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公开(公告)号：US20200044457A1
公开(公告)日：2020-02-06
申请号：US15524994
申请日：2015-08-18
发明人： Hiroyuki Miyake , Seisaku Oosako , Masaki Ono , Yasuyuki Yamada , Yuichi Takeda
IPC分类号： H02J5/00
摘要： A converter includes a converter circuit including a rectifying section to rectify an alternating current (AC) voltage and a smoothing section to smooth a direct current (DC) voltage rectified by the rectifying section, a diagnostic device configured to diagnose an abnormality of the converter circuit, an inrush current preventing section configured to prevent inrush current from being supplied to the smoothing section, and a switching section configured to supply the AC voltage to the converter circuit through a path different from a voltage supply path of the inrush current preventing section, wherein the diagnostic device determines an abnormal region of the converter circuit by controlling the inrush current preventing section and the switching section.
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公开(公告)号：US10177702B2
公开(公告)日：2019-01-08
申请号：US15216355
申请日：2016-07-21
摘要： A conduction noise filtering circuit configured to inhibit conduction noise is provided. The conduction noise filtering circuit includes a first coil part configured to be supplied with alternating current (AC) power, a second coil part configured to be connected to the first coil part in series, a detector configured to detect common mode noise from at least one selected from the first coil part and the second coil part, and a capacitor configured to supply a current offsetting common mode noise between power lines connecting the first coil part and the second coil part in series.
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公开(公告)号：US10734910B2
公开(公告)日：2020-08-04
申请号：US16177194
申请日：2018-10-31
IPC分类号： H02M5/458 , F24F11/88 , H02M1/12 , H03K7/08 , H02M7/217 , H02M1/42 , H02M1/44 , H02M1/00 , H02M7/219 , H02M7/5387 , H02M7/06
摘要： Disclosed herein is an air conditioner including: a rectifier including a plurality of capacitors connected in series to each other, a switching device configured to control a flow of current supplied to the respective capacitors to charge or discharge the plurality of capacitors, a voltage detector configured to detect an output voltage of the plurality of capacitors, and a current detector configured to detect the current; and an inverter configured to generate alternating current by receiving an output voltage of the rectifier.
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公开(公告)号：US11088614B2
公开(公告)日：2021-08-10
申请号：US16612234
申请日：2018-05-08
摘要： A conductive noise suppressor for suppressing worsening of noise due to the frequency of conductive common mode noise is suppressed is provided in an embodiment of the disclosure. The suppressor includes a first coil part for detecting a noise current in a common mode flowing through a power supply line for supplying an alternating current, coils serially inserted on the power supply line, a second coil part including a coupling coil magnetically coupled to the coils and a current supplier for supplying a noise current detected by the first coil part and a current set for a voltage generated across the coupling coil to the coupling coil.
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公开(公告)号：US10541539B1
公开(公告)日：2020-01-21
申请号：US15524994
申请日：2015-08-18
发明人： Hiroyuki Miyake , Seisaku Oosako , Masaki Ono , Yasuyuki Yamada , Yuichi Takeda
摘要： A converter includes a converter circuit including a rectifying section to rectify an alternating current (AC) voltage and a smoothing section to smooth a direct current (DC) voltage rectified by the rectifying section, a diagnostic device configured to diagnose an abnormality of the converter circuit, an inrush current preventing section configured to prevent inrush current from being supplied to the smoothing section, and a switching section configured to supply the AC voltage to the converter circuit through a path different from a voltage supply path of the inrush current preventing section, wherein the diagnostic device determines an abnormal region of the converter circuit by controlling the inrush current preventing section and the switching section.
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