JPS5723310A - Electric power amplifier circuit of pulse width modulation system - Google Patents
Electric power amplifier circuit of pulse width modulation systemInfo
- Publication number
- JPS5723310A JPS5723310A JP9847780A JP9847780A JPS5723310A JP S5723310 A JPS5723310 A JP S5723310A JP 9847780 A JP9847780 A JP 9847780A JP 9847780 A JP9847780 A JP 9847780A JP S5723310 A JPS5723310 A JP S5723310A
- Authority
- JP
- Japan
- Prior art keywords
- pulse width
- electric power
- amplifying circuit
- circuit
- width modulation
- 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 make an amplifier small-sized and light, by insulating an electric power amplifying circuit of pulse width modulation system which generates voltage following an input signal efficiently, by an insulation type signal transmission means and a pulse transformer.
CONSTITUTION: An electric signal applied to an input terminal 30 is amplified by a voltage amplifying circuit 31 and an electric power amplifying circuit 34. Subsequently, the electric signal amplified by the voltage amplifying circuit 31 is applied to a pulse width modulating circuit 41 through a photocoupler 40. A pulse width modulation signal from the pulse width modulating circuit 41 is applied to switching transistors 46, 49 through pulse width amplifying circuits 44, 47, and a switching control is executed. Furthermore, this switching output is rectified by rectifying circuits 61∼64 through a pulse transformer circuit 57, and is supplied as a driving electric power source of the electric power amplifying circuit 34.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9847780A JPS5723310A (en) | 1980-07-17 | 1980-07-17 | Electric power amplifier circuit of pulse width modulation system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9847780A JPS5723310A (en) | 1980-07-17 | 1980-07-17 | Electric power amplifier circuit of pulse width modulation system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5723310A true JPS5723310A (en) | 1982-02-06 |
Family
ID=14220725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9847780A Pending JPS5723310A (en) | 1980-07-17 | 1980-07-17 | Electric power amplifier circuit of pulse width modulation system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5723310A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5200711A (en) * | 1990-10-26 | 1993-04-06 | AB Lab. Gruppen Andersson & Bavholm | Pulse-width modulated, linear audio-power amplifier |
US5396194A (en) * | 1993-11-19 | 1995-03-07 | Carver Corporation | Audio frequency power amplifiers |
US5543753A (en) * | 1994-06-22 | 1996-08-06 | Carver Corporation | Audio frequency power amplifiers with actively damped filter |
US5606289A (en) * | 1994-06-22 | 1997-02-25 | Carver Corporation | Audio frequency power amplifiers with actively damped filter |
-
1980
- 1980-07-17 JP JP9847780A patent/JPS5723310A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5200711A (en) * | 1990-10-26 | 1993-04-06 | AB Lab. Gruppen Andersson & Bavholm | Pulse-width modulated, linear audio-power amplifier |
US5396194A (en) * | 1993-11-19 | 1995-03-07 | Carver Corporation | Audio frequency power amplifiers |
US5543753A (en) * | 1994-06-22 | 1996-08-06 | Carver Corporation | Audio frequency power amplifiers with actively damped filter |
US5606289A (en) * | 1994-06-22 | 1997-02-25 | Carver Corporation | Audio frequency power amplifiers with actively damped filter |
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