JPS6455072A - Dc-dc converter - Google Patents

Dc-dc converter

Info

Publication number
JPS6455072A
JPS6455072A JP21068687A JP21068687A JPS6455072A JP S6455072 A JPS6455072 A JP S6455072A JP 21068687 A JP21068687 A JP 21068687A JP 21068687 A JP21068687 A JP 21068687A JP S6455072 A JPS6455072 A JP S6455072A
Authority
JP
Japan
Prior art keywords
circuit
voltage
triangular wave
generator circuit
input 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
JP21068687A
Other languages
Japanese (ja)
Inventor
Hiroyuki Misu
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Priority to JP21068687A priority Critical patent/JPS6455072A/en
Publication of JPS6455072A publication Critical patent/JPS6455072A/en
Pending legal-status Critical Current

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  • Dc-Dc Converters (AREA)

Abstract

PURPOSE:To eliminate the malfunction of a logical circuit by supplying a DC power of larger voltage out of LC powers of first-second voltages as a DC power source for a pulse signal generator circuit. CONSTITUTION:A DC-DC converter is composed of a triangular wave generator circuit 1, a reference voltage generator circuit 2, a composite circuit 3, a comparison circuit 4, a drive circuit 5, a transformer 6, rectifier circuits 7-8, a Zener diode D1, and diodes D2-D3 to output a DC power from an output terminal 11. Further, said composite circuit a composes (overlaps) a triangular wave 101 and a reference voltage 102 to generate a pulsating current 103, and said comparison circuit 4 generates a pulse signal 104. Also, when an input voltage 110 exceeds the Zener voltage of said Zener diode D1, said input voltage 110 is supplied as a DC voltage 120 to the triangular wave generator circuit 1 and others. Thus, an output voltage 107 abruptly rises even if the input voltage 110 ascends gradually, so that a logical circuit is prevented from malfunctioning.
JP21068687A 1987-08-24 1987-08-24 Dc-dc converter Pending JPS6455072A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21068687A JPS6455072A (en) 1987-08-24 1987-08-24 Dc-dc converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21068687A JPS6455072A (en) 1987-08-24 1987-08-24 Dc-dc converter

Publications (1)

Publication Number Publication Date
JPS6455072A true JPS6455072A (en) 1989-03-02

Family

ID=16593424

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21068687A Pending JPS6455072A (en) 1987-08-24 1987-08-24 Dc-dc converter

Country Status (1)

Country Link
JP (1) JPS6455072A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5972978A (en) * 1982-10-15 1984-04-25 Fujitsu Ltd Dc/dc converter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5972978A (en) * 1982-10-15 1984-04-25 Fujitsu Ltd Dc/dc converter

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