LKG1H122MESYBK

Aluminum Electrolytic Capacitors are widely used in the electronics industry and are essential components in power supply systems. LKG1H122MESYBK is a type of aluminum electrolytic capacitor. This article will explain the application field and working principle of it.

Application Field

LKG1H122MESYBK is an electrolytic capacitor with a capacitance of 120μF and a rated voltage of 100V. It is mainly used on the power supply circuits of automation equipment, electro-hydraulic systems, inverters, and other high-voltage drive systems to reduce voltage and ensure the power supply circuits work stably. In particular, it is suitable for the circuits with large current change and bad power quality. It is also suitable for occasions where the combination of small volume, big capacitance, low impedance, and large ripple current capability are important.

The specific application fields are mainly divided into 5 fields, which are frequency conversion, rectification and smoothing, dynamic valley compensation, power compensation, and micro-grid application.

• Frequency conversion

  As a power supply filter, LKG1H122MESYBK can provide the DC voltage required for the drive circuit of an AC drive, and its ripple current capability is very important in this respect. Frequency conversion application requires capacitors with small volume, higher capacitance, low ESR, and large ripple current capability.

• Rectification and smoothing

  In a rectifier circuit, the capacitor needs to filter the AC voltage to ensure a stable output voltage, and the rate at which it can absorb and release energy determines the rate of voltage balance. Capacitance, voltage, and ripple current capability are particularly important for LKG1H122MESYBK in this application.

• Dynamic valley compensation

  Dynamic valley compensation requires capacitors with higher capacitance as well as large ripple current capability. A capacitor with small size and low impedance is essential in this field of application.

• Power compensation

  Power compensation requires capacitors with higher capacitance and large ripple current capability. A capacitor with small size and low impedance has obvious advantages in this application.

• Micro-grid application

  In micro-grid applications, capacitors need to have excellent consistency to ensure the stable operation of the system. Moreover, the capacitance and ripple current capability are also important considerations.

Working Principle

As a type of aluminum electrolytic capacitor, LKG1H122MESYBK utilizes the phenomenon of “electrolytic dissociation” to form an electric field in an electrolyte to produce capacitive effect. It consists of three parts: the aluminum foil etched into hexagonal or ridged plates, the dielectric layer made from an oxide formed on the aluminum foil’s surface, and the electrolyte.

In working, an electric field is created by the potential difference between the two electrodes of the capacitor. When a DC voltage is applied to the capacitor, it causes an electric field to form between the two electrodes of the capacitor. The electric field promotes the movement of ions of the electrolyte, and these ions are attracted to the surface of the aluminum plate due to the electric field.

At the same time, the electric fields formed on the surface of the aluminum plate also induce the formation of an electric double layer. At this time, the positive and negative electric charges are accumulated on the surface of the aluminum plate and the opposite plate of the capacitor respectively, forming a capacitive effect.

In conclusion, LKG1H122MESYBK is a type of aluminum electrolytic capacitor used in various power supply and dynamic voltage regulation circuits. Its application field includes frequency conversion, rectification and smoothing, dynamic valley compensation, power compensation, and micro-grid application. Its working principle is based on the phenomenon of electrolytic dissociation, where an electric field between the two electrodes of the capacitor is generated by a DC voltage applied to it. The electric field causes ions in the electrolyte to move and creates an electric double layer on the surface of the aluminum plate. This forms the capacitive effect for the capacitor.