JPS5588571A - Dc-dc converter - Google Patents

Dc-dc converter

Info

Publication number
JPS5588571A
JPS5588571A JP16575778A JP16575778A JPS5588571A JP S5588571 A JPS5588571 A JP S5588571A JP 16575778 A JP16575778 A JP 16575778A JP 16575778 A JP16575778 A JP 16575778A JP S5588571 A JPS5588571 A JP S5588571A
Authority
JP
Japan
Prior art keywords
transistor
converter
voltage
load
oscillation
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
JP16575778A
Other languages
Japanese (ja)
Inventor
Kazuyuki Tanaka
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP16575778A priority Critical patent/JPS5588571A/en
Publication of JPS5588571A publication Critical patent/JPS5588571A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To eliminate power consumption in a waiting state under power failure, by providing a transistor whose emitter is connected to a feedback winding terminal of a transformer and whose collector is connected to the base of an oscillation transistor.
CONSTITUTION: A load 13 is connected to a DC-DC converter A and a constant voltage circuit 20 coupled to an AC power source so that the load is driven by the converter or the constant voltage circuit. In the converter A, an oscillation transistor 1 is driven by the current of a battery 3 through a transformer 2 and a transistor 17 to perform blocking oscillation to supply a DC voltage to the load 13. The base of the transistor 17 is controlled by the output voltage through another transistor 10 to stabilize the voltage. As a result, in a waiting state under power failure, no current flows from the battery 3 to the transistor 10, power consumption is elminated and a fly-back voltage is raised to heighten an efficiency.
COPYRIGHT: (C)1980,JPO&Japio
JP16575778A 1978-12-27 1978-12-27 Dc-dc converter Pending JPS5588571A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16575778A JPS5588571A (en) 1978-12-27 1978-12-27 Dc-dc converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16575778A JPS5588571A (en) 1978-12-27 1978-12-27 Dc-dc converter

Publications (1)

Publication Number Publication Date
JPS5588571A true JPS5588571A (en) 1980-07-04

Family

ID=15818469

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16575778A Pending JPS5588571A (en) 1978-12-27 1978-12-27 Dc-dc converter

Country Status (1)

Country Link
JP (1) JPS5588571A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990055708A (en) * 1997-12-27 1999-07-15 김영환 DC-DC conversion circuit for powering FBT

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990055708A (en) * 1997-12-27 1999-07-15 김영환 DC-DC conversion circuit for powering FBT

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