| 摘要 |
<p>A system and method for controlling operation of a transducer circuit, e.g., including an acoustic transducer arranged to cause cavitation in a liquid contained in a vessel located remote from the transducer. A load current of a transformer used to generate a drive signal for the transducer may be controlled to vary sinusoidally, to have a reduced or eliminated 3 rd harmonic mode and/or to vary between three discrete modes including a forward current mode, a zero voltage loop current mode, and a freewheel current mode. An inverter circuit may be used to control the load current, e.g., so that the load current flows in a closed loop during portions of the control cycle.</p> |
