JPS54146156A - Pulse width modulation amplifier - Google Patents

Pulse width modulation amplifier

Info

Publication number
JPS54146156A
JPS54146156A JP4554979A JP4554979A JPS54146156A JP S54146156 A JPS54146156 A JP S54146156A JP 4554979 A JP4554979 A JP 4554979A JP 4554979 A JP4554979 A JP 4554979A JP S54146156 A JPS54146156 A JP S54146156A
Authority
JP
Japan
Prior art keywords
signal
pulse width
switching
modulation amplifier
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.)
Granted
Application number
JP4554979A
Other languages
Japanese (ja)
Other versions
JPS5717364B2 (en
Inventor
Shigeru Tomidokoro
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP4554979A priority Critical patent/JPS54146156A/en
Publication of JPS54146156A publication Critical patent/JPS54146156A/en
Publication of JPS5717364B2 publication Critical patent/JPS5717364B2/ja
Granted legal-status Critical Current

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  • Amplifiers (AREA)

Abstract

PURPOSE: A pulse width modulation amplifier which causes no beat interference between the carrier pulse signal used in a pulse width modulator and the switching signal which leaks from the power source of a switching DC to DC converter.
CONSTITUTION: In a pulse width modulation amplifier, the power voltage of which is supplied from a DC to DC converter which has a switch operating DC to AC converter 14 and a switch output rectifier smoothing section 15, the switching signal of the power source and the carrier pulse signal of pulse width modulator 2 are phase-synchronized. Since the carrier pulse signal and the switching signal are produced from a common source and their phases are synchronized, there is no fear that beats will occur between the carrier pulse signal and the switching signal, even if the switching signal should leak from switching regulator 10 to modulation amplifier 1, and no beat interference will occur to the modulation output signal.
COPYRIGHT: (C)1979,JPO&Japio
JP4554979A 1979-04-14 1979-04-14 Pulse width modulation amplifier Granted JPS54146156A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4554979A JPS54146156A (en) 1979-04-14 1979-04-14 Pulse width modulation amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4554979A JPS54146156A (en) 1979-04-14 1979-04-14 Pulse width modulation amplifier

Publications (2)

Publication Number Publication Date
JPS54146156A true JPS54146156A (en) 1979-11-15
JPS5717364B2 JPS5717364B2 (en) 1982-04-10

Family

ID=12722437

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4554979A Granted JPS54146156A (en) 1979-04-14 1979-04-14 Pulse width modulation amplifier

Country Status (1)

Country Link
JP (1) JPS54146156A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04159803A (en) * 1990-10-23 1992-06-03 Matsushita Electric Ind Co Ltd Power amplifier
KR100418734B1 (en) * 2001-08-21 2004-02-18 주식회사 디메텍 Monitor apparatus and method of supersonic

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5045626A (en) * 1973-08-25 1975-04-23

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5045626A (en) * 1973-08-25 1975-04-23

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04159803A (en) * 1990-10-23 1992-06-03 Matsushita Electric Ind Co Ltd Power amplifier
KR100418734B1 (en) * 2001-08-21 2004-02-18 주식회사 디메텍 Monitor apparatus and method of supersonic

Also Published As

Publication number Publication date
JPS5717364B2 (en) 1982-04-10

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