JPS57193965A - Digital electric power control device - Google Patents

Digital electric power control device

Info

Publication number
JPS57193965A
JPS57193965A JP7578781A JP7578781A JPS57193965A JP S57193965 A JPS57193965 A JP S57193965A JP 7578781 A JP7578781 A JP 7578781A JP 7578781 A JP7578781 A JP 7578781A JP S57193965 A JPS57193965 A JP S57193965A
Authority
JP
Japan
Prior art keywords
pulse
circuit
electric power
control device
phase
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
JP7578781A
Other languages
Japanese (ja)
Inventor
Yoshinori Ichikawa
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 JP7578781A priority Critical patent/JPS57193965A/en
Publication of JPS57193965A publication Critical patent/JPS57193965A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Power Conversion In General (AREA)

Abstract

PURPOSE:To prevent erroneous movement in rapid change of frequency right after throwing in the electric power and breakage due to inexact striking pulse by adding a synchronizm judgement circuit for checking whether or not the phase difference pulse in a phase detection circuit of a phase lock loop. CONSTITUTION:The digital electric power control device is a conventional digital control device to which a synchronism judgement circuit 7 and a synchronous display circuit 8 are added and it checks if the phase difference pulse of a phase detection device 2 of a phase lock loop RLL is synchrnous and uses a gate by which the clock pulse S3 does not enter the firing angle control for the time until synchronism is obtained. With this arrangement when the power is turned on and the frequency of the power source changes abruptly, mistaken operation of the device due to inexact striking pulse or breakage can be avoided, and the conditions are known from outside by displaying in a display circuit 8 the output of the judgement circuit 7.
JP7578781A 1981-05-21 1981-05-21 Digital electric power control device Pending JPS57193965A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7578781A JPS57193965A (en) 1981-05-21 1981-05-21 Digital electric power control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7578781A JPS57193965A (en) 1981-05-21 1981-05-21 Digital electric power control device

Publications (1)

Publication Number Publication Date
JPS57193965A true JPS57193965A (en) 1982-11-29

Family

ID=13586266

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7578781A Pending JPS57193965A (en) 1981-05-21 1981-05-21 Digital electric power control device

Country Status (1)

Country Link
JP (1) JPS57193965A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4671240A (en) * 1985-01-31 1987-06-09 Toyota Jidosha Kabushiki Kaisha Fuel injection system for an internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4671240A (en) * 1985-01-31 1987-06-09 Toyota Jidosha Kabushiki Kaisha Fuel injection system for an internal combustion engine

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