SYSTEM AND METHOD FOR TRIGGERING POWER TRANSFER ACROSS AN INDUCTIVE POWER COUPLING AND NON RESONANT TRANSMISSION

摘要

A triggerable power transmitter for power transmission from a primary coil to an inductively coupled secondary coil in a power receiver has a primary coil; a driver for electrically driving the primary coil; a probing coil receives analog signals indicative of resonance properties of the primary coil; analog filters may be used to filter frequencies, and a processor capable of generating digital information in response to the analog signal and determining if said primary coil is coupled to a secondary coil based on the digital information, and triggering power from the primary coil to said secondary coil when said primary coil is inductively coupled to said secondary coil. A resistor may be selectably connected in series with the primary coil and shorted out when power is transmitted.

主权项

1. A triggerable power transmitter for power transmission from a primary coil in the power transmitter to an inductively coupled secondary coil in a power receiver comprising:
a primary coil, capable of being inductively coupled to a secondary coil in a power receiver; a driver, capable of electrically driving said primary coil; a probing coil, capable of receiving analog signals indicative of resonance properties of said primary coil; and a processor, capable of generating digital information in response to said analog signal and capable of: determining if said primary coil is coupled to a secondary coil based on said digital information, and controlling said driver to transmit power from said primary coil to said secondary coil when said primary coil is inductively coupled to said secondary coil.