公开(公告)号：US20200220478A1

公开(公告)日：2020-07-09

申请号：US16645097

申请日：2018-08-23

申请人： NETUREN CO., LTD.

发明人： Takahiko KANAI ,  Yue YANG

IPC分类号： H02M7/493 ,  H01F27/28

摘要： An output current synthesizer that synthesizes output currents output from a plurality of power inverter circuits converting direct current power to alternating current power and outputs the synthesized output currents as synthesized current having a predetermined frequency, the output current synthesizer includes a pair of conductors which is provided with each of the power inverter circuits and to which the output currents of the power inverter circuits flow, a reactor which is provided on each of the pairs of conductors and generates magnetic flux corresponding to a difference between values of currents flowing to the pairs of conductors to reduce the difference between the values of currents, a pair of conductive members to which the pairs of conductors are connected in parallel, and a pair of output terminals which is provided on the pair of conductive members and output the synthesized currents.

公开(公告)号：US20200284847A1

公开(公告)日：2020-09-10

申请号：US16758147

申请日：2018-08-23

申请人： NETUREN CO., LTD.

发明人： Takahiko KANAI ,  Yue YANG

IPC分类号： G01R31/42 ,  H02M5/458 ,  H02M1/32

摘要： A load abnormality detecting circuit for an inverter to detect abnormality of a load during an operation of the inverter which has a self-arc-extinguishing element as a switching element and a phase synchronizing loop controlling an output frequency to be a resonance frequency of the load, the load abnormality detecting circuit includes a phase shift detection part that detects a phase shift between a gate voltage signal controlling ON/OFF of the self-arc-extinguishing element and an output current of the inverter which is applied to the load, and that sends a first abnormal load signal based on the phase shift.