JPS6488612A - Dc voltage stabilized power source device - Google Patents

Dc voltage stabilized power source device

Info

Publication number
JPS6488612A
JPS6488612A JP24527987A JP24527987A JPS6488612A JP S6488612 A JPS6488612 A JP S6488612A JP 24527987 A JP24527987 A JP 24527987A JP 24527987 A JP24527987 A JP 24527987A JP S6488612 A JPS6488612 A JP S6488612A
Authority
JP
Japan
Prior art keywords
regulator
voltage
switching
circuit
power source
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
JP24527987A
Other languages
Japanese (ja)
Inventor
Tadao Sakaguchi
Korekimi Nakamura
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.)
Furuno Electric Co Ltd
Original Assignee
Furuno 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 Furuno Electric Co Ltd filed Critical Furuno Electric Co Ltd
Priority to JP24527987A priority Critical patent/JPS6488612A/en
Publication of JPS6488612A publication Critical patent/JPS6488612A/en
Pending legal-status Critical Current

Links

Landscapes

  • Continuous-Control Power Sources That Use Transistors (AREA)
  • Dc-Dc Converters (AREA)

Abstract

PURPOSE:To cope with input voltages in a wide range by alternately switching a regulator circuit to make it act as a series regulator in case a detected input voltage is below a threshold voltage. CONSTITUTION:The regulator circuit acts as a series regulator or a switching regulator to respectively stabilize and output an input voltage, and a detection means 3 detects an input voltage. In response to this detection, a switching means Q4 lets the regulator circuit act as a switching regulator in case the detected voltage is above the prescribed threshold voltage, on the other hand, if the detected voltage is below the threshold voltage, the circuit is made operate as a series regulator; the regulator circuit is thus switched alternately. As a result, input voltages in a considerably wide range can be coped with.
JP24527987A 1987-09-29 1987-09-29 Dc voltage stabilized power source device Pending JPS6488612A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24527987A JPS6488612A (en) 1987-09-29 1987-09-29 Dc voltage stabilized power source device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24527987A JPS6488612A (en) 1987-09-29 1987-09-29 Dc voltage stabilized power source device

Publications (1)

Publication Number Publication Date
JPS6488612A true JPS6488612A (en) 1989-04-03

Family

ID=17131309

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24527987A Pending JPS6488612A (en) 1987-09-29 1987-09-29 Dc voltage stabilized power source device

Country Status (1)

Country Link
JP (1) JPS6488612A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4233078A1 (en) * 1991-10-01 1993-04-08 Mitsubishi Electric Corp Stabilised DC power supply unit for, e.g. CD or cassette player and/or tuner - has switch reacting to device mode of operation to select state by which stabilisation is performed using series transistor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54144947A (en) * 1978-04-03 1979-11-12 Toko Inc Switching power unit
JPS57152020A (en) * 1981-03-16 1982-09-20 Seiko Epson Corp Power supply circuit for device with small sized printer
JPS57182816A (en) * 1981-05-07 1982-11-10 Mitsubishi Electric Corp Direct current stabilizing power supply circuit
JPS60257766A (en) * 1984-05-31 1985-12-19 Panafacom Ltd Dc-dc power converter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54144947A (en) * 1978-04-03 1979-11-12 Toko Inc Switching power unit
JPS57152020A (en) * 1981-03-16 1982-09-20 Seiko Epson Corp Power supply circuit for device with small sized printer
JPS57182816A (en) * 1981-05-07 1982-11-10 Mitsubishi Electric Corp Direct current stabilizing power supply circuit
JPS60257766A (en) * 1984-05-31 1985-12-19 Panafacom Ltd Dc-dc power converter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4233078A1 (en) * 1991-10-01 1993-04-08 Mitsubishi Electric Corp Stabilised DC power supply unit for, e.g. CD or cassette player and/or tuner - has switch reacting to device mode of operation to select state by which stabilisation is performed using series transistor

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