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    • 2. 发明授权
    • 동조회로
    • KR100396629B1
    • 2003-12-01
    • KR1019970704378
    • 1996-01-11
    • 이케다 타케시
    • 이케다타케시오헤타다타카나카니시츄토무
    • H03H11/12
    • H03H11/1217H03H11/1291H03H11/20H03H11/481H03H11/483H03H11/485H03H2210/012H03H2210/015H03H2210/026H03H2210/028
    • A tuning circuit which has a wide tuning bandwidth. The tuning bandwidth of the tuning frequency can be easily changed. The tuning circuit (1) is composed of two cascade-connected tuning amplifier sections (2 and 3). Each of the sections (2 and 3) is provided with cascade-connected phase-shifting circuits (10C and 30C), a voltage dividing circuit (60), and an adding circuit composed of a feedback resistor (70) and an input resistor (74). Prescribed tuning operation is performed by shifting the phase of a prescribed frequency by 360 DEG by means of the phase shifting circuits (10C and 30C) and setting the open loop gain of a feedback loop at less than (1) when the output of the voltage dividing circuit (60) is feedback. The resistance ratio between the feedback resistor (70) and input resistor (74) of each tuning amplifier section is adjusted in order that the maximum damping of each tuning amplifier section becomes smaller and the tuning bandwidth of each amplifier section becomes wider. Therefore, since the tuning amplifier sections are cascade-connected, the maximum damping is increased and the tuning bandwidth is widened as a whole.
    • 具有宽调谐带宽的调谐电路。 调谐频率的调谐带宽可以很容易地改变。 调谐电路(1)由两个级联连接的调谐放大器部分(2和3)组成。 每个部分(2和3)设置有级联连接的相移电路(10C和30C),分压电路(60)以及由反馈电阻器(70)和输入电阻器(70)组成的加法电路 74)。 规定的调谐操作是通过利用移相电路(10C和30C)将规定频率的相位移动360°并将反馈回路的开环增益设置为小于(1)当电压输出 除法电路(60)被反馈。 调节每个调谐放大器部分的反馈电阻器(70)和输入电阻器(74)之间的电阻比,以便每个调谐放大器部分的最大阻尼变得更小并且每个放大器部分的调谐带宽变得更宽。 因此,由于调谐放大器部分是级联连接的,因此最大阻尼增大,调谐带宽整体变宽。 <图像>
    • 3. 发明授权
    • 동조회로
    • KR100396630B1
    • 2003-12-01
    • KR1019970704701
    • 1996-01-11
    • 이케다 타케시
    • 이케다타케시오헤타다타카나카니시츄토무
    • H03H11/04
    • H03H11/20H03H11/04H03H11/1291H03H11/481H03H11/485
    • A tuning circuit which has a wide tuning bandwidth. The tuning bandwidth or the tuning frequency can be easily changed. The tuning circuit (1) is imposed of two cascade-connected tuning amplifier sections (2 and 3). Each of the sections (2 and 3) is provided with cascade-connected phase-shifting circuits (10C and 30C), a noninverting circuit (50), a voltage dividing circuit (160), and an aadding circuit composed of a feedback resistor (70) and an input resistor (74). Prescribed tuning operation is performed by shifting the prescribed frequency 360 DEG by means of the phase shifting circuits (10C and 30C) and setting the open loop gain of a feedback loop at less than 1 when the output of the voltage dividing circuit (160) is feedback. The resistance ratio between the feedback resistor (70) and the input resistor (74) of each section (2, 3) is adjusted so that the maximum damping of each section (2, 3) may become smaller and the tuning bandwidth of each section (2, 3) becomes wider. Therefore, since the two tuning amplifier sections are cascade-connected, the maximum damping is increased and thetuning bandwidth is widened as a whole.
    • 具有宽调谐带宽的调谐电路。 调谐带宽或调谐频率可以很容易地改变。 调谐电路(1)由两个级联连接的调谐放大器部分(2和3)组成。 每个部分(2和3)设置有级联连接的相移电路(10C和30C),非反相电路(50),分压电路(160)以及由反馈电阻器 70)和输入电阻器(74)。 当分压电路(160)的输出为低电平时,利用移相电路(10C和30C)移动规定的频率360°并将反馈回路的开环增益设置为小于1来执行规定的调谐操作 反馈。 调节每个部分(2,3)的反馈电阻器(70)和输入电阻器(74)之间的电阻比,使得每个部分(2,3)的最大阻尼可以变小,并且每个部分 (2,3)变宽。 因此,由于两个调谐放大器部分是级联连接的,因此最大阻尼增大并且调谐带宽总体上变宽。 <图像>
    • 4. 发明公开
    • 동조회로
    • KR1019980701312A
    • 1998-05-15
    • KR1019970704701
    • 1996-01-11
    • 이케다 타케시
    • 이케다타케시오헤타다타카나카니시츄토무
    • H03H11/04
    • 넒은 동조대역폭을 갖고 있으며, 동조대역폭 혹은 동조주파수를 용이하게 변경할 수 있는 동조회로를 제공하는 것을 목적으로 하며, 동조회로(1)는 종속접속된 2개의 동조증폭부(2, 3)로 구성되어 있다. 각 동조증폭부(2, 3)는 종속접속된 이상회로(10C, 30C), 비반전회로(50) 및 분압회로(160)와, 귀환저항(70) 및 입력저항 (74)으로 이루어진 가산회로를 포함하여 구성되어 있으며, 2개의 이상회로(10C, 30C)의 전체에 의해 소정의 주파수에 있어서 360°의 위상 쉬프트가 행하여지며, 분압회로(160)의 출력을 귀환시켰을 때의 귀환루프의 오픈루프 이득을 1 이하로 설정함으로써 소정의 동조동작이 행하여진다. 각 동조증폭부의 귀환저항(70)과 입력저항(74)의 저항비를 조정함으로써 각 동조증폭부의 최대 감쇠량이 적고, 그리고 동조대역폭이 넓어지며, 이와 같은 2개의 동조증폭부를 종속접속함으로써, 전체의 최대 감쇠량이 크고, 그리고 동조대역폭을 넓게 설정할 수 있다.