JPS57199019A - Switching regulator - Google Patents

Switching regulator

Info

Publication number
JPS57199019A
JPS57199019A JP8438881A JP8438881A JPS57199019A JP S57199019 A JPS57199019 A JP S57199019A JP 8438881 A JP8438881 A JP 8438881A JP 8438881 A JP8438881 A JP 8438881A JP S57199019 A JPS57199019 A JP S57199019A
Authority
JP
Japan
Prior art keywords
voltage
circuit
supplied
diode
constant voltage
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
JP8438881A
Other languages
Japanese (ja)
Inventor
Mitsuru Nakamura
Eizaburo Sako
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP8438881A priority Critical patent/JPS57199019A/en
Publication of JPS57199019A publication Critical patent/JPS57199019A/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
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only

Landscapes

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

Abstract

PURPOSE:To increase the efficiency of a switching regulator, by switching a relay contact when the DC input voltage which is applied to a constant voltage diode reaches a prescribed level and then applying the DC output voltage to the constant voltage diode. CONSTITUTION:The contacts 8a and 8b close and open respectively when no current flows to a relay winding 8C. The input DC voltage Vin is supplied to a constant voltage diode 7, and the constant voltage (v) is supplied in the form of an auxiliary power supply to a switch control circuit in a main circuit 3. Then the output voltage Vout is generated by the circuit 3. The fact that the voltage Vout reached a prescribed level is detected by a voltage monitor circuit 9, and the circuit 9 works to supply the current to the winding 8C. Thus the contacts 8a and 8b open and close respectively, and the voltage supplied to the diode 7 is changed to Vout from Vin. Then the voltage (v) is supplied to the switch control circuit of the circuit 3 as an auxiliary power supply. In this case, no current flows to a resistance 6 to reduce the power consumption.
JP8438881A 1981-06-03 1981-06-03 Switching regulator Pending JPS57199019A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8438881A JPS57199019A (en) 1981-06-03 1981-06-03 Switching regulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8438881A JPS57199019A (en) 1981-06-03 1981-06-03 Switching regulator

Publications (1)

Publication Number Publication Date
JPS57199019A true JPS57199019A (en) 1982-12-06

Family

ID=13829176

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8438881A Pending JPS57199019A (en) 1981-06-03 1981-06-03 Switching regulator

Country Status (1)

Country Link
JP (1) JPS57199019A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS614464A (en) * 1984-06-19 1986-01-10 Nichicon Capacitor Ltd Auxiliary power source circuit for dc/dc converter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS614464A (en) * 1984-06-19 1986-01-10 Nichicon Capacitor Ltd Auxiliary power source circuit for dc/dc converter

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