Dynamic wireless charging apparatus and parameter acquiring method thereof
2015
The invention discloses a dynamic wireless charging apparatus and a parameter acquiring method thereof. The dynamic wireless charging apparatus comprises an energy emitting module and an energy receiving module. The energy emitting module comprises a high-frequency inversion unit, an LC filter unit, a first compensation unit, and a power emitting coil which are successively connected. The high-frequency inversion unit converts DC power into high-frequency AC power. After the high-frequency AC power is adjusted by the LC filter unit and the first compensation unit, energy is emitted in a high-frequency magnetic field coupling mode. The energy receiving module comprises a power receiving coil, a second compensation unit, and an uncontrolled rectification unit which are successively connected, and converts received high-frequency AC power into DC power supplied to a load. The dynamic wireless charging apparatus may automatically adjust the current of a primary-side power coil according to the mutual inductance coupling degree of the power coil so as to obtain a characteristic maintaining stable output power, is suitable for dynamic wireless charging application occasions with a wide bias, and has high transmission efficiency and a soft switch characteristic. In addition, compensation topology provides a primary side inversion power supply with a zero-load current-limiting protection function.
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