JPS6443060A - Switching regulator - Google Patents

Switching regulator

Info

Publication number
JPS6443060A
JPS6443060A JP19830687A JP19830687A JPS6443060A JP S6443060 A JPS6443060 A JP S6443060A JP 19830687 A JP19830687 A JP 19830687A JP 19830687 A JP19830687 A JP 19830687A JP S6443060 A JPS6443060 A JP S6443060A
Authority
JP
Japan
Prior art keywords
modulation circuit
circuit
error amplifier
pulse width
winding
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
JP19830687A
Other languages
Japanese (ja)
Inventor
Katsuhiko Koseki
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP19830687A priority Critical patent/JPS6443060A/en
Publication of JPS6443060A publication Critical patent/JPS6443060A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To stabilize output voltage by detecting the switching current, supplying it to an error amplifier of a pulse width modulation circuit and controlling the duties. CONSTITUTION:A switching regulator is constituted of a start-up and auxiliary power circuit 1, a drive circuit 2, a pulse modulation circuit 3, a standard voltage source 4 and an oscillation circuit 5. And, a primary winding N5 of a current transformer GT is connected in series between a source S of a switching element Q and an input terminal, and a secondary winding N(b) is wound at the same polarity as that of the primary winding N5 so as to have the same starting of winding. The secondary winding N(b) is connected to an error amplifier of a pulse width modulation circuit 3 through a rectifier diode D4 and resistance R2. According to the constitution, the current of the switching element Q is detected and supplied to the error amplifier of the pulse modulation circuit 3 to compare it with the standard voltage source, and when detection voltage becomes low, a pulse width is widened and operates so as to standardize output voltage.
JP19830687A 1987-08-10 1987-08-10 Switching regulator Pending JPS6443060A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19830687A JPS6443060A (en) 1987-08-10 1987-08-10 Switching regulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19830687A JPS6443060A (en) 1987-08-10 1987-08-10 Switching regulator

Publications (1)

Publication Number Publication Date
JPS6443060A true JPS6443060A (en) 1989-02-15

Family

ID=16388939

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19830687A Pending JPS6443060A (en) 1987-08-10 1987-08-10 Switching regulator

Country Status (1)

Country Link
JP (1) JPS6443060A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010521954A (en) * 2007-03-23 2010-06-24 システム ジェネラル コーポレイション Primary control switching regulator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010521954A (en) * 2007-03-23 2010-06-24 システム ジェネラル コーポレイション Primary control switching regulator

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