公开(公告)号：US20050017765A1

公开(公告)日：2005-01-27

申请号：US10891904

申请日：2004-07-14

申请人： Kazuhiro Sasaki ,  Katsuhiko Morosawa

发明人： Kazuhiro Sasaki ,  Katsuhiko Morosawa

IPC分类号： H01L51/50 ,  G09G3/20 ,  G09G3/30 ,  G09G3/32 ,  H03B1/00 ,  H05B33/14

CPC分类号： G09G3/325 ,  G09G3/3283 ,  G09G2300/0814 ,  G09G2300/0842 ,  G09G2310/027

摘要： A current generation supply circuit which supplies drive currents corresponding to digital signals for a plurality of loads comprising a signal holding circuit which takes in and holds the digital signals, a current generation circuit which generates the drive currents having a ratio of current values corresponding to the values of the digital signals held in the signal holding circuit relative to the reference current supplied from a constant current source and supplied to the loads, and an operational state setting circuit which overlaps in terms of time and sets the operating state in the signal holding circuit and the current generation circuit in order to execute at least a take-in and hold operation of the digital signals in the signal holding circuit and a generation supply operation of the drive currents in the current generation circuit; as well as raises the operating speed of the current generation supply circuit.

摘要翻译： 一种电流产生电路，其向多个负载提供与数字信号相对应的驱动电流，该驱动电流包括保持数字信号的信号保持电路，产生具有对应于该数字信号的电流值的比率的驱动电流的电流产生电路 保持在信号保持电路中的数字信号相对于从恒定电流源提供并提供给负载的参考电流的值，以及在时间上重叠并将信号保持电路中的操作状态设置的操作状态设置电路 和电流产生电路，以便至少执行信号保持电路中的数字信号的接收和保持操作以及当前发电电路中的驱动电流的发生供电操作; 并提高当前发电电源电路的工作速度。

公开(公告)号：US06611415B1

公开(公告)日：2003-08-26

申请号：US09676062

申请日：2000-09-29

申请人： Shinichi Hagidaira ,  Norimasa Amano ,  Kazuhiro Sasaki

发明人： Shinichi Hagidaira ,  Norimasa Amano ,  Kazuhiro Sasaki

IPC分类号： H01H900

CPC分类号： B62D7/148 ,  B62D5/07 ,  B62D7/1572

摘要： Provision of a fail-safe circuit which is capable of allowing a sub circuit to operate with reliability when a main circuit encounters abnormal conditions even in a system with only one supply source of pressure oil. A plurality of solenoid type control valves (3, 6) connected to an actuator (1) in parallel have centering springs respectively and are maintained at a neutral position in normal conditions. Each control valve is provided with a supply port, a return port and two actuator ports and is configured such that in the neutral position, the supply port and the return port are communicated with each other and interrupts communication with the actuator ports. And also, while the supply port (3a) of the most upstream control valve (3) is connected to a supply source (P) and the return port (6b) of the most downstream control valve (6) is connected to a tank (T), a return port (3b) of each control valve is connected a supply port (6a) of a control valve (6) located downstream from and adjacent to the connected return port (3b).

摘要翻译： 提供故障保护电路，即使在仅一个压力油供应源的系统中，即使主电路遇到异常情况，子电路也能够可靠地运行。 分别与致动器（1）连接的多个螺线管式控制阀（3,6）分别具有定心弹簧，并且在正常条件下保持在中立位置。 每个控制阀设置有供给口，返回端口和两个致动器端口，并且构造成使得在中立位置，供应端口和返回端口彼此连通并且中断与致动器端口的连通。 而且，最上游控制阀（3）的供给口（3a）与供给源（P）连接，最下游控制阀（6）的返回口（6b）与罐 每个控制阀的返回端口（3b）连接在位于连接的返回端口（3b）的下游和邻近的控制阀（6）的供应口（6a）上。