Electronics guide: Diode, Capacitor, Arduino Platform, and Electronics Store
A capacitor does not take infinite time to charge, but rather it charges exponentially over time according to its capacitance (C) and the resistance (R) in the circuit. The charging time is governed by the RC time constant, which is the product of resistance and capacitance (τ = RC). During charging, the voltage across the … Read more
Transformers operate on the principle of electromagnetic induction to change the voltage levels of alternating current (AC). At its core, a transformer consists of two coils of wire, known as the primary and secondary windings, which are wrapped around a common magnetic core. When an alternating current flows through the primary winding, it generates a … Read more
MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistors) find diverse applications across various industries and everyday devices due to their efficient switching and amplification capabilities. One common use of MOSFETs is in power electronics, where they are employed as switches in voltage regulators, DC-DC converters, and motor control circuits. Their ability to handle high currents and voltages with minimal … Read more
MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistors) play crucial roles within integrated circuit (IC) chips, serving primarily as switches and amplifiers. In IC chips, MOSFETs are utilized in digital circuits to control the flow of electrical signals, enabling logic operations such as AND, OR, and NOT gates. They act as electronic switches, toggling between conducting and non-conducting states … Read more
When a voltage source is connected to a capacitor, initially there is a surge of current as the capacitor charges. This occurs because capacitors act as temporary sinks for electric charge. Once fully charged, a capacitor effectively becomes an open circuit to direct current (DC). This means that while it allows current to flow momentarily … Read more
A color code is used for resistors to indicate their resistance value, tolerance, and sometimes reliability or temperature coefficient. This coding system provides a straightforward, standardized method for identifying these values, especially on small components where printing numerical values would be impractical. The color bands are easy to read and interpret once the code is … Read more
A resistor can have voltage across its terminals when it is part of an electrical circuit where current flows through it. According to Ohm’s Law, voltage (V) across a resistor is equal to the current (I) flowing through it multiplied by its resistance (R), expressed as V = IR. Therefore, whenever current passes through a … Read more
When a conductor is placed between the plates of a capacitor, it effectively shorts out the electric field between the plates. This happens because a conductor allows electrons to move freely across its surface, neutralizing any potential difference between the capacitor plates. As a result, the capacitor loses its ability to store electric charge or … Read more
FET operation is often limited to small signals to ensure linearity and prevent distortion. In small signal conditions, the FET operates within a region where its behavior is predictable and can be approximated by linear equations. This linear operation is crucial for accurate amplification and signal processing. Large signals can drive the FET into non-linear … Read more
Resistors do not cause phase shift in electrical signals. They are passive components that do not store energy in an electric or magnetic field. As a result, resistors do not introduce any phase shift between voltage and current passing through them. The voltage and current across a resistor are in phase with each other, meaning … Read more