-
公开(公告)号：US10027248B2
公开(公告)日：2018-07-17
申请号：US15597177
申请日：2017-05-17
Inventor： Shoichi Hara , Atsushi Yamamoto , Taiki Nishimoto
IPC: H02M7/5387 , H02M7/48 , H02M7/12 , H02M3/158
Abstract: An electric power conversion circuit includes: a first leg including first and third switches; a second leg including second and fourth switches; a third leg including fifth and seventh switches; a fourth leg including sixth and eighth switches; a first reactor connected between a first node, in which the first and second legs are connected to each other, and a fifth node, in which the third and fourth legs are connected to each other; a second reactor connected between a second node to which the first and second legs are connected and a sixth node to which the third and fourth legs are connected; a first port terminal connected to the first node; a second port terminal connected to the sixth node; a third port terminal connected to a midpoint of each of the first and third legs; and a fourth port terminal connected to a midpoint of each of the second and fourth legs.
-
公开(公告)号：US09923486B2
公开(公告)日：2018-03-20
申请号：US15590090
申请日：2017-05-09
Inventor： Taiki Nishimoto , Atsushi Yamamoto , Shoichi Hara
IPC: H02M7/538 , H02M7/53862 , H02M7/5387 , H02M7/5395
CPC classification number: H02M7/53862 , H02M1/08 , H02M7/5387 , H02M7/5395 , H02M2001/0006
Abstract: An electric power conversion circuit includes: first through fourth port terminals; first through fourth switches that are connected with each other in a bridge configuration; fifth through eighth switches that are respectively connected in parallel with the first through fourth switches; first through eighth diodes that are respectively connected in series with the first through eighth switches; a first bootstrap circuit that is connected to control terminals of the first, second, fourth, and sixth switches; and a second bootstrap circuit that is connected to control terminals of the third, fifth, seventh, and eighth switches.
-
3.发明授权公开(公告)号：US11356035B2
公开(公告)日：2022-06-07
申请号：US15295234
申请日：2016-10-17
Inventor： Junichi Kanou , Masahiro Yamaoka , Akira Minegishi , Atsushi Yamamoto , Kohei Masuda
Abstract: A power transmitting apparatus includes: a converter which converts an input power into an AC power with a predetermined frequency; and a first code modulator which code-modulates at least part of the AC power with a first modulation code to generate a first code-modulated power.
-
公开(公告)号：US10651658B2
公开(公告)日：2020-05-12
申请号：US15067174
申请日：2016-03-11
Inventor： Atsushi Yamamoto , Hiroshi Kanno
Abstract: A foreign object detecting device includes first and second coils, the winding directions of which are the same, and a foreign object detecting circuit. The foreign object detecting circuit outputs a first detecting signal having a first predetermined waveform to a first terminal of the first coil and outputs a second detecting signal having a second predetermined waveform, which has the same polarity as the first predetermined waveform, to a third terminal of the second coil to cause magnetic fields generated from the first and second coils to repel each other. The foreign object detecting circuit measures an amount of change of the impedance value of the first or second coil which is caused by the presence of a foreign object. When the amount of change exceeds a predetermined value, the foreign object detecting circuit determines that there is a foreign object above the first or second coil.
-
公开(公告)号：US10396564B2
公开(公告)日：2019-08-27
申请号：US15356793
申请日：2016-11-21
Inventor： Akira Minegishi , Junichi Kanou , Atsushi Yamamoto , Masahiro Yamaoka , Kohei Masuda
Abstract: A system includes: a first modulator that modulates a first electric power at a first modulation frequency; a second modulator that modulates a second electric power at a second modulation frequency; a transmission line through which a transmission power obtained by combining a plurality of modulated electric powers is transmitted; a first demodulator that demodulates the transmission power at a first demodulation frequency to generate a third electric power; and a second demodulator that demodulates the transmission power at a second demodulation frequency to generate a fourth electric power. The first modulation frequency and the second modulation frequency are different from each other.
-
Patent Agency Ranking
公开(公告)号：US10148129B2
公开(公告)日：2018-12-04
申请号：US15199408
申请日：2016-06-30
Inventor： Kenichi Asanuma , Tsutomu Sakata , Atsushi Yamamoto , Hiroshi Kanno
Abstract: A power transmitting device determines transmitting power P(t1) at a beginning of a first unit time, and transmitting power P(t2) at an end of the first unit time, stores a control parameter Q(t3) that determines a voltage of the transmitting power at a beginning of a second unit time, and a control parameter Q(t4) that determines a voltage of the transmitting power at an end of the second unit time, determines a power difference ΔP=P(t2)−P(t1) and a difference ΔQ=Q(t4)−Q(t3) in the control parameter Q, and, if the ΔP is equal to or larger than a first threshold and an absolute value of the ΔQ is equal to or larger than a second threshold, determines that there is a foreign object between a receiver resonator and a transmitter resonator and decreases the transmitting power output from an inverter circuit.
-
公开(公告)号：US09997929B2
公开(公告)日：2018-06-12
申请号：US15065931
申请日：2016-03-10
Inventor： Atsushi Yamamoto , Hiroshi Kanno
Abstract: A foreign object detecting device includes first, second, and third coils and a foreign object detecting circuit. The foreign object detecting circuit outputs a first detecting signal having a first predetermined waveform to a first terminal of the first coil and outputs a second detecting signal having a second predetermined waveform, which is an inverted form of the first predetermined waveform, to a fifth terminal of the third coil to cause a combined magnetic field extending over the first and third coils. The foreign object detecting circuit measures an amount of change of the impedance value of the first or third coil with respect to a change in the combined magnetic field in the case of the presence of a foreign object. The amount of change exceeds a predetermined value, the foreign object detecting circuit determines that there is a foreign object above the second coil.
-
公开(公告)号：US09966939B2
公开(公告)日：2018-05-08
申请号：US15367146
申请日：2016-12-01
Inventor： Masahiro Yamaoka , Junichi Kanou , Akira Minegishi , Atsushi Yamamoto , Kohei Masuda
CPC classification number: H03K7/02 , H02M5/293 , H02M5/297 , H02M7/4807 , H03K7/04 , H03K9/02 , H03K9/04
Abstract: A converter includes: a terminal that receives code-modulated power into which first alternating-current power has been code-modulated with a modulation code; and a circuit that converts the code-modulated power with a conversion code to generate second alternating-current power. The conversion code is based on the modulation code. A frequency of the second alternating-current power is lower than a frequency of the first alternating-current power.
-
公开(公告)号：US11342858B2
公开(公告)日：2022-05-24
申请号：US17050661
申请日：2019-04-16
Inventor： Motohiko Fujimura , Atsushi Yamamoto
Abstract: A power converter apparatus is provided with: a plurality of leg circuits, each including two switch circuits connected in series between input terminals; a transformer including a primary winding and a secondary winding, the primary winding having a first terminal and a second terminal; and at least one capacitor. The at least one capacitor is connected between the first terminal or the second terminal of the primary winding of the transformer, and a node between the two switch circuits in at least one leg circuit among the plurality of leg circuits. The first terminal of the primary winding of the transformer is connected to at least two nodes between the switch circuits in at least two first leg circuits among the plurality of leg circuits, via at least two first circuit portions having at least one of capacitances and inductances different from each other, respectively.
-
10.发明授权公开(公告)号：US10326470B2
公开(公告)日：2019-06-18
申请号：US15347062
申请日：2016-11-09
Inventor： Shoichi Hara , Atsushi Yamamoto , Taiki Nishimoto , Kohei Masuda
Abstract: A converter includes: a terminal that receives code-modulated power that has been generated with a modulation code; and a circuit that intermittently converts the code-modulated power with a conversion code based on the modulation code. The code-modulated power is alternating-current power.
-
-
-
-
-
-
-
-
-
Search Results
27
records
(took 0.026 seconds)
