中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

32 records (took 0.018 seconds)

    Current prediction in a switching power supply
    2.
    发明授权
    Current prediction in a switching power supply 有权
    开关电源中的电流预测

    公开(公告)号：US07391188B2

    公开(公告)日：2008-06-24

    申请号：US11193635

    申请日：2005-08-01

    Applicant: James K. Jacobs ,  Sankar DasGupta ,  David Vandermeer

    Inventor： James K. Jacobs ,  Sankar DasGupta ,  David Vandermeer

    IPC: G05F1/10

    CPC classification number: H02M3/3376 ,  H02M2001/0009 ,  H02M2001/0048 ,  H02M2001/0058 ,  H03K17/08142 ,  H03K17/133 ,  H03K17/162 ,  H03K17/6872 ,  Y02B70/1491

    Abstract: A high efficiency switching power supply including an analog front end, a battery control circuitry portion, a display and equalization circuitry portion, field effect transistor (FET) drivers, an isolated power supply transformer circuitry (and three associated sets of tap circuitry), microcontroller circuitry, oscillator circuitry, overcharge protection circuitry, programmable logic circuitry portion, and a zero current predictor. Overbiasing of the FET power supply switches, and/or other various circuitry features disclosed herein, helps achieve electrical power efficiencies of preferably greater than 95%, even more preferably greater than 98% and even more preferably greater than 99%. Preferably, the switching power supply has one or more of the following: (1) high electrical power efficiency (>95%. >98%, >99%); (2) overbiasing of a gate of a power supply switch; (3) a power supply switch with a low gate capacitance ratio; (4) multiple modes of operation; and (5) current prediction wherein an inductor voltage is used to control a constant current capacitor whose voltage indicates the level of current in the inductor.

    Abstract translation: 高效开关电源，包括模拟前端，电池控制电路部分，显示和均衡电路部分，场效应晶体管（FET）驱动器，隔离电源变压器电路（以及三个相关的抽头电路组），微控制器 电路，振荡器电路，过充电保护电路，可编程逻辑电路部分和零电流预测器。 FET电源开关和/或本文公开的其它各种电路特征的偏置有助于实现优选大于95％，甚至更优选大于98％，甚至更优选大于99％的电功率效率。 优选地，开关电源具有以下一个或多个：（1）高电力效率（> 95％，> 98％，> 99％）; （2）电源开关的栅极偏置; （3）栅极电容比低的电源开关; （4）多种操作模式; 和（5）电流预测，其中使用电感器电压来控制其电压指示电感器中的电流电平的恒流电容器。

    Particulate electrode including electrolyte for a rechargeable lithium battery
    3.
    发明授权
    Particulate electrode including electrolyte for a rechargeable lithium battery 有权

    公开(公告)号：US07033702B2

    公开(公告)日：2006-04-25

    申请号：US10933243

    申请日：2004-09-03

    Applicant: Sankar Dasgupta ,  James K. Jacobs ,  Rakesh Bhola

    Inventor： Sankar Dasgupta ,  James K. Jacobs ,  Rakesh Bhola

    IPC: H01M4/80

    CPC classification number: H01M4/13 ,  H01M4/131 ,  H01M4/133 ,  H01M4/505 ,  H01M4/525 ,  H01M4/621 ,  H01M6/188 ,  H01M10/0525 ,  H01M10/0565 ,  Y10T29/49108 ,  Y10T29/49115

    Abstract: A matted particulate electrode located between the current collector and a porous separator of a rechargeable lithium battery is described, which contains electro-active particles intermixed with pliable, solid, lithium ion conducting, polymer electrolyte filaments having adhesive surfaces. The electro-active particles and the optionally added electro-conductive carbon particles adhere to the tacky surface of the adhesively interlinking polymer electrolyte filaments. The matted particulate electrode is impregnated with an organic solution containing another lithium compound. In a second embodiment the porous separator is coated on at least one of its faces, with polymer electrolyte having an adhesive surface and made of the same polymer as the electrolyte filaments. The polymer electrolyte filaments in the matted layer may adhere to the coated surface of the separator. In addition the polymer coating is partially filling the pores of the porous electrolyte, but leaving sufficient space in the pores for the organic solution to penetrate the separator of the lithium battery.

    High efficiency switching power supply
    4.
    发明授权
    High efficiency switching power supply 有权
    高效开关电源

    公开(公告)号：US07432687B2

    公开(公告)日：2008-10-07

    申请号：US11193630

    申请日：2005-08-01

    Applicant: James K. Jacobs ,  Sankar DasGupta ,  David Vandermeer

    Inventor： James K. Jacobs ,  Sankar DasGupta ,  David Vandermeer

    IPC: G05F1/10 ,  G05F1/44

    CPC classification number: H02M3/3376 ,  H02M2001/0048 ,  H02M2001/0058 ,  H03K17/133 ,  H03K17/162 ,  H03K17/6872 ,  Y02B70/1491

    Abstract: A high efficiency switching power supply including an analog front end, a battery control circuitry portion, a display and equalization circuitry portion, field effect transistor (FET) drivers, an isolated power supply transformer circuitry (and three associated sets of tap circuitry), microcontroller circuitry, oscillator circuitry, overcharge protection circuitry, programmable logic circuitry portion, and a zero current predictor. Overbiasing of the FET power supply switches, and/or other various circuitry features disclosed herein, helps achieve electrical power efficiencies of preferably greater than 95%, even more preferably greater than 98% and even more preferably greater than 99%. Preferably, the switching power supply has one or more of the following: (1) high electrical power efficiency (>95%. >98%, >99%); (2) overbiasing of a gate of a power supply switch; (3) a power supply switch with a low gate capacitance ratio; (4) multiple modes of operation; and (5) current prediction wherein an inductor voltage is used to control a constant current capacitor whose voltage indicates the level of current in the inductor.

    Abstract translation: 高效开关电源，包括模拟前端，电池控制电路部分，显示和均衡电路部分，场效应晶体管（FET）驱动器，隔离电源变压器电路（以及三个相关的抽头电路组），微控制器 电路，振荡器电路，过充电保护电路，可编程逻辑电路部分和零电流预测器。 FET电源开关和/或本文公开的其它各种电路特征的偏置有助于实现优选大于95％，甚至更优选大于98％，甚至更优选大于99％的电功率效率。 优选地，开关电源具有以下一个或多个：（1）高电力效率（> 95％，> 98％，> 99％）; （2）电源开关的栅极偏置; （3）栅极电容比低的电源开关; （4）多种操作模式; 和（5）电流预测，其中使用电感器电压来控制其电压指示电感器中的电流电平的恒流电容器。

    Packaging assembly for a lithium battery
    5.
    发明授权
    Packaging assembly for a lithium battery 失效
    锂电池包装组件

    公开(公告)号：US6080508A

    公开(公告)日：2000-06-27

    申请号：US32780

    申请日：1998-03-06

    Applicant: Sankar Dasgupta ,  James K. Jacobs

    Inventor： Sankar Dasgupta ,  James K. Jacobs

    IPC: H01M2/02 ,  H01M2/06 ,  H01M2/26 ,  H01M2/30 ,  H01M10/0525

    CPC classification number: H01M2/0275 ,  H01M2/0267 ,  H01M2/06 ,  H01M10/0525

    Abstract: The terminals of a thin plate rechargeable lithium battery are coated with a heat-sealable polymer. The coating forms a band on each face of the terminals and the band is heat-sealed to the inner insulator layers of a multi-layered polymer laminate enclosing the thin plate rechargeable lithium battery at a location close to an open edge of the insulator layer. Small sheets of rigid, high melting point, polymeric materials are inserted between the bands of coating carried by the terminals and the edge of the multi-layered laminate enclosing the lithium battery. A portion of the sheets of polymeric material is adhesively attached to the face of the terminal adjacent the bands of coating. The open edges of the multi-layered polymer laminate enclosure are subsequently sealed to enclose completely the thin plate lithium battery.

    Abstract translation: 薄板可再充电锂电池的端子涂有可热封聚合物。 涂层在端子的每个表面上形成带，并且将带被热密封到封闭薄板可再充电锂电池的多层聚合物层压体的内绝缘体层，该绝缘层位于靠近绝缘体层的开口边缘的位置。 将小片刚性，高熔点的聚合材料插入由端子承载的涂层带和封闭锂电池的多层层压板的边缘之间。 聚合物材料片的一部分粘合地附着到邻近涂层带的端子的表面上。 随后密封多层聚合物层压体外壳的开口边缘以完全包围薄板锂电池。

    Composite electrode for a lithium battery
    8.
    发明授权
    Composite electrode for a lithium battery 失效
    锂电池复合电极

    公开(公告)号：US5582935A

    公开(公告)日：1996-12-10

    申请号：US535673

    申请日：1995-09-28

    Applicant: Sankar Dasgupta ,  James K. Jacobs

    Inventor： Sankar Dasgupta ,  James K. Jacobs

    IPC: H01M4/64 ,  H01M10/05 ,  H01M4/58

    CPC classification number: H01M10/05 ,  H01M4/02 ,  H01M4/64

    Abstract: The composite positive electrode comprises a metallic current collector sheet the surface of which bears a double layer of a mixed oxide interface containing an oxide of the metal of the current collector and a transition metal oxide, and a layer of the same transition metal oxide over the mixed oxide interface. The double layer is in contact with a positive electrode containing an oxide of the same transition metal as the cathode active ingredient. The composite positive electrode is designed to be incorporated in a rechargeable lithium battery.

    Abstract translation: 复合正极包括金属集电体片，其表面具有包含集电体的金属的氧化物和过渡金属氧化物的混合氧化物界面的双层，以及在该层上的相同的过渡金属氧化物层 混合氧化物界面。 双层与含有与阴极活性成分相同的过渡金属的氧化物的正极接触。 复合正电极被设计成可再充电的锂电池。

    Current collector for lithium ion battery
    9.
    发明授权
    Current collector for lithium ion battery 失效
    锂离子电池集电器

    公开(公告)号：US5464706A

    公开(公告)日：1995-11-07

    申请号：US204439

    申请日：1994-03-02

    Applicant: Sankar Dasgupta ,  James K. Jacobs

    Inventor： Sankar Dasgupta ,  James K. Jacobs

    IPC: H01M4/66 ,  H01M6/14 ,  H01M6/18 ,  H01M2/14

    CPC classification number: H01M10/0525 ,  H01M4/663 ,  H01M4/664 ,  H01M4/668

    Abstract: An improved lithium ion battery is described wherein corrosion of the current collector in contact with the electrode face is greatly reduced. In one embodiment an electrically conductive, ceramic layer is inserted between the current collector and the corresponding major face of the cathode. In another embodiment the metallic current collector plate is replaced by an electrically conductive laminated organic polymer having electrically conductive particles dispersed therein.

    Abstract translation: 描述了改进的锂离子电池，其中与电极面接触的集电体的腐蚀大大降低。 在一个实施例中，导电陶瓷层插入在集电器和阴极的相应主面之间。 在另一个实施例中，金属集电板由其中分散有导电颗粒的导电层压有机聚合物代替。

    Ceramic articles made of compositions containing borides and nitrides
    10.
    发明授权
    Ceramic articles made of compositions containing borides and nitrides 失效
    由含有硼化物和氮化物的组合物制成的陶瓷制品

    公开(公告)号：US5409868A

    公开(公告)日：1995-04-25

    申请号：US172195

    申请日：1993-12-23

    Applicant: Sankar Dasgupta ,  Rakesh Bhola ,  James K. Jacobs

    Inventor： Sankar Dasgupta ,  Rakesh Bhola ,  James K. Jacobs

    IPC: C04B35/58

    CPC classification number: C04B35/58071 ,  C04B35/58028 ,  C04B35/581 ,  C04B35/583

    Abstract: A composition is described for hard sintered ceramic articles having densities which are 97% or higher than the theoretical density. The composition contains up to 98.5 vol. % titanium diboride, 0-59 vol % aluminum nitride, 0-59 vol. % hexagonal boron nitride, 0-59 vol. % zirconium nitride, and in addition, zirconia, hafnia or ceria having particle size 0.7 .mu.m or less, in 1.5 vol. % and optionally, a sintering aid in less 2 vol. %. The mixture of the above components is further mixed and ground by ball-milling and vibro-milling in the presence of an aliphatic alcohol, cast into required shapes and sintered in an inert gas at temperatures below 1950.degree. C. The sintered ceramic articles obtained of this composition include ceramic cutting tool inserts, impact-resistant ceramic structures, nozzles, extrusion dies and ceramic evaporating boats.

    Abstract translation: 对于密度为理论密度的97％以上的硬质烧结陶瓷制品， 该组合物含量高达98.5vol。 ％二硼化钛，0-59体积％氮化铝，0-59体积％ ％六方氮化硼，0-59体积％ ％的氮化锆，另外还有在1.5体积％的粒径为0.7μm以下的氧化锆，铪或二氧化铈。 ％和任选地，少于2体积的烧结助剂。 ％。 将上述组分的混合物进一步混合并在脂肪醇存在下通过球磨和振动研磨，铸成所需形状并在低于1950℃的温度下在惰性气体中烧结。烧结陶瓷制品 该组合物包括陶瓷切削工具刀片，耐冲击陶瓷结构，喷嘴，挤出模具和陶瓷蒸发船。

Patent Agency Ranking