JPS55685A - Filter unit - Google Patents

Filter unit

Info

Publication number
JPS55685A
JPS55685A JP4555079A JP4555079A JPS55685A JP S55685 A JPS55685 A JP S55685A JP 4555079 A JP4555079 A JP 4555079A JP 4555079 A JP4555079 A JP 4555079A JP S55685 A JPS55685 A JP S55685A
Authority
JP
Japan
Prior art keywords
filter unit
features
windings
inductance
pair
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
JP4555079A
Other languages
Japanese (ja)
Inventor
Hiromi Kusakabe
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP4555079A priority Critical patent/JPS55685A/en
Publication of JPS55685A publication Critical patent/JPS55685A/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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/42—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns
    • H03H7/425—Balance-balance networks
    • H03H7/427—Common-mode filters

Landscapes

  • Filters And Equalizers (AREA)

Abstract

PURPOSE:To obtain a small-size and low-cost filter unit which features a high noise prevention property. CONSTITUTION:Filter unit 10 features the longitudinal connection of double-wire coil 11 for in-phase noise component prevention and 4-terminal capacitor 12 for adverse phase noise component prevention. Coil 11 features two units of windings 22 and 23 provided to core 21, and each one end of the windings form a pair of input terminal 24 along with a pair of output terminal 25 formed by each of the other ends. And windings 22 and 23 have no inductance to the current of the opposite directions to each other because the magnetic fields generated are offset each other, and have the inductance to the current in the same direction since the generated magnetic fields are in the same direction to each other.
JP4555079A 1979-04-14 1979-04-14 Filter unit Pending JPS55685A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4555079A JPS55685A (en) 1979-04-14 1979-04-14 Filter unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4555079A JPS55685A (en) 1979-04-14 1979-04-14 Filter unit

Publications (1)

Publication Number Publication Date
JPS55685A true JPS55685A (en) 1980-01-07

Family

ID=12722464

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4555079A Pending JPS55685A (en) 1979-04-14 1979-04-14 Filter unit

Country Status (1)

Country Link
JP (1) JPS55685A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5871214A (en) * 1981-10-20 1983-04-27 Nippon Denso Co Ltd Automobile's cooler
JP2000151327A (en) * 1998-11-12 2000-05-30 Murata Mfg Co Ltd Laminate type noise filter
JP2014054131A (en) * 2012-09-10 2014-03-20 Murata Mfg Co Ltd Capacitor circuit, dc-dc converter circuit, and dc power-supply device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5871214A (en) * 1981-10-20 1983-04-27 Nippon Denso Co Ltd Automobile's cooler
JPS6146351B2 (en) * 1981-10-20 1986-10-14 Nippon Denso Kk
JP2000151327A (en) * 1998-11-12 2000-05-30 Murata Mfg Co Ltd Laminate type noise filter
JP2014054131A (en) * 2012-09-10 2014-03-20 Murata Mfg Co Ltd Capacitor circuit, dc-dc converter circuit, and dc power-supply device

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