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公开(公告)号：US12113443B2
公开(公告)日：2024-10-08
申请号：US17933625
申请日：2022-09-20
CPC分类号： H02M3/1584 , H02M1/0009
摘要： A multi-converter power supply system includes a plurality of cell converters, a common node to which an individual output terminal of each of the plurality of cell converters is connected, a current waveform signal generation circuit that generates a current waveform signal corresponding to a current waveform flowing through an individual inductor, a current average signal generation circuit that generates a current average signal by averaging temporal changes that the current waveform signal has in a switching period of a switching control circuit, and an instrumentation amplifier that receives input of a current common signal obtained from the common node and the current average signal and that generates an individual current feedback signal to be fed back to the switching control circuit.
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公开(公告)号：US12101029B2
公开(公告)日：2024-09-24
申请号：US17933565
申请日：2022-09-20
发明人： Norikazu Sakamoto , Osamu Miki , Tatsuya Hosotani
CPC分类号： H02M3/158 , H02M1/0067
摘要： A multi-converter power supply system includes a plurality of cell converters, a common node to which an individual output terminal of each of the plurality of cell converters is connected, a current waveform signal generation circuit that generates a current waveform signal corresponding to a current waveform flowing through an individual inductor, and a first instrumentation amplifier that receives input of an individual output voltage signal obtained from the individual output terminal and the current waveform signal and that outputs a signal for comparison with a current common signal shared by a plurality of switching control circuits. The current waveform signal and the individual output voltage signal that are input to the first instrumentation amplifier are formed with reference to a potential of the common node.
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3.发明授权公开(公告)号：US11855541B2
公开(公告)日：2023-12-26
申请号：US17470800
申请日：2021-09-09
CPC分类号： H02M3/33507 , H02M1/0058 , H02M3/1584 , H02M3/33569
摘要： A plurality of power conversion units each include an inductor, a switching circuit, and a PWM control IC. An MPU outputs control signals to the plurality of power conversion units. Output parts of the plurality of power conversion units are connected to an output terminal in a parallel manner. Operating number signal generating circuits of feedback signal generating circuits generate an operating number signal Sop on the basis of individual current signals based on inductor currents in the plurality of power conversion units, and output the operating number signal to the MPU. The MPU sets operations of the plurality of power conversion units on the basis of the operating number signal, and outputs the control signals including the settings of the operations of the power conversion units.
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