WIRELESS POWER TRANSMISSION DEVICE, WIRELESS POWER RECEPTION DEVICE, AND WIRELESS POWER TRANSMISSION and RECEPTION SYSTEM COMPRISING SAME

A wireless power reception device for receiving power from a power transmission device by using magnetic resonance coupling without contact, the wireless power reception device comprising:

• a resonant circuit including a matching circuit and a power reception coil;
• a rectifying circuit configured to rectify a high-frequency reception power signal, and located at a rear end of the resonant circuit;
• a voltage stabilization circuit configured to stabilize a rectified output voltage, and located at a rear end of the rectifier circuit;
• and
• a direct-current (DC)-to-DC conversion circuit configured to output a predetermined voltage from a stabilized voltage, and located at a rear end of the voltage stabilization circuit.