公开(公告)号：US10476489B2

公开(公告)日：2019-11-12

申请号：US15580443

申请日：2016-07-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Minoru Kumahara ,  Richard Visee ,  Gerrit Van Der Horn ,  Ronny Van Rooij ,  Pooyan Sakian Dezfuli

IPC: H03B1/00 ,  H03K3/00 ,  H03K5/125 ,  H03K17/691 ,  H03K19/0175 ,  H04B5/02 ,  H03F3/45 ,  H03K17/16 ,  H04B1/18

Abstract: A signal transmission circuit includes a primary element configured to receive differential signals which are generated from a transmission signal and contain alternating-current (AC) components, a secondary element magnetically or capacitively coupled with the primary element and configured to output AC signals containing the AC components of the differential signals, a secondary circuit including a pair of transmission lines configured to propagate the AC signals. The secondary circuit is electrically connected to the secondary element and extracts the transmission signal from the AC signals. The feedback circuit feedbacks an intermediate voltage between voltages of the pair of transmission lines such that the intermediate voltage is converged to a reference voltage. This signal transmission circuit prevents the secondary circuit from malfunctioning due to noise.

公开(公告)号：US09958968B2

公开(公告)日：2018-05-01

申请号：US15102906

申请日：2014-12-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Minoru Kumahara ,  Takuya Mori ,  Teruyuki Takizawa ,  Takeshi Nakazawa ,  Jiro Seki

IPC: G06F3/033 ,  G09G5/08 ,  G06F3/038 ,  G06F3/0338 ,  G06F3/01 ,  G06F3/0354 ,  H01H50/36 ,  H01H50/44 ,  H01H50/64

CPC classification number: G06F3/038 ,  G06F3/016 ,  G06F3/0338 ,  G06F3/03549 ,  G06F3/0383 ,  H01H50/36 ,  H01H50/44 ,  H01H50/643

Abstract: An input and output operation device includes an actuator 165 including an operation unit 850; a movable unit having the operation unit and at least one attraction magnet mounted thereon and including a concaved portion in a part thereof; a secured unit including a convexed spherical surface loosely engageable with at least one magnetic member and the concaved portion of the movable unit, the convexed spherical surface being point-contactable or line-contactable with the concaved portion of the movable unit by a magnetic attraction force, the secured unit supporting the movable unit such that the movable unit is freely rotatable as centered around a spherical center of the convexed spherical surface; a first driving unit rotating the operation unit as centered around an X-axis passing the spherical center; a second driving unit rotating the operation unit as centered around a Y-axis perpendicular to the X-axis; a third driving unit rotating the movable unit as centered around a Z-axis that is perpendicular to the X-axis and the Y-axis and is a central axis of the operation unit; and a detector detecting a first rotation angle and a second rotation angle of the operation unit around the X-axis and the Y-axis; and also includes a detection circuit unit 360 generating first and second rotation angle signals; a control computation processing unit 94 generating first and second target rotation angle signals; and a driving circuit unit 350 generating a signal usable to drive the first and second driving units.

公开(公告)号：US10276298B2

公开(公告)日：2019-04-30

申请号：US15541450

申请日：2016-04-13

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiroshi Kawada ,  Minoru Kumahara ,  Takahiro Miyatake ,  Yoshiyuki Kajimoto

IPC: H01F27/28 ,  H01F5/00 ,  H01F27/29 ,  H01F27/32 ,  H01F30/10 ,  H02M3/28 ,  H01F17/04 ,  H05K1/02 ,  H01F27/40 ,  H01F19/08

Abstract: A transformer includes a multilayer board including insulation layers stacked in a thickness direction, a primary coil provided on at least one of the insulation layers, and a secondary coil provided on at least one of the insulation layers. The primary coil includes first sub coils electrically connected in series to each other, and second sub coils electrically connected in series to each other. Surfaces of the plurality of insulation layers constitute layer planes of the multilayer board. At least two of the first sub coils are provided on layer planes out of the layer plane different from each other. At least two of the second sub coils are provided on layer planes out of the layer planes different from each other. An average of positions of the first sub coils in the thickness direction is aligned with an average of positions of the second sub coils in the thickness direction.