Voltage transfer characteristics of a resistor-transistor "NOR" gate circuit.

Draw a voltage transfer characteristics (VTC) Vout v.s. Vin of a resistor-transistor "NOR" gate circuit in the figure for  Vin in a range from 0 V to 5 V, given the voltage across forward-biased diode and transistor current gain being 0.7 V and 30, respectively.

 



 

Solution: