JPS57208711A - Power amplifier having one set inverted output - Google Patents
Power amplifier having one set inverted outputInfo
- Publication number
- JPS57208711A JPS57208711A JP56093845A JP9384581A JPS57208711A JP S57208711 A JPS57208711 A JP S57208711A JP 56093845 A JP56093845 A JP 56093845A JP 9384581 A JP9384581 A JP 9384581A JP S57208711 A JPS57208711 A JP S57208711A
- Authority
- JP
- Japan
- Prior art keywords
- amplifying section
- stage
- output
- opposite
- signal
- 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
Abstract
PURPOSE: To amplify a large power with a simple constitution, by using a differential output of a one set differential amplifier for voltage amplification as a driving source for two sets of power amplifiers.
CONSTITUTION: A signal from a signal source 20 is amplified with a 1st stage voltage amplifying section 9 of a push-pull differential system. This signal is given to a voltage amplifying section 10 of the 2nd stage. The phase of the collector between a PNP transistor (TR)13 and an NPN TR14 is opposite to that between a PNP TR15 and an NPN TR16. An output stage amplifying section 11 and an output stage power amplifying section 12 connected to each collector are opposite with each other and operated at the same time. Thus, signals outputted at output terminals 17 and 18 are appeared in the opposite phase. When a load is connected between the output terminals 17 and 18, the BTL connection is obtained and a large power can be obtained.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56093845A JPS57208711A (en) | 1981-06-19 | 1981-06-19 | Power amplifier having one set inverted output |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56093845A JPS57208711A (en) | 1981-06-19 | 1981-06-19 | Power amplifier having one set inverted output |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57208711A true JPS57208711A (en) | 1982-12-21 |
Family
ID=14093734
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56093845A Pending JPS57208711A (en) | 1981-06-19 | 1981-06-19 | Power amplifier having one set inverted output |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57208711A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0913930A2 (en) * | 1997-10-31 | 1999-05-06 | Sanyo Electric Co., Ltd. | BTL amplifying circuit |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5468142A (en) * | 1977-11-11 | 1979-06-01 | Hitachi Ltd | Btl amplifying circuit |
JPS5469367A (en) * | 1977-11-14 | 1979-06-04 | Nec Corp | Balanced output differencial amplifier |
-
1981
- 1981-06-19 JP JP56093845A patent/JPS57208711A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5468142A (en) * | 1977-11-11 | 1979-06-01 | Hitachi Ltd | Btl amplifying circuit |
JPS5469367A (en) * | 1977-11-14 | 1979-06-04 | Nec Corp | Balanced output differencial amplifier |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0913930A2 (en) * | 1997-10-31 | 1999-05-06 | Sanyo Electric Co., Ltd. | BTL amplifying circuit |
EP0913930A3 (en) * | 1997-10-31 | 2002-03-20 | Sanyo Electric Co., Ltd. | BTL amplifying circuit |
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