专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US6021058A PWM inverter with zero dead time and initial power supply capacitor charging 失效
标题翻译： PWM逆变器具有零死区时间和初始电源电容充电
公开(公告)号：US6021058A
公开(公告)日：2000-02-01
申请号：US129428
申请日：1998-08-05
申请人： Masahiro Yasohara , Yasushi Kato , Shinichi Emura , Kazuyuki Takada , Yuji Tanaka , Kouji Takada , Ryutaro Arakawa
发明人： Masahiro Yasohara , Yasushi Kato , Shinichi Emura , Kazuyuki Takada , Yuji Tanaka , Kouji Takada , Ryutaro Arakawa
IPC分类号： H02M7/48 , H02M7/5395
CPC分类号： H02M7/538
摘要： A PWM inverter output circuit enabling circuit integration, having a fast response characteristic, and unaffected by dv/dt transients is provided. A predrive circuit 17 drives a power circuit 11 comprising first and second power elements P1 and P2 by controlling the gate and source potential of the power elements P1 and P2 based on a stored control state. The control state is detected from a logic signal output from an input signal processor 13, which converts a command signal instructing turning on and off the power elements P1 and P2 to predetermined logic signals. Operating power is drawn from a main dc power source V1, a control power source V2, and a power supply capacitor C1 that is charged using an output voltage from the control power source V2. The gates and sources of the power elements P1 and P2 are connected together.
摘要翻译：提供具有快速响应特性并且不受dv / dt瞬变影响的PWM逆变器输出电路，使能电路集成。预驱动电路17通过基于存储的控制状态控制功率元件P1和P2的栅极和源极电位来驱动包括第一和第二功率元件P1和P2的电源电路11。从输入信号处理器13输出的逻辑信号中检测控制状态，该命令将指示将功率元件P1和P2导通和关闭的命令信号转换成预定的逻辑信号。从主DC电源V1，控制电源V2和使用来自控制电源V2的输出电压进行充电的电源电容器C1抽取工作电力。功率元件P1和P2的门和源连接在一起。

2. 发明授权

US5859770A Output circuit for PWM inverter with no floating state 失效
标题翻译：无浮动状态的PWM逆变器输出电路
公开(公告)号：US5859770A
公开(公告)日：1999-01-12
申请号：US804652
申请日：1997-02-25
申请人： Kazuyuki Takada , Masahiro Yasohara , Shinichi Emura
发明人： Kazuyuki Takada , Masahiro Yasohara , Shinichi Emura
IPC分类号： H02M7/48 , H02M7/537 , H02M7/5387 , H02M1/12 , H02M3/24
CPC分类号： H02M7/538
摘要： An output circuit for a PWM inverter is provided which has an N-type first power device and a P-type second power device. Gates of the first and second power devices are connected to each other. Also, emitters of the first and second power devices are connected to each other. An input electrode control circuit controls the voltage applied to the common gates with respect to the common emitters. The voltage may be a positive or negative value, or zero. The input electrode control circuit controls the conduction states of the two power devices based upon the states of input light emitting devices associated with a first and second photocoupler (current generator). When both of the photocouplers are not lit, no current is generated and the conduction states of the power devices are instantaneously interrupted.
摘要翻译：提供一种用于PWM逆变器的输出电路，其具有N型第一功率器件和P型第二功率器件。第一和第二功率器件的栅极彼此连接。而且，第一和第二功率器件的发射极彼此连接。输入电极控制电路控制相对于公共发射极施加到公共栅极的电压。电压可以是正值或负值，也可以是零。输入电极控制电路基于与第一和第二光电耦合器（电流发生器）相关联的输入发光器件的状态来控制两个功率器件的导通状态。当两个光电耦合器不亮时，不产生电流，并且功率器件的导通状态瞬间中断。

3. 发明授权

US5929576A Protection apparatus for brushless motor 失效
标题翻译：无刷电机保护装置
公开(公告)号：US5929576A
公开(公告)日：1999-07-27
申请号：US839741
申请日：1997-04-15
申请人： Masahiro Yasohara , Kazuyuki Takada , Yoshihiro Fujisaki
发明人： Masahiro Yasohara , Kazuyuki Takada , Yoshihiro Fujisaki
IPC分类号： H02P6/06 , H02H7/08 , H02H7/093 , H02P6/00 , H02P6/12 , H02P6/16 , H02K23/00
CPC分类号： H02H7/0833 , H02P6/17 , H02P6/34 , H02H7/093
摘要： A protection apparatus used in a brushless motor is arranged by a brushless motor; a commutation signal detecting unit for detecting a position of a movable member of the brushless motor; a speed detecting unit for detecting a rotation speed of the movable member of the brushless motor, involving a rotation direction thereof, in response to the detection signal outputted from the commutation signal detecting unit; and a drive circuit for producing a commutation signal used to drive the movable member of the brushless motor in response to the detection signal outputted from the commutation signal detecting unit and for driving the brushless motor based upon the commutation signal. The protection apparatus is further constructed of an output voltage instructing unit for supplying to the drive circuit, an output voltage instruction signal for instructing an output voltage of the drive circuit, which constitutes a drive voltage when the brushless motor is driven; a voltage limit level setting unit for setting an upper limit value of the output voltage of the drive circuit; and a voltage limiter unit for limiting the output signal of the output voltage instructing unit based on the setting value of the voltage limit level setting unit to thereby limit an upper limit value of the output voltage of the drive circuit.
摘要翻译：用于无刷电动机的保护装置由无刷电动机布置; 换流信号检测单元，用于检测无刷电机的可动件的位置; 速度检测单元，用于响应于从换流信号检测单元输出的检测信号，检测包括其旋转方向的无刷电动机的可动构件的转速; 以及用于产生换向信号的驱动电路，用于响应于从换向信号检测单元输出的检测信号驱动无刷电动机的可动件，并根据换向信号驱动无刷马达。保护装置进一步由输出电压指令单元构成，用于向驱动电路提供用于指示驱动电路的输出电压的输出电压指令信号，该驱动电路在驱动无刷电动机时构成驱动电压; 电压限制电平设定单元，用于设定驱动电路的输出电压的上限值; 以及电压限制器单元，其基于所述电压限制电平设定单元的设定值来限制所述输出电压指示单元的输出信号，从而限制所述驱动电路的输出电压的上限值。

4. 发明授权

US5703459A Driver for an induction motor 失效
标题翻译：感应电机驱动器
公开(公告)号：US5703459A
公开(公告)日：1997-12-30
申请号：US610826
申请日：1996-03-05
申请人： Masahiro Yasohara , Yoshihiro Fujisaki , Kazuyuki Takada
发明人： Masahiro Yasohara , Yoshihiro Fujisaki , Kazuyuki Takada
IPC分类号： H02H3/08 , H02H3/20 , H02H5/00 , H02H7/00 , H02H7/093 , H02M7/48 , H02P27/04 , H02P27/06 , H02P5/34
CPC分类号： H02P29/027 , H02H7/093 , H02P21/09 , H02P2207/01 , H02P23/08 , H02P27/047
摘要： A driver for an induction motor includes a voltage limiter which limits an upper limit value of an output voltage from an invertor circuit in accordance with an output frequency command, a lowest frequency limiter which limits a lower limit of an output frequency from the invertor circuit, a forward rotation limiter which outputs a first power supply interruption signal when the output frequency from the invertor circuit reaches the upper limit, a reverse rotation limiter which outputs a second power supply interruption signal when a reverse rotational speed of the motor reaches a reverse rotation limit level, and a low-speed overload detector which outputs a third power supply interruption signal when a state in which the second power supply interruption signal is not output continues in a low speed abnormality state.
摘要翻译：用于感应电动机的驱动器包括限制器，该限幅器根据输出频率指令限制来自逆变器电路的输出电压的上限值，限制来自逆变器电路的输出频率的下限的最低频率限制器，正转限制器，当来自逆变器电路的输出频率达到上限时，输出第一电源中断信号;反转限制器，当电动机的反转速度达到反转极限时输出第二电源中断信号以及低速过载检测器，当不输出第二电源中断信号的状态在低速异常状态下继续时，输出第三电源中断信号。

5. 发明授权

US6040673A Motor control apparatus 失效
标题翻译：电机控制装置
公开(公告)号：US6040673A
公开(公告)日：2000-03-21
申请号：US320735
申请日：1999-05-27
申请人： Yoshinori Isomura , Masahiro Yasohara , Kazuyuki Takada
发明人： Yoshinori Isomura , Masahiro Yasohara , Kazuyuki Takada
IPC分类号： H02P27/06 , G05B5/01
CPC分类号： H02P23/0004 , H02P23/183
摘要： A motor control apparatus supplies a current to the motor according to the control either by an average current controller or by an instantaneous current controller. The selection of the controller is done by a switching command signal selector, which selects the average current controller when the position deviation is within a specified range, and selects the instantaneous current controller when the position deviation is outside this specified range.
摘要翻译：电动机控制装置根据由平均电流控制器或瞬时电流控制器进行的控制向电动机提供电流。控制器的选择由切换命令信号选择器完成，当位置偏差在指定范围内时，选择平均电流控制器，当位置偏差超出该指定范围时，选择瞬时电流控制器。

6. 发明授权

US5747833A Apparatus for driving induction motor 失效
标题翻译：感应电机驱动装置
公开(公告)号：US5747833A
公开(公告)日：1998-05-05
申请号：US654707
申请日：1996-05-29
申请人： Yoshihiro Fujisaki , Shinichi Emura , Kazuyuki Takada
发明人： Yoshihiro Fujisaki , Shinichi Emura , Kazuyuki Takada
IPC分类号： H02M7/48 , H02P27/06 , H02P5/28
CPC分类号： H02P29/027 , H02P23/08 , F24F11/0079 , H02P21/09 , H02P2207/01 , Y02B30/746
摘要： A driving apparatus of an induction motor applied for drive of a fan of an air conditioner has a voltage limiter unit for limiting an upper limit of an output voltage of an inverter circuit, a voltage slow-up unit for converting an output signal of an output voltage commanding unit into a signal which increases gradually when that output signal rises, a voltage slow-down unit for converting the output signal of the output voltage commanding unit into a signal which decreases gradually when that output signal falls, and a feed interruption processing unit for setting the output signal value of the output voltage commanding unit to 0 when interrupting feeding and delivering a feed interruption signal at the termination of the lapse of a predetermined time.
摘要翻译：用于驱动空调的风扇的感应电动机的驱动装置具有用于限制逆变器电路的输出电压的上限的限压器单元，用于转换输出的输出信号的电压缓慢单元电压指令单元输入到当所述输出信号上升时逐渐增加的信号;电压降低单元，用于将所述输出电压指令单元的输出信号转换为当所述输出信号下降时逐渐减小的信号;以及馈送中断处理单元用于在中断进给时将输出电压指令单元的输出信号值设定为0，并且在预定时间过去的结束时传送进给中断信号。

7. 发明申请

US20050213689A1 Demodulator circuit, radio communication system and communication semiconductor integrated circuit 审中-公开
标题翻译：解调器电路，无线电通信系统和通信半导体集成电路
公开(公告)号：US20050213689A1
公开(公告)日：2005-09-29
申请号：US11037133
申请日：2005-01-19
申请人： Keisuke Matsuda , Takashi Okubo , Toyokazu Hori , Kazuyuki Takada
发明人： Keisuke Matsuda , Takashi Okubo , Toyokazu Hori , Kazuyuki Takada
IPC分类号： H04J11/00 , H04L25/02 , H04L27/00 , H04L27/14 , H04L27/26 , H04L27/38
CPC分类号： H04L27/3809 , H04L25/022 , H04L25/0228 , H04L27/265 , H04L27/2657 , H04L27/2675 , H04L2027/003 , H04L2027/0048 , H04L2027/0065 , H04L2027/0095
摘要： A communication semiconductor integrated circuit has a demodulator circuit built in a single semiconductor chip. The demodulator circuit is constructed to demodulate a received OFDM-modulated packet signal including a preamble that has two or more fixed-signal sequences, and to have a frequency-error estimating/correcting function that estimates the frequency error of the received signal by using the received preamble and corrects the received signal for the frequency error, a fast Fourier transform function (FFT portion 210) that converts the time-axis information of the corrected received signal to frequency-axis information, a transmission path response estimating/correcting function that estimates the status of the transmission path from the converted signal and corrects the received signal for the transmission path response, and an averaging function that averages the received signal after being corrected for the frequency error so that the averaging can be performed before the fast Fourier transform process.
摘要翻译：通信半导体集成电路具有内置在单个半导体芯片中的解调器电路。解调器电路被构造为解调包括具有两个或多个固定信号序列的前同步码的接收的OFDM调制分组信号，并且具有频率误差估计/校正功能，该频率误差估计/校正功能通过使用接收到的前同步码并校正频率误差的接收信号，将校正的接收信号的时间轴信息转换为频率轴信息的快速傅里叶变换函数（FFT部分210），估计来自转换信号的传输路径的状态，并且校正用于传输路径响应的接收信号，以及对经频率误差校正后的接收信号进行平均的平均函数，使得可以在快速傅立叶变换处理之前执行平均。

8. 发明授权

US5347444A Output circuit of PWM inverter 失效
标题翻译： PWM逆变器的输出电路
公开(公告)号：US5347444A
公开(公告)日：1994-09-13
申请号：US143504
申请日：1993-10-29
申请人： Kazuyuki Takada , Toru Kishi
发明人： Kazuyuki Takada , Toru Kishi
IPC分类号： H02M7/5387 , H02M5/44
CPC分类号： H02M7/5387
摘要： An inexpensive output circuit of a PWM inverter for PWM controlling a coil voltage of a motor with small control error of voltage at a motor winding terminal and low power consumption includes an N channel power MOS-FET, a P channel power MOS-FET, a current control circuit 1 having a current output terminal, and a current control circuit 2 having a current input terminal. A current flowing out from the current output terminal of the current control circuit 1 and a current flowing in from the current input terminal of the current control circuit 2 are subjected to particular control to thereby control the N channel power MOS-FET and the P channel power MOS-FET.
摘要翻译：用于对电动机绕组端子的电压控制误差小的电动机的线圈电压进行PWM控制的PWM逆变器的廉价输出电路包括N沟道功率MOS-FET，P沟道功率MOS-FET，具有电流输出端的电流控制电路1和具有电流输入端的电流控制电路2。从电流控制电路1的电流输出端流出的电流和从电流控制电路2的电流输入端流入的电流受到特定的控制，从而控制N沟道功率MOS-FET和P沟道功率MOS-FET。

9. 发明授权

US5805438A Current controlled PWM inverter for driving a motor without gain adjustment 失效
标题翻译：用于驱动电机的电流控制PWM逆变器，无增益调节
公开(公告)号：US5805438A
公开(公告)日：1998-09-08
申请号：US788338
申请日：1997-01-27
申请人： Kazuyuki Takada , Yoshinori Isomura
发明人： Kazuyuki Takada , Yoshinori Isomura
IPC分类号： H02M7/48 , H02P6/00 , H02P6/06 , H02P6/08 , H02P27/06 , H02P27/08 , H03K19/0175 , H02M7/797
CPC分类号： H02M7/53875 , H02P6/06 , H02P6/28
摘要： A low-cost, completely adjustment-free current-controlled PWM inverter substantially solving the conventional problems associated with the gain adjustment of a current error amplifier is provided. The current-controlled PWM inverter comprises a motor current detector, a main circuit power controller, a current comparator, a timing signal generator, and a switching control signal generator configured such that the switching control signal generator sets the switching control signal to switch the main circuit switching power elements on or off at the refresh timing and at the timing at which the current comparison result state changes.
摘要翻译：提供了一种基本上解决与电流误差放大器的增益调整相关的常规问题的低成本，完全无调节的电流控制PWM逆变器。电流控制PWM逆变器包括电动机电流检测器，主电路功率控制器，电流比较器，定时信号发生器和开关控制信号发生器，其被配置为使得开关控制信号发生器设置开关控制信号以切换主电路切换功率元件在刷新定时和当前比较结果状态改变的定时处打开或关闭。

10. 发明授权

US06727425B2 Power generation satellite and transmission antenna apparatus 失效
标题翻译：发电卫星和发射天线装置
公开(公告)号：US06727425B2
公开(公告)日：2004-04-27
申请号：US10184908
申请日：2002-07-01
申请人： Kazuyuki Takada , Hiroyuki Satou , Izuru Naito , Izumi Mikami
发明人： Kazuyuki Takada , Hiroyuki Satou , Izuru Naito , Izumi Mikami
IPC分类号： H01L31042
CPC分类号： H01Q19/10 , B64G1/428 , B64G1/443 , H02J17/00 , H02J50/23 , H02J50/40 , H02J50/90 , Y02E10/52 , Y10S136/292
摘要： High-output transmitters are applied to a power generation satellite and a transmission antenna apparatus and a transmission antenna having an array antenna with a small number of element antennas and a reflecting mirror antenna is applied, thereby providing a power generation satellite and a transmission antenna apparatus in a space photovoltaic generation system comprising transmission antennas each having performance equivalent to that of a phased array antenna with a smaller number of transmitters and a smaller number of element antennas than those of a transmission antenna implemented as a phased array antenna.
摘要翻译：高输出发射机应用于发电卫星，发射天线装置和具有少量元件天线阵列天线和反射镜天线的发射天线，从而提供发电卫星和发射天线装置在包括发射天线的空间光伏发电系统中，每个发射天线具有与具有较少数量的发射机的相控阵天线的性能相等的元件天线的数量少于构成相控阵天线的发射天线的天线。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式