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Equation for Square law circuit modulator

For DSBFC AM (double side band full carrier Amplitude modulation ) The message signal m(t) must be multiplied by carrier maybe $$ Ac*cos(\omega_c(t)) $$ (For modulation) This modulation is done in reality by using the non-linear characteristics of the diode,where $$ i(t)=av + bv^2 $$ v=applied voltage to diode Here we apply$$ v =Vc(t)+Vm(t)$$ $$ […]