ER1025-82KM

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ER1025-82KM Application Field and Working Principle

The ER1025-82KM is a fixed inductor from a family of components known as fixed inductors. A fixed inductor is an electronic component which stores energy magnetically and is used to create advanced control circuitry, including power supplies, safety regulators, and test and measurement instrumentation. The ER1025-82KM is specifically designed to provide excellent performance with a fixed inductance of 15mH.

Applications

The ER1025-82KM is typically used in applications that require high currents and low inductance values, such as in switch-mode power supplies, high frequency power converters, and smart power management systems. Additionally, the component is suitable for use in resonant converters, radio transmitters, shielding in cell phone antennas, and other precision measurements. The inductor is also suitable for use in circuits with high reactance, such as in radio frequency (RF) circuits and magnetic field sensing.

Working Principle

Fixed inductors have an outer core made of a ferrite-magnetic material, which provides the necessary magnetic field, and an inner core made of a conductive material. When an electric current is applied to the outer core, it produces a magnetic field that increases in strength with increasing current. As the current increases, the field passes through the inner core, inducing a voltage in the conductive material. This voltage is relayed to the circuit attached to the inductor and is used to control the electrical flow.

In the case of the ER1025-82KM, the exact inductance of 15mH is achieved by using an optimization technique called tapering. Tapering works by gradually changing the thickness of the ferrite core so that the magnitude of the flux passing through the inner core is accurately determined and set to the required 15mH value. This allows the component to operate with high accuracy and precision.

Conclusion

The ER1025-82KM is a fixed inductor designed to provide excellent performance in precision measurements and power supply applications. The inductor is constructed using a ferrite-magnetic material for the outer core and a conductive material for the inner core, allowing it to store and release energy magnetically. Tapering is used to adjust the thickness of the ferrite core to achieve an accurate inductance of 15mH. As such, the ER1025-82KM offers excellent performance in a wide range of applications.

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