Limiter
This article needs additional citations for verification. (February 2024) |
In electronics, a limiter is a circuit that allows signals below a specified input power or level to pass unaffected while attenuating (lowering) the peaks of stronger signals that exceed this threshold. Limiting is a type of dynamic range compression. Clipping is an extreme version of limiting.
Limiting is any process by which the amplitude of a signal is prevented from exceeding a predetermined value.
Limiters are common as a safety device in live sound and broadcast applications to prevent sudden volume peaks from occurring. Limiters are also used as protective features in some components of
damage.Types
Limiting can refer to a range of treatments designed to limit the maximum level of a signal. Treatments in order of decreasing severity range from
Usage
In aerospace and military
For military two-way radio sets and aircraft VHF voice telecommunications, the voice limiter is known as a
In audio production
PIN diodes can be used in limiter circuits to reflect the energy back to the source or clip the signal.[2]
FM radio
An
Generally, FM demodulators are not affected by amplitude variations, since the baseband is contained in the
In utilities
In Canada, while the cold weather rule is in affect, limiters are used to lower the capacity of houses of non-paying customers. The limiters allow enough power to run a furnace and a few lights. Tampering with the limiter is illegal.[4]
See also
References
- ^ "Limiter". Audacity Team. Retrieved 2018-05-22.
- ^ "PIN Limiter Diodes in Receiver Protectors" (PDF). Skyworks. Retrieved 2015-07-28.
- ISBN 978-0-240-81896-2.
- ^ Alberta, Government of. "Utilities Disconnection". ucahelps.alberta.ca. Retrieved 2024-02-16.
This article incorporates public domain material from Federal Standard 1037C. General Services Administration. Archived from the original on 2022-01-22. (in support of MIL-STD-188).