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JPS6439265A - Dc-dc converter - Google Patents

Dc-dc converter

Info

Publication number
JPS6439265A
JPS6439265A JP19165887A JP19165887A JPS6439265A JP S6439265 A JPS6439265 A JP S6439265A JP 19165887 A JP19165887 A JP 19165887A JP 19165887 A JP19165887 A JP 19165887A JP S6439265 A JPS6439265 A JP S6439265A
Authority
JP
Japan
Prior art keywords
time
converter
turned
voltage detecting
detecting element
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
JP19165887A
Other languages
Japanese (ja)
Other versions
JPH0582146B2 (en
Inventor
Hisao Kuwabara
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
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 filed Critical Toshiba Corp
Priority to JP19165887A priority Critical patent/JPS6439265A/en
Publication of JPS6439265A publication Critical patent/JPS6439265A/en
Publication of JPH0582146B2 publication Critical patent/JPH0582146B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Dc-Dc Converters (AREA)

Abstract

PURPOSE:To improve the conversion efficiency at the time of light load by setting a converter action at said time in the state of blocking oscillation. CONSTITUTION:A DC-DC converter is composed of an oscillating transistor(Tr) Q1, a bias current source I1, a booster coil L1, a DC cut-off capacitor C1, a detection diode D1, and a smoothing capacitor C1; and is also equipped with a maximum voltage detecting element 2, a minimum voltage detecting element 3, a switching element 4, and a negative feedback element 5. When a switch SW1 is ON, TrQS3 is turned ON so that the bias current source I1 is also turned ON to bias the base of the TrQ1. The maximum voltage detecting element 2 is turned ON with the ON-state of the switch SW1 to keep the booster voltage V0 of the converter 1. Thus, an oscillating circuit is stopped at the time of light load and a blocking oscillation is made so that the load is driven by a charge stored in the capacitor C2. At the time of heavy load, the oscillating circuit is oscillated continuously.
JP19165887A 1987-07-31 1987-07-31 Dc-dc converter Granted JPS6439265A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19165887A JPS6439265A (en) 1987-07-31 1987-07-31 Dc-dc converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19165887A JPS6439265A (en) 1987-07-31 1987-07-31 Dc-dc converter

Publications (2)

Publication Number Publication Date
JPS6439265A true JPS6439265A (en) 1989-02-09
JPH0582146B2 JPH0582146B2 (en) 1993-11-17

Family

ID=16278308

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19165887A Granted JPS6439265A (en) 1987-07-31 1987-07-31 Dc-dc converter

Country Status (1)

Country Link
JP (1) JPS6439265A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01264181A (en) * 1988-04-12 1989-10-20 Japan Storage Battery Co Ltd Cadmium negative plate and alkaline secondary battery using said negative plate
JPH0410588U (en) * 1990-05-10 1992-01-29
JPH0442771A (en) * 1990-06-06 1992-02-13 Fujitsu Ltd High efficiency DC/DC converter
JP2003061355A (en) * 2001-08-14 2003-02-28 Sanken Electric Co Ltd Self-excited dc-dc converter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01264181A (en) * 1988-04-12 1989-10-20 Japan Storage Battery Co Ltd Cadmium negative plate and alkaline secondary battery using said negative plate
JPH0410588U (en) * 1990-05-10 1992-01-29
JPH0442771A (en) * 1990-06-06 1992-02-13 Fujitsu Ltd High efficiency DC/DC converter
JP2003061355A (en) * 2001-08-14 2003-02-28 Sanken Electric Co Ltd Self-excited dc-dc converter

Also Published As

Publication number Publication date
JPH0582146B2 (en) 1993-11-17

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees