JPS57131107A - Power amplifier - Google Patents

Power amplifier

Info

Publication number
JPS57131107A
JPS57131107A JP1563481A JP1563481A JPS57131107A JP S57131107 A JPS57131107 A JP S57131107A JP 1563481 A JP1563481 A JP 1563481A JP 1563481 A JP1563481 A JP 1563481A JP S57131107 A JPS57131107 A JP S57131107A
Authority
JP
Japan
Prior art keywords
resistance
transistor
emitter
base
output transistor
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
JP1563481A
Other languages
Japanese (ja)
Inventor
Shigeru Nagasawa
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP1563481A priority Critical patent/JPS57131107A/en
Publication of JPS57131107A publication Critical patent/JPS57131107A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To easily obtain an integrated circuit without requriring a low resistance for stabilizing a bias current, by connecting a diode between the base and the emitter of an output transistor, and connecting the base and a driver transistor through a resistance.
CONSTITUTION: Between the base and the emitter of an output transistor Q2, a diode D in the polarity direction where it conducts when said transistor has conducted is connected in parallel, and also the base of the output transistor Q2 and the emitter of its driver transistor Q1 are connected through a resistance R'2. When the ratio of a junction area of the diode D to that of the output transistor Q2 is denoted as A, a current flowing in the resistance R'2 becomes 1/A of a current flowing in a resistance R2 in case when the resistance R2 has been inserted between the emitter of the output transistor Q2 and the output terminal, and its value is R'2=A.R2.
COPYRIGHT: (C)1982,JPO&Japio
JP1563481A 1981-02-06 1981-02-06 Power amplifier Pending JPS57131107A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1563481A JPS57131107A (en) 1981-02-06 1981-02-06 Power amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1563481A JPS57131107A (en) 1981-02-06 1981-02-06 Power amplifier

Publications (1)

Publication Number Publication Date
JPS57131107A true JPS57131107A (en) 1982-08-13

Family

ID=11894146

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1563481A Pending JPS57131107A (en) 1981-02-06 1981-02-06 Power amplifier

Country Status (1)

Country Link
JP (1) JPS57131107A (en)

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