JPS56133974A - Ac controlling circuit - Google Patents

Ac controlling circuit

Info

Publication number
JPS56133974A
JPS56133974A JP3606780A JP3606780A JPS56133974A JP S56133974 A JPS56133974 A JP S56133974A JP 3606780 A JP3606780 A JP 3606780A JP 3606780 A JP3606780 A JP 3606780A JP S56133974 A JPS56133974 A JP S56133974A
Authority
JP
Japan
Prior art keywords
gate
time
motive
transistor
level
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
JP3606780A
Other languages
Japanese (ja)
Inventor
Kazuyoshi Yamaguchi
Koichi Nozaki
Terukazu Shirogata
Kenichi Tazawa
Masajiro Shimizu
Susumu Yamazaki
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 JP3606780A priority Critical patent/JPS56133974A/en
Publication of JPS56133974A publication Critical patent/JPS56133974A/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)
  • Thyristor Switches And Gates (AREA)

Abstract

PURPOSE:To automate control and save power, by detecting feedback signal level, supplying a detecting circuit, which compares the signal level with a set level, with power only during the motive time and preventing the input of phase detection signal during the time. CONSTITUTION:An oscillator 11 oscillates at a cycle and for a motive time which are set to given values and feeds to a bridge and a comparator 10, and at the same time, it is put into a phase detecting terminal of a current passage of an EX-NOR gate 4 through a current control resistor 13. When output of the EX-NOR gate 4 became low level, a transistor 15 becomes ON, and gate trigger current goes from VDD of a DC stabilizing power source 2 to VSS passing through a terminal T1 of an AC control element 17, a gate G and the transistor 15, and then, the AC control element 17 becomes conducted.
JP3606780A 1980-03-24 1980-03-24 Ac controlling circuit Pending JPS56133974A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3606780A JPS56133974A (en) 1980-03-24 1980-03-24 Ac controlling circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3606780A JPS56133974A (en) 1980-03-24 1980-03-24 Ac controlling circuit

Publications (1)

Publication Number Publication Date
JPS56133974A true JPS56133974A (en) 1981-10-20

Family

ID=12459371

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3606780A Pending JPS56133974A (en) 1980-03-24 1980-03-24 Ac controlling circuit

Country Status (1)

Country Link
JP (1) JPS56133974A (en)

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