Electronics guide: Diode, Capacitor, Arduino Platform, and Electronics Store
A photoelectric relay is a type of relay that operates based on the principle of detecting light or optical signals. It typically uses a photoelectric sensor to sense the presence or absence of light, which then triggers the relay to open or close its contacts. This type of relay is commonly used in applications where … Read more
A bipolar junction transistor (BJT) offers several advantages over a MOSFET in certain applications. One advantage is its capability to amplify current effectively at low voltages, making it suitable for analog circuits where precise current amplification is crucial. BJTs also have a high current-driving capability, which makes them preferable in applications requiring significant current handling … Read more
When a resistor converts electrical energy into heat, it’s not necessarily considered wasted energy in all contexts. Resistors are intentionally designed to dissipate electrical energy as heat, which serves useful purposes in many electronic applications. For example, resistors are crucial in voltage dividers, current limiters, and temperature sensors where controlled dissipation of energy as heat … Read more
A neutral wire in electrical wiring is a conductor that carries current back to the electrical panel from various outlets and devices in a circuit. It is typically color-coded white or gray in the United States and blue in many other countries. In AC (alternating current) electrical systems, the neutral wire completes the circuit and … Read more
The operating principles of a 3-phase star-delta starter involve two main configurations: star (Y) and delta (∆). In the star configuration, the motor windings are connected in a configuration resembling the shape of a star, with each winding connected between a phase and a common point (neutral point). This configuration allows the motor to start … Read more
Ferrite beads and SMD resistors serve different purposes in electronic circuits, although ferrite beads do exhibit impedance characteristics similar to resistors. Ferrite beads are primarily used to suppress high-frequency noise in circuits by introducing impedance to unwanted signals while allowing DC or low-frequency signals to pass through relatively unimpeded. This impedance is frequency-dependent and is … Read more
When driving a device using both a MOSFET and an Arduino, a common ground is essential to ensure proper communication and operation between the two components. The common ground serves as a reference point for the electrical signals exchanged between the Arduino and the MOSFET. Without a common ground, the signals might not be interpreted … Read more
In electronics, when a resistor is connected in reverse bias, current typically does not flow through it in the conventional sense. Resistors are passive components that resist the flow of current, and their behavior does not change significantly based on the polarity of the voltage applied across them. Therefore, whether a resistor is connected in … Read more
A permanent magnet cannot be used in a transformer. Transformers operate based on the principle of electromagnetic induction, which requires alternating magnetic fields to induce a voltage in the secondary coil. Permanent magnets produce a constant magnetic field, which does not vary with time and, therefore, cannot induce the necessary alternating current in the transformer’s … Read more
Circuit breakers are essential components in electrical systems designed to protect circuits and electrical equipment from damage caused by overcurrents, short circuits, and other electrical faults. They function by automatically interrupting the flow of electricity when abnormal conditions occur, thereby preventing overheating, fires, and damage to connected devices or wiring. By tripping and opening the … Read more