JPS5556473A - Power source device - Google Patents

Power source device

Info

Publication number
JPS5556473A
JPS5556473A JP12909978A JP12909978A JPS5556473A JP S5556473 A JPS5556473 A JP S5556473A JP 12909978 A JP12909978 A JP 12909978A JP 12909978 A JP12909978 A JP 12909978A JP S5556473 A JPS5556473 A JP S5556473A
Authority
JP
Japan
Prior art keywords
current
power transformer
power source
output
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
JP12909978A
Other languages
Japanese (ja)
Inventor
Takeichi Nishio
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 JP12909978A priority Critical patent/JPS5556473A/en
Publication of JPS5556473A publication Critical patent/JPS5556473A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To provide a power source wherein the secondary circuit of the power transformer is free from damage due to the extraordinary increase of its output current by controlling the power transformer so that its primary current may decrease when the overcurrent protecting circuit is put in operation.
CONSTITUTION: The output of an inversion circuit 18 is smoothed and superposed to the DC voltage of a condenser 15. When an overcurrent protecting circuit is put in operation smaller current is flowed into transistors 4a, 4b which have been control led than they are at an ordinary condition. In this way, since the current on the input part of a power transformer 6 is controlled so that it may decrease the output voltage is restrained.
COPYRIGHT: (C)1980,JPO&Japio
JP12909978A 1978-10-19 1978-10-19 Power source device Pending JPS5556473A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12909978A JPS5556473A (en) 1978-10-19 1978-10-19 Power source device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12909978A JPS5556473A (en) 1978-10-19 1978-10-19 Power source device

Publications (1)

Publication Number Publication Date
JPS5556473A true JPS5556473A (en) 1980-04-25

Family

ID=15001038

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12909978A Pending JPS5556473A (en) 1978-10-19 1978-10-19 Power source device

Country Status (1)

Country Link
JP (1) JPS5556473A (en)

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