JPS576565A - Ignition circuit utilizing time duration type control gate - Google Patents

Ignition circuit utilizing time duration type control gate

Info

Publication number
JPS576565A
JPS576565A JP8069180A JP8069180A JPS576565A JP S576565 A JPS576565 A JP S576565A JP 8069180 A JP8069180 A JP 8069180A JP 8069180 A JP8069180 A JP 8069180A JP S576565 A JPS576565 A JP S576565A
Authority
JP
Japan
Prior art keywords
voltage
capacitor
electric power
input signal
ramp
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
JP8069180A
Other languages
Japanese (ja)
Inventor
Yoshinori Sato
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.)
NIPPON INTERNATIONAL SEIRIYUUK
International Rectifier Corp Japan Ltd
Original Assignee
NIPPON INTERNATIONAL SEIRIYUUK
International Rectifier Corp Japan 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 NIPPON INTERNATIONAL SEIRIYUUK, International Rectifier Corp Japan Ltd filed Critical NIPPON INTERNATIONAL SEIRIYUUK
Priority to JP8069180A priority Critical patent/JPS576565A/en
Publication of JPS576565A publication Critical patent/JPS576565A/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)
  • Rectifiers (AREA)
  • Control Of Electrical Variables (AREA)
  • Power Conversion In General (AREA)

Abstract

PURPOSE:To control the electric power to be supplied to load and to restrict genneration of noise by a method wherein the ratio of time length of ON-time of a thyristor in a given time length is made to change in proportion to a controlling input signal. CONSTITUTION:A stable DC voltage is supplied from a DC electric power source circuit 1 to charge a capacitor C4 through a transistor Q1 in a ramp generater 2, a PUT conducts when the charging voltage thereof exceeds the prescribed voltage to reduce the terminal voltage of the capacitor C4 resulting in nonconducting of the PUT, charging of the capacitor C4 is started again, and the ramp wave is generated by this way. The ramp voltage is compared in a comparator 3 with the controlling input signal voltage, and the duration of an input pulse of the comparator 3 is controlled in accordance with magnitude of the controlling input signal voltage. A transistor Q2 is made to conduct by this output pulse, moreover an ON-signal is sent to a zero-cross type ignition circuit 5, and the main thyristor conducts to supply the prescribed electric power to the load.
JP8069180A 1980-06-14 1980-06-14 Ignition circuit utilizing time duration type control gate Pending JPS576565A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8069180A JPS576565A (en) 1980-06-14 1980-06-14 Ignition circuit utilizing time duration type control gate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8069180A JPS576565A (en) 1980-06-14 1980-06-14 Ignition circuit utilizing time duration type control gate

Publications (1)

Publication Number Publication Date
JPS576565A true JPS576565A (en) 1982-01-13

Family

ID=13725350

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8069180A Pending JPS576565A (en) 1980-06-14 1980-06-14 Ignition circuit utilizing time duration type control gate

Country Status (1)

Country Link
JP (1) JPS576565A (en)

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