GB554367A - Inductance apparatus - Google Patents

Inductance apparatus

Info

Publication number
GB554367A
GB554367A GB8435/42A GB843542A GB554367A GB 554367 A GB554367 A GB 554367A GB 8435/42 A GB8435/42 A GB 8435/42A GB 843542 A GB843542 A GB 843542A GB 554367 A GB554367 A GB 554367A
Authority
GB
United Kingdom
Prior art keywords
transformer
impedance termination
winding
impedance
june
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
GB8435/42A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB554367A publication Critical patent/GB554367A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F19/00—Fixed transformers or mutual inductances of the signal type
    • H01F19/04—Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range
    • H01F19/06—Broad-band transformers, e.g. suitable for handling frequencies well down into the audio range

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

554,367. Transformers for broad band signalling systems. STANDARD TELEPHONES & CABLES, Ltd. June 19, 1942, No. 8435. Convention date, June 28, 1941. [Class 38 (ii)] In a broad band signalling wave transmission system, uniformity of attenuation and relatively low reflection is obtained by means of an impedance network 20, 21 which constitutes a tertiary winding to the two coupled windings 11, 13 and is adapted to neutralize the leakage inductance between them. This leakage inductance is diagrammatically represented at 19. In the arrangement shown a load 12 which may comprise central office equipment is supplied through the transformer 11, 13 from a source 8 of A.C. and a resistor 7 both of which may simulate a suitable carrier current transmission line 6. The impedance termination of the transformer 11 looking into the winding 13 is arranged to match the impedance termination of the line 6 and the impedance termination of the transformer looking into the winding 11 matches the impedance termination of the load 12. The invention may be applied to hybrid coils, Figs. 2 and 3 (not shown).
GB8435/42A 1941-06-28 1942-06-19 Inductance apparatus Expired GB554367A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US554367XA 1941-06-28 1941-06-28

Publications (1)

Publication Number Publication Date
GB554367A true GB554367A (en) 1943-06-30

Family

ID=21997778

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8435/42A Expired GB554367A (en) 1941-06-28 1942-06-19 Inductance apparatus

Country Status (1)

Country Link
GB (1) GB554367A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016112192B4 (en) 2015-07-07 2023-06-07 Kabushiki Kaisha Toyota Jidoshokki Vehicle inverter device and motor driven compressor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016112192B4 (en) 2015-07-07 2023-06-07 Kabushiki Kaisha Toyota Jidoshokki Vehicle inverter device and motor driven compressor

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