JPS5721109A - Amplifier - Google Patents

Amplifier

Info

Publication number
JPS5721109A
JPS5721109A JP9705280A JP9705280A JPS5721109A JP S5721109 A JPS5721109 A JP S5721109A JP 9705280 A JP9705280 A JP 9705280A JP 9705280 A JP9705280 A JP 9705280A JP S5721109 A JPS5721109 A JP S5721109A
Authority
JP
Japan
Prior art keywords
input signal
voltage
trq
cut
positive input
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
JP9705280A
Other languages
Japanese (ja)
Inventor
Yoshihiko Yamazaki
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP9705280A priority Critical patent/JPS5721109A/en
Publication of JPS5721109A publication Critical patent/JPS5721109A/en
Pending legal-status Critical Current

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  • Amplifiers (AREA)

Abstract

PURPOSE: To eliminate switching distortion, by avoiding the cut-off of a pair of output transistors in push-pull connection, even at the input of any polarity.
CONSTITUTION: When a positive input signal is applied, a diode D1 is conductive and a diode D2 becomes nonconductive. If the positive input signal is small, although a transistor (TR) Q7 is conductive, but if the signal is increased, a current flowing to TRs Q1, Q2 is greater and a voltage between points A and B is increased by the voltage drop due to an emitter resistor REP. On the other hand, since the base voltage of the TRQ7 is kept constant by diodes D3, D4 and a resistor R1, a voltage between the base and emitter of the TRQ7 is decreased to cut off the TRQ7. But, since the positive input signal is inputted to the TRs Q1, Q3, no cut-off is caused. In case of the application of a negative input signal, the situation is inversed.
COPYRIGHT: (C)1982,JPO&Japio
JP9705280A 1980-07-15 1980-07-15 Amplifier Pending JPS5721109A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9705280A JPS5721109A (en) 1980-07-15 1980-07-15 Amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9705280A JPS5721109A (en) 1980-07-15 1980-07-15 Amplifier

Publications (1)

Publication Number Publication Date
JPS5721109A true JPS5721109A (en) 1982-02-03

Family

ID=14181884

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9705280A Pending JPS5721109A (en) 1980-07-15 1980-07-15 Amplifier

Country Status (1)

Country Link
JP (1) JPS5721109A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01139398U (en) * 1988-03-15 1989-09-22

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5582517A (en) * 1978-12-18 1980-06-21 Matsushita Electric Ind Co Ltd Power amplifier

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5582517A (en) * 1978-12-18 1980-06-21 Matsushita Electric Ind Co Ltd Power amplifier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01139398U (en) * 1988-03-15 1989-09-22

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