Md Nazmul Islam

This diagram explains how to build a basic 12V audio amplifier circuit using the AN7523N IC. It’s ideal for powering small speakers (like a 6-inch unit) and can be used for home audio projects, DIY speaker systems, or learning amplifier fundamentals. Key Components: IC AN7523N: The main amplifier chip that boosts...

This wiring diagram demonstrates how to automate water tank filling using a water level controller and motor pump. The setup ensures the tank fills automatically when water levels drop and stops when it’s full — saving electricity and preventing overflow. Key Components: Water Level Controller: Detects the water level and controls...

This diagram clearly illustrates how to connect a solar panel system with a charge controller, battery, and inverter to manage both DC and AC power efficiently. It’s a practical setup for off-grid or backup power systems, ensuring safe energy flow from solar panels to household appliances. Key Components: Solar Panel: Converts...

This diagram shows a staircase wiring circuit, a smart setup that allows you to control a single light from two different switches — one at the top of the stairs and one at the bottom. It’s widely used in homes, apartments, and corridors for convenience and safety. Key Components: Two 2-way...

This diagram demonstrates a simple switchboard wiring connection, showing how to properly connect switches and sockets in one board for safe and efficient operation. It helps beginners understand how the phase, neutral, and earth wires are connected for household electrical setups. Key Components: Switch: Controls power to one or more sockets. Sockets:...

This diagram shows the complete wiring setup of a table fan, including the capacitor, resistance, motor, and switch. It helps you understand how each component works together to control the fan’s speed and ensure smooth operation. Key Components: Capacitor: Provides the necessary phase shift for the fan motor to start. Resistance: Helps...

This diagram shows the complete fan wiring connection using a switch, regulator, and 3.3µF capacitor. It demonstrates how to properly wire a ceiling fan for safe operation and adjustable speed control. Key Components: Switch: Controls power to the fan. Regulator: Adjusts the fan speed. Capacitor (3.3µF): Helps start the fan and maintain rotation. 3-Way...

This diagram explains the basic switch board wiring used in homes and offices. It shows how multiple sockets and a switch are connected to a single power source for controlling electrical appliances safely and efficiently. Key Components: Switch: Controls the flow of current to the sockets. Sockets (1, 2, 3): Used for...

This diagram shows the basic electrical wiring for controlling a fan and bulb using separate switches. It’s a simple and essential household circuit that helps you understand how power flows through switches to operate electrical loads safely. Key Components: Fuse: Provides circuit protection from overloads or short circuits. Switches: Control the fan...

This image shows the most commonly used electrical holders and pliers that every electrician should know. Holders are used to safely connect light bulbs, while pliers are essential for gripping, cutting, and shaping wires during installation and repair. Types of Electrical Holders: Burfi Holder: Used for wall or ceiling mounting. Angle Holder:...

This diagram shows how to wire a single room with an inverter backup system. The setup ensures that essential appliances like a fan and bulb continue working during power outages. The MCB provides circuit protection, while the inverter automatically switches to battery power when the main supply fails. The wiring...

🌟 Star Connection vs 🔺 Delta Connection Star Connection (Y): Each phase winding is connected to a common neutral point. Phase voltage = Line voltage ÷ √3. Used for starting motors with reduced voltage and current. Suitable for long-distance transmission due to lower current. Delta Connection (Δ): Windings are connected end-to-end forming a closed loop. Phase voltage...