JPS57197937A - Block filter - Google Patents

Block filter

Info

Publication number
JPS57197937A
JPS57197937A JP8290881A JP8290881A JPS57197937A JP S57197937 A JPS57197937 A JP S57197937A JP 8290881 A JP8290881 A JP 8290881A JP 8290881 A JP8290881 A JP 8290881A JP S57197937 A JPS57197937 A JP S57197937A
Authority
JP
Japan
Prior art keywords
circuits
resonating circuits
block filter
parallel
series
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
JP8290881A
Other languages
Japanese (ja)
Other versions
JPS615300B2 (en
Inventor
Yoichi Isobe
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 Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP8290881A priority Critical patent/JPS57197937A/en
Publication of JPS57197937A publication Critical patent/JPS57197937A/en
Publication of JPS615300B2 publication Critical patent/JPS615300B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/54—Systems for transmission via power distribution lines
    • H04B3/56—Circuits for coupling, blocking, or by-passing of signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5462—Systems for power line communications
    • H04B2203/5491—Systems for power line communications using filtering and bypassing

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Filters And Equalizers (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

PURPOSE:To obtain a power line carrier block filter free of a decrease in attenuation degree due to common-use impedance by mounting series resonating circuits and capacitors for parallel resonating circuits on the same printed board separately as two systems without connecting them in common on the board. CONSTITUTION:The block filter constituent parts of a single-phase three-wire circuit, namely, series resonating circuits 41 and 42 and capacitors C1, C2 and C3 for parallel resonating circuits are separated, and connected to power source side terminals of elements L1-L3 outside of a printed board 1 (L6-C6 and C7- R2; circuits for bypassing of out-of-phase carrier signals) by individual lead lines. Therefore, there is not any distributed inductance that the series resonating circuits 41 and 42 and parallel resonating circuits 31, 32 and 33 share, and high- efficiency attenuation characteristics are obtained without a decrease in attenuation degree, so that the leakage of a carrier frequency signal to an external power line is prevented securely.
JP8290881A 1981-05-30 1981-05-30 Block filter Granted JPS57197937A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8290881A JPS57197937A (en) 1981-05-30 1981-05-30 Block filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8290881A JPS57197937A (en) 1981-05-30 1981-05-30 Block filter

Publications (2)

Publication Number Publication Date
JPS57197937A true JPS57197937A (en) 1982-12-04
JPS615300B2 JPS615300B2 (en) 1986-02-17

Family

ID=13787348

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8290881A Granted JPS57197937A (en) 1981-05-30 1981-05-30 Block filter

Country Status (1)

Country Link
JP (1) JPS57197937A (en)

Also Published As

Publication number Publication date
JPS615300B2 (en) 1986-02-17

Similar Documents

Publication Publication Date Title
CA2036758A1 (en) Sub power plane to provide emc filtering for vlsi devices
JPS57130842A (en) Electronic system for mounting on vehicle
EP0396123A3 (en) Parallel connection multi-stage band-pass filter
JPS6449303A (en) Wide band mixer
JPS56137598A (en) Sample hold circuit
GB1506633A (en) Electrical isolating circuits
NL301922A (en)
JPS57197937A (en) Block filter
EP0281371A3 (en) Band-pass filter
DE3686423D1 (en) ALLPASS CIRCLE SECOND ORDER.
GB1371343A (en) Filter circuit with gyrators and capacitors
SE8703913A (en)
GB1515080A (en) Electromechanical filters
JPS57194611A (en) Branching and coupling circuit
JPS5484451A (en) Coupling circuit
JPS6472612A (en) Noise filter
ES8502829A1 (en) Circuit for coupling a three terminal filter to a signal path using one interface connection
GB1075120A (en) Electronic switching device
EP0321153A3 (en) Cancelling circuit and transmission system
JPS5789345A (en) Semiconductor integrated circuit device
JPS5739610A (en) Broadband ccd delay line
JPS57193111A (en) Filter circuit
JPS6424616A (en) Power output transistor high frequency high
JPS6416197A (en) Time detecting system
JPS56165411A (en) Equalizer amplifier