JPS5771274A - Controlling device for inverter - Google Patents

Controlling device for inverter

Info

Publication number
JPS5771274A
JPS5771274A JP55146451A JP14645180A JPS5771274A JP S5771274 A JPS5771274 A JP S5771274A JP 55146451 A JP55146451 A JP 55146451A JP 14645180 A JP14645180 A JP 14645180A JP S5771274 A JPS5771274 A JP S5771274A
Authority
JP
Japan
Prior art keywords
wave
inverter
sine wave
controlling signal
point
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
JP55146451A
Other languages
Japanese (ja)
Inventor
Shigeo Fukui
Kazuo Nagatake
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 JP55146451A priority Critical patent/JPS5771274A/en
Publication of JPS5771274A publication Critical patent/JPS5771274A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/539—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency
    • H02M7/5395—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency by pulse-width modulation

Abstract

PURPOSE:To reduce the error for the true wave of the subject inverter by a method wherein, when the controlling signal of the inverter, with which a sine wave approximate AC output will be obtained, is memorized in a memory element, the controlling signal is determined from the point of intersection of a sine wave and the rise time of a saw-toothed wave. CONSTITUTION:The inverter, with which the sine wave approximate AC output will be obtained by turning a switching element to ON or OFF position, is controlled by the circuit consisting of a memory storage 10 wherein the component equivalent to 180 deg./n only in electrical angle of the controlling signal is memorized, an up-down counter 13 which reads out the contents of the above memory storage and a combined circuit 18 to be composed of the signal sent from a decoder 14. At this time, the wave form of the controlling signal to be memorized in the memory storage 10 is at the time difference calculated from the point of interconnection of a sine wave S7 and a saw-toothed wave S8, which is positioned at the point of rise by synchronizing the sine wave and the saw-toothed wave at the same point of rise. Accordingly, the error for the true wave can be reduced by half and the wave from having no distortion can also be obtained by smoothening connections.
JP55146451A 1980-10-20 1980-10-20 Controlling device for inverter Pending JPS5771274A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55146451A JPS5771274A (en) 1980-10-20 1980-10-20 Controlling device for inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55146451A JPS5771274A (en) 1980-10-20 1980-10-20 Controlling device for inverter

Publications (1)

Publication Number Publication Date
JPS5771274A true JPS5771274A (en) 1982-05-04

Family

ID=15407930

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55146451A Pending JPS5771274A (en) 1980-10-20 1980-10-20 Controlling device for inverter

Country Status (1)

Country Link
JP (1) JPS5771274A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5914370A (en) * 1982-07-14 1984-01-25 Toshiba Corp Controller for inverter
JPH0560193U (en) * 1982-05-07 1993-08-06 ザ・バブコック・アンド・ウイルコックス・カンパニー Three-Phase PWM Waveform Digital Generator for Variable Speed Control of Induction Motor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0560193U (en) * 1982-05-07 1993-08-06 ザ・バブコック・アンド・ウイルコックス・カンパニー Three-Phase PWM Waveform Digital Generator for Variable Speed Control of Induction Motor
JPS5914370A (en) * 1982-07-14 1984-01-25 Toshiba Corp Controller for inverter
JPH0437673B2 (en) * 1982-07-14 1992-06-22 Tokyo Shibaura Electric Co

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