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1.发明授权公开(公告)号：US10250124B2
公开(公告)日：2019-04-02
申请号：US15524356
申请日：2016-01-22
发明人： Kosuke Nakano , Takuya Sakai , Hiroyasu Iwabuki
摘要： During regenerative control of an inverter circuit, when a path between a DC power supply and a smoothing capacitor is in a disconnection state, a control circuit of a power conversion device performs control while switching between first control in which upper switching elements within the inverter circuit are turned on and all lower switching elements are turned off and second control in which the lower switching elements are turned on and all the upper switching elements are turned off, every predetermined switching period.
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2.发明授权公开(公告)号：US10236750B2
公开(公告)日：2019-03-19
申请号：US15116379
申请日：2014-11-18
发明人： Yu Hirotani , Masatsugu Nakano , Hiroyuki Waku , Hiroyuki Akita , Koji Kise , Hiroyasu Iwabuki , Kosuke Nakano
摘要： A rotating electric machine with a built-in control device that can be downsized. The rotating electric machine with a built-in control device includes a rotor including a permanent magnet of sensor use provided on a rear side of a rotor shaft, a front side housing fixed with a first bearing supporting a front side of the rotor shaft, a motor frame including a rotor and a stator, a heat sink fixed with a second bearing supporting the rear side of the rotor shaft, a control substrate mounting a rotary sensor, a microcomputer, and a driving circuit. The microcomputer controls the driving circuit based on signals from the rotary sensor and drives a plurality of switching elements. At least one of a smoothing condenser and a noise reduction coil, connected to the switching elements, is arranged at a far rear side of the control substrate.
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公开(公告)号：US10038438B2
公开(公告)日：2018-07-31
申请号：US15303149
申请日：2015-05-27
IPC分类号： H03B1/00 , H03K3/00 , H03K17/567 , H02M1/00 , H02M1/08 , H02M7/48 , H01L29/16 , H01L29/20 , H03K17/0812 , H02M1/32 , H02M7/5387
CPC分类号： H03K17/567 , H01L29/1602 , H01L29/1608 , H01L29/2003 , H02M1/00 , H02M1/08 , H02M1/32 , H02M7/48 , H02M7/53875 , H03K17/04123 , H03K17/063 , H03K17/08122 , H03K17/20 , H03K2017/066
摘要： A driving circuit including: a voltage detector that detects the sum voltage of a positive bias voltage and a negative bias voltage, the negative bias voltage or the positive bias voltage; and a switching element that is connected to the control terminal of a power element and the negative side of a negative-voltage power supply; wherein, when the value of the detection target voltage becomes lower than a voltage setting value or when a voltage between the control terminal and the reference terminal in the power element increases in a state where the value of the detection target voltage is lower than the voltage setting value, the voltage detector turns on the switching element to thereby supply, between the above terminals in the power element, a voltage of 0V or lower.
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公开(公告)号：US10106189B2
公开(公告)日：2018-10-23
申请号：US15510086
申请日：2015-06-12
发明人： Hiroyasu Iwabuki , Kosuke Nakano
摘要： A motor drive control device for electric power steering includes: a switching element for supplying current to a motor; a smoothing capacitor for reducing ripple current due to the switching element; a control board on which a drive circuit for controlling the switching element and a control circuit capacitor are mounted; a control signal line for supplying a control signal from the control board to the switching element; an electric connection member electrically connecting the switching element and the smoothing capacitor; and a heatsink portion in which the switching element is arranged in an embedded manner, wherein the electric connection member is arranged between the switching element and the control board, and the control circuit capacitor and the smoothing capacitor are arranged in a space between the electric connection member and the control board.
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公开(公告)号：US10084388B2
公开(公告)日：2018-09-25
申请号：US15325949
申请日：2015-06-12
发明人： Keita Takahashi , Kazuki Sakata , Yoshiyuki Deguchi , Takuto Yano , Mamoru Takikita , Kazutoshi Awane , Koji Nakajima , Takao Mitsui , Kosuke Nakano , Masayoshi Tamura , Masashi Sakai
IPC分类号： H02M7/00 , H02M7/537 , H01L23/552 , H05K7/20 , H01L23/367 , H03H1/00 , H01L25/18
CPC分类号： H02M7/003 , H01L23/36 , H01L23/3675 , H01L23/552 , H01L25/07 , H01L25/18 , H01L2924/0002 , H02M7/48 , H02M7/537 , H03H1/00 , H03H2001/0085 , H05K7/209 , H01L2924/00
摘要： A power converter includes: a base conductor, an electrically heating member which is provided on the base conductor, a noise reduction capacitor of flat plate-shape in which via an insulator, a plurality of first electrodes and second electrodes are alternately layered, on one surface, the first electrode in an outermost layer is exposed and on another surface, the second electrode in an outermost layer is exposed, a relay conductor which is electrically connected to other members from the electrically heating member via the noise reduction capacitor, and the second electrode in an outermost layer of the noise reduction capacitor is face-joined to a face of the base conductor at a side where the electrically heating member is provided and the first electrode in an outermost layer and the relay conductor are face-joined.
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