Explanation: Fast switching can be achieved, if the transistor is prevented from entering into saturation. In schottky transistor, schottky diode is used to clamp between base and collector. Whenever the base current increases to saturation, the diode conducts. Thus, the base to collector voltage drops to 0.4v (less than VBE(cut-in)=0.5) and the transistor does not enter into saturation . 13. Choose the appropriate value of diode to get a speedy diode from the given values of storage time (n) in sec and forward voltage (V γ).
A. n = 56 , V γ = 0.96
B. n = 100 , V γ = 0.92
C. n = 9 , V γ = 0.85
D. n = 53 , V γ = 0.95
Answer:A
Explanation: Fast switching can be achieved, if the transistor is prevented from entering into saturation. In schottky transistor, schottky diode is used to clamp between base and collector. Whenever the base current increases to saturation, the diode conducts. Thus, the base to collector voltage drops to 0.4v (less than VBE(cut-in)=0.5) and the transistor does not enter into saturation . 13. Choose the appropriate value of diode to get a speedy diode from the given values of storage time (n) in sec and forward voltage (V γ).
A. n = 56 , V γ = 0.96 B. n = 100 , V γ = 0.92 C. n = 9 , V γ = 0.85 D. n = 53 , V γ = 0.95
Explanation: The diode with lowest storage time and lowest forward voltage drop is useful for getting high speed diode to be used in digital integrated circuit. Sanfoundry Global Education & Learning Series – Linear Integrated Circuit.