Circuit for supplying resonant operated piezoceramic transducer with superimposed d.c. voltage provides direct voltage directly from intermediate voltage circuit of current converter

摘要

The electronic power circuit supplies resonant operated piezoceramic transducer with a.c. voltages in the ultrasonic range and a superimposed direct voltage for protection against depolarization. The direct voltage is provided directly from the intermediate voltage circuit of a current converter.