JPS54144851A - Noise filter - Google Patents

Noise filter

Info

Publication number
JPS54144851A
JPS54144851A JP5314878A JP5314878A JPS54144851A JP S54144851 A JPS54144851 A JP S54144851A JP 5314878 A JP5314878 A JP 5314878A JP 5314878 A JP5314878 A JP 5314878A JP S54144851 A JPS54144851 A JP S54144851A
Authority
JP
Japan
Prior art keywords
coils
ternary
primary
filter
noise filter
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.)
Pending
Application number
JP5314878A
Other languages
Japanese (ja)
Inventor
Yukio Ishihara
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP5314878A priority Critical patent/JPS54144851A/en
Publication of JPS54144851A publication Critical patent/JPS54144851A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H1/00—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network
    • H03H1/0007—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network of radio frequency interference filters

Landscapes

  • Filters And Equalizers (AREA)

Abstract

PURPOSE:To release the limitation of size and to reduce the cost, by constituting the noise filter through widing the three coils of primary, secondary and ternary on the high frequency magnet core forming a close magnetic path. CONSTITUTION:The rectifying diodes D17 and 18 and the electrolytic capacitors C19, 20 are connected to the power supply 15, and the noise filter 24 consisting of the coils 21, 22, 23 of primary, secondary and ternary is connected to the post stage. Three coils of the filter 24 are magnetically coupled with each other, avoiding the necessity of shield with the rectifying circuit consisting of D17, 18 and C19, 20 to release the size limit. The filter 24 is made that three conductors 26 to 28 having insulation film are twisted in advance as one cnductor and it is wound on the high frequency core 25 to constitute the coils 21, 22, 23 of primary, secondary and ternary. Thus, it is remarkably advantageous in the productivity and the cost can be decreased.
JP5314878A 1978-05-02 1978-05-02 Noise filter Pending JPS54144851A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5314878A JPS54144851A (en) 1978-05-02 1978-05-02 Noise filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5314878A JPS54144851A (en) 1978-05-02 1978-05-02 Noise filter

Publications (1)

Publication Number Publication Date
JPS54144851A true JPS54144851A (en) 1979-11-12

Family

ID=12934736

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5314878A Pending JPS54144851A (en) 1978-05-02 1978-05-02 Noise filter

Country Status (1)

Country Link
JP (1) JPS54144851A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2618617A1 (en) * 1987-07-23 1989-01-27 Merlin Gerin DEVICE FOR FILTERING COMMON MODE DISTURBANCES AFFECTING THE CARDS OF A STATIC POWER CONVERTER
US5969583A (en) * 1996-12-23 1999-10-19 Acuson Corporation Common-mode EMI filter with a separately wound ground winding

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2618617A1 (en) * 1987-07-23 1989-01-27 Merlin Gerin DEVICE FOR FILTERING COMMON MODE DISTURBANCES AFFECTING THE CARDS OF A STATIC POWER CONVERTER
US5969583A (en) * 1996-12-23 1999-10-19 Acuson Corporation Common-mode EMI filter with a separately wound ground winding

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