ZVS driver can output huge amount of current into it's LC tank, can we say it is like a LC band pass filter?

Update:

billrussell42 Of course it is a parallel LC, but it draws huge amount of current, it's impedance is very VERY low.

Update 2:

Too many people answer without really knowing what they talk about.

Update 3:

"In figure 9 no. At resonance the tank has high impedance so the input signal reaches RL"

You do realize figure 9 is a band PASS filter, it has extremelly low impedance, practically 0.

Update 4:

Only at resonant frequency, of course.

4 Answers

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  • 6 months ago
    Favorite Answer

    NO ! BAND PASS FILTER SHORTS OUT THE SIGNALS WITHIN ITS BAND PASS FREQUENCIES. LC TANK CIRCUIT RESONATES AT A SPECIFIED FREQUENCY.

  • 6 months ago

    What exactly are we talking about here? A self oscillating push-pull resonant power converter?

    The 'tank' is a parallel network and if there is no secondary load, the current in the primary will be small. A load on the output will be reflected into the input and the appropriate amount of current will be induced in the primary network.

  • 6 months ago

    In figure 9 no. At resonance the tank has high impedance so the input signal reaches RL

    In figure 8, at resonance the LC has low impedance (let's say 0) so the current will be Vin/RL - not necessarily huge

  • 6 months ago

    No, it's more like a parallel resonant circuit

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