JPS555534A - Power amplifier - Google Patents
Power amplifierInfo
- Publication number
- JPS555534A JPS555534A JP7829678A JP7829678A JPS555534A JP S555534 A JPS555534 A JP S555534A JP 7829678 A JP7829678 A JP 7829678A JP 7829678 A JP7829678 A JP 7829678A JP S555534 A JPS555534 A JP S555534A
- Authority
- JP
- Japan
- Prior art keywords
- power
- trq13
- trq11
- npn
- collectors
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
PURPOSE:To establish the call A power amplifier excellent in power efficiency, by constituting the output stage with the input power transistor and the cascode powere transistor to which audio signal is fed, and connecting the floating power supply to the connection points. CONSTITUTION:The audio input signal terminal 21 is connected to the preamplifier 23 of voltage amplification, and this output is connected to the base of the NPN and PNP type input power transistors TrQ11 and Q12 via the idling current setting constant current sources 24 and 25. Further, the NPN and PNP type cascode power TrQ13 and Q14 are connected to the collectors and the collectors are connected to the power supplies 26 and 27. Further, the voltage division circuits 32 and 33 are placed to the base of TrQ13 and Q14, and the connecting points are connected to the emitter in common connection with TrQ11 and Q12. Moreover, the floating power supplies 34 and 35 are connected to the terminal being the collector of TrQ11, Q12 and being the emitter of TrQ13 and Q14 via the diodes 36 and 37.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7829678A JPS555534A (en) | 1978-06-28 | 1978-06-28 | Power amplifier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7829678A JPS555534A (en) | 1978-06-28 | 1978-06-28 | Power amplifier |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS555534A true JPS555534A (en) | 1980-01-16 |
JPS6123687B2 JPS6123687B2 (en) | 1986-06-06 |
Family
ID=13657957
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7829678A Granted JPS555534A (en) | 1978-06-28 | 1978-06-28 | Power amplifier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS555534A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5711508A (en) * | 1980-06-26 | 1982-01-21 | Pioneer Electronic Corp | Power supply circuit for power amplifier |
WO2009086798A1 (en) * | 2007-12-22 | 2009-07-16 | Klaus Zametzky | Electronic amplifier |
JP2013500679A (en) * | 2009-07-30 | 2013-01-07 | ザイリンクス インコーポレイテッド | Improved resistance from electrostatic discharge |
-
1978
- 1978-06-28 JP JP7829678A patent/JPS555534A/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5711508A (en) * | 1980-06-26 | 1982-01-21 | Pioneer Electronic Corp | Power supply circuit for power amplifier |
WO2009086798A1 (en) * | 2007-12-22 | 2009-07-16 | Klaus Zametzky | Electronic amplifier |
US8269557B2 (en) | 2007-12-22 | 2012-09-18 | Klaus Zametzky | Electronic amplifier |
JP2013500679A (en) * | 2009-07-30 | 2013-01-07 | ザイリンクス インコーポレイテッド | Improved resistance from electrostatic discharge |
US8947839B2 (en) | 2009-07-30 | 2015-02-03 | Xilinx, Inc. | Enhanced immunity from electrostatic discharge |
Also Published As
Publication number | Publication date |
---|---|
JPS6123687B2 (en) | 1986-06-06 |
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