JPS54137626A - Broad-band transformer circuit - Google Patents

Broad-band transformer circuit

Info

Publication number
JPS54137626A
JPS54137626A JP4612678A JP4612678A JPS54137626A JP S54137626 A JPS54137626 A JP S54137626A JP 4612678 A JP4612678 A JP 4612678A JP 4612678 A JP4612678 A JP 4612678A JP S54137626 A JPS54137626 A JP S54137626A
Authority
JP
Japan
Prior art keywords
winding
windings
turn ratio
balanced
capacitor
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
JP4612678A
Other languages
Japanese (ja)
Other versions
JPS6214926B2 (en
Inventor
Susumu Hasegawa
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 JP4612678A priority Critical patent/JPS54137626A/en
Publication of JPS54137626A publication Critical patent/JPS54137626A/en
Publication of JPS6214926B2 publication Critical patent/JPS6214926B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Coils Or Transformers For Communication (AREA)
  • Filters And Equalizers (AREA)

Abstract

PURPOSE: In an insulating transformer comprising balanced and unblanced windings of an arbitrary turn ratio, to relieve the influence of longitudinal current by connecting a line type longitudinal retardation coil of a turn ratio 1/1 in series with the balanced winding and ground the middle tap of the balanced winding through a capacitor.
CONSTITUTION: An insulating transformer 3 comprises a balanced winding 6 and an unbalanced winding 8 of an arbitrary turn ratio. A line type longitudianl retardation coil 4 comprising two windings 10 and 11 of a turn ratio 1/1 is connected to the winding 6, and the middle tap 12 is grounded through a capacitor 13 of which the impedance is negligible. The longitudinal current IU flowing into the coil 4 from one side 14,15 is flowed to the earth through windings 16 and 17 and the capacitor 13, to cancel the magnetic flux developed in the windings 16 and 17. The potentials at the ends 19 and 20 of the winding 6 are nearly equal to the earth potential, so that the current IU does not affect the unbalanced winding 8. Thus there is provided a communication circuit of good longitudinal retardation characteristic.
COPYRIGHT: (C)1979,JPO&Japio
JP4612678A 1978-04-18 1978-04-18 Broad-band transformer circuit Granted JPS54137626A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4612678A JPS54137626A (en) 1978-04-18 1978-04-18 Broad-band transformer circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4612678A JPS54137626A (en) 1978-04-18 1978-04-18 Broad-band transformer circuit

Publications (2)

Publication Number Publication Date
JPS54137626A true JPS54137626A (en) 1979-10-25
JPS6214926B2 JPS6214926B2 (en) 1987-04-04

Family

ID=12738285

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4612678A Granted JPS54137626A (en) 1978-04-18 1978-04-18 Broad-band transformer circuit

Country Status (1)

Country Link
JP (1) JPS54137626A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003018039A (en) * 2001-04-04 2003-01-17 Hitachi Metals Ltd Rf stage module
JP2006054914A (en) * 2001-04-04 2006-02-23 Hitachi Metals Ltd Module
JP2011511563A (en) * 2008-02-04 2011-04-07 フリースケール セミコンダクター インコーポレイテッド Balun converter with improved harmonic suppression performance

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50151409A (en) * 1974-05-25 1975-12-05

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50151409A (en) * 1974-05-25 1975-12-05

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003018039A (en) * 2001-04-04 2003-01-17 Hitachi Metals Ltd Rf stage module
JP2006054914A (en) * 2001-04-04 2006-02-23 Hitachi Metals Ltd Module
JP2011511563A (en) * 2008-02-04 2011-04-07 フリースケール セミコンダクター インコーポレイテッド Balun converter with improved harmonic suppression performance

Also Published As

Publication number Publication date
JPS6214926B2 (en) 1987-04-04

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