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tunnel effect
Normally charge carriers cross the potential junction by falling through the potential curve.
sometimes when the doping level is very high, the potential barrier is too thin to prevent the charge carriers from tunnelling through. when this tunnelling happens the charge carriers...
gsm based projects
that article was good.:)
in that he uses an gps receiver & a gsm module.
cannot we do a sort of crude thing which uses only the gps module with the gsm module, instead of using the gps receiver.
that would cut the costs, a BIG criterion for students projects in INDIA. 8)...
help in gps
i am planning to do a remote object tracker.
provided i have an gps receiver module how do i start.
please help me in this.i plan to have the entire project for discussion in this forum.
8)
large signal is a signal whose magnittude drives the transistor operating in the linear active region to the non-linear region(i.e the saturation region or the cut-off region).
generally small signal amplifiers/ devices are the first stages of any system be it a communication system/a sensory...
Re: adc
:)
adc convertor converts continous voltage to discrete levels & then does some sort of coding(BCD, Binary,etc) to make it ready to use.
a ADC consists of a dac(digital to analogue coverter) yes , it is true.
one of the most used methods use a comparater,counter and a DAC.
The...
bjt back injection
basically bjt is a active device that operates due to minority charge carriers.
the emitter of a base is highly doped followed by collector. the base is very thin & is very lightly doped.
when a forward bias voltage is applied to a emitter the majority charge carriers cross...
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