JPS54146156A - Pulse width modulation amplifier - Google Patents
Pulse width modulation amplifierInfo
- 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
Links
Landscapes
- 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
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5045626A (en) * | 1973-08-25 | 1975-04-23 |
-
1979
- 1979-04-14 JP JP4554979A patent/JPS54146156A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5045626A (en) * | 1973-08-25 | 1975-04-23 |
Cited By (2)
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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