Hybrid wireless power transmitting system and method therefor

A hybrid wireless power transmitting apparatus configured to transmit wireless power signals based on magnetic resonance and magnetic induction, the apparatus comprising:

• an inductive power transmitting unit configured to transmit a wireless power signal based on the magnetic induction;
• a magnetic resonant power transmitting unit configured to transmit a wireless power signal based on the magnetic resonance;
• and
• a controller configured to transmit a first object detection signal via the inductive power transmitting unit and a second object detection signal via the magnetic resonant power transmitting unit alternatively, to select one of the inductive power transmitting unit and the magnetic resonant power transmitting unit based on an inductive response signal and a resonant response signal corresponding to the first object detection signal and the second object detection signal respectively, to operate the selected power transmitting unit, and to control the transmission of a wireless power signal via the selected power transmitting unit.

A hybrid type wireless power receiving apparatus comprising:

• a receiving coil configured to receive an inductive power signal;
• an antenna configured to locate around the receiving coil and to receive a resonant power signal;
• a rectifying unit configured to generate rectified power by rectifying an alternative power generated from the inductive power signal and the resonant power signal;
• a converter configured to convert the rectified power;
• a voltage stabilization circuit connected between the rectifying unit and the converter;
• and
• a receiving controller configured to control supply of the rectified power to the voltage stabilization circuit if the resonant power signal and the inductive power signal are received at an initial stage, to control supply of the rectified power to the converter after turning off the voltage stabilization circuit if a power rectified by the resonant power signal and the inductive power signal is determined to be within a reference range.

A wireless power receiving apparatus based on magnetic resonance comprising:

• an antenna configured to receive a resonant power signal;
• a variable condenser connected to the antenna;
• a rectifying unit configured to generate a rectified power by rectifying an alternative power generated from the resonant power signal;
• a converter configured to convert the rectified power;
• a resonant receiving controller configured to control to receive an initial resonant power signal at a receiving frequency separated from a resonant frequency by adjusting the variable condenser if the antenna detects a magnetic resonant based wireless power transmitting apparatus.