Electrical

Uploaded on

13 Jun 2023

Skill-Lync

**Combinational logic circuits**

Logic gates are the simplest combinational circuits. A combinational logic circuit is a circuit whose outputs only depend on the current state of its inputs. These circuits realize Boolean functions and deal with digitized signals, usually denoted by 0s and 1s.

The behavior of a combinational circuit is memoryless; given a stimulus to the input of a combinational circuit, a response appears at the output after some propagation delay, but the response is not stored or fed back. The output depends solely on its most recent input and is independent of the circuit’s past history.

There are three basic logic gates-

- AND
- OR
- NOT

The universal logic gates are-

- NAND
- NOR

Let us try implementing combinational circuits in Simulink.

**Example:1**

For the expression -

Here,

- Q is the output.
- A, B, and C are the inputs that take the binary values of 0 and 1.
- The bar represents the complement of itself. The complement of 0 is 1, and vice versa.
- The product represents the AND operation; the addition represents the OR operation.

**Steps of solving:**

- Write the truth table. If the number of states is n, then the output calculated is 2^n. Here there are three states, A, B, and C the total output that can be realized is 2^3=8.

- Realize the number of gates required. This particular example can be solved in different ways. To make it simpler, we will use NAND, XOR, and AND gates.
- The complement of (A.B) can be realized using the NAND gate directly. (A+B) complement can be performed using the XOR gate.
- The Simulink model for the logic gate implementation is given below.

*When, A=0, B=0, C=1*

*When A=1, B=1, C=1*

**Example:2**

For the expression- **F=(A.B)+(A.B’)**

1) Truth table

2. For this equation, we have chosen two AND gates, one Not gate to represent B complement, and an OR gate.

3. Simulink model for the logic gate implementation is given below

**For A=1, B=1**

**For, A=0, B=1**

**Thus the logic gates for the combinational circuits have been computed. **

Author

Navin Baskar

Author

Skill-Lync

Subscribe to Our Free Newsletter

Continue Reading

**Related Blogs**

Electric PowerTrain for Two Wheelers

The average vehicle body gives any vehicle its structural integrity, while the electric motor is concerned with the generation of torque or force. The electric motor can be a permanent magnet synchronous motor, brushless dc motor etc.

Electrical

25 Aug 2022

How To Tune PID Controllers for Converter Feedback

In industrial control applications, a PID controller is a device that regulates temperature, flow, pressure, speed, and other process variables. PID (proportional integral derivative) controllers, which use a control loop feedback mechanism to control process variables, are the most accurate and trustworthy controllers.

Electrical

27 Aug 2022

Pulse Charging of Lithium Ion Battery

A lithium-ion (Li-ion) battery is a complicated battery technology that uses lithium ions as a key component of its electrochemistry. During a discharge cycle, lithium atoms within the anode are ionized and separated from their electrons.

Electrical

29 Aug 2022

A Guide on the Dashboard Library Blockset

Dash in your car is your source of information. It basically functions as a control panel that sits in front of the driver and shows numerous controls and instrumentation required for your car to function.

Electrical

01 Sep 2022

All About Series Hybrid Vehicles

A hybrid vehicle has two power sources for motion within the same vehicle. Basically the hybrid vehicle is split into two types supported the source for propulsion - combustion engine type and Hydrogen power cell.

Electrical

07 Sep 2022

Author

Skill-Lync

Subscribe to Our Free Newsletter

Continue Reading

**Related Blogs**

Electric PowerTrain for Two Wheelers

The average vehicle body gives any vehicle its structural integrity, while the electric motor is concerned with the generation of torque or force. The electric motor can be a permanent magnet synchronous motor, brushless dc motor etc.

Electrical

25 Aug 2022

How To Tune PID Controllers for Converter Feedback

In industrial control applications, a PID controller is a device that regulates temperature, flow, pressure, speed, and other process variables. PID (proportional integral derivative) controllers, which use a control loop feedback mechanism to control process variables, are the most accurate and trustworthy controllers.

Electrical

27 Aug 2022

Pulse Charging of Lithium Ion Battery

A lithium-ion (Li-ion) battery is a complicated battery technology that uses lithium ions as a key component of its electrochemistry. During a discharge cycle, lithium atoms within the anode are ionized and separated from their electrons.

Electrical

29 Aug 2022

A Guide on the Dashboard Library Blockset

Dash in your car is your source of information. It basically functions as a control panel that sits in front of the driver and shows numerous controls and instrumentation required for your car to function.

Electrical

01 Sep 2022

All About Series Hybrid Vehicles

A hybrid vehicle has two power sources for motion within the same vehicle. Basically the hybrid vehicle is split into two types supported the source for propulsion - combustion engine type and Hydrogen power cell.

Electrical

07 Sep 2022

Book a Free Demo, now!

Related Courses

4.9

513 Hours of content

Electrical Domain

Showing 1 of 1 courses