What is Transistor Transistor Logic (TTL) Circuit? Texas instruments introduced transistor transistor logic (TTL), a widely used family of digital devices in 1964. It is fast, inexpensive and easy to…
What is Diode Transistor Logic (DTL) Circuit? Diode Transistor Logic (DTL) is also a saturated logic and uses diodes, resistors and transisÂtors. The circuit diagram is shown in Fig. 47.2.…
Conversion of Hybrid Parameters in Transistor Three Configurations: Some transistor manufacturers provide only the four CE hybrid parameters while others provide CB hybrid parameters. Sometimes, for a specific purpose, it…
Variations of Hybrid Parameters of a Transistor: The variation of h parameters depends upon junction temperature, collector current and collector-to-emitter voltage VCE. Among these factors, the variations of Hybrid Parameters…
Transistor Hybrid Model: The basic assumption in arriving at a transistor linear model or equivalent circuit is that the variations about the operating or quiescent point are small and, therefore,…
Hybrid Parameters of Transistor or h Parameters and Hybrid Model: A box representing a two-port network is illustrated in Fig. 11.1. The terminal behavior of a two-port device may be…
Transistor approximation (Ideal, Second and Higher): An NPN transistor is shown in Fig. 10.71 (a). Voltage appearing across the emitter diode is denoted by VBE and that appearing across the…
How to use a Transistor as a Diode - Working and Equation: The transistor can be modified to operate as a diode by short circuiting the two transistor terminals, as…