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4 Cards in this Set
- Front
- Back
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What is RC formulas? |
vc(t) = V capastor (0) e-^1/RC)+ Vsource * (1 - e^(-t/RC))
I(t) = {[Vs - Vc(0)]/ R}e-t/RC VR(t) = i(t) R = [V - vc(0)]e-t/RC |
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What is the formulas of RL transient? |
I(0)= I(0)e^Rt/L + V/R (1 - e^-Rt/L)
UR(t) = i(t)R = i(0) Re^-Rt/L + V(1 - e^-Rt/L
vI(t) = L (di/ dt) = - i(0) Re^-Rt/L + Ve^-Rt/L |
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Parallel and series circuits at resonance frequency |
For frequencies below the resonant frequency, a series-RLC circuit will be capacitive (leading) in nature Above the resonant frequency, the circuit will be inductive (lagging) in nature. For frequencies below the resonant frequency, a parallel RL.C circuit will be inductive (lagging) in nature. Above the resonant frequency, the circuit will be capacitin (leading) in nature.
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When a circuit become resonant? |
Circuits can become resonant in two ways. -If the frequency of the applied voltage is fixed, the elements must be adjusted so that the capacitive reactance cancels the inductive reactance (i.e., X1 + Xc=0). -If the circuit elements are fixed, the frequency must be adjusted. |
