JPS5757320A - Output voltage slow start circuit of stabilized dc power supply - Google Patents

Output voltage slow start circuit of stabilized dc power supply

Info

Publication number
JPS5757320A
JPS5757320A JP13200480A JP13200480A JPS5757320A JP S5757320 A JPS5757320 A JP S5757320A JP 13200480 A JP13200480 A JP 13200480A JP 13200480 A JP13200480 A JP 13200480A JP S5757320 A JPS5757320 A JP S5757320A
Authority
JP
Japan
Prior art keywords
amplifier
stabilized
power supply
slow start
series circuit
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
JP13200480A
Other languages
Japanese (ja)
Other versions
JPH0145645B2 (en
Inventor
Katsuhiko Inaba
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP13200480A priority Critical patent/JPS5757320A/en
Publication of JPS5757320A publication Critical patent/JPS5757320A/en
Publication of JPH0145645B2 publication Critical patent/JPH0145645B2/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
    • G05F1/468—Regulating voltage or current wherein the variable actually regulated by the final control device is dc characterised by reference voltage circuitry, e.g. soft start, remote shutdown

Landscapes

  • Engineering & Computer Science (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)
  • Continuous-Control Power Sources That Use Transistors (AREA)

Abstract

PURPOSE:To relieve the using conditions of an error amplifier, by connecting a series circuit consisting of a diode and a charging/discharging capacitor to one side of the error amplifier. CONSTITUTION:The output VOS of a stabilized DC power supply device is divided by a voltage divider consisting of resistances 22 and 23 and then connected to the other side of an error amplifier 29 having the reference voltage Vvef at one side. At the same time, a series circuit consisting of a diode 27, a resistance 14 and a charging/discharging capacitor 28 is connected to a terminal of the amplifier 29. Furthermore a series circuit consisting of a switch 30 plus resistances 26 and 25 is connected between the amplifier 29 and a bias power source VCC, and a resistance 25 is connected in parallel to the capacitor 28. Then a slow start is obtained when the switch 30 is turned off. With such constitution of circuit, the range of in-phase input voltage or the level of output impedance of the amplifier 29 is ignored to relieve the using conditins of the amplifier 29.
JP13200480A 1980-09-22 1980-09-22 Output voltage slow start circuit of stabilized dc power supply Granted JPS5757320A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13200480A JPS5757320A (en) 1980-09-22 1980-09-22 Output voltage slow start circuit of stabilized dc power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13200480A JPS5757320A (en) 1980-09-22 1980-09-22 Output voltage slow start circuit of stabilized dc power supply

Publications (2)

Publication Number Publication Date
JPS5757320A true JPS5757320A (en) 1982-04-06
JPH0145645B2 JPH0145645B2 (en) 1989-10-04

Family

ID=15071295

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13200480A Granted JPS5757320A (en) 1980-09-22 1980-09-22 Output voltage slow start circuit of stabilized dc power supply

Country Status (1)

Country Link
JP (1) JPS5757320A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007206997A (en) * 2006-02-02 2007-08-16 Analog Chip Design Kk Power supply circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007206997A (en) * 2006-02-02 2007-08-16 Analog Chip Design Kk Power supply circuit
JP4734518B2 (en) * 2006-02-02 2011-07-27 シャープ株式会社 Power circuit

Also Published As

Publication number Publication date
JPH0145645B2 (en) 1989-10-04

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