filter capacitor


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filter capacitor

[′fil·tər kə‚pas·əd·ər]
(electricity)
A capacitor used in a power-supply filter system to provide a low-reactance path for alternating currents and thereby suppress ripple currents, without affecting direct currents.
References in periodicals archive ?
Insulator materials with high dielectric constant (k) play a vital role in modern semiconductor devices and are used for insulating gates from channels in transistors and decoupling filter capacitor to protect microcircuits from unwanted noise.
where [i.sub.idq], [V.sub.dq], and [i.sub.Gdq] = [i.sub.gdq] + [i.sub.Ldq] are inverter current, filter capacitor voltage, and grid side current components.
When choosing the parameters of the filter capacitor banks, a complex solution of a whole range of issues is necessary including ensuring their reliable operation when the parameters of both the filters themselves and the power supply network are disturbed, sources of harmonic distortion from nominal ones; the absence of resonant phenomena at the frequencies of both higher harmonics and interharmonics.
The capacitor module consists of the smoothing capacitor and the filter capacitor (Fig.
However, the ESR of this filter capacitor causes high level thermal stress from the high switching pulsed current.
The DC voltage on the filter capacitor is level shifted by the factor [R.sub.Cf] / ([R.sub.Cf] + [R.sub.f]) in the presence of resistor [R.sub.Cf], as shown in Figure 6.
The first one is to detect the current of filter capacitor and generate a virtual damping resistor [17]-[18].
The logic level on pin 26 controls the cut-off frequency of the first-order bit rate for a given bit rate filter capacitor at pin 27, allowing the cut-off frequency to be changed between [f.sub.C], 2[f.sub.C] and 0.43[f.sub.C] through the logic level on pin 26.
The ASC Capacitor HCO/HCG Single Phase AC Filter Capacitor is engineered for input and output filtering in UPS, Motor Drives, LC/LCL Filtering, Wind and Solar Power and other power conversion technologies.
Of course the other integral objects such as increasing the miration of filter in a particular frequency, decrease of the radioactive power with transfer of filter capacitor, decrease of filter loses, ...
The part integrates all converter functionality including MOSFET switches, control and compensation, and the inductor, in a 6 mm X 4 mm X 1.1 mm QFN package, while requiring only a single input and single output ceramic filter capacitor. The device has a wide 2.4V to 5.5V input range and has a VID programmable output range from 0.6V to 3.3V.