The conversation between human and AI assistant.
How is the Miller effect used in frequency modulation? How is the capacitance varied with input though the gain of the amplifier is constant?
How is the capacitance varied with input though the gain of the amplifier is constant?
The capacitance can be varied through the use of varactor diodes, which change their capacitance in response to a varying DC voltage applied to them. By connecting a varactor diode in parallel with a fixed capacitor, the effective capacitance can be varied with input voltage while the gain of the amplifier remains constant.