An active inductor is implemented using an eight-lead integrated circuit (IC), two carbon resistors, and a small capacitor. A typical commercial inductor with a value of 50 henries may occupy up to five cubic inches.
An active inductor circuit provides a compact and efficient alternative to traditional passive inductors. The design utilizes an eight-lead IC, which integrates multiple functions necessary for the operation of the active inductor. The two carbon resistors are employed to set the gain and stability of the circuit, while the small capacitor is used for frequency compensation and filtering purposes.
In this configuration, the active inductor operates by utilizing feedback mechanisms within the IC to emulate the inductive behavior. This allows for a significant reduction in physical size compared to conventional inductors, which can be bulky and occupy considerable space. The use of an active inductor can be particularly advantageous in applications requiring high inductance values, such as RF circuits, where traditional inductors would be impractical due to their size and weight.
The integration of the components within an IC also enhances performance characteristics, such as bandwidth and response time, making active inductors suitable for modern electronic applications. Overall, the active inductor represents a significant advancement in circuit design, providing a space-efficient and high-performance solution for inductive components in electronic systems.An active inductor is realized with an eight-lead IC, two carbon resistors, and a small capacitor A commercial inductor of 50 henries may occupy up to five cubic inches.
This document presents an active low-pass filter circuit with a cut-off frequency (fc) of 10 kHz. The circuit allows for various values for the ratios of resistors R1 and R2, as well as capacitors C1 and C2. Specifically, it...
A simple 3-way crossover, intended for triamping Hi-Fi systems. This is a conventional 12dB / Octave unit, and cannot be expected to have the same performance as a Linkwitz-Riley aligned filter network. It will still be a vast improvement...
This circuit, which utilizes an LM1458 or a similar operational amplifier, functions as a fourth-order high-pass filter with a roll-off rate of 24 dB per octave. The resistor values Rx/R2 and RJRV can be adjusted to accommodate different cutoff...
With a constant current excitation, the voltage across an inductance increases with frequency. Therefore, an active device whose output increases with frequency can be characterized as an inductance. The circuit exhibits this response with the effective inductance defined as:...
This topic continues the coverage of audio tone controls. The first entry started with a passive tone control circuit using different RC filter configurations and introduced an active filter. The second entry showed a fully designed 2-band active tone...
Wind hundreds of turns of magnet wire around a paper tube. Connect this homemade inductor in series with an AC power supply and a lamp to create a circuit. When the tube is empty, the lamp should shine brightly....
We use cookies to enhance your experience, analyze traffic, and serve personalized ads.
By clicking "Accept", you agree to our use of cookies.
Learn more