GB9007901D0 - Noise reduction in an appliance with a high-voltage transformer - Google Patents

Noise reduction in an appliance with a high-voltage transformer

Info

Publication number
GB9007901D0
GB9007901D0 GB909007901A GB9007901A GB9007901D0 GB 9007901 D0 GB9007901 D0 GB 9007901D0 GB 909007901 A GB909007901 A GB 909007901A GB 9007901 A GB9007901 A GB 9007901A GB 9007901 D0 GB9007901 D0 GB 9007901D0
Authority
GB
United Kingdom
Prior art keywords
appliance
noise reduction
voltage transformer
transformer
voltage
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
GB909007901A
Other versions
GB2230388A (en
GB2230388B (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB9007901D0 publication Critical patent/GB9007901D0/en
Publication of GB2230388A publication Critical patent/GB2230388A/en
Application granted granted Critical
Publication of GB2230388B publication Critical patent/GB2230388B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H01F27/33—Arrangements for noise damping
    • 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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • 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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • H01F27/366—Electric or magnetic shields or screens made of ferromagnetic material

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Constitution Of High-Frequency Heating (AREA)
  • Electric Ovens (AREA)
GB9007901A 1989-04-07 1990-04-06 Noise reduction in an appliance with a high-voltage transformer Expired - Fee Related GB2230388B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE8904380U DE8904380U1 (en) 1989-04-07 1989-04-07 High voltage transformer

Publications (3)

Publication Number Publication Date
GB9007901D0 true GB9007901D0 (en) 1990-06-06
GB2230388A GB2230388A (en) 1990-10-17
GB2230388B GB2230388B (en) 1993-10-06

Family

ID=6838054

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9007901A Expired - Fee Related GB2230388B (en) 1989-04-07 1990-04-06 Noise reduction in an appliance with a high-voltage transformer

Country Status (6)

Country Link
DD (1) DD299096A5 (en)
DE (1) DE8904380U1 (en)
ES (1) ES1013120Y (en)
FR (1) FR2646010B1 (en)
GB (1) GB2230388B (en)
IT (1) IT219424Z2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040064131A (en) 2003-01-09 2004-07-16 삼성전자주식회사 Microwave oven

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1141086A (en) * 1966-09-19 1969-01-22 Toko Inc Improvements in or relating to high frequency transformers
CA1010979A (en) * 1973-09-14 1977-05-24 Ibm Canada Limited - Ibm Canada Limitee Magnetic field shielding for acoustic noise control
US4373608A (en) * 1979-12-20 1983-02-15 General Electric Company Tuned sound barriers
DE3126498C3 (en) * 1981-07-04 1987-07-09 Philips Patentverwaltung Gmbh, 2000 Hamburg Magnetic shielding for a transmitter
SE441793B (en) * 1981-09-16 1985-11-04 Asea Ab The transformer IES
DE3207606C2 (en) * 1982-03-03 1984-10-18 Philips Patentverwaltung Gmbh, 2000 Hamburg Shielding device with tolerance compensation on a mains transformer
US4459576A (en) * 1982-09-29 1984-07-10 Westinghouse Electric Corp. Toroidal transformer with electrostatic shield
CA1309752C (en) * 1987-05-14 1992-11-03 Kimiaki Yamaguchi Stationary induction apparatus

Also Published As

Publication number Publication date
IT9020888U1 (en) 1991-09-23
DD299096A5 (en) 1992-03-26
IT219424Z2 (en) 1993-02-26
FR2646010A1 (en) 1990-10-19
GB2230388A (en) 1990-10-17
FR2646010B1 (en) 1995-07-13
DE8904380U1 (en) 1989-05-24
ES1013120U (en) 1990-11-01
IT9020888V0 (en) 1990-03-23
ES1013120Y (en) 1991-05-01
GB2230388B (en) 1993-10-06

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 19950419

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20010406