公开(公告)号：US20100067262A1

公开(公告)日：2010-03-18

申请号：US12461593

申请日：2009-08-18

申请人： Jian Chen ,  Koji SONOBE

发明人： Jian Chen ,  Koji SONOBE

IPC分类号： H02M3/335

CPC分类号： H02M3/33592 ,  Y02B70/1433 ,  Y02B70/1475

摘要： A switching power source device for supplying power to a load includes a series resonant circuit, a plurality of main switch elements or main switch element groups for switching a current. path of the series resonant circuit, a transformer for inducing a secondary current from the series resonant circuit, a plurality of synchronous rectification switch elements for rectifying the secondary current, a maximum on width control circuit for ordering a start and a completion of a maximum on width to the synchronous rectification switch element in synchronization with a timing of turning on the main switch elements Or the main switch element groups, and a synchronous control circuit. The circuit controls an on period of the synchronous rectification switch element so as to turn on the synchronous rectification switch element in synchronization with a particular timing, and turn off in synchronization with another timing.

摘要翻译： 用于向负载供电的开关电源装置包括串联谐振电路，用于切换电流的多个主开关元件或主开关元件组。 串联谐振电路的路径，用于从串联谐振电路感应次级电流的变压器，用于整流二次电流的多个同步整流开关元件，用于排序开始和完成最大值的最大宽度控制电路 同步整流开关元件的宽度与打开主开关元件或主开关元件组的定时同步，以及同步控制电路。 电路控制同步整流开关元件的导通周期，以与特定定时同步地接通同步整流开关元件，并与另一定时同步地关断。

公开(公告)号：US07859860B2

公开(公告)日：2010-12-28

申请号：US12461593

申请日：2009-08-18

申请人： Jian Chen ,  Koji Sonobe

发明人： Jian Chen ,  Koji Sonobe

IPC分类号： H02M3/335 ,  H02M7/217

CPC分类号： H02M3/33592 ,  Y02B70/1433 ,  Y02B70/1475

摘要： A switching power source device for supplying power to a load includes a series resonant circuit, a plurality of main switch elements or main switch element groups for switching a current path of the series resonant circuit, a transformer for inducing a secondary current from the series resonant circuit, a plurality of synchronous rectification switch elements for rectifying the secondary current, a maximum on width control circuit for ordering a start and a completion of a maximum on width to the synchronous rectification switch element in synchronization with a timing of turning on the main switch elements or the main switch element groups, and a synchronous control circuit. The circuit controls an on period of the synchronous rectification switch element so as to turn on the synchronous rectification switch element in synchronization with a particular timing, and turn off in synchronization with another timing.

摘要翻译： 用于向负载供电的开关电源装置包括串联谐振电路，用于切换串联谐振电路的电流路径的多个主开关元件或主开关元件组，用于从串联谐振电路感应次级电流的变压器 电路，用于整流二次电流的多个同步整流开关元件，用于与同步整流开关元件同步的同步整流开关元件的开始和完成最大宽度控制电路的同步整流开关元件 元件或主开关元件组，以及同步控制电路。 电路控制同步整流开关元件的导通周期，以与特定定时同步地接通同步整流开关元件，并与另一定时同步关断。

公开(公告)号：US08243473B2

公开(公告)日：2012-08-14

申请号：US12605637

申请日：2009-10-26

申请人： Jian Chen ,  Koji Sonobe

发明人： Jian Chen ,  Koji Sonobe

IPC分类号： H02M3/335

CPC分类号： H02M3/337 ,  H02M3/33592 ,  H02M2001/0032 ,  H02M2001/0058 ,  Y02B70/1475 ,  Y02B70/1491 ,  Y02B70/16

摘要： The invention provides a switching power supply device which can detect a light load state on a pulse-by-pulse basis without worsening power efficiency. In a synchronous control circuit, for each timing of the turning-on of main switching elements, the delay time Tdif of the conduction timing of internal diodes Ds determined according to the magnitude of the load LD is detected by a comparator, a reference time pulse Tsrs having a prescribed time width is generated by a load judgment circuit, and the logical product of the two is generated by an AND circuit. By this means, the load is regarded as being a light load when the delay time Tdif is longer than the reference time pulse Tsrs, and the synchronous rectification MOSFETs Qs are not turned on.

摘要翻译： 本发明提供一种开关电源装置，其可以逐脉冲地检测轻负载状态，而不会降低功率效率。 在同步控制电路中，对于主开关元件导通的每个定时，根据负载LD的大小确定的内部二极管Ds的导通定时的延迟时间Tdif由比较器检测，基准时间脉冲 具有规定时间宽度的Tsrs由负载判断电路产生，并且由AND电路产生两者的逻辑积。 通过这种方式，当延迟时间Tdif比参考时间脉冲Tsrs长时，负载被认为是轻负载，同步整流MOSFET Qs不导通。

公开(公告)号：US20100142229A1

公开(公告)日：2010-06-10

申请号：US12591776

申请日：2009-12-01

申请人： Jian Chen ,  Koji Sonobe

发明人： Jian Chen ,  Koji Sonobe

IPC分类号： H02M3/335

CPC分类号： H02M3/33592 ,  H02M2001/0048 ,  Y02B70/1433 ,  Y02B70/1475 ,  Y02B70/1491

摘要： A switching power source device which has main switch elements which switch a current path of the series resonant circuit, and a transformer which induces a current to a secondary side, controls the main switch elements on a primary side. Synchronous rectification switch elements are turned ON and OFF in response to one of the main switch elements. A synchronous control circuit which turns the synchronous rectification switch element ON in synchronization with an ON timing of the main switch element, or a conduction timing of internal diodes in the synchronous rectification switch elements detected by an inter-terminal voltage signal of the synchronous rectification switch element, whichever timing is later, determines a maximum ON width of the synchronous rectification switch element in accordance with a delay time of the conduction timing of the internal diodes with respect to the ON timing of the main switch element.

摘要翻译： 具有切换串联谐振电路的电流路径的主开关元件和向二次侧引入电流的变压器的开关电源装置控制主开关元件。 响应于主开关元件之一，同步整流开关元件被接通和断开。 同步控制电路，其使同步整流开关元件与主开关元件的接通定时同步地接通或由同步整流开关的端子间电压信号检测的同步整流开关元件中的内部二极管的导通定时 元件，无论哪个定时，根据内部二极管的导通定时相对于主开关元件的导通定时的延迟时间，确定同步整流开关元件的最大导通宽度。

公开(公告)号：US08411469B2

公开(公告)日：2013-04-02

申请号：US12591776

申请日：2009-12-01

申请人： Jian Chen ,  Koji Sonobe

发明人： Jian Chen ,  Koji Sonobe

IPC分类号： H02M3/335

CPC分类号： H02M3/33592 ,  H02M2001/0048 ,  Y02B70/1433 ,  Y02B70/1475 ,  Y02B70/1491

摘要： A switching power source device which has main switch elements which switch a current path of the series resonant circuit, and a transformer which induces a current to a secondary side, controls the main switch elements on a primary side. Synchronous rectification switch elements are turned ON and OFF in response to one of the main switch elements. A synchronous control circuit which turns the synchronous rectification switch element ON in synchronization with an ON timing of the main switch element, or a conduction timing of internal diodes in the synchronous rectification switch elements detected by an inter-terminal voltage signal of the synchronous rectification switch element, whichever timing is later, determines a maximum ON width of the synchronous rectification switch element in accordance with a delay time of the conduction timing of the internal diodes with respect to the ON timing of the main switch element.

摘要翻译： 具有切换串联谐振电路的电流路径的主开关元件和向二次侧引入电流的变压器的开关电源装置控制主开关元件。 响应于主开关元件之一，同步整流开关元件被接通和断开。 同步控制电路，其使同步整流开关元件与主开关元件的接通定时同步地接通或由同步整流开关的端子间电压信号检测的同步整流开关元件中的内部二极管的导通定时 元件，无论哪个定时，根据内部二极管的导通定时相对于主开关元件的导通定时的延迟时间，确定同步整流开关元件的最大导通宽度。

公开(公告)号：USD1008676S1

公开(公告)日：2023-12-26

申请号：US29820654

申请日：2021-12-23

申请人： Jian Chen

设计人： Jian Chen

摘要： FIG. 1 is a perspective view of a step-stool showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof;
FIG. 8 is a bottom side perspective view thereof; and,
FIG. 9 is a perspective view of the step-stool of FIG. 1, shown with unclaimed patterned ornamentation.
The broken lines in the drawings depict portions of the step-stool that form no part of the claimed design.

公开(公告)号：US20200032191A1

公开(公告)日：2020-01-30

申请号：US16586989

申请日：2019-09-29

申请人： Jian Chen

发明人： Jian Chen

IPC分类号： C12M1/42 ,  C12M1/12 ,  B01L3/00

摘要： The shock tube comprises a tube, a first electrode, a second electrode and a stopple, wherein the tube is internally provided with a cavity for accommodating a target liquid sample. The first electrode is arranged at one end of the tube. The second electrode is arranged in the stopple, and the outer end of the second electrode can be electrically connected with the exterior via an opening of the stopple. The stopple is internally provided with an elastic piece connected with the second electrode. The outer side of the elastic piece is connected with the stopple, and the inner side of the elastic piece is connected with the second electrode. The invention further provides a cell electroporation device where the shock tube can be placed.

公开(公告)号：US10392634B2

公开(公告)日：2019-08-27

申请号：US15472003

申请日：2017-03-28

申请人： Jingwen Zhou ,  Jian Chen ,  Yongkun Lv ,  Guocheng Du

发明人： Jingwen Zhou ,  Jian Chen ,  Yongkun Lv ,  Guocheng Du

IPC分类号： C12P7/22 ,  C12N9/04 ,  C12N9/08 ,  C12N1/20 ,  C12N15/00 ,  C07H21/04 ,  C12N15/62 ,  C12P17/18

摘要： The present invention provides a method for high-efficiency production of pinoresinol by use of an H2O2 auto-scavenging enzymatic cascade. It uses eugenol as the substrate, which is relatively inexpensive and is industrially available. It uses an enzymatic cascade to remove H2O2 produced in the process of pinoresinol synthesis, thereby reducing its inhibitory effect on the enzyme activity. In addition, the present invention uses whole cells as a catalyst, which can continuously regenerate cofactors needed by the enzyme, thus eliminating the need for exogenous addition of expensive cofactors during the reaction. The yield of the present invention can reach 7.12 g/L and the conversion rate is 61.55%.

公开(公告)号：US10085470B2

公开(公告)日：2018-10-02

申请号：US15204991

申请日：2016-07-07

申请人： Fang Fang ,  Jiran Zhang ,  Xifei Yang ,  Chuanwang Hu ,  Jian Chen ,  Guocheng Du

发明人： Fang Fang ,  Jiran Zhang ,  Xifei Yang ,  Chuanwang Hu ,  Jian Chen ,  Guocheng Du

IPC分类号： A23L5/20 ,  A23L27/50 ,  A23L23/00 ,  C12N1/20 ,  C12R1/07

摘要： The present invention provides a method for improving the quality of soy sauce using Bacillus amyloliquefaciens, which relates to the field of microbiology and food technology. The method comprises inoculating Bacillus amyloliquefaciens BBE JY06 during soy sauce fermentation. With Bacillus amyloliquefaciens addition during soy sauce fermentation, the aroma and tastes of soy sauce is improved and the ethyl carbamate content in soy sauce is decreased as well.

公开(公告)号：US09690855B2

公开(公告)日：2017-06-27

申请号：US13549416

申请日：2012-07-14

申请人： Sheng Hua Bao ,  Jian Chen ,  Zhong Su ,  Rui Wang

发明人： Sheng Hua Bao ,  Jian Chen ,  Zhong Su ,  Rui Wang

IPC分类号： G06F17/30

CPC分类号： G06F17/30864

摘要： Provided is a method applied to a system including a plurality of sensors, a proxy, and a server. The method includes: measuring objects by the plurality of sensors to obtain first measurement values; computing a correlation among the first measurement values by the server based on the first measurement values; computing an actual measurement value of a second measurement value by the proxy based on the first measurement values and a given function; verifying the plurality of sensors by setting one or more sensors as verification target sensors in turn by the server at predetermined timing; computing a predicted value of the second measurement value by the server based on the correlation and the first measurement values obtained from the other sensors; and outputting the predicted value of the second measurement value instead of the actual measurement value thereof at least during the verification of the verification target sensors.