| 摘要 |
PROBLEM TO BE SOLVED: To provide a filter for an electric field coupling parallel resonance type power supply system having high power transmission efficiency.SOLUTION: In a parallel resonance type power supply system, a BPF based on a band pass type filter composed of three elements has an input terminal, an output terminal, and a parallel resonant circuit. A coupling inductance and a coupling capacitance connect an input terminal resonator with an output terminal resonator. The coupling capacitance is composed of two coupling inductance and two coupling capacitors connected in series. An inductor is provided between a terminal that is not connected with input/output terminal of the two coupling capacitors and the ground, resulting in a small capacitance. The filter has a balanced type configuration. |
