Filter circuit

Alternating current through the diode rectifier, the direct current is only the generalized direct current.

Although the current direction is constant, the voltage magnitude is still changing at any time, and there is still a big gap between the DC power required by the electronic equipment. Filter circuit is needed to filter the wave components in the generalized direct current.

The filter circuit is divided into high-pass filtering, low-pass filtering, band-pass filtering, etc.

The filtering of DC power supply needs low-pass filter circuit.

The core components of the filter circuit are capacitors and inductors.

The inductance is made of copper wire, so the price is high, the volume is big, and the weight is big, so it is only used in the high frequency circuit or the special big current situation.

Capacitor filter is often used in the DC power supply of electronic equipment.

the larger the capacitance of the filter capacitor, the better the filtering effect; the bigger the load resistance, the better the filtering effect. That is, the filtering effect depends on the product of the filter capacitor C and the load R, and generally takes the TRC ( 3 ~ 5 ) T / 2, and the T is the period of voltage fluctuation, the cycle is the reciprocal of the frequency.

Allicdata Electronic specialize in the production of  different filters, if you are sourcing the products, please contact us, we will try our best to solve it for you.

 Feed Through Capacitors filter:YFF21PC1C474MT000N