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    • 19. 发明申请
    • AN AMPLIFICATION CIRCUIT AND AN OSCILLATOR COMPRISING SAID CIRCUIT
    • 放大电路和包含电路的振荡器
    • WO9950953A3
    • 1999-11-18
    • PCT/SE9900535
    • 1999-03-30
    • ASTRA ABMARNFELDT GOERAN
    • MARNFELDT GOERAN
    • H03F3/30H03F3/45H03B5/00
    • H03F3/3001H03F3/45076
    • The invention relates to an amplification circuit, comprising: a differential amplifier (241) having a first input node (236) and a second input node (240) for receiving respectively first and second input signals and an output node for producing an output signal; and active bias circuitry (250) connected to said differential amplifier (241) for drawing a bias current therefrom, wherein said active bias circuitry (250) is configured to draw an increased current when said first and second input signals are substantially equal. An oscillator comprising said amplification circuit and a circuit comprising an oscillator of said type is also part of the invention.
    • 本发明涉及一种放大电路,包括:差分放大器(241),具有用于分别接收第一和第二输入信号的第一输入节点(236)和第二输入节点(240)和用于产生输出信号的输出节点; 以及与所述差分放大器(241)连接以从其中抽出偏置电流的有源偏置电路(250),其中所述有源偏置电路(250)被配置为当所述第一和第二输入信号基本相等时绘制增加的电流。 包括所述放大电路和包括所述类型的振荡器的电路的振荡器也是本发明的一部分。