JPS648867A - Switching regulator - Google Patents

Switching regulator

Info

Publication number
JPS648867A
JPS648867A JP16490987A JP16490987A JPS648867A JP S648867 A JPS648867 A JP S648867A JP 16490987 A JP16490987 A JP 16490987A JP 16490987 A JP16490987 A JP 16490987A JP S648867 A JPS648867 A JP S648867A
Authority
JP
Japan
Prior art keywords
voltage
control circuit
transistor
output
starting
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.)
Granted
Application number
JP16490987A
Other languages
Japanese (ja)
Other versions
JP2670774B2 (en
Inventor
Hiroshi Yasui
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.)
Rohm Co Ltd
Original Assignee
Rohm 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 Rohm Co Ltd filed Critical Rohm Co Ltd
Priority to JP62164909A priority Critical patent/JP2670774B2/en
Publication of JPS648867A publication Critical patent/JPS648867A/en
Application granted granted Critical
Publication of JP2670774B2 publication Critical patent/JP2670774B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PURPOSE:To make a separate power source unnecessary by using an output voltage as a source voltage for a control circuit. CONSTITUTION:A chopper type switching regulator is composed of a switching transistor TR1, a rectifying and smoothing circuit RC, a control circuit CT and others. In this case, the source voltage input terminal (a) and reference voltage input terminal (b) of said control circuit CT is connected with an output terminal OUT. Also, said transistor TR1 is driven by a starting circuit KT at the time of starting so that the control circuit CT is started by the output of said transistor TR1, while the transistor TR1 is ON-OFF driven in response to a voltage from a chopping voltage output terminal C after starting. In this manner, because a regulate-controlled output voltage becomes a source voltage for the control circuit CT, a reference voltage generated on the basis of said source voltage varies little so that a regulate-action is stabilized.
JP62164909A 1987-06-30 1987-06-30 Sitchin Gregi Yurator Expired - Fee Related JP2670774B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62164909A JP2670774B2 (en) 1987-06-30 1987-06-30 Sitchin Gregi Yurator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62164909A JP2670774B2 (en) 1987-06-30 1987-06-30 Sitchin Gregi Yurator

Publications (2)

Publication Number Publication Date
JPS648867A true JPS648867A (en) 1989-01-12
JP2670774B2 JP2670774B2 (en) 1997-10-29

Family

ID=15802166

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62164909A Expired - Fee Related JP2670774B2 (en) 1987-06-30 1987-06-30 Sitchin Gregi Yurator

Country Status (1)

Country Link
JP (1) JP2670774B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0363079U (en) * 1989-10-17 1991-06-20

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56157266A (en) * 1980-05-05 1981-12-04 Rohm Co Ltd Power source
JPS5963688U (en) * 1982-10-20 1984-04-26 ソニー株式会社 Starting circuit of switching power supply
JPS6125087U (en) * 1984-07-18 1986-02-14 山水電気株式会社 switching regulator
JPS6192169A (en) * 1984-10-11 1986-05-10 Mitsubishi Electric Corp Multioutput dc/dc converter
JPS61174885U (en) * 1985-04-19 1986-10-31
JPS61295864A (en) * 1985-06-25 1986-12-26 Matsushita Electric Works Ltd Switching power source circuit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56157266A (en) * 1980-05-05 1981-12-04 Rohm Co Ltd Power source
JPS5963688U (en) * 1982-10-20 1984-04-26 ソニー株式会社 Starting circuit of switching power supply
JPS6125087U (en) * 1984-07-18 1986-02-14 山水電気株式会社 switching regulator
JPS6192169A (en) * 1984-10-11 1986-05-10 Mitsubishi Electric Corp Multioutput dc/dc converter
JPS61174885U (en) * 1985-04-19 1986-10-31
JPS61295864A (en) * 1985-06-25 1986-12-26 Matsushita Electric Works Ltd Switching power source circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0363079U (en) * 1989-10-17 1991-06-20

Also Published As

Publication number Publication date
JP2670774B2 (en) 1997-10-29

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees