LC filter is used at high frequency because it can eliminate AC ripples with the highest efficiency than other filters and can provide a smooth DC signal as output. Why LC filters are used at high frequencyĪdvertisements Nowadays, more sensitive circuits, high-speed logic and more electrical noise at the high frequency require highly efficient filtering of noises for proper operations. LC pi filter can also be known as CLC filter due to its design or components in use. This filter is also known as a capacitor input filter because the output of the rectifier is directly fed into the capacitor, which is connected in parallel with the rectifier. The pi filter is a type of LC passive filter, which is constructed using an inductor and capacitor forming the shape of a greek letter (pie) that’s why it’s known as a pi filter. It can also be used as a high pass filter configuration. The Pi filter is majorly used as a low pass filter, which consists of three components. Image Credit: T type filter, SpinningSpark real life identity: SHA-1 commitment ba62ca25da3fee2f8f36c101994f571c151abee7, Lattice filter, unbalanced T, CC BY-SA 3.0 What is Pi type filter LC filters can be classified by different designs or configurations: An LC filter can be a high pass filter (HPF), low pass filter (LPF) or a bandpass filter (BPF). LC filter circuit is an LC circuit that is used as a filter, which consists of an inductor and capacitor LC filter can cut or pass signal from a certain frequency range.

The unique characteristics of the inductor and the capacitor are used to remove noise in a different configuration. This article will discuss about LC PI filter in detail.

Pi filter design calculator