JPS5738010A - Power amplifier - Google Patents
Power amplifierInfo
- Publication number
- JPS5738010A JPS5738010A JP11436380A JP11436380A JPS5738010A JP S5738010 A JPS5738010 A JP S5738010A JP 11436380 A JP11436380 A JP 11436380A JP 11436380 A JP11436380 A JP 11436380A JP S5738010 A JPS5738010 A JP S5738010A
- Authority
- JP
- Japan
- Prior art keywords
- amplifying circuit
- low
- pass filter
- amplifying
- filter
- 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
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 obtain an amplifying circuit high in efficiency and excellent in distortion characteristics, by separating an amplifying signal into low and high frequency component and amplifying the low frequency at a PWM amplifying circuit and the high frequency component at a conventional analog amplifying circuit respectively. CONSTITUTION:A signal inputted to an input terminal 10 is split at a low-pass filter 11 and a high-pass filter 12. An amplifying circuit 13 of PWM system is connected in cascade to the low-pass filter 11 and a conventional analog amplifying circuit 14 of class A or B is connected to the high-pass filter 12 and the signals are amplified. In this case, the split frequency of a filter splitting the band is at about 1kHz and the synthesized characteristics of the filter and the amplifying circuit are of flat frequency characteristics at the entire band. Since the low frequency component concentrated with energy among the amplification signal is amplified with highly efficient PWM system, the efficiency can be increased.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11436380A JPS5738010A (en) | 1980-08-19 | 1980-08-19 | Power amplifier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11436380A JPS5738010A (en) | 1980-08-19 | 1980-08-19 | Power amplifier |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5738010A true JPS5738010A (en) | 1982-03-02 |
Family
ID=14635840
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11436380A Pending JPS5738010A (en) | 1980-08-19 | 1980-08-19 | Power amplifier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5738010A (en) |
-
1980
- 1980-08-19 JP JP11436380A patent/JPS5738010A/en active Pending
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