electrical engineering, the output impedance of an electrical network is the measure of the opposition to current flow (impedance), both static (resistance)...

input impedance is the impedance of the instrument seen by the circuit to be measured. If the load network were replaced by a device with an output impedance...

electrical engineering, impedance matching is the practice of designing or adjusting the input impedance or output impedance of an electrical device for...

feedback, an op amp circuit's characteristics (e.g. its gain, input and output impedance, bandwidth, and functionality) can be determined by external components...

drawing current or affecting it. When the output of a device (consisting of the voltage source VS and output impedance ZS in illustration) is connected to the...

have lower input impedances, as low as 15 kΩ. Since it is possible to use high output impedance devices due to the high input impedance, other factors may...

1941. Only the magnitude of the loudspeaker impedance is used, and the power amplifier output impedance is assumed to be totally resistive. In typical...

its electrical impedance to provide a more ideal source (with a lower output impedance for a voltage buffer or a higher output impedance for a current...

often occurs when using low impedance headphones with consumer electronics with insufficiently low output impedance (see impedance discussion below). Most...

reduced distortion levels (and also gave other benefits such as reduced output impedance). The introduction of the Williamson amplifier in 1947, which was extremely...

does not necessarily refer to the output voltage of the source device; it also depends on its output impedance and output power capability. Consumer electronic...

provides high input impedance. The circuit shown computes the difference of two voltages, multiplied by some gain factor. The output voltage V out = ( R...

second measure is the output impedance of the current source or equivalently its inverse, the output conductance. This impedance affects stage gain when...

input impedance, medium/low output impedance, good clipper (with a not-too-long tail), non-inverting (EDSAC contained no inverters!) and large output voltage...

amplifier. Bilateral amplifier input impedance depends on the load, and output impedance on the signal source impedance. All amplifiers are bilateral to some...

raises input impedance, and reduces distortion, it predates the invention of the negative feedback amplifier and does not reduce output impedance or increase...

driver is its electrical impedance as a function of frequency. It can be visualized by plotting it as a graph, called the impedance curve. The most common...

In electrical engineering, impedance is the opposition to alternating current presented by the combined effect of resistance and reactance in a circuit...

based on designs with relatively low output impedance. The impedance of headphones is of concern because of the output limitations of amplifiers. A modern...

transformer output, provide a balanced output that is "floating" with respect to ground; the impedance to ground from each side of the output is high. More...

there is little coupling from output to input. The characteristic impedance Z 0 {\displaystyle Z_{0}} of the input and output transmission lines, usually...

the following characteristics: higher input–output isolation, higher input impedance, high output impedance, higher bandwidth. The use of a cascode (sometimes...

the output impedance of the circuit is increased, because the feedback involving R2 forces use of a larger voltage to drive a given current. Output resistance...

Nominal impedance, approximate designed impedance Impedance matching, the adjustment of input impedance and output impedance Mechanical impedance, a measure...

called impedance bridging. In this configuration the output impedance of the microphone should be negligible in comparison with the input impedance of the...

common collector amplifier's low output impedance allows a source with a large output impedance to drive a small load impedance without changing its voltage...

the characteristic impedance of a cable or other form of transmission line. The nominal value of the input, output or image impedance of a port of a network...

sound reinforcement systems to connect a high output impedance unbalanced output signal to a low-impedance, microphone level, balanced input, usually via...

transconductance, higher output resistance and lower β that also must be considered. A practical solution to this low-input-impedance problem is to place a...

Pros: Can increase or decrease input impedance (depending on type of feedback). Can increase or decrease output impedance (depending on type of feedback)....