WIRELESS INDUCTIVE POWER TRANSMISSION Russian patent published in 2016 - IPC H04B5/00 

FIELD: electricity.

SUBSTANCE: invention relates to electrical engineering, particularly for power supply of portable and mobile devices from external power supply. Power transmitter (101) transmits power to power receiver (105) using inductive power wireless signal. Power transmitter (101) comprises inductance coil (103) to provide power signal and power signal generator (207) for inductance coil (103) exciting to provide power signal. Power receiver (105) comprises inductance coil (107) for reception of power signal and transmitter (305), which transmits data messages on power transmitter (101). Data are transmitted by means of power signal load modulation in repeating load modulation intervals, which are separated by intermediate time intervals. Power transmitter (101) transmits data on power receiver (105) by means of power signal modulation using message during intermediate time intervals, and power receiver demodulates data in these time intervals. Power transmitter (101) transmits one bit of message by its modulation during multiple intermediate time intervals, and power transmitter (101) receives them by means of demodulation during these time intervals.

EFFECT: invention provides effective power transmission and especially backward compatibility.

18 cl, 12 dwg