公开(公告)号：US07683654B2

公开(公告)日：2010-03-23

申请号：US12005675

申请日：2007-12-27

申请人： Baoxing Chen ,  Geoffrey Haigh

发明人： Baoxing Chen ,  Geoffrey Haigh

IPC分类号： H03K17/16 ,  H01L25/00

CPC分类号： H01F17/0006 ,  H01F19/08 ,  H01F2017/0093 ,  H01F2019/085 ,  H01F2038/143 ,  H01L23/5227 ,  H01L23/60 ,  H01L23/645 ,  H01L2224/05554 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2924/00014 ,  H01L2924/13091 ,  H03K5/1252 ,  H04L25/0266 ,  H01L2924/00 ,  H01L2224/45099

摘要： A logic signal isolator comprising a transformer having a primary winding and a secondary winding; a transmitter circuit which drives said primary winding in response to a received logic signal, such that in response to a first type of edge in the logic signal, a signal of a first predetermined type is supplied to the primary winding and in response to a second type of edge in the logic signal, a signal of a second predetermined type is supplied to said primary winding, the primary winding and the transmitter being referenced to a first ground; and the secondary winding being referenced to a second ground which is galvanically isolated from the first ground and said secondary winding supplying to a receiver circuit signals received in correspondence to the signals provided to the primary winding, the receiver reconstructing the received logic signal from the received signals.

公开(公告)号：US20060273811A1

公开(公告)日：2006-12-07

申请号：US11437426

申请日：2006-05-19

申请人： Geoffrey Haigh ,  James Wey

发明人： Geoffrey Haigh ,  James Wey

IPC分类号： G01R31/02

CPC分类号： G01R31/31924

摘要： A pin electronics circuit for use in automatic testing equipment that includes a load for testing a pin of a device under test. The load of the pin electronics circuit is electrically coupled to a precision parametric measurement unit. In this embodiment, the precision pin measurement unit provides a forcing signal to the load when a high current mode is desired. In response to the forcing signal, the load generates a current through a resistor that results in a desired current or voltage at a pin of the device under test. Since the load is used in high current mode, the precision parametric measurement unit does not include a high current output stage.

摘要翻译： 用于自动测试设备的引脚电子电路，包括用于测试被测器件引脚的负载。 引脚电子电路的负载电耦合到精密参数测量单元。 在本实施例中，当需要高电流模式时，精密针测量单元向负载提供强制信号。 响应于强制信号，负载产生通过电阻器的电流，其导致被测器件的引脚处的期望的电流或电压。 由于负载在高电流模式下使用，所以精度参数测量单元不包括高电流输出级。

公开(公告)号：US5310554A

公开(公告)日：1994-05-10

申请号：US967897

申请日：1992-10-27

申请人： W. Geoffrey Haigh

发明人： W. Geoffrey Haigh

IPC分类号： A23L33/155 ,  A61K9/16 ,  A61K9/48 ,  A61K31/015 ,  A61K31/07 ,  A61K31/375 ,  A61K36/00 ,  A61K36/02 ,  A61K36/05 ,  A61P35/00 ,  C07C403/24 ,  C09B61/00 ,  A61K9/20 ,  A61K35/78

CPC分类号： C07C403/24 ,  A23L33/155 ,  A61K31/015 ,  A61K31/375 ,  A61K36/05

摘要： Compositions of high-purity natural beta-carotene and of the 9-cis isomer of beta-carotene are provided, as are methods for the production of these compositions from plant matter, conveniently algae such as Dunaliella species. Typically, the compositions contain at least about 5% 9-cis beta-carotene and less than or equal to 40% of all-trans-beta-carotene, and in some cases may contain 75% 9-cis beta-carotene or higher. The compositions are suitable for administration to humans or other animals, particularly for oral delivery, in a variety of formulations and dosages as pharmaceutical agents or as dietary supplements.

摘要翻译： 提供了高纯度天然β-胡萝卜素和β-胡萝卜素的9-顺式异构体的组合物，以及用于从植物物质，方便的藻类如杜氏盐藻物种生产这些组合物的方法。 通常，组合物含有至少约5％的9-顺式β-胡萝卜素和小于或等于全反式β-胡萝卜素的40％，并且在一些情况下可含有75％9-顺式β-胡萝卜素或更高。 组合物适合于以各种制剂和剂量作为药剂或作为膳食补充剂施用于人或其它动物，特别是用于口服递送。

公开(公告)号：US20110175642A1

公开(公告)日：2011-07-21

申请号：US13077324

申请日：2011-03-31

申请人： Baoxing CHEN ,  Geoffrey HAIGH

发明人： Baoxing CHEN ,  Geoffrey HAIGH

IPC分类号： H03K19/003

CPC分类号： H01F17/0006 ,  H01F19/08 ,  H01F2017/0093 ,  H01F2019/085 ,  H01F2038/143 ,  H01L23/5227 ,  H01L23/60 ,  H01L23/645 ,  H01L2224/05554 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2924/00014 ,  H01L2924/13091 ,  H03K5/1252 ,  H04L25/0266 ,  H01L2924/00 ,  H01L2224/45099

摘要： A logic signal isolator comprising a transformer having a primary winding and a secondary winding; a transmitter circuit which drives said primary winding in response to a received logic signal, such that in response to a first type of edge in the logic signal, a signal of a first predetermined type is supplied to the primary winding and in response to a second type of edge in the logic signal, a signal of a second predetermined type is supplied to said primary winding, the primary winding and the transmitter being referenced to a first ground; and the secondary winding being referenced to a second ground which is galvanically isolated from the first ground and said secondary winding supplying to a receiver circuit signals received in correspondence to the signals provided to the primary winding, the receiver reconstructing the received logic signal from the received signals.

摘要翻译： 一种逻辑信号隔离器，包括具有初级绕组和次级绕组的变压器; 发射机电路，其响应于接收到的逻辑信号驱动所述初级绕组，使得响应于逻辑信号中的第一类型的边缘，将第一预定类型的信号提供给初级绕组并响应于第二级 逻辑信号中的边缘类型，将第二预定类型的信号提供给所述初级绕组，所述初级绕组和发射器参考第一地面; 并且次级绕组参考与第一地线电隔离的第二地线，并且所述次级绕组向接收器电路提供对应于提供给初级绕组的信号而接收的信号，接收机从接收器重建接收到的逻辑信号 信号。

公开(公告)号：US07692444B2

公开(公告)日：2010-04-06

申请号：US11481997

申请日：2006-07-06

申请人： Baoxing Chen ,  Geoffrey Haigh

发明人： Baoxing Chen ,  Geoffrey Haigh

IPC分类号： H03K17/16 ,  H01L25/00

CPC分类号： H01F17/0006 ,  H01F19/08 ,  H01F2017/0093 ,  H01F2019/085 ,  H01F2038/143 ,  H01L23/5227 ,  H01L23/60 ,  H01L23/645 ,  H01L2224/05554 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2924/00014 ,  H01L2924/13091 ,  H03K5/1252 ,  H04L25/0266 ,  H01L2924/00 ,  H01L2224/45099

摘要： A logic signal isolator comprising a transformer having a primary winding and a secondary winding; a transmitter circuit which drives said primary winding in response to a received logic signal, such that in response to a first type of edge in the logic signal, a signal of a first predetermined type is supplied to the primary winding and in response to a second type of edge in the logic signal, a signal of a second predetermined type is supplied to said primary winding, the primary winding and the transmitter being referenced to a first ground; and the secondary winding being referenced to a second ground which is galvanically isolated from the first ground and said secondary winding supplying to a receiver circuit signals received in correspondence to the signals provided to the primary winding, the receiver reconstructing the received logic signal from the received signals.

摘要翻译： 一种逻辑信号隔离器，包括具有初级绕组和次级绕组的变压器; 发射机电路，其响应于接收到的逻辑信号驱动所述初级绕组，使得响应于逻辑信号中的第一类型的边缘，将第一预定类型的信号提供给初级绕组并响应于第二级 逻辑信号中的边缘类型，将第二预定类型的信号提供给所述初级绕组，所述初级绕组和发射器参考第一地面; 并且次级绕组参考与第一地线电隔离的第二地线，并且所述次级绕组向接收器电路提供对应于提供给初级绕组的信号而接收的信号，接收机从接收器重建接收到的逻辑信号 信号。

公开(公告)号：US20050057277A1

公开(公告)日：2005-03-17

申请号：US10834959

申请日：2004-04-29

申请人： Baoxing Chen ,  Geoffrey Haigh

发明人： Baoxing Chen ,  Geoffrey Haigh

IPC分类号： H01F17/00 ,  H01F19/08 ,  H01L23/522 ,  H03K5/1252 ,  H03K19/0175

CPC分类号： H01F17/0006 ,  H01F19/08 ,  H01F2017/0093 ,  H01F2019/085 ,  H01F2038/143 ,  H01L23/5227 ,  H01L23/60 ,  H01L23/645 ,  H01L2224/05554 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2924/00014 ,  H01L2924/13091 ,  H03K5/1252 ,  H04L25/0266 ,  H01L2924/00 ,  H01L2224/45099

摘要： A logic signal isolator comprising a transformer having a primary winding and a secondary winding; a transmitter circuit which drives said primary winding in response to a received logic signal, such that in response to a first type of edge in the logic signal, a signal of a first predetermined type is supplied to the primary winding and in response to a second type of edge in the logic signal, a signal of a second predetermined type is supplied to said primary winding, the primary winding and the transmitter being referenced to a first ground; and the secondary winding being referenced to a second ground which is galvanically isolated from the first ground and said secondary winding supplying to a receiver circuit signals received in correspondence to the signals provided to the primary winding, the receiver reconstructing the received logic signal from the received signals.

摘要翻译： 一种逻辑信号隔离器，包括具有初级绕组和次级绕组的变压器; 发射机电路，其响应于接收到的逻辑信号驱动所述初级绕组，使得响应于逻辑信号中的第一类型的边缘，将第一预定类型的信号提供给初级绕组并响应于第二级 逻辑信号中的边缘类型，将第二预定类型的信号提供给所述初级绕组，所述初级绕组和发射器参考第一地面; 并且次级绕组参考与第一地线电隔离的第二地线，并且所述次级绕组向接收器电路提供对应于提供给初级绕组的信号而接收的信号，接收机从接收器重建接收到的逻辑信号 信号。

公开(公告)号：US20070009202A1

公开(公告)日：2007-01-11

申请号：US11482179

申请日：2006-07-06

申请人： Cammen Chan ,  Geoffrey Haigh

发明人： Cammen Chan ,  Geoffrey Haigh

IPC分类号： G02B6/26

CPC分类号： H01H59/0009 ,  H01H9/542 ,  H01H9/548

摘要： A micro-machined switching system for equalizing an electrical property, such as charge due to parasitic capacitance formed at an input and an output of a micro-machined switching device. The micro-machined switching device may be a MEMS relay or a MEMS switch. In addition to the micro-machined switching device, the switching system also includes a balancing module for equalizing the electrical property between the input and the output of the micro-machined switching device. In certain embodiments, the balancing module includes a switch operable in a first state causing charge due to the parasitic capacitance on the input and the output of the micro-machined switching device to substantially balance. The switch is also operable in a second state wherein parasitic capacitance can separately accumulate at the input and the output of the micro-machined switching device.

摘要翻译： 一种用于均衡电性能的微加工开关系统，例如由于在微加工开关装置的输入端和输出端处形成的寄生电容引起的电荷。 微加工的开关装置可以是MEMS继电器或MEMS开关。 除了微加工的开关装置之外，开关系统还包括用于均衡微加工开关装置的输入和输出之间的电气特性的平衡模块。 在某些实施例中，平衡模块包括可在第一状态下操作的开关，其由于输入端的寄生电容和微加工开关器件的输出基本上平衡而导致电荷。 该开关也可在第二状态下工作，其中寄生电容可以分开地累积在微加工开关器件的输入和输出端。

公开(公告)号：US20060123301A1

公开(公告)日：2006-06-08

申请号：US11253071

申请日：2005-10-18

申请人： James Wey ,  Geoffrey Haigh

发明人： James Wey ,  Geoffrey Haigh

IPC分类号： G01R31/28 ,  G06F11/00

CPC分类号： G01R31/31924

摘要： A circuit operating as a bridgeless current load in pin testing equipment for testing a pin of a device under test is disclosed. The circuit includes a transconductance stage having at least a first input and a second input and at least one output capable of being coupled to a pin of a device under test. The circuit further includes a first limiting current source coupled to the transconductance stage for sourcing the pin of the device under test to a first current level and a second limiting current source coupled to the transconductance stage for sinking the pin of the device under test to a second current level. The first input receives a commutation voltage and the second input receives a voltage at the output of the transconductance stage from the device under test. When the output voltage is above the commutation voltage, the first limiting current source is active and when the output voltage is below the commutation voltage, the second limiting current source is active. Thus, one of the limiting current sources the device under test with a current and the other limiting current source sinks current from the device under test. In certain embodiments, the gain of the circuit is programmable and therefore, the needed voltage differential to transition between states can be varied and made extremely small. In addition, the gain can be set to program the output resistance of the circuit.

摘要翻译： 公开了用于测试被测器件的引脚的引脚测试设备中作为无桥电流负载工作的电路。 该电路包括具有至少第一输入和第二输入的跨导级，以及能够被耦合到被测器件引脚的至少一个输出。 电路还包括耦合到跨导级的第一极限电流源，用于将待测器件的引脚送到第一电流电平，以及耦合到跨导级的第二极限电流源，用于将待测器件的引脚吸入到 第二当前水平。 第一个输入端接收一个换向电压，第二个输入端接收来自被测器件的跨导级输出端的电压。 当输出电压高于换向电压时，第一极限电流源有效，当输出电压低于换向电压时，第二极限电流源有效。 因此，限流电流中的一个来源是被测器件的电流，另一个极限电流源从被测器件吸收电流。 在某些实施例中，电路的增益是可编程的，因此，所需的电压差异在状态之间转换可以变化并且变得非常小。 另外，可以设置增益来编程电路的输出电阻。

公开(公告)号：US4484111A

公开(公告)日：1984-11-20

申请号：US415979

申请日：1982-09-08

申请人： Richard H. McMorrow, Jr. ,  Geoffrey Haigh

发明人： Richard H. McMorrow, Jr. ,  Geoffrey Haigh

IPC分类号： G01R13/22 ,  H03F3/30 ,  H01J29/70 ,  H01J29/76

CPC分类号： G01R13/22 ,  H03F3/3071

摘要： The signal amplifier is used for amplification of an input signal with varying control amplitude, particularly in the field of electromedicine. The amplifier contains at least two amplification paths which supply current to the deflection coil of the recording device. In the first path is arranged a first individual amplifier which is designed as a voltage-controlled current source. It is rated for a lower control range. This lower range is chosen to be the range in which the input signal lies during relatively long periods of time. In the second path is arranged a second individual amplifier. This amplifier is designed as a voltage amplifier. It is rated for a higher control range and supplies the deflection coil with peak current during relatively short periods of time.

摘要翻译： 信号放大器用于放大具有变化的控制振幅的输入信号，特别是在电子医学领域。 放大器包含至少两个向记录装置的偏转线圈提供电流的放大路径。 在第一路径中布置有被设计为电压控制电流源的第一单独放大器。 它的控制范围较低。 该较低范围被选择为输入信号在较长时间段内所处的范围。 在第二路径中布置有第二个单独的放大器。 该放大器设计为电压放大器。 额定值为更高的控制范围，并在较短的时间内为偏转线圈提供峰值电流。

公开(公告)号：US08736343B2

公开(公告)日：2014-05-27

申请号：US13077324

申请日：2011-03-31

申请人： Baoxing Chen ,  Geoffrey Haigh

发明人： Baoxing Chen ,  Geoffrey Haigh

IPC分类号： H03L5/00 ,  H04B3/00

CPC分类号： H01F17/0006 ,  H01F19/08 ,  H01F2017/0093 ,  H01F2019/085 ,  H01F2038/143 ,  H01L23/5227 ,  H01L23/60 ,  H01L23/645 ,  H01L2224/05554 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2924/00014 ,  H01L2924/13091 ,  H03K5/1252 ,  H04L25/0266 ,  H01L2924/00 ,  H01L2224/45099

摘要： A logic signal isolator comprising a transformer having a primary winding and a secondary winding; a transmitter circuit which drives said primary winding in response to a received logic signal, such that in response to a first type of edge in the logic signal, a signal of a first predetermined type is supplied to the primary winding and in response to a second type of edge in the logic signal, a signal of a second predetermined type is supplied to said primary winding, the primary winding and the transmitter being referenced to a first ground; and the secondary winding being referenced to a second ground which is galvanically isolated from the first ground and said secondary winding supplying to a receiver circuit signals received in correspondence to the signals provided to the primary winding, the receiver reconstructing the received logic signal from the received signals.

摘要翻译： 一种逻辑信号隔离器，包括具有初级绕组和次级绕组的变压器; 发射机电路，其响应于接收到的逻辑信号驱动所述初级绕组，使得响应于逻辑信号中的第一类型的边缘，将第一预定类型的信号提供给初级绕组并响应于第二级 逻辑信号中的边缘类型，将第二预定类型的信号提供给所述初级绕组，所述初级绕组和发射器参考第一地面; 并且次级绕组参考与第一地线电隔离的第二地线，并且所述次级绕组向接收器电路提供对应于提供给初级绕组的信号而接收的信号，接收机从接收器重建接收到的逻辑信号 信号。