JPS5721109A - Amplifier - Google Patents
AmplifierInfo
- 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
Links
Landscapes
- 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
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01139398U (en) * | 1988-03-15 | 1989-09-22 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5582517A (en) * | 1978-12-18 | 1980-06-21 | Matsushita Electric Ind Co Ltd | Power amplifier |
-
1980
- 1980-07-15 JP JP9705280A patent/JPS5721109A/en active Pending
Patent Citations (1)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01139398U (en) * | 1988-03-15 | 1989-09-22 |
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