The Engineering Projects

Introduction to MMBD914

Hello everyone! I hope you all will be absolutely fine and having fun. Today, I am going to share my knowledge about Introduction to MMBD914. MMBD 914 is basically a switching diode. A switching diode has the functionality similar to the switch. Like an open switch, MMBD 914 has a high resistance for the particular applied voltage. Switching diodes are usually used in different device e.g. ring modulation. The right switching diode can be chosen keeping in mind our requirements e.g. reverse recovery time, power dissipation and maximum peak current etc. I have also written an article on another switching diode, Introduction to 1N4148, and this my second article on switching diodes. MMBD-914 has a vey wide range of applications including high speed switching, high speed rectification purposes, reverse polarity protection, general purpose switching etc. The further detail about MMBD 914 will be given later in this tutorial.

Introduction to MMBD914

MMBD914 is a switching diode.It has three pins in total. Its maximum reverse voltage is around 100V and forward current is 0.2A. It has different features e.g. quick switching speed, general purpose switching applications, lead (Pb) free and RoHS compliant, halogen and antimony free. It has different applications like reverse polarity protection, general purpose switching, high speed rectification, high speed switching etc. MMBD-914 is shown in the figure below.

1. MMBD914 Pinout

• A properly labeled pin diagram of any device results in better standing of the user.
• I have made a completely labeled diagram of MMBD 914 diode along with its animation.
• The complete pinout diagram along with animation, symbolic representation and the real image of MMBD-914 is shown in the figure below.

2. MMBD914 Symbolic Representation

• The schematic diagram of a device helps us to understand its internal functionality.
• A diode is connected between its 1st and the 3rd pin as show in the figure below.
• I have provided the labeled schematic diagram of MMBD 914 as shown in the figure below.

3. MMBD914 Packages

• MMBD-914 has two different type of packages 3000/Tape and reel and 10000/Tape and reel.
• Both of the packages along with their dimensions and part number are given in the table shown below.

4. MMBD914 Ratings

• The  voltage, current and power ratings of a device displays its power requirement i.e. how much amount of current and voltage is required for its operation.
• I have given MMBD-914 current, power and voltage ratings in the table shown below.

5. MMBD914 Thermal Characteristics

• Thermal characteristics usually include thermal resistance, power dissipation, operating and storage temperature.
• All of these parameters along with their typical values are given in the table below.

6. MMBD914 Features

• There are several different features associated with MMBD 914. A few of the major features are given in the table shown below.

7. MMBD914 Applications

MMBD-914 has different real life applications, a few of which are given below.

• Fast switching.
• General purpose switching.
• High speed rectification.
• Reverse polarity protection.

So, thats all from the tutorial Introduction to MMBD914. I hope you enjoyed this amazing tutorial. If you have any sort of problem, you can ask me in comments, any time you want, without even feeling a bit of hesitation. I will try me level best to sort out your issues in a better way, if possible. Our team is also 24/7 available to help you out. I will explore further IC's and diodes in my upcoming tutorial and will share them with you as well for sure. So, till then, Take Care :)

Introduction to L298

Hello everyone! I hope you all will be absolutely fine and having fun. Today I am going to elaborate you  about Introduction to L298. L-298 is an Integrated Circuit (IC) available in two type of packages now a days which will be given later. L 298 is a dual full bridge driver that has a capability to bear high voltage as well as high current. It receives basic TTL (Transistor Transistor Logic) logic levels and is able to operate the different loads such as DC motors, stepper motors, relays etc. You should also have a look at Introduction to L23D. L-298 has two enable input to control any device by enabling or disabling it. L 298 IC is most commonly used to make motor drivers or motor controllers. These motor controllers can be controlled by any micro controller e.g Arduino, PIC, Raspberry Pi etc. They receives input from micro controllers and operate the load attached to their output terminals correspondingly. L-298 motor driver (H-Bridge) is able to control two different DC motors simultaneously. While it can control a single stepper motor as well. L 298 has two Pulse Width Modulation (PWM) pins. PWM pins are used to control the speed of the motor. By changing the voltage signal's polarity at its input we can rotate the motor in either clockwise or counter clockwise direction. It has a lot of real life applications e.g robotics, doors lock systems, CNC machines etc. You should also have a look at L298D Motor Driver Library for Proteus.

Introduction to L298

L298 is a high current and high voltage IC. Its receives TTL logic signals and operates different loads like motors, solenoid, relays etc. It is mostly used in motor driver's designing. It has two specific pins for enabling or disabling the particular device attached at its output. Its features include low saturation voltage, over temperature protection etc. Its has a lot applications including robotics, automated door lock systems, CNC machines etc. The further detail about L-298 will be given later in this tutorial. You can download L298 Datasheet by clicking below button: Download L298 Datasheet

1. L298 Pinout

• L 298 IC has 15 pins in total, each having different functions associated with them.
• The animated image of L-298 IC is shown in the figure given below.

2. L298 Features

• L-298 has a lot of amazing features including low saturation voltage, over current protection etc.
• Some of the major features are given in the table shown below.

3. L298 Ratings

• The rating of a device displays basically its power requirement for the normal operation of that device under normal circumstances.
• The current, voltage and power ratings of L 298 IC are shown in the table given below.

4. L298 Motor Controller/Driver

• L-298 IC is most commonly used to design motor driver/controller.
• So, now I am going to discuss about L298 motor controller/driver.
• L-298 motor driver or motor controller's image is shown in the figure below.

5. L298 Motor Controller Pinout

• The pinout diagram usually consists of complete pin configuration of a device.
• L-298 motor controller's pinout diagram is shown in the figure given below.

6. L298 Motor Controller Pins

• L 298 motor controller has fourteen (14) pins in total, each having different individual function.
• All of the 14 pins along with the pin number are given in the table shown below.

7. L298 Motor Controller Pin Functions

• L 298 motor controller's each pin has different functions.
• The function associated with each of the pin are given in the table shown below.

8. L298 Motor Controller Schematic Diagram

• The schematic diagram of an equipment shows its internal structure and working flow.
• L-298 motor controller schematic diagram is shown in the figure given below.

9. L298 Motor Controller Interfacing with Arduino & DC Motor

• In order to control the DC motor using Arduino UNO and H-Bridge (L 298 motor controller) first we have to build a proper circuit diagram.
• The complete circuit diagram is shown in the figure given below.

10. DC Motor Control Arduino Source Code

• I have written a simple DC motor direction control source code in Arduino software as shown below.

int dir1PinA = 6;
int dir2PinA = 7;
void setup() { 
 
Serial.begin(9600); // baud rate

lcd.begin(20, 4);

pinMode(dir1PinA,OUTPUT);
pinMode(dir2PinA,OUTPUT); 

}
void loop() {
if (Serial.available() > 0) {
int inByte = Serial.read();

switch (inByte) {

case 'C': // Clockwise rotation
digitalWrite(dir1PinA, LOW);
digitalWrite(dir2PinA, HIGH);
Serial.println("Clockwise rotation"); 
Serial.println("   "); 
break;

case 'S': // No rotation
digitalWrite(dir1PinA, LOW);
digitalWrite(dir2PinA, LOW);
Serial.println("No rotation");
Serial.println("   ");
break;

case 'A': // Clockwise rotation
digitalWrite(dir1PinA, HIGH);
digitalWrite(dir2PinA, LOW);
Serial.println("Anti Clockwise rotation"); 
Serial.println("   "); 
break;
}

• You need to just copy and paste the source code in your Arduino software.
• After uploading it to the Arduino board, you will be able to control the direction of DC motor.
• You can download the circuit diagram and source code here by clicking on the button below.

Download Arduino Source Code

• Download .rar file, extract it and enjoy the package.

11. L298 Motor Controller Applications

L-298 motor controller/driver has several different real life applications, a few of which are given below.

• Robotics.
• Weight lifters.
• CNC machines.
• Automatic door control systems.

12. L298 Motor Driver Simulation in Proteus

• I have also designed a new L298D Motor Driver Library for Proteus. Using this Library you can easily simulate L298 Motor driver in Proteus.
• You can download this driver library by clicking above link.
• Here's a screenshot of how it looks in Proteus:

• You can have a look at How to use L298 in Proteus in below video:

That was the detailed discussion about Introduction to L298. I have shared almost all the important details regarding L 298 IC and motor driver/controller. If you have problem, you can ask us freely anytime you want. Our team is always here to entertain you. I will share a lot of informative topics in my upcoming tutorials. So till then take care :)

Introduction to LT1054

Hello everyone! I hope you all will be absolutely fine and having fun. I am going to elaborate you on Introduction to LT1054. It is a monolithic device. LT-1054 is also known as voltage regulator and bipolar capacitive voltage converter. Its mean feature is that it provides very low voltage losses as compared to the other common converters. LT 1054 also provides large output currents in comparison to general converters. It provides a voltage drop of around 1.1V while operating at 100mA. LT 1054 provides us with a feature of regulation. This feature was not available in earlier voltage converters. We can get a regulated output just by inserting an external resistance. We can shut down LT-1054, if we ground its feedback terminal. Its internal oscillator works at 25kHz frequency. Switching frequency can be adjusted using oscillator terminal. LM-1054 operates on a temperature ranging from 0 degree Celsius to 70 degree Celsius. LM 1054 has several exciting features including external shut down, external oscillator synchronization, low losses, reference & error amplifier for regulation etc. The further detail about LT-1054 will be given later in this article.

Introduction to LT1054

LT1054 is a bipolar, switched capacitor voltage converter or voltage regulator. It is most common in the market now a days due to its amazing features like it provides low voltage losses in comparison to the standard normal converters and also provides higher output current as compared to the earlier voltage converters. LT 1054 provides oscillator synchronization, reference amplifier for regulation. It can be used in voltage regulators, voltage inverters, data acquisition supply etc. LT-1054 is shown in the figure below.

1. LT1054 Pins

• LT 1054 has eight (8) pins in total with a different individual feature.
• All of the 8 pins are listed in the table given below.

2. LT1054 Pin Description

• We can not use any device without even knowing the features associated with its each pin.
• LT-1054 pins function description is given in the table shown below.

3. LT1054 Pinout

• Before using a device we must know its pins configuration, pinoutout diagram helps us in this purpose.
• LT 1054 pinout diagram is shown in the figure below.

4. LT1054 Packages

• Packages just show the earlier and latest model of any device.
• LT-1054 has two types of packages i.e. PDIP (8) and SOIC (16).
• Both of the packages are listed in the table shown below.

5. LT1054 Packages Dimensions

• LT-1054 has two packages, each has different size.
• Both of these packages are shown with their dimension and SI units in the table given below.

6. LT1054 Block Diagram

• Block diagram presents the internal flow of the logic followed by any device.
• LT 1054 block diagram is shown in the figure below.

7. LT1054 Ratings

• The rating of a device or equipment show the how much power is needed to operate this device.
• LT-1054 power, current and voltage, all of these ratings are listed in the table given below.

8. LT1054 Features

• For a special purpose, a device can be identified from its features whether they are suitable for the required task or not.
• LT-1054 has a lot of features, some of them are given in the table shown below.

9. LT1054 Applications

• While purchasing any device we have to mention its application that why we are purchasing this device.
• They play a vital role in the popularity and availability of a device.
• Some of the applications associated with LT-1054 are given in the table shown below.

  The tutorial Introduction to LT1054 has provided the detailed discussion on the use of LT 1054 voltage regulator. I hope you will appreciate my effort. The whole discussion consist of IC's pin, pin functions and description, pin configurations, block diagram, features and applications. If there something missing please let me know so that I could update this article in order to avoid the future inconvenience. In my upcoming tutorials, I will share other informative articles. So, till then take care :)

Introduction to 74HC245

Hello everyone! I hope you all will be absolutely fine and having fun. Today, I am going to share my knowledge about Introduction to 74HC245. 74HC 245 is a eight (8) bit transceiver. It has three (3) output states. 74HC-245 is designed for a-synchronous transfer of data between different data buses. The external timing requirement can be reduced by the implementation of control function. You should also have a look at Introduction to 74HC595. There are two internal amplifiers in 74HS 245. They are named as A and B. Data is transferred from A amplifier to B amplifier and vice versa. Hence two way communication is done in 74HC-245. This communication depends upon the logic level on the direction control input (DIR). Out enable pin (OE) is used to enable and disable the device depending upon the requirements of the task. 74HC-245 has several amazing features e.g. low input current, large input voltage ranges, low power consumption etc. A lot of real life applications are associated with 74HC-245, a few of which are servers, electronic points of sale, telecom infrastructures, network switches, personal computers, notebooks, wearable health devices etc. The further detail about 74HC-245 will be given later in this article.

Introduction to 74HC245

74HC245 is basically and 8-bit transceiver. It has 3 output states. The data can be transferred in both directions depending upon the logic level at direction control (DIR). You can enable and disable the device from the output enable (OE) pin. low power consumption, wide voltage range, low input current are the major features associated with 74HC-245. 74HC 245 is mostly used in personal computers, servers, wearable health devices, fitness devices, network switches, electronic points of sale etc. 74HC 245 is shown in the figure given below.

1. 74HC245 Pins

• There are total twenty (20) pins in 74HC 245 having different and unique functions.
• All the 20 pins are given in the table shown below.

2. 74HC245 Pin Description

• Each pin of 74HC 245 performs different function.
• The description of each function is given in the table shown below.

3. 74HC245 Pinout

• With the help of pinout diagram, we can get familiar with the configuration of the pins of the particular device.
• 74HC-245 pinout diagram is shown in the figure given below.

 

4. 74HC245 Functional Diagram

• Functional diagram presents the internal functionality of a device.
• 74HC-245 functional block diagram is shown in the figure below.

5. 74HC245 Ratings

• To understand the power requirements of a device me must need to know its rating information.
• 74HC 245 power, voltage and current ratings are given in the table shown below.

6. 74HC245 Features

• Features of anything play a vital role to differentiate this thing from all the other things.
• They may be good or bad, in terms of electronics features deal with the benefits of that device in real life.
• 74HC-245 has a lot of features, a few of the major features are listed in the table given below.

In the tutorial, Introduction to 74HC245, I have tried my best to cover and share all the necessary information about this particular Integrated Circuit (IC). This information include pins info, pins description, pinout diagram, functional diagram, features, ratings etc. These all are very important to know before using this device for any of the purpose. If you find that there is something missing in it. Please let me know about that. I will update this article correspondingly for the better understanding of the reader. And if you have any sort of problem you can freely ask us in comments anytime you want to. Our team is always available and will try our best to solve your issues. I will share further informative articles about different such IC's later. So, till then take care :)