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JPS57103522A - Power supply device - Google Patents

Power supply device

Info

Publication number
JPS57103522A
JPS57103522A JP17982780A JP17982780A JPS57103522A JP S57103522 A JPS57103522 A JP S57103522A JP 17982780 A JP17982780 A JP 17982780A JP 17982780 A JP17982780 A JP 17982780A JP S57103522 A JPS57103522 A JP S57103522A
Authority
JP
Japan
Prior art keywords
load
current
power supply
artificial
transistor
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
JP17982780A
Other languages
Japanese (ja)
Inventor
Nobuhisa Yokoyama
Chiharu Saito
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP17982780A priority Critical patent/JPS57103522A/en
Publication of JPS57103522A publication Critical patent/JPS57103522A/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
    • G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
    • G05F1/618—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series and in parallel with the load as final control devices

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)

Abstract

PURPOSE:To avoid a sudden change for the output current at a stabilized power supply part, by providing an artificial load to a power supply device having a load changing suddenly and at the same time giving a slow rise to the input current to be supplied to the artificial load up to the value of the input current to be applied to the load changing suddenly. CONSTITUTION:A transistor of an artificial load 5 conducts slowly by an artificial load drive signal DG supplied from a load control part 3 and based on a load sudden change previous announcement signal DS. Thus a current I2 flows to the transistor. A load 2 is driven when the current I2 is set at a prescribed level, at the same time a transistor of an artificial load 5 is turned off. Thus a current I1 is applied to the load 2. As a result, an output current I0 is generated at a stabilized power supply circuit 1 to prevent a sudden change of the output current at the part 1.
JP17982780A 1980-12-19 1980-12-19 Power supply device Pending JPS57103522A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17982780A JPS57103522A (en) 1980-12-19 1980-12-19 Power supply device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17982780A JPS57103522A (en) 1980-12-19 1980-12-19 Power supply device

Publications (1)

Publication Number Publication Date
JPS57103522A true JPS57103522A (en) 1982-06-28

Family

ID=16072580

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17982780A Pending JPS57103522A (en) 1980-12-19 1980-12-19 Power supply device

Country Status (1)

Country Link
JP (1) JPS57103522A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5394077A (en) * 1993-04-30 1995-02-28 Kabushiki Kaisha Toshiba Internal power supply circuit for use in a semiconductor device
US5402059A (en) * 1994-02-08 1995-03-28 Ford Motor Company Switching power supply operating at little or no load
JP2006293802A (en) * 2005-04-13 2006-10-26 Renesas Technology Corp Semiconductor integrated circuit device
JP2006318192A (en) * 2005-05-12 2006-11-24 Sharp Corp Electronic equipment
JP2009217844A (en) * 2009-06-17 2009-09-24 Oki Semiconductor Co Ltd Step-down power supply device
USRE47017E1 (en) 2009-06-26 2018-08-28 Toshiba Memory Corporation Semiconductor device for short-circuiting output terminals of two or more voltage generator circuits at read time and control method for the same

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5394077A (en) * 1993-04-30 1995-02-28 Kabushiki Kaisha Toshiba Internal power supply circuit for use in a semiconductor device
US5402059A (en) * 1994-02-08 1995-03-28 Ford Motor Company Switching power supply operating at little or no load
JP2006293802A (en) * 2005-04-13 2006-10-26 Renesas Technology Corp Semiconductor integrated circuit device
JP4711287B2 (en) * 2005-04-13 2011-06-29 ルネサスエレクトロニクス株式会社 Semiconductor integrated circuit device
JP2006318192A (en) * 2005-05-12 2006-11-24 Sharp Corp Electronic equipment
JP2009217844A (en) * 2009-06-17 2009-09-24 Oki Semiconductor Co Ltd Step-down power supply device
USRE47017E1 (en) 2009-06-26 2018-08-28 Toshiba Memory Corporation Semiconductor device for short-circuiting output terminals of two or more voltage generator circuits at read time and control method for the same
USRE49175E1 (en) 2009-06-26 2022-08-16 Kioxia Corporation Semiconductor device including three voltage generator circuits and two transistors configured to short-circuit respective different combinations of the voltage generator circuits

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