JPS57119669A - Controlling method for shifting digital type firing pulse phase - Google Patents

Controlling method for shifting digital type firing pulse phase

Info

Publication number
JPS57119669A
JPS57119669A JP56003172A JP317281A JPS57119669A JP S57119669 A JPS57119669 A JP S57119669A JP 56003172 A JP56003172 A JP 56003172A JP 317281 A JP317281 A JP 317281A JP S57119669 A JPS57119669 A JP S57119669A
Authority
JP
Japan
Prior art keywords
counter
cycle
pulse phase
firing pulses
controlling method
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
JP56003172A
Other languages
Japanese (ja)
Inventor
Tsutomu Omae
Toshihiko Matsuda
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 JP56003172A priority Critical patent/JPS57119669A/en
Publication of JPS57119669A publication Critical patent/JPS57119669A/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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
    • H02M1/084—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters using a control circuit common to several phases of a multi-phase system
    • H02M1/0845—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters using a control circuit common to several phases of a multi-phase system digitally controlled (or with digital control)

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Direct Current Motors (AREA)
  • Power Conversion In General (AREA)

Abstract

PURPOSE:To produce desired firing pulses by delaying one cycle only against a variation in power frequency by a method wherein a counter required for producing firing pulses is also used for power cycle counting and the following set value is corrected by the cycle. CONSTITUTION:A firing pulse phase shift control circuit used for the digital speed control for a DC motor is formed by including a microcomputer 1, registor 10, comparator 11, synchronous signal generating circuit 12, and counter 13. And the pulse train (b) of the synchronous signal generating circuit 12 is used as the interruption signal of the computer 1 and is also used as a reset signal of the counter 13 by forming a pulse train (b') delayed a fixed time through a monostable circuit 18 to guide one side of the output in the counter 13 to the computer 1. Therefore, a half cycle of the power source is counted to correct the set value to the comparator 11 by the counted value, so, firing pulses corresponding to a command can be produced even if the power frequency varies.
JP56003172A 1981-01-14 1981-01-14 Controlling method for shifting digital type firing pulse phase Pending JPS57119669A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56003172A JPS57119669A (en) 1981-01-14 1981-01-14 Controlling method for shifting digital type firing pulse phase

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56003172A JPS57119669A (en) 1981-01-14 1981-01-14 Controlling method for shifting digital type firing pulse phase

Publications (1)

Publication Number Publication Date
JPS57119669A true JPS57119669A (en) 1982-07-26

Family

ID=11549955

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56003172A Pending JPS57119669A (en) 1981-01-14 1981-01-14 Controlling method for shifting digital type firing pulse phase

Country Status (1)

Country Link
JP (1) JPS57119669A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6126464A (en) * 1984-07-12 1986-02-05 Fuji Electric Co Ltd Digital phase controller
JPS6139882A (en) * 1984-07-30 1986-02-26 Fuji Xerox Co Ltd Speed controller of copying machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6126464A (en) * 1984-07-12 1986-02-05 Fuji Electric Co Ltd Digital phase controller
JPS6139882A (en) * 1984-07-30 1986-02-26 Fuji Xerox Co Ltd Speed controller of copying machine

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