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    • 17. 发明申请
    • RESONANT POWER SUPPLY WITH SELF TUNING
    • 谐振电源自调谐
    • WO2015038010A1
    • 2015-03-19
    • PCT/NZ2014/000196
    • 2014-09-10
    • AUCKLAND UNISERVICES LIMITEDBOYS, John TalbotCOVIC, Grant Anthony
    • BOYS, John TalbotCOVIC, Grant Anthony
    • H02M1/34
    • H02M7/537H02M1/34H02M1/36H02M1/42H02M1/44H02M2007/4815
    • This invention relates to current-fed resonant inverters for electrical power applications to change direct current (DC) into alternating current (AC). One application of the invention is to power supplies for inductive power transfer (IPT) systems. There is provided a resonant inverter including an input for supply of current from a DC power source (208), a resonant circuit including two coupled inductive elements (205, 206) and a tuning capacitance (204), the inductive elements being arranged to split current from the power source; a first switching means comprising two switching devices (200, 201) operable in substantially opposite phase to alternately switch current from the power source into the inductive elements; a second switching means (504A1-n, 504B1-n) to selectively switch one or more control capacitances (510A1-n, 510B1-n) into or out of the resonant circuit dependent on a power factor of the resonant circuit.
    • 本发明涉及用于电力应用的电流馈送谐振逆变器,以将直流(DC)改变成交流(AC)。 本发明的一个应用是用于感应功率传输(IPT)系统的电源。 提供了一种谐振逆变器,其包括用于从DC电源(208)提供电流的输入端,包括两个耦合的感应元件(205,206)和调谐电容(204)的谐振电路,所述电感元件被布置成分开 电源电流; 第一开关装置,包括两个开关装置(200,201),其基本相反的相位工作,以将电流从电源交替地切换到电感元件中; 第二开关装置(504A1-n,504B1-n),用于根据谐振电路的功率因数选择性地将一个或多个控制电容(510A1-n,510B1-n)切换到谐振电路中。