xeratule
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Hi,
I want to match two piezoelectric transducer which are at the secondaries of two parallel transformers. I can match them while adding series inductor (series resonance) to the piezos at the secondaries of the transformers. What I want is to match them with one inductor series to the transformers. Please see the attached image. I can do the first configuration and it works fine. Could second configuration do the same job too?
In the first configuration the series capacitor to the tranfsormers (C1) is to compansate the leakage inductance of the transformers. In the second configuration I need to calculate both the leakage inductance and capacitive effects of the piezoelectric transducers and select a suitable inductor (L3) to match them both. If achievable how could I calculate L3?
ps: the main bus is high power @ 25khz pwm

I want to match two piezoelectric transducer which are at the secondaries of two parallel transformers. I can match them while adding series inductor (series resonance) to the piezos at the secondaries of the transformers. What I want is to match them with one inductor series to the transformers. Please see the attached image. I can do the first configuration and it works fine. Could second configuration do the same job too?
In the first configuration the series capacitor to the tranfsormers (C1) is to compansate the leakage inductance of the transformers. In the second configuration I need to calculate both the leakage inductance and capacitive effects of the piezoelectric transducers and select a suitable inductor (L3) to match them both. If achievable how could I calculate L3?
ps: the main bus is high power @ 25khz pwm

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