JPS56164414A - Constant current device - Google Patents

Constant current device

Info

Publication number
JPS56164414A
JPS56164414A JP6764580A JP6764580A JPS56164414A JP S56164414 A JPS56164414 A JP S56164414A JP 6764580 A JP6764580 A JP 6764580A JP 6764580 A JP6764580 A JP 6764580A JP S56164414 A JPS56164414 A JP S56164414A
Authority
JP
Japan
Prior art keywords
voltage
regulation
detected
coil
smaller value
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
JP6764580A
Other languages
Japanese (ja)
Other versions
JPS6357805B2 (en
Inventor
Teruo Kataoka
Shinji Hatachi
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP6764580A priority Critical patent/JPS56164414A/en
Publication of JPS56164414A publication Critical patent/JPS56164414A/en
Publication of JPS6357805B2 publication Critical patent/JPS6357805B2/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
    • G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
    • G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
    • G05F1/577—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices for plural loads

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Continuous-Control Power Sources That Use Transistors (AREA)
  • Details Of Television Scanning (AREA)

Abstract

PURPOSE:To obtain an output with high stability, by making the regulation of a coil current less than the regulation of a reference voltage, even if a detected voltage is decreased and a detected loss is made small. CONSTITUTION:An output of a reference voltage generator 9 is inputted to an error amplifier 8 for coil voltage control and also inputted commonly to an error amplifier 16 which supplies the power supply to anoter load. Since a voltage divided at resistors 14, 15 is given to a feedback terminal of the amplifier 16, a voltage having the same regulation as a reference voltage VR for a voltage +B1. Taking a detected voltage of a detector 4 to a load coil 3 as Ve and a load current as IF, IF=Ve/Rf is given by selecting the resistance value Rf of the detector 4 as sufficiently smaller value. Thus, taking the voltage Ve as smaller value and reducing the detected loss as smaller value, then the regulation of the current IF can be taken as the regulation of the voltage +B1, i.e. voltage VR or less.
JP6764580A 1980-05-20 1980-05-20 Constant current device Granted JPS56164414A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6764580A JPS56164414A (en) 1980-05-20 1980-05-20 Constant current device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6764580A JPS56164414A (en) 1980-05-20 1980-05-20 Constant current device

Publications (2)

Publication Number Publication Date
JPS56164414A true JPS56164414A (en) 1981-12-17
JPS6357805B2 JPS6357805B2 (en) 1988-11-14

Family

ID=13350950

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6764580A Granted JPS56164414A (en) 1980-05-20 1980-05-20 Constant current device

Country Status (1)

Country Link
JP (1) JPS56164414A (en)

Also Published As

Publication number Publication date
JPS6357805B2 (en) 1988-11-14

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