JPS5725010A - Load control device - Google Patents

Load control device

Info

Publication number
JPS5725010A
JPS5725010A JP10101380A JP10101380A JPS5725010A JP S5725010 A JPS5725010 A JP S5725010A JP 10101380 A JP10101380 A JP 10101380A JP 10101380 A JP10101380 A JP 10101380A JP S5725010 A JPS5725010 A JP S5725010A
Authority
JP
Japan
Prior art keywords
voltage
time
output
circuit
fed
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.)
Granted
Application number
JP10101380A
Other languages
Japanese (ja)
Other versions
JPH0315762B2 (en
Inventor
Kyoji Yamazaki
Fumio Kamiya
Hisao Kobayashi
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.)
Toshiba Electric Equipment Corp
Original Assignee
Toshiba Electric Equipment Corp
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 Toshiba Electric Equipment Corp filed Critical Toshiba Electric Equipment Corp
Priority to JP10101380A priority Critical patent/JPS5725010A/en
Publication of JPS5725010A publication Critical patent/JPS5725010A/en
Publication of JPH0315762B2 publication Critical patent/JPH0315762B2/ja
Granted 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)
  • Power Conversion In General (AREA)

Abstract

PURPOSE:To set a phase control output of AC voltage which is fed to a lod, at a constant value, by forming a phase control signal for controlling the phase of AC voltage, by the product of a signal for s showing a ratio to full conduction, and a semicycle time of AC voltage which is fed to a load. CONSTITUTION:A zero cross output of a zero crossing circuit 26 is inputted to a microcomputer 21, a latching circuit 23 and a counter 24. In case of a zero crossing output, the circuit 23 latches an output value of the counter 24, inputs it to the computer 21, and latches a count value corresponding to a semicycle time of AC voltage which is fed to a load 5b. The computer 21 takes the product of a count value corresponding to the semicycle time of AC voltage, which is an output value of the circuit 23, and a signal showing a ratio to full conduction, and obtains frequency of a clock circuit 25, corresponding to the time for generating a phase control outout from the zero crossing time of AC voltage. In this way, even if electric power supply frequency is varied between 50Hz and 60Hz, a phase control output of AC voltage which is fed to a lod is set at a constant value.
JP10101380A 1980-07-23 1980-07-23 Load control device Granted JPS5725010A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10101380A JPS5725010A (en) 1980-07-23 1980-07-23 Load control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10101380A JPS5725010A (en) 1980-07-23 1980-07-23 Load control device

Publications (2)

Publication Number Publication Date
JPS5725010A true JPS5725010A (en) 1982-02-09
JPH0315762B2 JPH0315762B2 (en) 1991-03-01

Family

ID=14289333

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10101380A Granted JPS5725010A (en) 1980-07-23 1980-07-23 Load control device

Country Status (1)

Country Link
JP (1) JPS5725010A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010020855A1 (en) * 2008-08-21 2010-02-25 Panasonic Electric Works Co., Ltd. Load controller

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5038428U (en) * 1973-08-07 1975-04-21
JPS50127152A (en) * 1974-02-19 1975-10-06

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5038428B2 (en) * 1972-04-25 1975-12-09

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5038428U (en) * 1973-08-07 1975-04-21
JPS50127152A (en) * 1974-02-19 1975-10-06

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010020855A1 (en) * 2008-08-21 2010-02-25 Panasonic Electric Works Co., Ltd. Load controller
JP2010075034A (en) * 2008-08-21 2010-04-02 Panasonic Electric Works Co Ltd Load controller, and load control system equipped with the same

Also Published As

Publication number Publication date
JPH0315762B2 (en) 1991-03-01

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