JPS57152016A - Stabilizer for load power - Google Patents

Stabilizer for load power

Info

Publication number
JPS57152016A
JPS57152016A JP56036591A JP3659181A JPS57152016A JP S57152016 A JPS57152016 A JP S57152016A JP 56036591 A JP56036591 A JP 56036591A JP 3659181 A JP3659181 A JP 3659181A JP S57152016 A JPS57152016 A JP S57152016A
Authority
JP
Japan
Prior art keywords
microprocessor
peak value
phase angle
lamp
theta
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
JP56036591A
Other languages
Japanese (ja)
Inventor
Masao Hosaka
Yoshitaka Ogino
Satoshi Mori
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP56036591A priority Critical patent/JPS57152016A/en
Publication of JPS57152016A publication Critical patent/JPS57152016A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
    • G05F1/40—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices
    • G05F1/44—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only
    • G05F1/45—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only being controlled rectifiers in series with the load
    • G05F1/455—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only being controlled rectifiers in series with the load with phase control

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Electrical Variables (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Control Of Voltage And Current In General (AREA)

Abstract

PURPOSE:To simplify the device, to reduce the cost and to increase the accuracy, by detecting a peak value of a power supply voltage or current, obtaining a phase angle of an AC switching element corresponding to the peak value stored in advance and controlling the load power. CONSTITUTION:In a copy machine, a microprocessor 20 controls a fixing heater 34 and an exposure halogen lamp 38 and a microprocessor 21 controls a copy process sequence. The microprocessor 20 detects a peak value VD of a pulsating wave V/A from a full wave rectifier 42 inputted to a channel A0 of an A/D converter 45 by using a zero cross pulse Zp inputted to an interrupting terminal INT. An ROM in the microprocessor 20 stores the phase angle of a switching element 36 required to obtain a constant current in a lamp 38 as a fixed data in accordance with a peak voltage VD with experiments and calculations in advance. When the microprocessor 20 detects the peak value PD, a phase angle theta corresponding to it is read out from the ROM, the element 36 is conductive with the angle theta and the lamp 38 illuminates. A solid-state relay 33 is controlled in the phase angle of pi-theta to energized the heater 34.
JP56036591A 1981-03-16 1981-03-16 Stabilizer for load power Pending JPS57152016A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56036591A JPS57152016A (en) 1981-03-16 1981-03-16 Stabilizer for load power

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56036591A JPS57152016A (en) 1981-03-16 1981-03-16 Stabilizer for load power

Publications (1)

Publication Number Publication Date
JPS57152016A true JPS57152016A (en) 1982-09-20

Family

ID=12474016

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56036591A Pending JPS57152016A (en) 1981-03-16 1981-03-16 Stabilizer for load power

Country Status (1)

Country Link
JP (1) JPS57152016A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02245807A (en) * 1989-03-17 1990-10-01 Aichi Electric Co Ltd Flicker suppressing device
JP2007110839A (en) * 2005-10-13 2007-04-26 Fuji Xerox Co Ltd Power controller and image forming device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02245807A (en) * 1989-03-17 1990-10-01 Aichi Electric Co Ltd Flicker suppressing device
JP2007110839A (en) * 2005-10-13 2007-04-26 Fuji Xerox Co Ltd Power controller and image forming device

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