There are 2 ways in which switches are connected with each other.ġ. The electrical circuits containing switches by Boolean expressions, if ON is denoted by true or 1 and OFF is denoted by False or 0. If the switch is open, current will not pass through it.If the switch is closed, current will pass through it.The switch has two states NO or OFF (closed or open) A switch is a device is an electric circuit which lets or does not let the current to flow through the circuit. The simplest switching device is NO-OFF switch. Applications of Boolean Algebra in Switching Theory: We can interconnect these devices to form an electronic circuit that realizes any given Boolean Expression. NOT Gate: A NOT Gate receives input x and produces output y denoted x' as shown in the logic table x OR Gate: An OR gate receives inputs x and y and produces output denoted x V y as shown in the logic table x If x and y are variables, then the basic expressions x ∧ y (AND), x ∨ y (OR) and x' (NOT) are shown graphically as follows:ĪND Gate: An AND gate receives inputs x and y and produces output denoted x ∧ y, as shown in logic table x These logic circuits can be constructed using solid-state devices called gates, which are capable of switching voltage levels. The Boolean expressions can be graphically represented by using logic circuits. Next → ← prev Logic Gates and Circuits: Schematic or Graphical Representation of Boolean Expressions:
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