JPS558239A - Power supply circuit - Google Patents

Power supply circuit

Info

Publication number
JPS558239A
JPS558239A JP7998778A JP7998778A JPS558239A JP S558239 A JPS558239 A JP S558239A JP 7998778 A JP7998778 A JP 7998778A JP 7998778 A JP7998778 A JP 7998778A JP S558239 A JPS558239 A JP S558239A
Authority
JP
Japan
Prior art keywords
diodes
capacitor
circuits
power supply
supply 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.)
Granted
Application number
JP7998778A
Other languages
Japanese (ja)
Other versions
JPS6124913B2 (en
Inventor
Hirokazu Toya
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
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP7998778A priority Critical patent/JPS558239A/en
Publication of JPS558239A publication Critical patent/JPS558239A/en
Publication of JPS6124913B2 publication Critical patent/JPS6124913B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Dc-Dc Converters (AREA)

Abstract

PURPOSE: To prevent a switching element from damaging and stably operate the element in a power supply circuit by independently forming two smoothing circuits at the secondary side of a power converting transformer.
CONSTITUTION: The secondary winding of a transfomer (Tr)18 is connected at both ends thereof to the anodes of diodes (D) 19, 21. The cathodes of the diodes 19, 21 are connected to the cathodes of dides 25, 26, respectively. The mid-point of the secondary winding 18s is connected to the anodes of the diodes 25, 26. The diodes 19, 25 form a rectifying circuit 27, and the diodes 21, 26 form a rectifying circuit 28. The circuits 27, 28 are connected at the output sides thereof through choke coils 31, 32, respectively to one terminal of a capacitor 23. The other terminal of the capacitor 23 is connected to the connecting point of the diodes 25, 26. The voltage applied to input terminals 11, 12 is rectified via the rectifying circuits 27, 28 at the secondary side of a transistor 18, smoothed via the choke coils 31, 32, and charged in a common capacitor 23. Thus, it can prevent the switching element from damaging, but operate it stably.
COPYRIGHT: (C)1980,JPO&Japio
JP7998778A 1978-06-30 1978-06-30 Power supply circuit Granted JPS558239A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7998778A JPS558239A (en) 1978-06-30 1978-06-30 Power supply circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7998778A JPS558239A (en) 1978-06-30 1978-06-30 Power supply circuit

Publications (2)

Publication Number Publication Date
JPS558239A true JPS558239A (en) 1980-01-21
JPS6124913B2 JPS6124913B2 (en) 1986-06-13

Family

ID=13705653

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7998778A Granted JPS558239A (en) 1978-06-30 1978-06-30 Power supply circuit

Country Status (1)

Country Link
JP (1) JPS558239A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58179162A (en) * 1982-04-13 1983-10-20 Nec Corp Power source circuit
JPS63186561A (en) * 1987-01-28 1988-08-02 Densetsu:Kk Full-wave converter
WO2019135388A1 (en) * 2018-01-04 2019-07-11 Ntn株式会社 Isolated switching power supply

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58179162A (en) * 1982-04-13 1983-10-20 Nec Corp Power source circuit
JPS63186561A (en) * 1987-01-28 1988-08-02 Densetsu:Kk Full-wave converter
WO2019135388A1 (en) * 2018-01-04 2019-07-11 Ntn株式会社 Isolated switching power supply
JP2019122132A (en) * 2018-01-04 2019-07-22 Ntn株式会社 Isolated switching power supply

Also Published As

Publication number Publication date
JPS6124913B2 (en) 1986-06-13

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