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What is the use of active power filters?
An active filter is a type of analog electronic filter that uses active components such as an amplifier. Amplifiers included in a filter design can be used to improve the performance and predictability of a filter, while avoiding the need for inductors (which are typically expensive compared to other components). An amplifier prevents the load impedance of the following stage from affecting the characteristics of the filter. An active filter can have complex poles and zeros without using a bulky or expensive inductor.
Q factor of low pass filter?
The Q factor is describing how sharp the dropoff of the filter is relative to the pass band. Wikipedia has a decent writeup on Q factor. The more components you use to make the filter, and the lower the cutoff frequency, the higher the Q will be.
What are the types of harmonic filters in ups?
Basically they are of 2 types 1) Active filter - For low voltage network 2)Passive filter
What is use of cushion in hydraulic system?
to absorb the vibration damping.
Is a saw filter an active component?
No, SAW filters are completely passive devices. You cannot get gain from a SAW filter, and they obey the rules of reciprocity (i.e. S12 = S21).
What is the approximate peak overshoot for a unity feedback system with a damping factor 0.6?
0.0947
What is the approximate peak overshoot for a unity feedback system with damping factor 0.6?
0.0947
What is the Q factor in RLC circuit?
It is related to damping in the circuit using a resistor. Q is inversely proportional to the resistor(R). So if the value of resistance is high, there is a greater damping and the value of Q will be low. if resistance is low, there is small damping and Q will be high. when Q is high(low damping) the graph of voltage across resistor against frequency will be sharp at resonance and the bandwidth will be small when Q is low(high damping) thee graph will be less sharp as the bandwidth will be large. Go do some research on the graphs and the formula of Q factor to understand it better.
What is Impedance ratio?
Transformer Z-ratio = (Zpri / Zsec) = (Vpri / Vsec)2 It could also be the damping factor DF = Zload / Zsource The damping factor DF is the load impedance Zload (input impedance) divided by the the source impedance Zsource (output impedance).
Transfer function of series 2nd order lowpass filter?
Out = In / (1 + 2 s csi / omega + ( s / omega )2) where s is Laplace variable [s/rad] csi is the damping factor omega is the resonating frequency If you want to calculate the Vout/Vin ratio: ----L---- | C | ---------- csi = 0 (damping comes from resistive component) omega = 1/sqrt(LC)
What is negative damping?
It is the opposite of normal damping (oscillation decreases), so in negative damping to get even bigger oscillation.
How is light damping achieved?
The amplitude of resonant oscillations can be reduced by damping.Light damping reduces oscillations slowly.Heavy damping reduces oscillations quickly.Critical damping stops the oscillation within one cycle.The graph above shows light damping.
What has the author Francis Nelson Shen written?
Francis Nelson Shen has written: 'A quantitative comparison of active and passive damping for large space structures'
Applications of critical damping?
critical damping is when the amount of damping is large enough for the system to return toequilibrium as fast as possible without performing oscillations. Hope thatHELPED
What is the definition of viscous damping and viscous damping coefficient especially in Civil Engineering.?
== Answer }
What is geometric damping?
Geometric damping is also called radiation damping. It is defined as energy radiation into a surrounding medium. Damping is defined as energy dissipation property of structures and materials that are put through time-variable loading.
What is the use of active power filters?
An active filter is a type of analog electronic filter that uses active components such as an amplifier. Amplifiers included in a filter design can be used to improve the performance and predictability of a filter, while avoiding the need for inductors (which are typically expensive compared to other components). An amplifier prevents the load impedance of the following stage from affecting the characteristics of the filter. An active filter can have complex poles and zeros without using a bulky or expensive inductor.
