Recent Posts Tagged With 'resonance'

• Q and bandwidth of a resonant circuit

  Posted on Wednesday July 30th, 2008 at 08:34 in resonance

  The Q, quality factor, of a resonant circuit is a measure of the “goodness” or quality of a resonant circuit. A higher value for this figure of merit correspondes to a more narrow bandwith, which is desirable in many applications. More formally,...

• Resonance in series-parallel circuits

  Posted on Wednesday July 30th, 2008 at 08:33 in resonance

  In simple reactive circuits with little or no resistance, the effects of radically altered impedance will manifest at the resonance frequency predicted by the equation given earlier. In a parallel (tank) LC circuit, this means infinite impedance at ...

• Applications of resonance

  Posted on Wednesday July 30th, 2008 at 08:32 in resonance

  So far, the phenomenon of resonance appears to be a useless curiosity, or at most a nuisance to be avoided (especially if series resonance makes for a short-circuit across our AC voltage source!). However, this is not the case. Resonance is a very v...

• Simple series resonance

  Posted on Wednesday July 30th, 2008 at 08:25 in resonance

  A similar effect happens in series inductive/capacitive circuits. (Figure below) When a state of resonance is reached (capacitive and inductive reactances equal), the two impedances cancel each other out and the total impedance drops to zero! ...