source impedance


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source impedance

[′sȯrs im‚pēd·əns]
(electricity)
Impedance presented by a source of energy to the input terminals of a device.
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References in periodicals archive ?
Consequently, the source impedance matching can be achieved at the [Z.sub.S] plane, and the impedance level at the local plane can be lowered, which gives rise to a larger [g.sub.m] than the SNIM technique.
and Herrin, D., "Load Effect on Source Impedance Measurement Accuracy," SAE Technical Paper 2009-01-2041, 2009, doi:10.4271/2009-01-2041.
Hence, [Z.sub.o] is a function of the source impedance [Z.sub.s].
Source impedance. The magnitude of the source impedance can affect the noise performance of the feedback coulombmeter.
Some (mho) relays inherently adjust their tripping zones with respect to the source impedance (Elmore, 2000).
The AD8541/AD8542 CMOS rail-to-rail amplifiers offers 1 MHz bandwidth at a low power consumption of 45 [micro]A per amplifier--ideal for monitoring applications with high source impedance.
* source impedance has a minor impact above 250 Hz,
Input Impedance For good performance, the ratio of the input impedance of the measuring device to the source impedance should be at least 1,000 to 1.
To quickly find the best matching points, the source operating frequency is automatically optimized at first, and then a variable IM network in the transmitter circuit is used to match the system's input impedance to the source impedance. Through this approach, both the power transmission efficiency and the output power of the WPT system can be significantly improved.
The major problems caused by the mains harmonic currents are those associated with the harmonic currents themselves, and those caused by the voltage waveform distortion resulting from the harmonic currents flowing in a finite supply source impedance,[3], [4].
Source impedance is programmable from 10 [OMEGA] to 100 [OMEGA], and up to 50 test setups can be stored and recalled.