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    • 53. 发明授权
    • Gate drive circuit having reduced current-consumption and rapid
inductive energy dissipation
    • 栅极驱动电路具有降低的电流消耗和快速的感应能量耗散
    • US5811996A
    • 1998-09-22
    • US767952
    • 1996-12-17
    • Kazunori OyabeTatsuhiko FujihiraKazuhiko YoshidaYukio Yano
    • Kazunori OyabeTatsuhiko FujihiraKazuhiko YoshidaYukio Yano
    • H03K17/08H03K17/00H03K17/082H03K17/695H03K3/00
    • H03K17/0822H03K17/0828H03K2217/0036
    • A gate drive circuit device for a voltage-driven semiconductor element reduces the time to dissipate inductively stored electromagnetic energy and reduces current consumption by using cyclically charged capacitative storage to produce a control signal that is about twice the supply voltage. This permits full-ON dissipation of the stored energy after the circuit cuts off power to the inductive element. In one embodiment, the dissipation is chiefly in a voltage-regulator diode connected to limit the voltage appearing across a transistor. In another embodiment, a voltage regulator diode permits a transistor to operate in the full-on condition, while limiting the voltage across it to a value below its withstand voltage, whereby a maximum power dissipation current flows in the transistor. In a further embodiment a gate drive signal generator eliminates a voltage regulator diode from the conventional gate drive circuit device. Instead, this embodiment substitutes switching devices both on the power supply side and the reference potential (ground) side. Both switching devices include a switch and an operating section that controls switching operation. The two operating sections receive an externally generated command signal for timing the ON/OFF operation of the switches. The control technique permits both the switching and operating sections to be fabricated integrally as an integrated circuit.
    • 用于电压驱动的半导体元件的栅极驱动电路器件通过使用循环充电的电容存储来减少耗散感应存储的电磁能量并减少电流消耗的时间,以产生大约是电源电压的两倍的控制信号。 这在电路断开电感元件的电源之后,允许存储能量的全功耗。 在一个实施例中,耗散主要在连接的电压调节器二极管中以限制出现在晶体管两端的电压。 在另一个实施例中,电压调节器二极管允许晶体管在全开状态下工作,同时将其两端的电压限制在低于其耐受电压的值,由此在晶体管中流过最大功耗电流。 在另一实施例中,栅极驱动信号发生器从传统的栅极驱动电路器件中消除了稳压二极管。 相反,该实施例将电源侧和参考电位(接地)侧的开关器件替代。 两个开关装置包括开关和控制开关操作的操作部分。 两个操作部分接收外部产生的命令信号以定时开关的ON / OFF操作。 控制技术允许开关和操作部分作为集成电路整体制造。
    • 56. 发明授权
    • Fixed type constant velocity universal joint
    • 固定式等速万向节
    • US08684849B2
    • 2014-04-01
    • US13505763
    • 2010-11-25
    • Keisuke SoneHirokazu OobaKazuhiko YoshidaKiyohiro Itou
    • Keisuke SoneHirokazu OobaKazuhiko YoshidaKiyohiro Itou
    • F16D3/224
    • F16D3/2237F16D3/2245F16D2003/22309
    • An eight-ball fixed type constant velocity universal joint of an undercut free type is capable of increasing a torque capacity at high operating angles while securing durability at low operating angles. When a distance between a center of a track groove and a center of a ball is denoted by Rt, and when an axial distance between the center of the track groove and a joint center plane is denoted by F, a ratio R1 of F to Rt is set to fall within a range of 0.061≦R1≦0.087. When a radial offset amount, which is a distance between the center of the track groove and a joint center axial line is denoted by fr, a ratio R3 of fr to Rt is set to fall within a range of 0.07≦R3≦0.19. When an effective cured-layer depth with Hv 513 is denoted by Di and the diameter of the ball is denoted by d, a bottom surface of a track groove of an inner joint member includes a cured layer with an effective cured-layer depth ratio Di/d of at least 0.111 or more.
    • 具有无切削型的八球固定式等速万向节能够在高操作角度下增加扭矩容量,同时确保低作业角下的耐用性。 当轨道槽的中心和球的中心之间的距离由Rt表示时,并且当轨道槽的中心与接头中心平面之间的轴向距离用F表示时,F与Rt的比率R1 设定在0.061≦̸ R1≦̸ 0.087的范围内。 当轨道槽的中心与接合中心轴线之间的距离的径向偏移量由fr表示时,fr与Rt的比率R3被设定为0.07< N1; R3< N1; 0.19的范围。 当用Hv 513表示有效的固化层深度为Di时,球的直径由d表示,内侧接头构件的轨道槽的底面包括具有有效固化层深度比Di / d至少为0.111以上。
    • 57. 发明授权
    • Fixed uniform-motion universal joint
    • 固定均匀万向节
    • US08545337B2
    • 2013-10-01
    • US12991480
    • 2009-05-28
    • Keisuke SoneHirokazu OobaKazuhiko YoshidaKiyohiro Itou
    • Keisuke SoneHirokazu OobaKazuhiko YoshidaKiyohiro Itou
    • F16D3/2237
    • F16D3/2245F16D3/2237F16D2003/22309
    • A fixed type constant velocity universal joint of an eight-ball undercut-free type has improved torque capacity at high operating angle while ensuring durability at low operating angle. Centers of a track groove (32) of an outer joint member and a track groove (35) of an inner joint member are respectively separated from a center plane (P) toward axially different sides, and are offset away from a joint center axis (X) to a radially opposite side relative to grooves (35). When Rt represents a distance between a center of a ball (37) and the center of groove (32), and F represents an axial distance between plane (P) and the center of groove (32), a ratio R1 between F and Rt is 0.061≦R1≦0.087. When fr represents a radial offset amount as a distance between axis (X) and the center of groove (32), a ratio R3 between fr and Rt is 0.07≦R3≦0.19.
    • 八球无切削型的固定式等速万向接头在高操作角度下具有改善的扭矩容量,同时确保低作业角下的耐用性。 外侧接头构件的轨道槽(32)和内侧接头构件的轨道槽(35)的中心分别与中心面(P)朝向轴向不同侧分开,并且偏离接头中心轴线 X)相对于凹槽(35)径向相对的一侧。 当Rt表示球(37)的中心和凹槽(32)的中心之间的距离,F表示平面(P)与凹槽(32)的中心之间的轴向距离时,F和Rt之间的比率R1 为0.061 @ R1 @ 0.087。 当fr表示作为轴(X)和凹槽(32)的中心之间的距离的径向偏移量时,fr和Rt之间的比率R3为0.07 @ R3 @ 0.19。
    • 58. 发明授权
    • Power transmission shaft, drive shaft, and propeller shaft
    • 动力传动轴,驱动轴和传动轴
    • US08435125B2
    • 2013-05-07
    • US13058941
    • 2009-08-21
    • Hirokazu OobaKazuhiko YoshidaKeisuke Sone
    • Hirokazu OobaKazuhiko YoshidaKeisuke Sone
    • F16C3/02
    • B60K17/22F16D1/116F16D2001/103F16D2300/10
    • A power transmission shaft includes a torque-transmission teeth portion formed on an outer peripheral surface on an end portion side, and a smooth portion formed on the outer peripheral surface adjacent to the torque-transmission teeth portion so as to have a stepwise reduced diameter. A ratio of a minimum diameter of the smooth portion to a minimum diameter of the torque-transmission teeth portion is set to 0.9 or more and 1.02 or less. Further, the torque-transmission teeth portion and the smooth portion undergo heat treatment so as to form a heat-treated hardened layer. The heat-treated hardened layer is formed to increase in depth from a side of the torque transmission teeth portion to a side of the smooth portion. At least a minimum diameter portion of the smooth portion undergoes full hardening.
    • 动力传递轴包括形成在端部侧的外周面上的扭矩传递齿部和形成在与扭矩传递齿部相邻的外周面上的平滑部,以具有逐步减小的直径。 平滑部的最小直径与扭矩传递齿部的最小直径的比率设定为0.9以上且1.02以下。 此外,转矩传递齿部和平滑部进行热处理,以形成热处理硬化层。 热处理的硬化层形成为从扭矩传递齿部分的一侧到平滑部分的一侧增加深度。 至少平滑部分的最小直径部分经历完全硬化。