15.9 PRODUCTION OF AMPLITUDE MODULATED WAVE
Chapter 8: Chapter 15 · PHYSICS PART-2 · EN medium
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Amplitude modulation can be produced by a variety of methods. A conceptually simple method is shown in the block diagram of Fig. . . FIGURE . Block diagram of a simple modulator for obtaining an AM signal. Here the modulating signal Am sin ,mt is added to the carrier signal Ac sin ,ct to produce the signal x (t). This signal x (t) = Am sin,mt + Ac sin,ct is passed through a square law device which is a non-linear device which produces an output y (t) = B x (t) + Cx (t ) ( . ) where B and C are constants. Thus, y (t)= BAm sin ,mt + BAc sin ,ct sin sin sin sin c c c c
📖 NCERT Class 12 Physics Part 2 · Page 221
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Amplitude modulation can be produced by a variety of methods. A conceptually simple method is shown in the block diagram of Fig. . .
FIGURE . Block diagram of a simple modulator for obtaining an AM signal. Here the modulating signal Am sin ,mt is added to the carrier signal Ac sin ,ct to produce the signal x (t). This signal x (t) = Am sin,mt + Ac sin,ct is passed through a square law device which is a non-linear device which produces an output y (t) = B x (t) + Cx (t ) ( .
) where B and C are constants. Thus, y (t)= BAm sin ,mt + BAc sin ,ct sin sin sin sin c c c c
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