JPS5798015A - Constant voltage power supply device - Google Patents

Constant voltage power supply device

Info

Publication number
JPS5798015A
JPS5798015A JP17567280A JP17567280A JPS5798015A JP S5798015 A JPS5798015 A JP S5798015A JP 17567280 A JP17567280 A JP 17567280A JP 17567280 A JP17567280 A JP 17567280A JP S5798015 A JPS5798015 A JP S5798015A
Authority
JP
Japan
Prior art keywords
load
voltage
zero cross
conversion
power supply
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
JP17567280A
Other languages
Japanese (ja)
Inventor
Masao Hosaka
Yoshitaka Ogino
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 JP17567280A priority Critical patent/JPS5798015A/en
Publication of JPS5798015A publication Critical patent/JPS5798015A/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 Voltage And Current In General (AREA)

Abstract

PURPOSE:To stabilize an AC load to be constant voltage in a simple circuit by carrying out AC phase control after A/D conversion is applied to the level of an approximate value of a load, the result of which is fetched to a microprocessor as a digital input where processing by operations are performed. CONSTITUTION:The applied voltage to a load 3 is detected by a transformer 14, converted into an effective value by an approximate effective value conversion circuit 40, converted into digital value by an A/D converter 41 and fed back to a microprocessor (MPU). Here a sampling cycle on applying A/D conversion by the converter 41 becomes a delay in the feed back which generates an error: therefore, the zero cross of the AC voltage of the power supply is detected by a zero cross generator 42 and, at the moment of generation of a zero cross pulse, the internal counter of the MPU is started to decide the phase angle of ignition for phase control. Thereby the load voltage can be controlled at constant for the control of switch-on position of a high speed switching element 2.
JP17567280A 1980-12-12 1980-12-12 Constant voltage power supply device Pending JPS5798015A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17567280A JPS5798015A (en) 1980-12-12 1980-12-12 Constant voltage power supply device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17567280A JPS5798015A (en) 1980-12-12 1980-12-12 Constant voltage power supply device

Publications (1)

Publication Number Publication Date
JPS5798015A true JPS5798015A (en) 1982-06-18

Family

ID=16000210

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17567280A Pending JPS5798015A (en) 1980-12-12 1980-12-12 Constant voltage power supply device

Country Status (1)

Country Link
JP (1) JPS5798015A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8106563B2 (en) 2006-06-08 2012-01-31 Exro Technologies Inc. Polyphasic multi-coil electric device
US8212445B2 (en) 2004-08-12 2012-07-03 Exro Technologies Inc. Polyphasic multi-coil electric device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51102546A (en) * 1975-03-07 1976-09-10 Taiyo Tomuko Kk SAIRISUTANODEIJITARUSEIGYOKAIRO
JPS51114061A (en) * 1975-03-31 1976-10-07 Oosakafu Digital phase circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51102546A (en) * 1975-03-07 1976-09-10 Taiyo Tomuko Kk SAIRISUTANODEIJITARUSEIGYOKAIRO
JPS51114061A (en) * 1975-03-31 1976-10-07 Oosakafu Digital phase circuit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8212445B2 (en) 2004-08-12 2012-07-03 Exro Technologies Inc. Polyphasic multi-coil electric device
US9685827B2 (en) 2004-08-12 2017-06-20 Exro Technologies Inc. Polyphasic multi-coil electric device
US8106563B2 (en) 2006-06-08 2012-01-31 Exro Technologies Inc. Polyphasic multi-coil electric device
US9584056B2 (en) 2006-06-08 2017-02-28 Exro Technologies Inc. Polyphasic multi-coil generator

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