Electronic circuit with two signal transmission lines of matching impedance
In electrical engineering, a balanced circuit is electronic circuitry for use with a balanced line, or the balanced line itself. Balanced lines are a common method of transmitting many types of electrical signals between two points on two wires. In a balanced line, the two signal lines are of a matched impedance to help ensure that interference, induced in the line, is common-mode and can be removed at the receiving end by circuitry with good common-mode rejection. To maintain the balance, circuit blocks which interface to the line or are connected in the line must also be balanced.
Balanced lines work because the interfering noise from the surrounding environment induces equal noise voltages into both wires. By measuring the voltage difference between the two wires at the receiving end, the original signal is recovered while the noise is rejected. Any inequality in the noise induced in each wire is an imbalance and will result in the noise not being fully rejected. One requirement for balance is that both wires are an equal distance from the noise source. This is often achieved by placing the wires as close together as possible and twisting them together. Another requirement is that the impedance to ground (or to whichever reference point is being used by the difference detector) is the same for both conductors at all points along the length of the line. If one wire has a higher impedance to ground it will tend to have a higher noise induced, destroying the balance.
electrical engineering, a balancedcircuit is electronic circuitry for use with a balanced line, or the balanced line itself. Balanced lines are a common method...
telecommunications and professional audio, a balanced line or balanced signal pair is an electrical circuit consisting of two conductors of the same type...
each of the two legs of the balancedcircuit in the center of the star. To a magnetic field, both legs of the balancedcircuit appear to be in the exact...
form a circuit that can carry an audio signal. The term balanced comes from the method of balancing the impedance of each wire in the circuit; the line...
signalling may be referred to as balanced, but this term is more appropriately applied to balancedcircuits and balanced lines which reject common-mode...
return path for current Analog circuit, uses continuous signal levels Balancedcircuit, paths are impedance-matched Circuit analysis, the process of finding...
integrated circuits) that require power. Further, topologies may be implemented either in unbalanced form or else in balanced form when employed in balanced circuits...
ground at all. Unbalanced circuits are to be contrasted to balancedcircuits where the transmission paths are impedance balanced (the impedances are identical)...
single circuit are twisted together for the purposes of improving electromagnetic compatibility. Compared to a single conductor or an untwisted balanced pair...
α(alpha)-x balancedcircuit, that used in its high power amplifier along with the so-called double diamond differential, another patent for balanced driver...
telecommunications, balancedcircuits are usually required, such as with the twisted pair format. The T pad is intrinsically an unbalanced circuit. However, it...
microphones, while being harmless to balanced microphones that aren't designed to consume it, since the circuit balance prevents any substantial DC from...
representation of signals. The basis of a Zobel network is a balanced bridge circuit as shown in the circuit to the right. The condition for balance is that; Z...
unbalanced tuner circuits described in the preceding main section into a balanced version of the same circuit (see balancedcircuit). The diagram at the...
Wheatstone bridge is an electrical circuit used to measure an unknown electrical resistance by balancing two legs of a bridge circuit, one leg of which includes...
components in the output. A single balanced mixer is arranged with one of its inputs applied to a balanced (differential) circuit so that either the local oscillator...
can be characterized with a particular contamination delay. Well-balancedcircuits will have similar speeds for all paths through a combinational stage...
a balancedcircuit or even a double-balancedcircuit. They are readily manufactured as monolithic integrated circuits or hybrid integrated circuits. They...
exactly once (allowing for revisiting vertices). Similarly, an Eulerian circuit or Eulerian cycle is an Eulerian trail that starts and ends on the same...
with three to seven connector pins, and are often employed for analog balanced audio interconnections, AES3 digital audio, portable intercom, DMX512 lighting...
V_{5}={\frac {R_{5}}{R_{th}+R_{5}}}\times V_{th}} Phantom circuit - a use of balanced bridge circuits in telephony Lattice filter - an application of bridge...
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