SS1-9 Application of the Principle of LC Cancellation to Rotary Transformer Used in Ultrasonic Spindle
◎Yafei Gao,Myoungsik Nam,Masahito Shoyama(Kyushu University),Hideaki Fujita(Orii&Mec Corporation)
Rotary transformer is used to supply power to the non-contact ultrasonic spindle. However, if a rotary transformer is used like a common transformer, a voltage conversion rate becomes markedly lower than a turn ratio. In this paper, the problem is solved by using the principle of LC cancellation. And for not wasting power in the circuit, the method of realizing the voltage conversion ratio to be 1 is studied in this paper.