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The impedance of the common mode choke coil
inductor is proportional to the frequency, and the impedance of the
capacitor is inversely proportional to the frequency. Therefore, the
inductance can block the high frequency through, and the capacitor can
block the low frequency. The two appropriate combination, you can filter
a variety of frequency signals. If the rectifier circuit, the capacitor
and load or inductance in series on the load, you can filter out the
exchange ripple.
Inductor of common mode choke manufacturers is the current filter, is generated by the current through the electromagnetic induction to smooth the output current, the output voltage is low, generally lower than the effective value of AC voltage; for high current, the greater the current the better filtering effect. Capacitance and inductance of many features are just the opposite.
Low-frequency filter capacitor is mainly used for mains filter or transformer rectifier filter, the operating frequency and the mains of the same 50Hz; and high-frequency filter capacitor is mainly used in switching power supply after rectification filter, the frequency of several thousand Hz to several Million Hz. When we use low-frequency filter capacitor for high-frequency circuit, due to low-frequency filter capacitor high-frequency characteristics of poor, it is high frequency charge and discharge resistance is large, the equivalent inductance is high, so in use because of the electrolyte Frequent polarization and produce greater heat, and the higher the temperature will make the internal electrolysis of the capacitor gasification, the capacitor pressure increases, eventually leading to the capacitor drum and burst.
More inductors in www.xp-elec.com
Inductor of common mode choke manufacturers is the current filter, is generated by the current through the electromagnetic induction to smooth the output current, the output voltage is low, generally lower than the effective value of AC voltage; for high current, the greater the current the better filtering effect. Capacitance and inductance of many features are just the opposite.
Low-frequency filter capacitor is mainly used for mains filter or transformer rectifier filter, the operating frequency and the mains of the same 50Hz; and high-frequency filter capacitor is mainly used in switching power supply after rectification filter, the frequency of several thousand Hz to several Million Hz. When we use low-frequency filter capacitor for high-frequency circuit, due to low-frequency filter capacitor high-frequency characteristics of poor, it is high frequency charge and discharge resistance is large, the equivalent inductance is high, so in use because of the electrolyte Frequent polarization and produce greater heat, and the higher the temperature will make the internal electrolysis of the capacitor gasification, the capacitor pressure increases, eventually leading to the capacitor drum and burst.
More inductors in www.xp-elec.com
