JPS5723310A - Electric power amplifier circuit of pulse width modulation system - Google Patents

Electric power amplifier circuit of pulse width modulation system

Info

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
Application number
JP9847780A
Other languages
Japanese (ja)
Inventor
Masaru Nishimura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP9847780A priority Critical patent/JPS5723310A/en
Publication of JPS5723310A publication Critical patent/JPS5723310A/en
Pending legal-status Critical Current

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  • 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
JP9847780A 1980-07-17 1980-07-17 Electric power amplifier circuit of pulse width modulation system Pending JPS5723310A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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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