JPS5484223A - Switching power source circuit - Google Patents

Switching power source circuit

Info

Publication number
JPS5484223A
JPS5484223A JP15134277A JP15134277A JPS5484223A JP S5484223 A JPS5484223 A JP S5484223A JP 15134277 A JP15134277 A JP 15134277A JP 15134277 A JP15134277 A JP 15134277A JP S5484223 A JPS5484223 A JP S5484223A
Authority
JP
Japan
Prior art keywords
power source
circuit
output side
time
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.)
Granted
Application number
JP15134277A
Other languages
Japanese (ja)
Other versions
JPS6024665B2 (en
Inventor
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 JP15134277A priority Critical patent/JPS6024665B2/en
Publication of JPS5484223A publication Critical patent/JPS5484223A/en
Publication of JPS6024665B2 publication Critical patent/JPS6024665B2/en
Expired legal-status Critical Current

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Abstract

PURPOSE: To prevent abnormal operation at the time of connecting power source with such an arrangement that a pulse signal from an oscillating circuit is supplied to a pulse width modulator when the detection level of a voltage detection circuit reaches a predetermined value.
CONSTITUTION: The output side of a control circuit power source 13 is connected to a voltage detection circuit 14, which serves to detect the power source output voltage and produce a reset pulse after a predetermined period of time, and the output side of which is in turn connected through an inverter 15 to one input terminal of an AND circuit 16 having the other input terminal connected to the output side of an oscillating circuit 11 and the output terminal connected to a pulse width modulator 10. With this arrangement, switching operation of the switching power source circuit can be obtained with the oscillating circuit always in the steady state, so that it is possible to prevent abnormal operation at the time of connecting the power source and ensure stability of the circuit itself.
COPYRIGHT: (C)1979,JPO&Japio
JP15134277A 1977-12-16 1977-12-16 switching power supply circuit Expired JPS6024665B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15134277A JPS6024665B2 (en) 1977-12-16 1977-12-16 switching power supply circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15134277A JPS6024665B2 (en) 1977-12-16 1977-12-16 switching power supply circuit

Publications (2)

Publication Number Publication Date
JPS5484223A true JPS5484223A (en) 1979-07-05
JPS6024665B2 JPS6024665B2 (en) 1985-06-14

Family

ID=15516464

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15134277A Expired JPS6024665B2 (en) 1977-12-16 1977-12-16 switching power supply circuit

Country Status (1)

Country Link
JP (1) JPS6024665B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0370724U (en) * 1989-11-08 1991-07-16

Also Published As

Publication number Publication date
JPS6024665B2 (en) 1985-06-14

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