input terminal of a low-pass filter 4. The output terminal of a high-pass filter 2 and that of the filter 4 are connected to the input terminal of a power amplifier 6 consisting of high frequency transistors. The filter 2 is constituted that it is at a high impedance at lower frequencies than the operating frequency of the amplifier 6 by viewing an input power terminal 1 from a terminal 5 of the amplifier 6. Further, the cut-off frequency of the filter 4 is lower than the operating frequency of the amplifier 6. Thus, at lower frequencies than the operating frequency, the resistor 3 can be existed at all time by viewing the terminal 1 from the terminal 5, even if the load condition of the prestage is fluctuated from the terminal 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8312080A JPS579108A (en) | 1980-06-19 | 1980-06-19 | High frequency transistor power amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8312080A JPS579108A (en) | 1980-06-19 | 1980-06-19 | High frequency transistor power amplifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS579108A true JPS579108A (en) | 1982-01-18 |
| JPH0147926B2 JPH0147926B2 (en) | 1989-10-17 |
Family
ID=13793337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8312080A Granted JPS579108A (en) | 1980-06-19 | 1980-06-19 | High frequency transistor power amplifier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS579108A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58162112A (en) * | 1982-03-23 | 1983-09-26 | Nec Corp | Monolithic integrated circuit amplifier |
| CN104247258A (en) * | 2013-02-26 | 2014-12-24 | 松下电器产业株式会社 | Amplifier |
-
1980
- 1980-06-19 JP JP8312080A patent/JPS579108A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58162112A (en) * | 1982-03-23 | 1983-09-26 | Nec Corp | Monolithic integrated circuit amplifier |
| JPH0457124B2 (en) * | 1982-03-23 | 1992-09-10 | Nippon Electric Co | |
| CN104247258A (en) * | 2013-02-26 | 2014-12-24 | 松下电器产业株式会社 | Amplifier |
| CN104247258B (en) * | 2013-02-26 | 2017-06-23 | 松下电器产业株式会社 | Amplifier |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0147926B2 (en) | 1989-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS56137598A (en) | Sample hold circuit | |
| JPS5676611A (en) | Low noise amplifying circuit | |
| JPS579108A (en) | High frequency transistor power amplifier | |
| JPS56115012A (en) | Feedback circuit for integrated circuit | |
| GB1297058A (en) | ||
| JPS5673911A (en) | Microwave amplifier | |
| DE3168657D1 (en) | Filter circuit suitable for being fabricated into integrated circuit | |
| JPS54122071A (en) | Feedback amplifier | |
| SU675586A1 (en) | Gyrator | |
| JPS55147008A (en) | Negative feedback circuit for amplifier | |
| JPS577615A (en) | Elastic surface wave filter circuit | |
| JPS56138328A (en) | Frequency multiplying circuit | |
| JPS6412706A (en) | Operational amplifier circuit | |
| JPS5617503A (en) | Narrow-band amplifying circuit using surface wave filter | |
| ES342519A1 (en) | Low frequency filters | |
| JPS579109A (en) | Stabilizing circuit for high frequency power amplifier | |
| GB1061133A (en) | Improvements in or relating to frequency dependent electrical networks | |
| JPS54126445A (en) | Notch filter | |
| JPS54118149A (en) | Comparator circuit | |
| JPS5555610A (en) | Adjusting circuit for frequency characteristic | |
| Mataya et al. | A monolithic integrated variable attenuator | |
| JPS56103511A (en) | Monolithic semiconductor integrated circuit | |
| JPS56165411A (en) | Equalizer amplifier | |
| JPS57162843A (en) | Muting circuit | |
| JPS56162505A (en) | Frequency multiplying circuit |