| 摘要 |
PROBLEM TO BE SOLVED: To achieve a safe operation even if a large voltage is inputted in field resonance type wireless power feeding. SOLUTION: Power is transmitted from a feeding coil L<SB>2</SB>to a receiving coil L<SB>3</SB>by magnetic resonance. An oscillator 202 alternately turns ON/OFF switching transistors Q<SB>1</SB>and Q<SB>2</SB>to cause an AC current I<SB>S</SB>of drive frequency f<SB>o</SB>to flow in a transformer T2 primary coil L<SB>b</SB>. The AC current I<SB>S</SB>causes an AC current I<SB>1</SB>to flow in an exciting coil L<SB>1</SB>and causes an AC current I<SB>2</SB>to flow in the feeding coil L<SB>2</SB>. COPYRIGHT: (C)2011,JPO&INPIT |
