JPS57191715A - Controlling system for load current - Google Patents

Controlling system for load current

Info

Publication number
JPS57191715A
JPS57191715A JP7491281A JP7491281A JPS57191715A JP S57191715 A JPS57191715 A JP S57191715A JP 7491281 A JP7491281 A JP 7491281A JP 7491281 A JP7491281 A JP 7491281A JP S57191715 A JPS57191715 A JP S57191715A
Authority
JP
Japan
Prior art keywords
voltage
supplied
cpu43
load current
signal
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
JP7491281A
Other languages
Japanese (ja)
Inventor
Yasuaki Nagao
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.)
FUJI DENKI SOUGOU KENKYUSHO KK
Fuji Electric Co Ltd
Original Assignee
FUJI DENKI SOUGOU KENKYUSHO KK
Fuji Electric Corporate Research and Development 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 FUJI DENKI SOUGOU KENKYUSHO KK, Fuji Electric Corporate Research and Development Ltd filed Critical FUJI DENKI SOUGOU KENKYUSHO KK
Priority to JP7491281A priority Critical patent/JPS57191715A/en
Publication of JPS57191715A publication Critical patent/JPS57191715A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/66—Applications of electricity supply techniques
    • B03C3/68—Control systems therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Voltage And Current In General (AREA)

Abstract

PURPOSE:To obtain a sure and high-reliability controlling system for apparatus such as an electric dust collector utilizing corona discharge, by providing a means which controls the load current in accordance with the ripple content rate of the voltage generated between both ends of a smoothing capacitor. CONSTITUTION:A divided voltage Vd of a power source voltage Vp is supplied to an impedance converter 39, and an output voltage Vc is supplied to a sample holding circuit 41, and a sampling command signal Sc is supplied from a CPU43 to sample the voltage Vc. An output voltage Vs is supplied to the CPU43 through an A/D converter 47, and a digital signal Sd from the CPU43 passes through a D/A converter 49 and is inputted to a phase controller 51, and an ignition signal 53 corresponding to the phase generated to ignite a thyristor 31. Thus, the ignition angle of the thyristor 31 is changed in accordance with a signal Ss, which is sampled at every proper interval of time, to control optionally the load current according to the change of the power source voltage Vp.
JP7491281A 1981-05-20 1981-05-20 Controlling system for load current Pending JPS57191715A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7491281A JPS57191715A (en) 1981-05-20 1981-05-20 Controlling system for load current

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7491281A JPS57191715A (en) 1981-05-20 1981-05-20 Controlling system for load current

Publications (1)

Publication Number Publication Date
JPS57191715A true JPS57191715A (en) 1982-11-25

Family

ID=13561064

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7491281A Pending JPS57191715A (en) 1981-05-20 1981-05-20 Controlling system for load current

Country Status (1)

Country Link
JP (1) JPS57191715A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5513046A (en) * 1978-07-12 1980-01-29 Futaba Denki Kogyo Kk Method of extraction of protein in waste water from dissection of animal

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5513046A (en) * 1978-07-12 1980-01-29 Futaba Denki Kogyo Kk Method of extraction of protein in waste water from dissection of animal

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