JPS6464560A - Switching power source - Google Patents

Switching power source

Info

Publication number
JPS6464560A
JPS6464560A JP22062387A JP22062387A JPS6464560A JP S6464560 A JPS6464560 A JP S6464560A JP 22062387 A JP22062387 A JP 22062387A JP 22062387 A JP22062387 A JP 22062387A JP S6464560 A JPS6464560 A JP S6464560A
Authority
JP
Japan
Prior art keywords
transformer
rectifier smoothing
smoothing circuit
capacitor
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
JP22062387A
Other languages
Japanese (ja)
Inventor
Shiyousuke Takamura
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Priority to JP22062387A priority Critical patent/JPS6464560A/en
Publication of JPS6464560A publication Critical patent/JPS6464560A/en
Pending legal-status Critical Current

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  • Dc-Dc Converters (AREA)

Abstract

PURPOSE:To prevent the polarized magnetism of a transformer by off-setting the difference in each floating inductance of two loops between two secondary windings of a transformer for voltage transformation and a rectifier smoothing circuit by a capacitor. CONSTITUTION:A switching power supply is constituted of a switching circuit 3, a transformer 4 having mutually equivalent secondary windings 42, 43 and a primary winding 41 which is connected to an AC output terminal of the switching circuit 3, a rectifier smoothing circuit 5, a stabilized control circuit 8 and a capacitor 9. The floating inductance of a loop between the secondary winding 42 and the rectifier smoothing circuit 5 is made higher than the floating inductance between the secondary winding 43 and the rectifier smoothing circuit 5, and the capacity value of the capacitor 9 is set so as to off-set the difference of the two. Accordingly, the time that the current is supplied to each of the secondary windings 42 and 43 becomes the same, and the generation of a polarized magnetism of the transformer 4 is prevented.
JP22062387A 1987-09-02 1987-09-02 Switching power source Pending JPS6464560A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22062387A JPS6464560A (en) 1987-09-02 1987-09-02 Switching power source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22062387A JPS6464560A (en) 1987-09-02 1987-09-02 Switching power source

Publications (1)

Publication Number Publication Date
JPS6464560A true JPS6464560A (en) 1989-03-10

Family

ID=16753872

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22062387A Pending JPS6464560A (en) 1987-09-02 1987-09-02 Switching power source

Country Status (1)

Country Link
JP (1) JPS6464560A (en)

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