JPS6423772A - Sine wave inverter - Google Patents

Sine wave inverter

Info

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
Application number
JP62177946A
Other languages
Japanese (ja)
Inventor
Toshiaki Sakamoto
Shigeki Takasaki
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.)
Nishimu Electronics Industries Co Inc
Original Assignee
Nishimu Electronics Industries Co Inc
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 Nishimu Electronics Industries Co Inc filed Critical Nishimu Electronics Industries Co Inc
Priority to JP62177946A priority Critical patent/JPS6423772A/en
Publication of JPS6423772A publication Critical patent/JPS6423772A/en
Pending legal-status Critical Current

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  • 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.
JP62177946A 1987-07-16 1987-07-16 Sine wave inverter Pending JPS6423772A (en)

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)

* Cited by examiner, † Cited by third party
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
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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