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    • 10. 发明申请
    • VOLTAGE CONTROL OSCILLATOR AND OSCILLATION CONTROL SYSTEM
    • 电压控制振荡器和振荡控制系统
    • US20080309423A1
    • 2008-12-18
    • US12137776
    • 2008-06-12
    • Nobuyuki ITOHChiharu Nakajima
    • Nobuyuki ITOHChiharu Nakajima
    • H03B5/12
    • H03B5/1228H03B5/1215H03B5/1243H03B5/1293
    • A voltage control oscillator has a first MOS transistor having one end connected to a first potential; a second MOS transistor having one end connected to the first potential, a gate connected to an other end of the first MOS transistor, and an other end connected to a gate of the first MOS transistor; a first varactor having one end connected to the other end of the first MOS transistor, an other end connected to the other end of the second MOS transistor, and a capacitance changing with a first control voltage; a first inductor having one end connected to the one end of the first varactor; a second inductor having one end connected to the other end of the first varactor; a second varactor having one end connected to an other end of the first inductor, an other end connected to an other end of the second inductor, and a capacitance changing with a second control voltage; a third inductor connected between the one end of the second varactor and a second potential; and a fourth inductor connected between the other end of the second varactor and the second potential.
    • 电压控制振荡器具有一端连接到第一电位的第一MOS晶体管; 第一MOS晶体管,其一端连接到第一电位,栅极连接到第一MOS晶体管的另一端,另一端连接到第一MOS晶体管的栅极; 第一变容二极管,其一端连接到第一MOS晶体管的另一端,另一端连接到第二MOS晶体管的另一端,并且电容随着第一控制电压而变化; 第一电感器,其一端连接到第一变容二极管的一端; 第二电感器,其一端连接到第一变容二极管的另一端; 第二变容二极管,其一端连接到所述第一电感器的另一端,另一端连接到所述第二电感器的另一端,并且电容随着第二控制电压而变化; 连接在所述第二变容二极管的一端和第二电位之间的第三电感器; 以及连接在所述第二变容二极管的另一端和所述第二电位之间的第四电感器。