JPS5718103A - Electric power source circuit for transistor amplifier - Google Patents
Electric power source circuit for transistor amplifierInfo
- Publication number
- JPS5718103A JPS5718103A JP9464280A JP9464280A JPS5718103A JP S5718103 A JPS5718103 A JP S5718103A JP 9464280 A JP9464280 A JP 9464280A JP 9464280 A JP9464280 A JP 9464280A JP S5718103 A JPS5718103 A JP S5718103A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- power source
- electric power
- constant
- fet3
- 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
- Dc-Dc Converters (AREA)
- Amplifiers (AREA)
Abstract
PURPOSE: To adjust bias voltage easily and to protect a transistor from surge voltage, by providing a DC-DC converter for generating negative bias voltage from an output of a constant voltage power supplying output for generating positive bias voltage.
CONSTITUTION: A constant voltage power supplying circuit 13 changes positive voltage VB which is applied to a terminal 14, to constant voltage, generates VDS, and provides bias to the drain of an FET3. On the other hand, VDS is converted to constant negative voltage by a DC-DC converter 12, and is applied to the gate of the FET3. According to such a constitution, an electric power source of an amplifier consisting of the FET3 is changed to constant voltage by only a single electric power source for generating positive voltage VB, it is unnecessary to set it exactly, and also surge voltage, etc. are absorbed exactly by a constant voltage circuit.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9464280A JPS5718103A (en) | 1980-07-08 | 1980-07-08 | Electric power source circuit for transistor amplifier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9464280A JPS5718103A (en) | 1980-07-08 | 1980-07-08 | Electric power source circuit for transistor amplifier |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5718103A true JPS5718103A (en) | 1982-01-29 |
Family
ID=14115912
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9464280A Pending JPS5718103A (en) | 1980-07-08 | 1980-07-08 | Electric power source circuit for transistor amplifier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5718103A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS623112U (en) * | 1985-06-20 | 1987-01-09 |
-
1980
- 1980-07-08 JP JP9464280A patent/JPS5718103A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS623112U (en) * | 1985-06-20 | 1987-01-09 |
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