KR930011409A - High Pass Filter - Google Patents

High Pass Filter Download PDF

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Publication number
KR930011409A
KR930011409A KR1019910020948A KR910020948A KR930011409A KR 930011409 A KR930011409 A KR 930011409A KR 1019910020948 A KR1019910020948 A KR 1019910020948A KR 910020948 A KR910020948 A KR 910020948A KR 930011409 A KR930011409 A KR 930011409A
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KR
South Korea
Prior art keywords
frequency
input terminal
pass filter
signal
high pass
Prior art date
Application number
KR1019910020948A
Other languages
Korean (ko)
Other versions
KR940007976B1 (en
Inventor
연상흠
Original Assignee
김광호
삼성전자 주식회사
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Application filed by 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019910020948A priority Critical patent/KR940007976B1/en
Publication of KR930011409A publication Critical patent/KR930011409A/en
Application granted granted Critical
Publication of KR940007976B1 publication Critical patent/KR940007976B1/en

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46—Filters

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  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Networks Using Active Elements (AREA)

Abstract

이 발명에 따른 하이패스 필터는 주파수 신호 입력단(Vin)의 신호 입력에 따라 K의 증폭도를 갗는 신호 감쇄수단(1O)과, 상기 신호 감쇄수단(1O)의 감쇄된 신호를 증폭시키기 위한 gm의 증폭도를 갖는 트랜스 콘덕턴스 앰프(20)의 상기 트랜스 콘덕터스 앰프(20)의 출력을 상기 트랜스 콘덕턴스 앰프(20)의 부입력단자에 전달하기 위한 전압버퍼(30)로 구성되어 전달함수를 만족하는 1차 고역강조의 주파수 응답 특성을 얻을 수 있도록 구성되어 있다.The high pass filter according to the present invention has a signal attenuation means 10 for subtracting the amplification degree of K according to the signal input of the frequency signal input terminal Vin, and an amplification degree for gm for amplifying the attenuated signal of the signal attenuation means 10. A voltage buffer 30 for transmitting the output of the transconductance amplifier 20 of the transconductance amplifier 20 to the negative input terminal of the transconductance amplifier 20 to satisfy the transfer function It is configured to obtain the frequency response characteristics of the first high-frequency emphasis.

상기 전달함수 T(S) = S+K ·(gm/c)/S+(gm/c)과 같다.The transfer function T (S) = S + K · (g m / c) / S + (g m / c) is the same.

따라서, 시정수값(t) 설정에 필요한 외부 구성소자를 제거하고 내부소자에 의해서 원칩화하여 오디오 주파수대역의 1차 고역 강조 주파수 응답특성에 필요한 동등한 주파수 응답 특성을 구현할 수 있다.Therefore, the external components required for setting the time constant t can be removed and one-chipd by the internal components to implement the equivalent frequency response characteristics required for the first high-frequency emphasis frequency response characteristics of the audio frequency band.

Description

하이패스 필터(High Pass Filter)High Pass Filter

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 이 발명에 따른 하이패스 필터의 개략 구성도.1 is a schematic configuration diagram of a high pass filter according to the present invention.

Claims (4)

오디오 주파수 대역의 1차 고역강조 주파수 응답 특성을 얻기위한 하이패스 필터에 있어서, 주파수 신호입력단(Vin)의 신호 입력에 따라 K의 증폭도를 갖는 신호 감쇄수단(10)과, 상기 신호 감쇄수단(10)의 감쇄된 신호를 증폭시키기 위한 gm의 증폭도를 갖는 트랜스 콘덕턴스(20)의 출력을 상기 트랜스 콘덕턴스 앰프의 부입력단자에 전달하기 위한 전압 버퍼(30)와 신호 입력단과 트랜스 콘덕턴스 출력단에 연결된 캐패시터 수단으로 구성되어 전달함수를 만족하는 주파수 응답 특성을 갖는 하이패스 필터.A high pass filter for obtaining a first order high frequency boost frequency response characteristic of an audio frequency band, comprising: a signal attenuation means (10) having an amplification degree of K in accordance with a signal input of a frequency signal input terminal (Vin), and the signal attenuation means (10) A voltage buffer 30, a signal input terminal and a transconductance output terminal for transmitting the output of the transconductance 20 having an amplification degree of gm for amplifying the attenuated signal to the negative input terminal of the transconductance amplifier. A high pass filter composed of connected capacitor means having a frequency response characteristic satisfying a transfer function. 상기 전달함수 T(S)=S+K ·(gm/c)/S+(gm/c)과 같다.The transfer function T (S) = S + K · (g m / c) / S + (g m / c) is the same. 제1항에 있어서, 상기 전압범퍼(30)의 출력(Vout)은 출력 노드점(c)에서, 상기 전압버퍼(30)와 트랜스 콘덕턴스 앰프(20)의 부입력단자(-)로 각각 피드백되도록 하는 하이패스 필터.The output of the voltage bumper 30 is fed back to the negative input terminal (-) of the voltage buffer 30 and the transconductance amplifier 20 at the output node point c. High pass filter. 제1항에 있어서, 상기 트랜스 콘덕턴스 앰프(20)는 그 출력을 주파수 신호 입력단(Vin)의 입력노드점(A)으로 트랜스 콘덕턴스(10)를 통하여 피드백 되도록 하는 하이패스 필터.2. The high pass filter of claim 1, wherein the transconductance amplifier (20) feeds its output back through the transconductance (10) to an input node point (A) of a frequency signal input terminal (Vin). 제2항 내지 제3항에 있어서, 주파수 신호 입력단(Vin)과 주파수 신호 출력(Vout)은 각각 다음 전달함수 T(S)를 만족하는 하이패스 필터.4. A high pass filter according to claim 2, wherein the frequency signal input terminal (Vin) and the frequency signal output (Vout) each satisfy the next transfer function T (S). 전달함수 T(S)=S+K ·(gm/c)/S+(gm/c)Transfer function T (S) = S + K (g m / c) / S + (g m / c) S:전달곡선, C:전달상수, gm전달 콘덕턴스, K:입력신호 증폭도.S: transfer curve, C: transfer constant, g m transfer conductance, K: input signal amplification. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910020948A 1991-11-22 1991-11-22 High pass filter KR940007976B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910020948A KR940007976B1 (en) 1991-11-22 1991-11-22 High pass filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910020948A KR940007976B1 (en) 1991-11-22 1991-11-22 High pass filter

Publications (2)

Publication Number Publication Date
KR930011409A true KR930011409A (en) 1993-06-24
KR940007976B1 KR940007976B1 (en) 1994-08-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910020948A KR940007976B1 (en) 1991-11-22 1991-11-22 High pass filter

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KR (1) KR940007976B1 (en)

Also Published As

Publication number Publication date
KR940007976B1 (en) 1994-08-31

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