JPS6423772A - Sine wave inverter - Google Patents
Sine wave inverterInfo
- Publication number
- JPS6423772A JPS6423772A JP62177946A JP17794687A JPS6423772A JP S6423772 A JPS6423772 A JP S6423772A JP 62177946 A JP62177946 A JP 62177946A JP 17794687 A JP17794687 A JP 17794687A JP S6423772 A JPS6423772 A JP S6423772A
- Authority
- JP
- Japan
- Prior art keywords
- sine wave
- transistor
- inverter
- fed
- pulse width
- 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 improve efficiency and miniaturize a device and reduce a cost, by providing a DC input power line with a chopper circuit, and by feeding DC voltage, changing in the shape of a sine wave, to an inverter. CONSTITUTION:A sine wave inverter is composed of a DC power source 25, a chopper circuit 1, a pair of transistors 2-3, and a power transformer 4, and current is fed to a load 14. Besides, a control circuit is composed of an error amplifier 8, a differential amplifier 9, a comparator 10, and the like. Then, an output waveform due to a transistor 15 and smoothing circuits 16-18 connected in series to an intermediate point between the DC power source 25 and a transformer primary-winding 5, and a full-wave rectification waveform from a reference sine wave oscillator 11 are compared with each other, and a pulse width modulation waveform having the pulse width of the function of a difference between both the compared waveforms is generated. This output is fed to the transistor 15, and is turned ON/OFF. As a result, voltage applied to the primary winding 5 of the power transformer 4 and the transistor 15 is prevented from being excessive.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62177946A JPS6423772A (en) | 1987-07-16 | 1987-07-16 | Sine wave inverter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62177946A JPS6423772A (en) | 1987-07-16 | 1987-07-16 | Sine wave inverter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6423772A true JPS6423772A (en) | 1989-01-26 |
Family
ID=16039842
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62177946A Pending JPS6423772A (en) | 1987-07-16 | 1987-07-16 | Sine wave inverter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6423772A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5681079A (en) * | 1979-11-30 | 1981-07-02 | Aichi Electric Mfg Co Ltd | Ac stabilized power source device |
-
1987
- 1987-07-16 JP JP62177946A patent/JPS6423772A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5681079A (en) * | 1979-11-30 | 1981-07-02 | Aichi Electric Mfg Co Ltd | Ac stabilized power source device |
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