JPS6423764A - Dc/dc converter - Google Patents

Dc/dc converter

Info

Publication number
JPS6423764A
JPS6423764A JP17767587A JP17767587A JPS6423764A JP S6423764 A JPS6423764 A JP S6423764A JP 17767587 A JP17767587 A JP 17767587A JP 17767587 A JP17767587 A JP 17767587A JP S6423764 A JPS6423764 A JP S6423764A
Authority
JP
Japan
Prior art keywords
voltage
capacitor
generating means
duty factor
control
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
JP17767587A
Other languages
Japanese (ja)
Inventor
Jun Senda
Mitsuaki Kosaka
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP17767587A priority Critical patent/JPS6423764A/en
Publication of JPS6423764A publication Critical patent/JPS6423764A/en
Pending legal-status Critical Current

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  • Dc-Dc Converters (AREA)

Abstract

PURPOSE:To lower reverse voltage to a switch element, by applying input voltage and voltage corresponding to a duty factor, to a capacitor, with a control voltage generating means. CONSTITUTION:So far as a DC-DC converter is concerned, the primary winding n1 of a series-connected transformer T, a transistor(Tr) Q3, and a capacitor C3 in a control voltage generating means 3 are connected to a DC power source 4, and the secondary winding n2 of the transformer T is connected to a load RL via a rectifying and smoothing section 2. Besides, when the Tr Q3 is ON/ OFF-worked according to control signal, then by said control voltage generating means 3, a Tr Q2 is used and voltage according to input voltage Vin and a duty factor is applied to the capacitor C3. Then, the voltage applied to the primary winding n1 serves as a difference component between the input voltage Vin and the voltage of the capacitor C3, and voltage applied to a Tr Q1 and a diode turns constant regardless of the duty factor, to reduce applied voltage.
JP17767587A 1987-07-15 1987-07-15 Dc/dc converter Pending JPS6423764A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17767587A JPS6423764A (en) 1987-07-15 1987-07-15 Dc/dc converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17767587A JPS6423764A (en) 1987-07-15 1987-07-15 Dc/dc converter

Publications (1)

Publication Number Publication Date
JPS6423764A true JPS6423764A (en) 1989-01-26

Family

ID=16035141

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17767587A Pending JPS6423764A (en) 1987-07-15 1987-07-15 Dc/dc converter

Country Status (1)

Country Link
JP (1) JPS6423764A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002112554A (en) * 2000-09-29 2002-04-12 Takamisawa Cybernetics Co Ltd Inverter device
US7860414B2 (en) 2005-08-29 2010-12-28 Fuji Xerox Co., Ltd. Heating apparatus and fixing apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002112554A (en) * 2000-09-29 2002-04-12 Takamisawa Cybernetics Co Ltd Inverter device
US7860414B2 (en) 2005-08-29 2010-12-28 Fuji Xerox Co., Ltd. Heating apparatus and fixing apparatus

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