JPS5484225A - Switching power source circuit - Google Patents

Switching power source circuit

Info

Publication number
JPS5484225A
JPS5484225A JP15134577A JP15134577A JPS5484225A JP S5484225 A JPS5484225 A JP S5484225A JP 15134577 A JP15134577 A JP 15134577A JP 15134577 A JP15134577 A JP 15134577A JP S5484225 A JPS5484225 A JP S5484225A
Authority
JP
Japan
Prior art keywords
circuit
power source
source circuit
hold
switching power
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
JP15134577A
Other languages
Japanese (ja)
Inventor
Mitsuo Osawa
Akio Koizumi
Hiroshi Nakazawa
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP15134577A priority Critical patent/JPS5484225A/en
Priority to US05/968,135 priority patent/US4236198A/en
Priority to CA317,986A priority patent/CA1130857A/en
Priority to NL7812183A priority patent/NL7812183A/en
Priority to AU42524/78A priority patent/AU527701B2/en
Priority to FR7835442A priority patent/FR2412114A1/en
Priority to DE19782854410 priority patent/DE2854410A1/en
Priority to GB7848940A priority patent/GB2010605B/en
Publication of JPS5484225A publication Critical patent/JPS5484225A/en
Priority to CA332,122A priority patent/CA1132195A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent malfunction of the switching power source circuit while maintaining satisfactory duty service efficiency thereof by providing a protective circuit of the power source circuit with a hold circuit.
CONSTITUTION: In addition to an overcurrent detection circuit 17 a hold circuit for memorizing the output of this circuit is provided. The hole circuit is connected at its input side to the output side of the overcurrent detection circuit 17 and at its output side to the other input terminal of an AND circuit 18. Further, it is connected to a juncture between a resistor 9 and a capacitor 10 so that it can be sufficiently operated by current of charging of the capacitor 10 through the resistor 9 for starting. Thus, it holds a change at the time of occurrence of a fault to hold the switching operation stopped until the renewal of the power source. In this way, it is possible to prevent malfunction without reducing the duty service efficienty of the power source circuit and also obtain smooth starting operation of the power source circuit.
COPYRIGHT: (C)1979,JPO&Japio
JP15134577A 1977-12-16 1977-12-16 Switching power source circuit Pending JPS5484225A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
JP15134577A JPS5484225A (en) 1977-12-16 1977-12-16 Switching power source circuit
US05/968,135 US4236198A (en) 1977-12-16 1978-12-11 Switching regulator
CA317,986A CA1130857A (en) 1977-12-16 1978-12-14 Switching regulator with high efficiency starting resistor circuit
NL7812183A NL7812183A (en) 1977-12-16 1978-12-14 CONTROL UNIT OF THE SWITCHING TYPE.
AU42524/78A AU527701B2 (en) 1977-12-16 1978-12-14 Switching regulator
FR7835442A FR2412114A1 (en) 1977-12-16 1978-12-15 REGISTERED SWITCHING REGULATOR
DE19782854410 DE2854410A1 (en) 1977-12-16 1978-12-16 DC VOLTAGE REGULATOR
GB7848940A GB2010605B (en) 1977-12-16 1978-12-18 Switching regulators
CA332,122A CA1132195A (en) 1977-12-16 1979-07-19 Switching regulator with high efficiency starting resistor circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15134577A JPS5484225A (en) 1977-12-16 1977-12-16 Switching power source circuit

Publications (1)

Publication Number Publication Date
JPS5484225A true JPS5484225A (en) 1979-07-05

Family

ID=15516529

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15134577A Pending JPS5484225A (en) 1977-12-16 1977-12-16 Switching power source circuit

Country Status (1)

Country Link
JP (1) JPS5484225A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6390987U (en) * 1986-11-28 1988-06-13
JPH03124103A (en) * 1989-10-09 1991-05-27 Murata Mfg Co Ltd Component for irreversible circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6390987U (en) * 1986-11-28 1988-06-13
JPH0545113Y2 (en) * 1986-11-28 1993-11-17
JPH03124103A (en) * 1989-10-09 1991-05-27 Murata Mfg Co Ltd Component for irreversible circuit

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