Practical transistor circuit design and analysis

How does transistor work in circuit diagram?
A transistor can act as a switch or gate for electronic signals, opening and closing an electronic gate many times per second.
It ensures the circuit is on if the current is flowing and switched off if it isn't.
Transistors are used in complex switching circuits that comprise all modern telecommunications systems..
How to design transistor as a switch?
Cut-off Region
1. The transistor is used as an “open switch”
2. The bases and input are grounded (0v)
3. The base emission voltage is VBE \x26gt; 0
4. V
5. The basic emitter is reversed
6. The full-OFF (cut-off area) transistor (“Collector Flow = 0”) • VOUT = VCC = “1′′”
7. No collector current flows (IC = 0)
Cut-off Region
1. The transistor is used as an “open switch”
2. The bases and input are grounded (0v)
3. The base emission voltage is VBE \x26gt; 0
4. V
5. The basic emitter is reversed
6. The full-OFF (cut-off area) transistor (“Collector Flow = 0”) • VOUT = VCC = “1′′”
7. No collector current flows (IC = 0)
The main function of the transistor is to amplify the electric current in a circuit.
In its function as an amplifier, the transistors are fed a low input electric current, amplifying it, and thus it also produces a higher output electric current.
Transistors are used in our day-to-day lives in many forms, which we are aware of as amplifiers and switching apparatuses.
As amplifiers, they are being used in various oscillators, modulators, detectors and nearly any circuit to perform a function.
In a digital circuit, transistors are used as switches.

4.5/5AbeBooks Originally published: 1973Author: Gerald E. Williams

Practical transistor circuit design and analysis

How does transistor work in circuit diagram?

How to design transistor as a switch?

Cut-off Region

Cut-off Region