JPS5530283A - Mechanical filter - Google Patents

Mechanical filter

Info

Publication number
JPS5530283A
JPS5530283A JP10421378A JP10421378A JPS5530283A JP S5530283 A JPS5530283 A JP S5530283A JP 10421378 A JP10421378 A JP 10421378A JP 10421378 A JP10421378 A JP 10421378A JP S5530283 A JPS5530283 A JP S5530283A
Authority
JP
Japan
Prior art keywords
capacitor
transformer
terminal
coil
mechanical
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
JP10421378A
Other languages
Japanese (ja)
Inventor
Tamio Yamada
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.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Seiko Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP10421378A priority Critical patent/JPS5530283A/en
Publication of JPS5530283A publication Critical patent/JPS5530283A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46Filters

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

PURPOSE:To attain mathcing with a low-impedance load by connecting a capacitor between a transformer and mechanical resonator and then by connecting a coil to a transformer terminal opposing to the terminal to which the mechanical filter is connected. CONSTITUTION:The output terminal of mechanical resonator B is connected via capacitor C03 to the input terminal of transformer Trs2, whose output terminal is connected to a load via coil L0. The capacitor is interposed between the mechanical resonator and transformer and the coil is connected to a terminal different with that connected to the mechanical filter via the capacitor. It is made possible to constitute this unit by using a relative-small capacitor and inductance. Therefore, a capacitor and inductance large in Q can easily be obtained a filter can be obtained which has a little loss on the whole.
JP10421378A 1978-08-25 1978-08-25 Mechanical filter Pending JPS5530283A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10421378A JPS5530283A (en) 1978-08-25 1978-08-25 Mechanical filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10421378A JPS5530283A (en) 1978-08-25 1978-08-25 Mechanical filter

Publications (1)

Publication Number Publication Date
JPS5530283A true JPS5530283A (en) 1980-03-04

Family

ID=14374673

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10421378A Pending JPS5530283A (en) 1978-08-25 1978-08-25 Mechanical filter

Country Status (1)

Country Link
JP (1) JPS5530283A (en)

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