Which of the following is used to vary the frequency of the carrier frequency in accordance with the baseband signal amplitude variations in direct method of FM generation?
A)integrator
B)envelope detector
C)multivibrator
D)voltage controlled oscillators

Question

Quizplus · Accepted Answer

Voltage Controlled Oscillators (VCOs) are used in the direct method of FM generation to vary the frequency of the carrier frequency in accordance with the amplitude variations of the baseband signal. This allows the frequency of the output signal to be directly controlled by the input signal's amplitude, achieving frequency modulation.

Which of the Following Is Used to Vary the Frequency