A. Kawamura et al., WIRELESS TRANSMISSION OF POWER AND INFORMATION THROUGH ONE HIGH-FREQUENCY RESONANT AC LINK INVERTER FOR ROBOT MANIPULATOR APPLICATIONS, IEEE transactions on industry applications, 32(3), 1996, pp. 503-508
A contactless decentralized power supply is proposed with communicatio
n capability through only one transformer, A prototype of wireless tra
nsmission system of power and information (WTPI system) was built, and
the two-axis position controls of servo motors were achieved by trans
ferring the power and signal through one rotatable high-frequency tran
sformer, The proposed concept can be applied for robotics and numerica
l control (NC) machines.