Add Favorite Set Homepage
Position:Home >> News

Products Category

Products Tags

Fmuser Sites

What does Low-Pass Filter mean?

Date:2018/11/29 11:20:16 Hits:

Definition - What does Low-Pass Filter mean?

Opposite in nature to a high-pass filter, a low-pass filter is a filter that allows signals with a frequency lower than the cut-off frequency (the frequency at which the output voltage is 70.7% of the source voltage) to pass through it. It also attenuates those signals whose frequency is higher than the cut-off frequency. In other words, low-pass filters help in removing short-term fluctuations, and provide a smoother form of signal.

FMUSER explains Low-Pass Filter

In electronics, a low-pass filter is basically implemented in two ways: inductive low-pass filter and capacitive low-pass filter. The difference between the two lies in the way the components are arranged. In inductive low-pass filters, the inductors are inserted in series with the load, whereas in capacitive low-pass filters, the resistors are inserted in series and a capacitor is inserted in parallel to the load.

Many applications make use of low-pass filters as they are known to filter noise from a circuit. In power supply circuits, they are used to remove AC ripples. In order to block harmonic emissions that could potentially cause interference, radio transmitters make use of low-pass filters. They are also used as inputs in audio applications and certain loudspeakers in order to prevent the high pitches that are not produced efficiently. Low-pass filters are also used as integrators in electronic circuits.

FMUSER accept OEM for Low pass filter and high pass filter, if you need to buy a Low/high pass filter for your transmitter, please feel free to contact us:

Maybe you will like:

FMUSER OEM High Pass Filter for 3kw FM Transmitter

How to design a Low pass filter

What is Band Pass Filter?

What is Low Pass Filter and how to build a Low Pass Filter?

Leave a message 

Name *
Email *
Code See the verification code? Click refresh!

Message List

Comments Loading...
Home| About Us| Products| News| Download| Support| Feedback| Contact Us| Service
FMUSER FM/TV Broadcast One-Stop Supplier
  Contact Us