JPS535719A - Dc-dc convertor - Google Patents

Dc-dc convertor

Info

Publication number
JPS535719A
JPS535719A JP7899476A JP7899476A JPS535719A JP S535719 A JPS535719 A JP S535719A JP 7899476 A JP7899476 A JP 7899476A JP 7899476 A JP7899476 A JP 7899476A JP S535719 A JPS535719 A JP S535719A
Authority
JP
Japan
Prior art keywords
input
voltage detecting
detecting circuit
convertor
circuit
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
JP7899476A
Other languages
Japanese (ja)
Inventor
Hirohisa Yamamura
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7899476A priority Critical patent/JPS535719A/en
Publication of JPS535719A publication Critical patent/JPS535719A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent excessive current at the starting time by providing an input-voltage detecting circuit to start softly with the use of an AND circuit receiving outputs from the input-voltage detecting circuit and the first switch.
COPYRIGHT: (C)1978,JPO&Japio
JP7899476A 1976-07-05 1976-07-05 Dc-dc convertor Pending JPS535719A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7899476A JPS535719A (en) 1976-07-05 1976-07-05 Dc-dc convertor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7899476A JPS535719A (en) 1976-07-05 1976-07-05 Dc-dc convertor

Publications (1)

Publication Number Publication Date
JPS535719A true JPS535719A (en) 1978-01-19

Family

ID=13677439

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7899476A Pending JPS535719A (en) 1976-07-05 1976-07-05 Dc-dc convertor

Country Status (1)

Country Link
JP (1) JPS535719A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02273072A (en) * 1989-03-02 1990-11-07 Philips Gloeilampenfab:Nv Electric source circuit
CN1078219C (en) * 1995-12-15 2002-01-23 旭化成株式会社 Process for preparing aromatic polycarbonate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02273072A (en) * 1989-03-02 1990-11-07 Philips Gloeilampenfab:Nv Electric source circuit
CN1078219C (en) * 1995-12-15 2002-01-23 旭化成株式会社 Process for preparing aromatic polycarbonate

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