Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

What is a Capacitance Meter?Capacitance Meter DefinitionA capacitance meter is a device used to measure the capacitance of discrete capacitors.Working PrincipleIt operates based on the proportional relationship between capacitance and a time constant.Measurement MethodCapacitance is measured using a 555 timer by calculating the time period of oscillations.Role of 555 TimerThe 555 timer acts as an astable multivibrator, with its frequency determined by the unknown capacitance (CX).Practical UsePr

Another important property in AC electronic circuits, besides resistance and inductance, is capacitance. Capacitance is measured in units. The unit of capacitance is the farad. While inductance is represented in a circuit by a coil, capacitance is represented by a capacitor. In its most basic form, the capacitor is constructed of two parallel plates separated by a nonconductor, called a dielectric. In an electrical circuit, a capacitor serves as a reservoir or storehouse for electricity.Capacita

When working with individual capacitors in electronic circuits, it is essential to understand theirbehaviour and effects. For example, in a series arrangement, the positive plate of one capacitor is connected to the negative plate of the next capacitor in line. This unique connection impacts the circuit's total equivalent capacitance (C_total), causing the total capacitance to be smaller than the smallest individual capacitance (C) present in the series.A series circuit is characterized by its l

What is a Capacitor?Capacitors are one of three fundamental electronic components that form the foundation of a circuit – along with resistors and inductors. A capacitor in an electrical circuit behaves as a charge storage device. It holds the electric charge when we apply a voltage across it, and it gives up the stored charge to the circuit as when required.The most basic construction of a capacitor consists of two parallel conductors (usually metallic plates) separated by a dielectric material

The design and advantages of a novel light emitting diode (LED) bandwidth extension technique, based on the adoption of negative impedance converters (NICs), are discussed in the context of visible light communication systems. The design principles of the proposed negative impedance converter are introduced, with analytical derivations of the impedance frequency behaviour and the circuit performance frequency limitations. A two-transistor circuit is designed to generate a negative capacitance ov

The recent discovery that the input impedance of digital impedance circuits is dependent on the external source impedance requires the development of new design procedures to address the significant complexity of this discovery. These circuits are of particular utility for the implementation of difficult non-Foster impedances such as negative capacitance. Therefore, a new digital impedance circuit design procedure is presented where stable digital filter coefficients are computed to provide desi

In this paper, a transformer-based bandwidth (BW) extension technique is employed to improve the BW, noise, and silicon area of inverter-based transimpedance amplifiers (TIAs) even when they use inductive peaking. A TIA based on the proposed technique, designed and laid out in a 16-nm FinFET process, demonstrates a 36% increased in BW, a 19% reduction in input-referred noise, and a 57% reduction in silicon area compared to the conventional TIA with inductive peaking. In the proposed TIA architec