Nothing Special   »   [go: up one dir, main page]

JPS5644214A - Low-pass filter device - Google Patents

Low-pass filter device

Info

Publication number
JPS5644214A
JPS5644214A JP12107579A JP12107579A JPS5644214A JP S5644214 A JPS5644214 A JP S5644214A JP 12107579 A JP12107579 A JP 12107579A JP 12107579 A JP12107579 A JP 12107579A JP S5644214 A JPS5644214 A JP S5644214A
Authority
JP
Japan
Prior art keywords
constant
current
circuit
capacitor
transistor
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
JP12107579A
Other languages
Japanese (ja)
Other versions
JPS6133415B2 (en
Inventor
Kazumi Kawashima
Minoru Ueda
Sadahiro Takuhara
Hirosuke Yamamoto
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 JP12107579A priority Critical patent/JPS5644214A/en
Publication of JPS5644214A publication Critical patent/JPS5644214A/en
Publication of JPS6133415B2 publication Critical patent/JPS6133415B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks

Landscapes

  • Networks Using Active Elements (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

PURPOSE:To improve the rise characteristic, by making the load into a constant- current circuit to make the charging characteristic linear. CONSTITUTION:The load of transistor 17 is made into constant-current circuit 18 to make the charging characteristic linear. A complementary compensating circuit is constituted with transistors 19 and 20, and current values of constant-current circuits 21 and 22 of their loads are equalized approximately, and voltage amplification factor hfe of transistor 19 is controlled to improve the temperature compensation characteristic. A feedback loop is provided in smoothing circuit 24 by capacitor 23 to form an active filter. Further, a filter is constituted with resistance 25 and capacitor 26 to form a device so that higher harmonic components may be eliminated.
JP12107579A 1979-09-20 1979-09-20 Low-pass filter device Granted JPS5644214A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12107579A JPS5644214A (en) 1979-09-20 1979-09-20 Low-pass filter device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12107579A JPS5644214A (en) 1979-09-20 1979-09-20 Low-pass filter device

Publications (2)

Publication Number Publication Date
JPS5644214A true JPS5644214A (en) 1981-04-23
JPS6133415B2 JPS6133415B2 (en) 1986-08-01

Family

ID=14802219

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12107579A Granted JPS5644214A (en) 1979-09-20 1979-09-20 Low-pass filter device

Country Status (1)

Country Link
JP (1) JPS5644214A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4500828A (en) * 1982-05-24 1985-02-19 Nissan Motor Company, Limited AC Generator
JPS6041810A (en) * 1983-08-17 1985-03-05 Toshiba Corp Active low-pass filter
US7850891B2 (en) 2005-06-20 2010-12-14 Sony Corporation Method of manufacturing suction cup

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4500828A (en) * 1982-05-24 1985-02-19 Nissan Motor Company, Limited AC Generator
JPS6041810A (en) * 1983-08-17 1985-03-05 Toshiba Corp Active low-pass filter
US7850891B2 (en) 2005-06-20 2010-12-14 Sony Corporation Method of manufacturing suction cup
US8196790B2 (en) 2005-06-20 2012-06-12 Sony Corporation Method of manufacturing suction cup, suction cup, and on-vehicle apparatus

Also Published As

Publication number Publication date
JPS6133415B2 (en) 1986-08-01

Similar Documents

Publication Publication Date Title
JPS5644214A (en) Low-pass filter device
JPS54136261A (en) Current inversion circuit
JPS5717205A (en) Operational amplifier
JPS54156153A (en) Temperature compensating constant voltage circuit
JPS555559A (en) Integrated circuit
JPS5710462A (en) Current difference detection circuit
JPS5445770A (en) Stabilized power supply
JPS5527763A (en) Push-pull output circuit
JPS54161305A (en) Ac amplifying device
JPS54154066A (en) Constant-voltage power supply circuit
JPS55112009A (en) Bias circuit
JPS6419417A (en) Constant voltage source circuit
JPS56132006A (en) Differential amplifier
JPS551712A (en) Electronic switch circuit
JPS5630308A (en) Voltage control variable attenuator
JPS5635512A (en) Amplifier
JPS5696307A (en) Constant-current circuit
JPS54122011A (en) Direct-current loop circuit
JPS56143027A (en) Constant current circuit
JPS54101245A (en) Amplifier
JPS5585117A (en) Limiter circuit
JPS54105405A (en) Amplifier for handset
JPS55643A (en) Time constant circuit
JPS5291576A (en) Compensation circuit for power variation
GB871310A (en) Improvements in and relating to oscillator circuits