Electronics project

Everyone is using the battery nowadays, whether in your vehicle or for inverter, so along with using the battery, it is also important to maintain it because you have to spend a lot of money in getting another battery.   In this post, you will learn some such tips on the maintenance of the battery, by following which the battery will not get spoiled quickly and its life will also be almost doubled.  Some important tips for battery maintenance are given below.   1 (Water) The most important thing for the battery is that the amount of water in the acid present inside the battery should not be less.  Because when the battery is repeatedly charged and discharged, the amount of water in the acid present inside the battery gradually decreases by burning, so it becomes necessary to check the water level inside the battery from time to time.   And if the amount of water inside the battery has decreased, then wate...

The presented circuit diagram is for a 5 volt regulated power supply.  The main component used in this is the voltage regulator IC 7805.   Voltage Regulator 7805 is such an IC whose input we give any voltage from 9v to 25v but from its output always gets only 5 volts.  5V regular power supply is mostly used for sensitive circuits.   Circuit diagram  It is a very simple and low cost power supply and very easy to use.  The 5V regulated power supply can be used for any 5V DC power equipment.  Using this regulated power supply, no electrical equipment will get damaged due to voltage level fluctuations.

There is often a risk of injury due to electric shock during the repair of power lines and electrical equipment. This Wireless AC Current Detector is a very useful project to ensure the presence of electricity before repairing the power line and any electrical equipment.  This project is made using very few electrical components. this project made have been used two NPN transistor Q1, Q2 C1815 only and one LED. With this wireless ac current detector, you can easily detect the electric current flowing in any wire from a distance of about two to three inches without touching the wire.  Wireless ac current detector circuit diagram  This wireless current detector is very simple and low cost. With this wireless AC current detector, the electric current flowing through the wire can be easily detected without cutting the plastic.  Through this wireless AC current detector, neutral and phase (current wire)can be easily detected....

Presented circuit diagram is of 20 watt simple inverter.  This circuit is very simple and low cost.  This inverter can be easily made at home.   Two transistors CTC1351 and a ferrite Kaur transformer are used in this circuit.  Apart from this, a resistor 220 ohm, a polyester capacitor 105J, a diode IN4007 and a coil L1 have also been used in this circuit.  There are three coils in the primary winding of the ferrite core transformer used in this circuit, two coils have 15-15 turns of 25 gauge wire and one coil has only 6 turns.  And there are about 270 turns of 36 gauge wire in the secondary winding of the transformer. This circuit requires a 4v to 12v DC power supply to function.  The list of electrical components used in this circuit is given below. Electronics components list  Transistor  Q1 Q2, CTC 1351 Transformer  T1 ferrite core  Capacitor  C1...

Presented circuit diagram is of 9V DC 200mA transformerless power supply.  A polyester capacitor C1 105J 400v is used in this circuit to step down the AC voltage.   Resistance R1 1mega ohm is used to discharge the capacitor.  And resistance R2 100 Ohm is used as a fuse.  Four diodes 1N4007 have been used in this circuit to convert AC volts to DC.   Apart from this, an electroletic capacitor C2 1000UF 25v has been used in this circuit to filter the voltage.  A zener diode 9v 1W has been used in this circuit to protect the circuit.   This circuit is very simple and very easy to use.  The list of all the electrical components used in this circuit is given below. List of electronics components  Capacitor  C1 105j 400v  C2 1000uf 25v Resistance  R1 1M ohm 1/4w R2 100 ohm 1w R3 1Ik ohm  Diode  D×4 1N4007 Jenner diode  9v 1w LED light 

The presented circuit diagram is designed to act as a 5 volt battery charger.  You can also use this circuit for 5v regular power supply.   Any device running on 5v DC can be connected to this circuit such as for charging mobile phone battery, LED DOB which glows from 4v etc.  In this circuit ic 7805 is used which is a voltage regulator ic.   Give any voltage 12 to 35 at the input of ic 7805 but always get 5V on its output pin.  This circuit is made up of very few components and is very easy to use.   And at the same time, this power supply is also very safe. a list of electronics components use in this circuit given below. Electronics components list  ic 7805 Capacitor  C1 220uf 50v C2 47uf 25v

 The given circuit diagram is designed for a 6 V regulated power supply. In this circuit voltage regulated ic7806 is used. Give any voltage from 9v to 24v on the input pin of ic7812 but always get 6 volts on its output pin. To convert Main AC 230v to 12V AC, a transformer T1 12 0 12v has been used in it. Also, four diodes 1N4007 have been used in this circuit to convert AC voltage to DC. A capacitor c1 4700uf 50v has been used to filter the DC voltage. This power supply can be connected to any electrical appliance running on 6v DC. This is a very safe power supply. a list electronics components used in this circuit given below. List of Electronics Components  Transformer  T1-12 012v  regulated IC  7806  diode  D×4 1N4007  capacitor  c1 4700uf 25v  c2 c3  0.01uf  Resistance  R1 1I Ohm

Presented circuit is designed for automatic battery charger.  This circuit automatically turns off the battery supply as soon as the battery reaches its full charge level.   Only one transistor BC547 drives this circuit.  The base of the transistor BC547 is connected to the positive pole of the battery by a 4.7k ohm resistance.  And a variable resistance 10k ohm is used to adjust the voltage level at the base of the transistor.   Let's assume that the battery to be charged is of 12 volts. When fully charged, the voltage level of the battery rises to about 14 volts.  And with this, the voltage at the base of the transistor BC547 increases, due to which the transistor comes into switch on mode.  And with this the relay connected to the collector of the transistor comes to the on position and turns off the supply of the battery.   The list of electrical components used in this circuit is given below. ...

The presented circuit diagram acts as 12v battery charger.   We get 10 Amp current from the output of this charger which is suitable for charging 150Ah battery.  A 0-12 10 Amp stepdown transformer has been used in this, in its output we get 12v 10Amp.  To convert 12v AC to DC, 4 diodes 5408 have been used in this circuit which are connected in parallel.   This charger is very suitable and simple and low cost charger to charge the battery.  This charger can be easily made at home.  

The presented circuit diagram acts as an audio amplifier.  This is a basic simple audio amplifier circuit diagram.  With this circuit, very low power audio signals can be made more powerful.   In this 2 transistor BC 547 has been used.  And with this, 2 resistors R1, R2 and two capacitors C1, C2 have been used in this  circuit.  Basic audio amplifier circuit diagram  How to work basic audio amplifier   Very low power input audio signal is applied through capacitor C1 to the base of transistor Q1.  Transistor Q1 amplifies the power of the audio signal which we get at the ammeter of the transistor.   The audio signal received from the ammeter of transistor Q1 is applied to the base of transistor Q2 through capacitor C2.  And the transistor Q2 makes the audio signal more powerful than what we get on the transistor's collector.   We can hear them by connec...

The presented circuit diagram serves as an alcohol detector.  This project is used to measure the level of alcohol in the breath.   Driving under the influence of alcohol causes accidents every day.  Very useful project to check whether driver is drunk or not.  This project is very cheap and easy to use.   In this project, we have used the MQ3 sensor to detect the level of alcohol in the breath.  An IC LM3914 is used to convert the alcohol sensor output to digital.  And pins 1, 18, 17, 16, 15, 14, 13, 12, 11 and 10 of ic LM3914 are output pins.  These pins are connected to 10 different LEDs of different colors.  Pin 5 of the ic is connected to the output pin of the alcohol sensor.  And the pin 3 and 9 of the ic is connected to +v.  And pins 2 and 4 of ic are grounded. Circuit diagram  How to work alcohol detector  As soon as an alcoholic exhales in front of the MQ3 sensor,...

Building Your Own FM Transmitter:  A Step-by-Step Guide Introduction: In an era where wireless communication is king, understanding the basics of radio frequency (RF) technology can be both fascinating and practical. One exciting project to delve into this world is building your own FM transmitter. In this blog post, we'll provide you with a comprehensive guide, including a circuit diagram, to create your very own FM transmitter. Whether you're an electronics enthusiast or just curious about how it works, this DIY project is both educational and fun. **Chapter 1: Understanding the Basics of FM Transmitters** Before we dive into the circuit diagram and assembly, let's briefly explore what an FM transmitter is and how it works. 1. **What is an FM Transmitter?**    An FM transmitter is a device that c...

 BC558 NPN Transistor pinout and Datasheet: Pinout: Collector (C) Base (B) Emitter (E) BC558 NPN Transistor Datasheet General Description:  The BC558 is a widely used NPN bipolar junction transistor (BJT) designed for general-purpose amplification and switching applications. It belongs to the BC54x series of transistors and is commonly used in low-power amplifier circuits, signal amplification, and as a switch in various electronic devices. Features: NPN transistor with three-layer construction. Low current (IC) and voltage (VCE) ratings. High current gain (hFE). Low saturation voltage. RoHS compliant. Electrical Characteristics (TA = 25°C unless otherwise specified): 1 Absolute Maximum Ratings: Collector-Base Voltage (VCBO): 30 V Collector-Emitter Voltage (VCEO): 30 V Emitter-Base Voltage (VEBO): 5 V Collector Current (IC): 100 mA Total Device Dissipation (PD): 500 mW Operating and Storage Junction Temperature Range...

 High voltage generator circuit diagram  The presented circuit diagram is designed to generete high voltage.  This circuit generates 2000 high volts dc. This circuit should be used very carefully.  This circuit is built using transistor D882.   This circuit is used to protect crops from wild animals and to protect them from monkeys.  And this circuit is also used in mosquito bat.  A list of all the electronic components used in this circuit is given below. How to make high voltage generator circuit watch full video  Electronics components list  Transistor  Q1 D882  Capacitor  C1 105j 400v C2 102 pf C3 101 of C4 223j 2000v  Diode  all diode 1N4007  LED light Resistance  R1 1m ohm  R2 18k ohm  R3 1.5I ohm  Transformer  L1 15 turn 0.2mm copper wire  L2 30 turn 0.2mm copper wire  L3 450 turn 0.05mm copper wire  Battery 4v PC...

 The IC LM7809 is used for the regulated power supply of 9 volt.  By giving 12v to 35v on its input pin number 1, a regulated power supply of its output pin numbers 3 to 9v is obtained.  Its output can deliver loads up to 1.5mA on pin no.3.  The pinout of the IC LM7809 is shown in the below circuit. ic lm7809 voltage regulator pinout 

                 BC547 NPN Bipolar Junction Transistor -------------------------------------------------------------------- General Description: ------------------- The BC547 is a popular NPN bipolar junction transistor commonly used in amplifier and switching applications. It is designed for low to medium power amplification and switching tasks. Features: --------- - NPN silicon transistor - Low voltage (up to 45V) and current (up to 100mA) ratings - High current gain (hFE) of 110 to 800 - TO-92 plastic package for easy mounting Pinout: -------   Emitter (E)       Collector (C)       Base (B)     |----------------|------------------|      Absolute Maximum Ratings: ------------------------- Parameter              Symbol      Value ---------------------------------------- Co...

BC548 NPN Transistor data sheet and pinout Features: NPN silicon transistor. High current gain (hFE) of typically 110-800. Low collector-emitter saturation voltage. Low noise and low power. Absolute Maximum Ratings: Collector-Base Voltage (VCBO): 30V Collector-Emitter Voltage (VCEO): 30V Emitter-Base Voltage (VEBO): 5V Collector Current (IC): 100mA Total Device Dissipation (PD): 500mW Junction Temperature (TJ): 150°C Storage Temperature Range (TSTG): -65 to 150°C Electrical Characteristics (TA = 25°C unless otherwise specified): Package Information: The BC548 transistor is available in...

 The presented circuit diagram is of a 12 volt DC regulated power supply. This circuit is built using ic 7812.  Two capacitors c1 (4700uf 50V) and capacitor c2 (1UF) have been used in this circuit to filter the voltage.  By giving 110 volt to 230 volt AC to the input of the presented circuit, its output provides 12 volts DC regulated power supply.  You can use this power supply in any 12v DC powered device. This power supply is absolutely safe.

    Understanding Electronic Component Circuit Symbols Introduction Electronic circuits are the building blocks of modern technology. From smartphones to spacecraft, electronic circuits power and control a wide range of devices. To work with these circuits effectively, engineers and enthusiasts alike need to understand the symbols used to represent electronic components in circuit diagrams. In this blog post, we will delve into the world of electronic component circuit symbols, demystifying the key symbols you need to know.   Chart of electronics components circuit symbol  Resistors Resistors are one of the fundamental components in electronics. They limit the flow of current in a circuit. In circuit diagrams, resistors are represented by a zigzag line. The symbol is simple, resembling a serpentine path. The value of the resistance is often indicated next to the symbol in ohms (Ω). Capacitors Capacitors store electrical charge and release it when need...

  Battery level indicator circuit  Due to excessive discharge, there is often a possibility of the battery getting damaged soon.  Here we need to pay attention to the charging level of the battery.   For this, the battery level indicator can prove to be a great project because with the battery level indicator project, we can easily know the information about the charging level of the battery and the battery can be saved from damage in time.   The Battery Charging Level Indicator is a project that will monitor the charging status of the battery at all times and notify you. The presented circuit diagram acts as a battery level indicator . Through this circuit, you can find out the charging level of any battery. This circuit is built using ic LM3914. Battery level indicator circuit diagram  This battery level indicator is very low cost and easy to use. The circuit requires 9 to 12 volts DC to function. The l...

  9v DC regulated power supply circuit diagram  The presented circuit diagram is of a 9 volt DC regulated power supply.  This circuit is built using ic 7809.  Two capacitors c1 4700uf 50V and capacitor c3 1UF have been used in this circuit to filter the voltage.     By giving 110 volt to 230 volt AC to the input of the presented circuit, its output provides 9 volts DC regulated power supply.  You can use this power supply in any 9v DC powered device.  This power supply is absolutely safe.

 The presented circuit diagram is used to convert ac 220 volts to DC 9 volts 500mA .  A 9 0 9v 500mA transformer is used in this circuit.   In the primary winding of the transformer, Ac is given 230 volts and its secondary windings gives 9V Ac.  Two diodes 1N4007 have been used in this circuit to convert AC voltage to DC voltage.  And a capacitor 2200uf have been used to filter the DC voltage.

Understanding Relays: The Hidden Heroes of Electrical Control Introduction Relays might not be as flashy as the latest gadgets or as prominent as smartphones, but they play a crucial role in our daily lives. These unassuming devices are the unsung heroes of electrical control, allowing us to automate, control, and safeguard various processes. In this blog post, we'll dive deep into the world of relays, exploring what they are, how they work, and their numerous applications. What is a Relay? A relay is an electromechanical device that acts as a switch controlled by an electrical signal. It consists of three main components: 1. **Coil**: The coil is an electromagnetic winding made of wire, which generates a magnetic field when current flows through it. 2. **Contacts**: The contacts are the actual switches inside the relay, and they are typically made of metal. These contacts open or close in response t...

PCB mountable relay pinout  A relay pinout refers to the layout and function of the pins in a relay, which is an electrically operated switch used to control high-power circuits with low-power signals. Here's a basic breakdown of common relay pinouts for a 5-pin relay: Standard relay pinout  Pin 1 - Coil ground: This pin connects to the ground side of the control circuit. Pin 2 - Coil power: This pin connects to the positive side of the control circuit. Pin 3 - Common (COM): This pin is the primary input, where the power source connects. Pin 4 - Normally Open (NO): When the relay is activated, this pin connects to Pin 30, sending power to the connected load. Pin a - Normally Closed (NC): When the relay is deactivated, this pin remains connected to Pin 30, powering a different circuit. Understanding the relay pinout is crucial for proper wiring in electrical systems to ensure safe and efficient switc...