NON-CONTACT POWER SUPPLY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a power supply unit and a power reception unit capable of reducing the size.SOLUTION: A micro control unit (MCU) 3 has at least a first frequency and a second frequency as a drive frequency for an inverter circuit 2. The MCU 3 performs a frequency shift keying (FSK)on a data by switching the drive frequency between the first frequency and the second frequency and transmits the same to an MCU 7. The MCU 7 demodulates the data based on the frequency of an induction voltage V2 which is generated on a secondary coil L2 in a second resonance circuit 4 due to an electromagnetic induction effect at the first frequency and the second frequency.SELECTED DRAWING: Figure 1