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木文提出了一种用场效应晶体管和双极型晶体管的互补型复合跟随器构成高Q模拟电感电路和低耗电容倍增器的新方案。这种电感电路和电容倍增器与以往的相比,它们具有电路简单、只用一组电源、温度特性可以互补、适于制作低频段的高感值电感电路和低耗电容倍增器(由于复合跟随器输入阻抗高)等优点。文中分析了这种模拟电感电路和低耗电容倍增器的工作原理;找出了模拟电感电路的Q与ω(角频率)、Q与r(补偿电阻);电容倍增器的Q与r、ξ(电容倍增系数)与r、R_6(损耗电阻)与r的关系;同时还介绍了这种模拟电感电路和电容倍增器的设计方法;并进行了实验验证。最后,导出了这种模拟电感电路的Q值灵敏度的表达式,给出了这种模拟电感电路应用的例子。
Mu Wen proposed a new scheme of constructing a high-Q analog inductor circuit and a low-power capacitor multiplier by using a complementary compound follower of a field-effect transistor and a bipolar transistor. Compared with the past, the inductor circuit and the capacitor doubler have the advantages of simple circuit, only one set of power supply, and complementary temperature characteristics, and are suitable for making low inductance high inductance circuits and low capacitance multipliers (due to Composite follower input impedance high) and so on. In this paper, the working principle of the analog inductor circuit and the low-dissipation capacitor doubler is analyzed. The Q and ω (angular frequency), Q and r (compensation resistor) of the analog inductor circuit are found out. The Q and r, ξ (capacitance multiplication factor) and r, R_6 (loss resistance) and r; Also introduced the design method of this kind of simulation inductance circuit and capacitance multiplier; And carried on the experiment verification. Finally, the expression of the Q-value sensitivity of the analog inductor circuit is derived, and an example of the application of this analog inductor circuit is given.