The inductor Q value is a characteristic of the inductor material. It can describe the reaction state of the inductor to changes in current.
It can reflect the degree of magnetization of the material and can also describe the degree of loss of the inductor.
The inductor Q value is defined as The ratio of the inductance value to the loss at the cost frequency (or other specific frequency).
The higher the Q value of the inductor characteristics, the smaller the loss of the inductor at the measured frequency.
The higher the degree of magnetization of the inductor, which may Produce more magnetic flux. Therefore, the inductor Q value can be used to characterize the magnetization degree and loss state of the inductor.
Inductor q value calculation formula
The calculation formula for the inductor q value is: Q=2πfL/R, where,
Q: Quality factor of inductor
f: frequency of inductor
L: Inductance value of the inductor
R: Series resistance of the inductor
The quality factor Q of the inductor refers to the magnetic permeability of the inductor within the linear range of the inductor, which can prevent changes in current. It can be used to measure the energy conversion efficiency of an inductor at a specific frequency.
It represents the energy conversion efficiency of the inductor at a specific frequency. The larger the value, the higher the energy conversion efficiency of the inductor at a specific frequency, and the better the inductor is.
How to measure the q value of inductor?The Q value is measured by connecting the inductor to the transformer, connecting both ends of the transformer to ground, and then adjusting the frequency of the transformer to obtain maximum output power.
Measure the current and voltage and calculate the Q value of the inductor: Q value = output power/input power.
Inductor q value unit
The inductor q value is determined by two parameters of the inductor: inductance and loss resistance.
Its units are dimensionless. Generally, the Q value of an inductor is between 20-1000. The higher it is, the smalle