JPS5718103A - Electric power source circuit for transistor amplifier - Google Patents

Electric power source circuit for transistor amplifier

Info

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
Application number
JP9464280A
Other languages
Japanese (ja)
Inventor
Hironobu Hatakeyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP9464280A priority Critical patent/JPS5718103A/en
Publication of JPS5718103A publication Critical patent/JPS5718103A/en
Pending legal-status Critical Current

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
JP9464280A 1980-07-08 1980-07-08 Electric power source circuit for transistor amplifier Pending JPS5718103A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS623112U (en) * 1985-06-20 1987-01-09

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS623112U (en) * 1985-06-20 1987-01-09

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