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    • 5. 发明公开
    • 바이어스 회로
    • 偏置电路
    • KR1020110037862A
    • 2011-04-13
    • KR1020100094159
    • 2010-09-29
    • 가부시키가이샤 엔.티.티.도코모
    • 후쿠다아츠시오카자키히로시나라하시쇼이치
    • H03F1/30H03F1/52
    • H03F1/306H03F3/1935H03F2200/111H03F2200/18H03F2200/451H03F2200/75
    • PURPOSE: A bias circuit is provided to supply DC voltage and/or DC current to an active device simultaneously in plural frequency bands by properly setting up a reactance value of each component included in a bias circuit. CONSTITUTION: A bias circuit comprises a bias supply terminal(800), a parallel capacitor(3) and a parallel circuit. One end of the parallel capacitor is connected to the bias supply terminal, and the other end of the parallel capacitor is grounded. The parallel circuit is connected to the parallel capacitor in parallel. The one end of the parallel circuit is connected to the bias supply terminal. The parallel circuit includes a DC power connection terminal(600), N number of parallel inductors and N-1 number of serial oscillators. Each serial oscillator includes an oscillating capacitor and a resonance inductor.
    • 目的:提供偏置电路,通过适当设置偏置电路中包含的每个分量的电抗值,在多个频带中同时向有源器件提供直流电压和/或直流电流。 构成:偏置电路包括偏置电源端子(800),并联电容器(3)和并联电路。 并联电容器的一端连接到偏置电源端子,并联电容器的另一端接地。 并联电路并联连接到并联电容器。 并联电路的一端连接到偏置电源端子。 并联电路包括直流电源连接端子(600),N个并联电感器和N-1个串联振荡器。 每个串行振荡器包括一个振荡电容和一个谐振电感。
    • 6. 发明公开
    • 지상파 튜너의 부스터회로
    • 地波调谐器的输入电路
    • KR1020080026968A
    • 2008-03-26
    • KR1020060092262
    • 2006-09-22
    • 엘지이노텍 주식회사
    • 최석동
    • H04N5/50
    • H03F3/191H03F2200/114H03F2200/165H03F2200/216H03F2200/225H03F2200/237H03F2200/391H03F2200/451H03F2200/75H03H5/02H04B1/10H04B1/18
    • A booster circuit for a terrestrial tuner is provided to attenuate or block the intensity of a signal previously through a rejection filter before the signal with a strong input intensity is amplified by a booster when the unnecessary strong intensity of signal is inputted except a broadcasting channel signal received through an antenna, thereby preventing interference between the unnecessary signal and the broadcasting channel signal and an oscillator killing phenomenon. A booster circuit for a terrestrial tuner comprises a loop-through(20), a citizen band filter(21), a rejection filter(22) and a booster(23). The loop-though outputs a broadcasting channel signal inputted from an antenna(ANT) to other devices. The citizen band filter removes a citizen band signal from a broadcasting channel signal inputted through an antenna. The rejection filter attenuates a frequency band in which there is no broadcasting signal in the broadcasting channel signal. The booster amplifies the broadcasting channel signal outputted from the rejection filter.
    • 提供用于地面调谐器的升压电路,用于当除了广播信道信号之外输入不必要的强强度信号时,在具有强输入强度的信号被强制放大之前通过抑制滤波器衰减或阻挡先前通过抑制滤波器的信号的强度 通过天线接收,从而防止不必要的信号与广播信道信号之间的干扰和振荡器杀死现象。 用于地面调谐器的升压电路包括环路(20),公民带滤波器(21),拒绝滤波器(22)和增强器(23)。 环路输出将从天线(ANT)输入的广播信道信号输出到其他设备。 公民频带滤波器从通过天线输入的广播频道信号中去除公民频带信号。 抑制滤波器衰减广播信道信号中没有广播信号的频带。 增强放大器放大从拒绝滤波器输出的广播频道信号。