Demodulation of am envelope detector

Demodulation of am envelope detector

1. Demodulation Of Am_Envelope
detector

LearnByWatch.com [email protected] RKThenua.in

2. Envelobe Detector —

Envelope detector da Used for the demodulation a Am signed
Ik sa Er Simple and cheaber a à
Envelope detects CED) extract +ve envelope al Lu
ok the output.
Envelope dokecter Can be ed fr Esl , rt sp Lathes pe Kris
Rs PLN
t 1

Sant) (LENA
y

applied Signal and produces

Figs. Envelope Dekector
Envelope detector Can be derigned with Ha help à diode # Capacite an Shawn ln

oe
K

3. Fie dis. Je deol
PON — FB — Sc Cs

hart Crest)

pen — RB — OC Copen Cirat)

Agaume the Ampl

a» Fellows —

Cape cio When +=
P>N — FRO SC

3 ED JA a Sinyacidal wave

as Shown An Big.

Now the SER] 3 ED Can be exploinas

ot (Greater than zer)

dE „re Compe’
; Re chould be smell, So that Capacitor chars rapida towards input

P<N

Cape ci) when & =

cae

— RB — Oe

\

We

ii

NA
Y oe
Bye

Y,

Ri

4. Cope) When += ky tp ft
pra > Re SC

Cope civ) when ke tt

5. — For Proper envelope defection Re Should be
Small and Ric Should be Ah

ED input En output
Vin,
Va

Ae [1+ Kent] ore A [1 Kon]
= = Act Ackamık)
Tang Hrough Opa
4 ESS

h

ciy Vim Copan Le

di»