Video baluns
work to convert a balanced electrical line to an unbalanced line and vice versa. Balanced lines have two conductors and equal currents in opposing directions, while unbalanced lines only have one conductor and a current returning through a common ground.
Function
An unbalanced video signal is transformed by the balun to a balanced frequency originating from a different cable. Video baluns come in pairs with one being responsible for converting from unbalanced to balanced and another to convert the signal back.
Features
Balancing the frequency through video baluns transmits a stronger signal and prevents signal interference.
Passive and Active
There are passive and active video baluns and only the latter requires power to operate.
Applications
Common applications of video baluns exist in BNC or coaxial cable, security and surveillance systems, closed circuit television (CCTV) systems, home theaters and televisions, computer monitors and laptops, DVD players, USB devices and unshielded twisted pair (UTP) cable.
Product
Balun is also the name of a product in electronics that performs the conversion function while transmitting a video signal to an additional source.
Tags: video baluns, video signal