What is Balun?

Balance to uneven (Balun) is a transformer that changes the impedance configuration and the connection of the available signal. Electric and electronic circuits will use unbalanced configuration in their simplest forms where the signal is available in one signal wire and conventional wire. For better performance, the signal can be sent via the conductor via the balanced connection configuration, where the signal is available in two wires, each with a signal, and therefore up to three wires can be used, including a conventional wire. In a balanced configuration, there are two signal wires and the optional common signal path, which is usually grounded by a defined resistance.

Balun is very similar to a classic transformer. The balanced input is the primary winding, while the secondary winding will have one signal conductor and a common connection. In the antenna transformer, which is a transformer of the transmission line, it can be an outdoor antenna dipole with two outputs are both signal wires so this setting canUse an antenna of a balanced type that is considered to be two wires running parallel. This cable is terminated in a two -wire balun, while the output is usually an unbalanced output of 75 Ohm, which is a coaxial cable connector to the rear of the receiver. The setting uses a small balun, which is two several swivel windings on a ferrite bead or a small ferrit core.

For radio, the Balun is used to hand over radio frequency signals from balanced sources such as dipoles and loops antennas for unbalanced devices such as coaxial cables and coaxial cable ports found in receivers and transmitters. The use of radio and video can be used to change the impedance of interconnected circuits and can set phase characteristics depending on frequency as a delay. The effect occurs as a good signal quality through higher power and/or reduced diportion.

in the sound are youDear microphones with three-term connectors as well as unbalanced microphones, which are terminated by a coaxial cable connector that has one wire in the inner core surrounded by a shield that is connected to a normal connection. If the connection of the shields is temporarily disconnected and the amplifier volume increases, when connecting the microphone is the noise that reaches the preamplifier input, can be heard as a sound. It is a focused transformation of unbalanced to balanced, which is implemented when the unbalanced microphone controls a balanced speaker system.

Autotransformer has only one input and output windings, so this type of transformer may not be as simple as a balun. The insulating transformer is commonly used as a balun due to its ability to insulate the input from the output circuit, allowing a balanced circuit to be maintained on the input side and an unbalanced circuit on the output side. In the Balun, the common line of the unbalanced secondary winding can also connect to the center -clicking of the primary winding, PTerry is this center tap.