GB2084809B - Printed circuit transformers - Google Patents

Printed circuit transformers

Info

Publication number
GB2084809B
GB2084809B GB8127804A GB8127804A GB2084809B GB 2084809 B GB2084809 B GB 2084809B GB 8127804 A GB8127804 A GB 8127804A GB 8127804 A GB8127804 A GB 8127804A GB 2084809 B GB2084809 B GB 2084809B
Authority
GB
United Kingdom
Prior art keywords
printed circuit
circuit transformers
transformers
printed
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.)
Expired
Application number
GB8127804A
Other versions
GB2084809A (en
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.)
Communications Patents Ltd
Original Assignee
Communications Patents 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 Communications Patents Ltd filed Critical Communications Patents Ltd
Priority to GB8127804A priority Critical patent/GB2084809B/en
Publication of GB2084809A publication Critical patent/GB2084809A/en
Application granted granted Critical
Publication of GB2084809B publication Critical patent/GB2084809B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2804—Printed windings
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/16—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor
    • H05K1/165—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor incorporating printed inductors
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0286—Programmable, customizable or modifiable circuits
    • H05K1/0293—Individual printed conductors which are adapted for modification, e.g. fusable or breakable conductors, printed switches
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/03—Conductive materials
    • H05K2201/0302—Properties and characteristics in general
    • H05K2201/0305—Solder used for other purposes than connections between PCB or components, e.g. for filling vias or for programmable patterns
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/09—Shape and layout
    • H05K2201/09209—Shape and layout details of conductors
    • H05K2201/09218—Conductive traces
    • H05K2201/09236—Parallel layout
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/09—Shape and layout
    • H05K2201/09209—Shape and layout details of conductors
    • H05K2201/0929—Conductive planes
    • H05K2201/093—Layout of power planes, ground planes or power supply conductors, e.g. having special clearance holes therein
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/09—Shape and layout
    • H05K2201/09209—Shape and layout details of conductors
    • H05K2201/09654—Shape and layout details of conductors covering at least two types of conductors provided for in H05K2201/09218 - H05K2201/095
    • H05K2201/09663—Divided layout, i.e. conductors divided in two or more parts
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/17—Post-manufacturing processes
    • H05K2203/171—Tuning, e.g. by trimming of printed components or high frequency circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)
GB8127804A 1980-10-01 1981-09-15 Printed circuit transformers Expired GB2084809B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8127804A GB2084809B (en) 1980-10-01 1981-09-15 Printed circuit transformers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8031656 1980-10-01
GB8127804A GB2084809B (en) 1980-10-01 1981-09-15 Printed circuit transformers

Publications (2)

Publication Number Publication Date
GB2084809A GB2084809A (en) 1982-04-15
GB2084809B true GB2084809B (en) 1984-01-18

Family

ID=26277065

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8127804A Expired GB2084809B (en) 1980-10-01 1981-09-15 Printed circuit transformers

Country Status (1)

Country Link
GB (1) GB2084809B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE8701368L (en) * 1987-04-01 1988-10-02 Flaekt Ab VOLTAGE CONVERSION DEVICE
CA1278051C (en) * 1988-01-15 1990-12-18 Gordon Glen Rabjohn Balanced planar transformers
FR2644664B1 (en) * 1989-03-20 1996-04-26 Alcatel Radiotelephone PRINTED TRANSFORMER ON PRINTED CIRCUIT, AND POWER DIVIDING PRINTED CIRCUIT COMPRISING SUCH A TRANSFORMER
FR2652197B1 (en) * 1989-09-18 1992-09-18 Motorola Semiconducteurs Borde IMPROVED SYMMETRIC-DISSYMMETRIC TRANSFORMERS.
FR2652210B1 (en) * 1989-09-20 1995-06-16 Alcatel Radiotelephone PHASE AND AMPLITUDE MODULATION CIRCUIT.
US5003622A (en) * 1989-09-26 1991-03-26 Astec International Limited Printed circuit transformer
FR2656159A1 (en) * 1989-12-19 1991-06-21 Portenseigne Radiotechnique SYMMETER.
JPH05315844A (en) * 1992-05-08 1993-11-26 Sony Corp Mixer input circuit
US5304959A (en) * 1992-10-16 1994-04-19 Spectrian, Inc. Planar microstrip balun
AU2542301A (en) 2000-01-24 2001-07-31 Herman Allison A planar transformer
DE10105696A1 (en) 2001-02-08 2002-08-14 Rohde & Schwarz Balun

Also Published As

Publication number Publication date
GB2084809A (en) 1982-04-15

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee