clliping of a simple led transmitter

  1. can somebody help me with why the output of the below cct link with LED transmitting 2MHz RF is clipping. Or

  2. This is my design

Vcc=10V, Vf(for LED)=1.5V. taking Vce=Ve=(10-1.5)/2=4.25V, Vbe=0.7V. Ic=If=Ie=50mA beta=200, Ib=Ic/beta=0.25mA. Re=Ve/Ie=85ohms.

R2=Vb/Ib=19.8k . Vb=Vcc*R2/(R1+R2) voltage divider where R1=19.4k.

if not correct need help from some one.

Thanks

by nurafalalu
July 05, 2013

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