Common-mode inductance

9 month ago

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10 month

Product details

Selection of common mode inductors

1.For the power port: select the inductor that exceeds the standard to judge its corresponding impedance, and the inductance of the common mode inductor can be used as a reference to calculate the corresponding cutoff frequency; Experience value common mode inductance range General mh level.

2. Signal port: select the impedance curve of the corresponding pair of inductors, and with the capacitor to form LC or CL structure for filtering, the experience value of common mode inductance range of tens of nh. For high-speed signals, it is necessary to pay attention to the effect of the differential mode component of the common mode inductor on the effective signal.

3. In the power port selection of common mode inductance need to pay attention to the common mode inductance parameters: rated current (consider temperature rise), rated voltage and withstand voltage value (consider voltage and insulation), DC impedance (DCR, heat loss problem), insulation, temperature range (core temperature curve and magnetic saturation problem).

4. For different winding effects of common mode inductance:

(1) Double wire and winding: the symmetry is higher, but the parasitic capacitance of the two lines is larger;

(2) Double-wire winding: easy to produce, the parasitic capacitance of the two lines is small, and the differential mode component is larger.

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Xuzhou Jiuli Electronics Co., Ltd

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10 month

Main Product: Electronic Transformer, High-frequency Transformer, Switching Power Supply Transformer , Differential Mode Inductor, I-type Inductor, Common Mode Inductor

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