JPS5768670A - Controller for pulse width modulation type inverter - Google Patents

Controller for pulse width modulation type inverter

Info

Publication number
JPS5768670A
JPS5768670A JP55144358A JP14435880A JPS5768670A JP S5768670 A JPS5768670 A JP S5768670A JP 55144358 A JP55144358 A JP 55144358A JP 14435880 A JP14435880 A JP 14435880A JP S5768670 A JPS5768670 A JP S5768670A
Authority
JP
Japan
Prior art keywords
wave
carrier wave
controller
pulse width
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.)
Pending
Application number
JP55144358A
Other languages
Japanese (ja)
Inventor
Kenji Kubo
Tsutomu Omae
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP55144358A priority Critical patent/JPS5768670A/en
Publication of JPS5768670A publication Critical patent/JPS5768670A/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
    • H02M7/505—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 thyratron or thyristor type requiring extinguishing means
    • H02M7/515—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H02M7/525—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output waveform or frequency
    • H02M7/527—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output waveform or frequency by pulse width modulation
    • H02M7/529—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output waveform or frequency by pulse width modulation using digital control

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

PURPOSE:To compare a modulated wave and a carrier wave by generating gate signals by all digitals by using a microprocessor and a programmable counter. CONSTITUTION:The counting value of the programmable counter 2, which counts clock pulses PCLK at every sampling period TS and generates the same counting value as a wave form of the carrier wave, is renewed by the value NR of difference between the instantaneous value of the carrier wave SC and the modulated wave SM at the time of each sampling by using the microprocessor 3. Accordingly, the magnitude of the modulated wave SM' closely resembling a stepped wave at a sampling period equivalently and the carrier wave SC can accurately be compared with the time accuracy of a clock pulse period.
JP55144358A 1980-10-17 1980-10-17 Controller for pulse width modulation type inverter Pending JPS5768670A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55144358A JPS5768670A (en) 1980-10-17 1980-10-17 Controller for pulse width modulation type inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55144358A JPS5768670A (en) 1980-10-17 1980-10-17 Controller for pulse width modulation type inverter

Publications (1)

Publication Number Publication Date
JPS5768670A true JPS5768670A (en) 1982-04-27

Family

ID=15360240

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55144358A Pending JPS5768670A (en) 1980-10-17 1980-10-17 Controller for pulse width modulation type inverter

Country Status (1)

Country Link
JP (1) JPS5768670A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006198020A (en) * 2005-01-18 2006-08-03 Matsushita Electric Works Ltd Storage shelf

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006198020A (en) * 2005-01-18 2006-08-03 Matsushita Electric Works Ltd Storage shelf

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