Electronics guide: Diode, Capacitor, Arduino Platform, and Electronics Store
How do you know when a start capacitor is bad? Determining when a start capacitor is bad can be identified by several signs. One common indicator is difficulty or failure of the motor to start properly. You might hear a humming sound from the motor as it tries to start but fails to turn over. … Read more
Converting current into voltage involves using a resistor to create a voltage drop proportional to the current flowing through it. This method is commonly known as using a “shunt resistor.” By Ohm’s law, voltage (V) is equal to current (I) multiplied by resistance (R). Therefore, placing a known resistor in the path of the current … Read more
Electricity is generated through various methods, primarily involving the conversion of energy from one form to electrical energy. The most common method involves electromagnetic induction in power plants. In these plants, mechanical energy, often derived from steam turbines or water turbines, rotates a generator’s rotor inside a magnetic field. This movement induces an electric current … Read more
No load current in a transformer refers to the current drawn by the primary winding when the secondary winding is open or unloaded. This current flows in the primary winding due to the magnetizing flux required to establish the transformer’s core magnetic field. It represents the energy losses in the core due to hysteresis and … Read more
An electric motor is a device that converts electrical energy into mechanical energy through the interaction of magnetic fields. It typically consists of a stationary component called the stator and a rotating component called the rotor. When electric current flows through the motor’s stator windings, it generates a magnetic field that interacts with the magnetic … Read more
Sensors work by detecting and measuring physical, chemical, or biological phenomena and converting them into electrical signals that can be interpreted and processed by electronic devices. The fundamental principle behind sensor operation varies depending on the type of sensor and the phenomenon it detects. Generally, sensors utilize changes in physical properties like resistance, capacitance, voltage, … Read more
The use of an insulating layer between the gate electrode and the channel region in a MOSFET is crucial for its operation and performance. This insulating layer, typically made of silicon dioxide (SiO2) or another high-quality insulator, serves to electrically isolate the gate electrode from the semiconductor channel beneath it. This isolation prevents direct electrical … Read more
How to test a thyristor? Testing a thyristor can be done using a digital multimeter set to the diode test mode. Start by ensuring the thyristor is disconnected from any power source. Identify the terminals: anode (A), cathode (K), and gate (G). Place the multimeter probes across the anode and cathode terminals; the multimeter should … Read more
A rectifier circuit is an electronic circuit that converts alternating current (AC) into direct current (DC). It typically consists of diodes arranged in a specific configuration to allow current flow in only one direction, effectively converting the AC input into a pulsating DC output. Rectifier circuits are fundamental in power supplies and various electronic devices … Read more
A step-down transformer is used in a half-wave rectifier primarily to match the voltage levels of the AC supply to the requirements of the rectifier circuit. In a half-wave rectifier, only one half of the AC waveform is converted into DC. The transformer steps down the higher AC voltage from the mains to a lower … Read more