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JPS55136869A - Current controlling circuit for dummy load - Google Patents

Current controlling circuit for dummy load

Info

Publication number
JPS55136869A
JPS55136869A JP4193679A JP4193679A JPS55136869A JP S55136869 A JPS55136869 A JP S55136869A JP 4193679 A JP4193679 A JP 4193679A JP 4193679 A JP4193679 A JP 4193679A JP S55136869 A JPS55136869 A JP S55136869A
Authority
JP
Japan
Prior art keywords
load
dummy load
dummy
current
exceeds
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
JP4193679A
Other languages
Japanese (ja)
Inventor
Takeo Shigemori
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 Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP4193679A priority Critical patent/JPS55136869A/en
Publication of JPS55136869A publication Critical patent/JPS55136869A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of DC power input into DC power output
    • H02M3/22—Conversion of DC power input into DC power output with intermediate conversion into AC
    • H02M3/24—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters
    • H02M3/28—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

PURPOSE:To eliminate useless power consumption and increase the efficiency by a method wherein current flowing in a dummy load of a pulse-width control type switching regulator is subject to cut off when the load current exceeds a specified level. CONSTITUTION:In place of a fixed dummy load R2 inserted in the output end of a pulse-width control type switching regulator, a semiconductor load 10 as variable dummy load is connected. The difference between the second reference voltage Er2 and an output voltage of a voltage amplifier circuit 9, which is incoming from a current detecting resistor R1 and is to be supplied to an over-current detector 12, is amplified via an error voltage amplifier 11. The amplified error voltage controls the variable dummy semiconductor load 10. Thus the dummy load consumes the power until the load current exceeds a specified level. Once it exceeds the level, the dummy load is separated from the circuit so that useless power consumption is eliminated and efficient operation is ensured.
JP4193679A 1979-04-09 1979-04-09 Current controlling circuit for dummy load Pending JPS55136869A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4193679A JPS55136869A (en) 1979-04-09 1979-04-09 Current controlling circuit for dummy load

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4193679A JPS55136869A (en) 1979-04-09 1979-04-09 Current controlling circuit for dummy load

Publications (1)

Publication Number Publication Date
JPS55136869A true JPS55136869A (en) 1980-10-25

Family

ID=12622102

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4193679A Pending JPS55136869A (en) 1979-04-09 1979-04-09 Current controlling circuit for dummy load

Country Status (1)

Country Link
JP (1) JPS55136869A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5948662A (en) * 1982-09-13 1984-03-19 Nippon Telegr & Teleph Corp <Ntt> Apparatus for testing charge and discharge
JPS5967868A (en) * 1982-10-07 1984-04-17 Nemitsuku Ramuda Kk Dc stabilized power source
WO2000038304A1 (en) * 1998-12-18 2000-06-29 Koninklijke Philips Electronics N.V. Switched-mode power supply with a dummy load
JP2007115083A (en) * 2005-10-21 2007-05-10 Denso Corp Power supply circuit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5948662A (en) * 1982-09-13 1984-03-19 Nippon Telegr & Teleph Corp <Ntt> Apparatus for testing charge and discharge
JPS5967868A (en) * 1982-10-07 1984-04-17 Nemitsuku Ramuda Kk Dc stabilized power source
WO2000038304A1 (en) * 1998-12-18 2000-06-29 Koninklijke Philips Electronics N.V. Switched-mode power supply with a dummy load
JP2007115083A (en) * 2005-10-21 2007-05-10 Denso Corp Power supply circuit

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