JPS555065A - Pulse width modulation inverter modulating system - Google Patents
Pulse width modulation inverter modulating systemInfo
- Publication number
- JPS555065A JPS555065A JP7748978A JP7748978A JPS555065A JP S555065 A JPS555065 A JP S555065A JP 7748978 A JP7748978 A JP 7748978A JP 7748978 A JP7748978 A JP 7748978A JP S555065 A JPS555065 A JP S555065A
- Authority
- JP
- Japan
- Prior art keywords
- modulated
- wave
- generates
- absolute value
- shaped
- 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
- Inverter Devices (AREA)
Abstract
PURPOSE: To eliminate superimposition of DC current component with an inverter output by comparing the absolute value of carrier with the modulated wave of half cycle to thereby obtain one cycle waveform of the modulated signal.
CONSTITUTION: An oscillator 15 generates a triangular wave, and a rectangular pulse train generator 101 generates upon reception of the triangular wave a rectangular pulse train. An absolute value circuit 16 takes the absolute value of the triangular wave upon removal of the DC component from the wave. A positive side modulated wave forming circuit 17 generates the modulated wave forming U-shaped positive modulated signal. A negative side modulated wave forming circuit 19 generates the modulated wave for forming the U-shaped load. Comparators 20, 21 respectively form positive and negative side modulated signals. The U-shaped modulated signal is obtained by logic calculation of the modulated signals.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7748978A JPS555065A (en) | 1978-06-28 | 1978-06-28 | Pulse width modulation inverter modulating system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7748978A JPS555065A (en) | 1978-06-28 | 1978-06-28 | Pulse width modulation inverter modulating system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS555065A true JPS555065A (en) | 1980-01-14 |
Family
ID=13635392
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7748978A Pending JPS555065A (en) | 1978-06-28 | 1978-06-28 | Pulse width modulation inverter modulating system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS555065A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61164470A (en) * | 1985-01-07 | 1986-07-25 | アライド・コーポレーシヨン | Digital driving system for pulse width modulation power control |
-
1978
- 1978-06-28 JP JP7748978A patent/JPS555065A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61164470A (en) * | 1985-01-07 | 1986-07-25 | アライド・コーポレーシヨン | Digital driving system for pulse width modulation power control |
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