How to judge the quality of integrated inductance
Release time: 2021-05-18
Good or bad judgment: The reading of the chip inductance at this time should be zero, and if the multimeter reading is too large or infinite, the inductance is damaged.
Inductance measurement: Set the multimeter to buzzer diode, place the pen on the two pins, and see the reading of the multimeter.
For the number of turns of the inductor coil, the reading of the coil with a smaller diameter will reach tens to hundreds, and the DC resistance of the coil is usually only a few ohms.
The damage is shown as burning or obvious damage to the inductor magnetic ring, if the inductor coil is not seriously damaged, and can not be determined, the inductance meter can be measured or the replacement method is used to judge.
The integrated inductor is suitable for wet and dry, high and low ambient temperature, high frequency or low frequency environment, and it is necessary to pay attention to whether the inductor is inductive or impedance characteristics.
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