AM Modulation Principles and Circuits

CHAPTER 2: AMPLITUDE MODULATION

TOPICS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

NEED FOR MODULATION ,[object Object],[object Object],[object Object],[object Object]

PRINCIPLES OF AMPLITUDE MODULATION

PRINCIPLES OF AM ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Figure 2.1: Block diagram of Amplitude Modulation Information, V m (t) Carrier, V c (t) Modulator V AM (t)

Figure 2.2 AM signal with the envelope

[object Object],[object Object],[object Object],DERIVATION OF AM EQUATION ,[object Object],[object Object]

[object Object],Using Trigo ID Carrier LSB USB

AM FREQUENCY SPECTRUM & BANDWIDTH ,[object Object],[object Object],[object Object],[object Object]

Figure 2.3: Frequency spectrum for AM wave f c f c + f m f c - f m Bandwidth = 2f m V c V m /2 V m /2

SPECTRUM PARAMETERS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

EXAMPLE 2.1 ,[object Object],[object Object]

EXAMPLE 2.2 ,[object Object],[object Object],[object Object]

AM Modulation Principles and Circuits

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