JPS5455349A - Transistor amplifier - Google Patents
Transistor amplifierInfo
- Publication number
- JPS5455349A JPS5455349A JP12325077A JP12325077A JPS5455349A JP S5455349 A JPS5455349 A JP S5455349A JP 12325077 A JP12325077 A JP 12325077A JP 12325077 A JP12325077 A JP 12325077A JP S5455349 A JPS5455349 A JP S5455349A
- Authority
- JP
- Japan
- Prior art keywords
- unbalance
- chips
- unstableness
- oscillation
- currents
- 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
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/68—Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microwave Amplifiers (AREA)
- Amplifiers (AREA)
Abstract
PURPOSE:To prevent completely the unstableness of oscillation, etc., when operating several transistor chips in parallel, by enabling an unbalance absorption circuit to absorb unbalance components of voltages and currents among respective chips over the wide range. CONSTITUTION:In the Tr amplifier constituted by sealing transistor chips 1 and 1' operating in parallel and input-side and output-side impedance matcher circuits 4 and 4', and 5 and 5' in one airtight case at the input side and output side of those chips 1 and 1', transmission lines 8 and 8', and 10 and 10' which have appropriate characteristic impedance values and 1/10 wavelength or more in the inuse frequency band are matcher circuits 4 and 4', and 5 and 5' at the input side and output side. In addition, unbalance absorbing resistors 9 and 11 are connected between transmission lines 8 and 8', and 10 and 10'. Then, unbalance components of voltages and currents between Trs 4 and 4', and 5 and 5' are absorbed over the wide band, thereby preventing completely the unstableness of oscillation, etc.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12325077A JPS5455349A (en) | 1977-10-13 | 1977-10-13 | Transistor amplifier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12325077A JPS5455349A (en) | 1977-10-13 | 1977-10-13 | Transistor amplifier |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5455349A true JPS5455349A (en) | 1979-05-02 |
Family
ID=14855912
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12325077A Pending JPS5455349A (en) | 1977-10-13 | 1977-10-13 | Transistor amplifier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5455349A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6386904A (en) * | 1986-09-30 | 1988-04-18 | Toshiba Corp | Internal matching type high output field effect transistor |
JPS63197346A (en) * | 1987-02-12 | 1988-08-16 | Hitachi Ltd | High-frequency semiconductor device |
JPS63253708A (en) * | 1987-04-10 | 1988-10-20 | Mitsubishi Electric Corp | Microwave power synthesizing fet amplifier |
-
1977
- 1977-10-13 JP JP12325077A patent/JPS5455349A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6386904A (en) * | 1986-09-30 | 1988-04-18 | Toshiba Corp | Internal matching type high output field effect transistor |
JPS63197346A (en) * | 1987-02-12 | 1988-08-16 | Hitachi Ltd | High-frequency semiconductor device |
JPS63253708A (en) * | 1987-04-10 | 1988-10-20 | Mitsubishi Electric Corp | Microwave power synthesizing fet amplifier |
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