公开(公告)号：US07202711B2

公开(公告)日：2007-04-10

申请号：US11220767

申请日：2005-09-07

申请人： Mark W. Gose ,  Douglas B. Osborn

发明人： Mark W. Gose ,  Douglas B. Osborn

IPC分类号： H03B1/00

CPC分类号： H03F3/347 ,  G01R19/0092 ,  H03F2200/321 ,  H03F2200/462

摘要： An integrated driver with improved load current sense capability includes a first transistor, a first amplifier, a second transistor, a third transistor, a second amplifier and a fourth transistor. The integrated driver allows for significantly better fault handling capability, provides accurate thermal and current sensing capability and reduces I/O pin count over prior designs.

摘要翻译： 具有改进的负载电流检测能力的集成驱动器包括第一晶体管，第一放大器，第二晶体管，第三晶体管，第二放大器和第四晶体管。 集成驱动器可显着提高故障处理能力，提供精确的热和电流检测功能，并减少I / O引脚数量超过以前的设计。

公开(公告)号：US5572472A

公开(公告)日：1996-11-05

申请号：US421774

申请日：1995-04-14

申请人： Mark B. Kearney ,  Dennis M. Koglin ,  Douglas B. Osborn ,  William P. Whitlock

发明人： Mark B. Kearney ,  Dennis M. Koglin ,  Douglas B. Osborn ,  William P. Whitlock

IPC分类号： G11C17/18 ,  G11C29/04 ,  G11C29/00

CPC分类号： G11C17/18 ,  G11C29/04

摘要： A "zener-zap" memory cell with pretest capability for testing effects that would be realized from permanently programming the memory cell is provided. The memory cell is addressable and provides a binary signal at an output. The memory cell uses a zener diode as a memory element which is permanently programmed when selectively coupled to a programming voltage which exceeds the reverse breakdown voltage of the zener diode. The memory cell has a test circuit for generating the programmed binary signal at the output of the memory cell prior to permanently programming the zener diode and when coupled to a pretest voltage.

摘要翻译： 提供了具有预测试功能的“齐纳比”存储器单元，用于测试由永久编程存储器单元实现的效果。 存储单元可寻址，并在输出端提供二进制信号。 存储器单元使用齐纳二极管作为存储元件，当被选择性地耦合到超过齐纳二极管的反向击穿电压的编程电压时，其被永久编程。 存储单元具有测试电路，用于在永久地编程齐纳二极管之前和当耦合到预测试电压时，在存储器单元的输出处产生编程的二进制信号。

公开(公告)号：US5608348A

公开(公告)日：1997-03-04

申请号：US651440

申请日：1996-05-22

申请人： Mark B. Kearney ,  Douglas B. Osborn

发明人： Mark B. Kearney ,  Douglas B. Osborn

IPC分类号： G05F3/26 ,  G05F3/02

CPC分类号： G05F3/265

摘要： A programmable current mirror circuit suitable for incorporation into circuit designs and programmably tailored to produce a ratio of current output over current input based upon the status of a plurality of binary weighted switches. The resulting circuit is readily tailored so as to be insensitive to the "on" characteristics of the switches. Alternatively, the switches may comprise transistors controlled by accompanying circuitry operable to produce an equivalent switching function. An input current divider circuit network formed from an array of current mirrors fractionally divides an input current into a plurality of equivalent currents. A binary weighting circuit receives such fractional input currents, and applies a binary weight to each of same. A voltage to current converter receives the binary weighted voltage and converts the voltage to a weighted output current proportional to the input current directly in relation to the binary weighting applied via the binary weighting circuit.

摘要翻译： 一种可编程电流镜电路，其适用于并入电路设计中，并可编程地根据多个二进制加权开关的状态产生过流输入的电流输出比。 所得到的电路容易定制，以便对开关的“开”特性不敏感。 或者，开关可以包括由可操作以产生等效切换功能的相关电路控制的晶体管。 由电流镜阵列形成的输入分流器电路网将输入电流分为多个等效电流。 二进制加权电路接收这样的分数输入电流，并对其中的每一个应用二进制权重。 电压 - 电流转换器接收二进制加权电压，并将该电压直接转换为与输入电流成正比的加权输出电流相对于通过二进制加权电路施加的二进制加权。

公开(公告)号：US4860152A

公开(公告)日：1989-08-22

申请号：US303423

申请日：1989-01-30

申请人： Douglas B. Osborn

发明人： Douglas B. Osborn

IPC分类号： H01L29/78 ,  H01L27/04 ,  H02H7/20 ,  H03K17/08 ,  H03K17/082 ,  H03K17/16 ,  H03K17/695

CPC分类号： H03K17/0822

摘要： A snubber circuit comprising two stages regulates the gate current of a MOSFET in relation to the drain voltage at turnoff to clamp transient inductive voltages to a nondestructive level. At the onset of the turnoff, a current source is activated to discharge the gate capacitance, and the snubber controls the magnitude of such current in relation to the sensed drain voltage to stabilize the drain voltage at a nondestructive level. When the drain voltage approaches its limit value, a current injection circuit supplies additional current to the gate to sustain the MOSFET conduction, again in relation to the sensed drain voltage. When the inductive energy stored in the load is substantially dissipated, the drain voltage falls; at such point, the current injection circuit is disabled and the conduction of the current source is increased to complete the turnoff of the MOSFET.

公开(公告)号：US4335578A

公开(公告)日：1982-06-22

申请号：US154723

申请日：1980-05-30

申请人： Douglas B. Osborn ,  Robert L. Pons

发明人： Douglas B. Osborn ,  Robert L. Pons

IPC分类号： F24J2/07 ,  F24J2/12 ,  F24J2/32 ,  F24J2/46 ,  F24J2/54 ,  F03G7/02

CPC分类号： F24J2/542 ,  F24J2/07 ,  F24J2/12 ,  F24J2/32 ,  F24J2/4649 ,  Y02E10/41 ,  Y02E10/42 ,  Y02E10/44 ,  Y02E10/47

摘要： A solar converter is disclosed which has particular applicability at the focal point of a parabolic concentrator. The converter absorbs solar thermal radiation in a cavity type receiver and transports the heat via a secondary fluid to a heat exchanger which contains a primary (i.e., working) fluid used for process heating or to power a heat engine employing either Stirling, Rankine, or Brayton thermodynamic cycles. The secondary fluid is boiled within the receiver by the trapped solar radiation and the released vapor rises along an elevated path to the heat exchanger. The vapor condenses on the surfaces of the heat exchanger, thereby transferring heat to the engine working fluid. The condensed liquid then flows by means of gravity back to the solar receiver. The walls of the cavity receiver are typically comprised of two concentric cylinders joined at one end in a half toroid and at the other end in concentric half spheres. Optimum primary and secondary fluids, which may be different from each other and are different for different applications, are described.

摘要翻译： 公开了一种在抛物面聚光器的焦点具有特别适用性的太阳能转换器。 转换器吸收空腔型接收器中的太阳热辐射，并将热量经由次级流体输送到热交换器，热交换器包含用于工艺加热的初级（即工作）流体，或者为使用斯特林，兰金或 Brayton热力循环。 二次流体被捕获的太阳辐射在接收器内沸腾，并且释放的蒸气沿着升高的路径升高到热交换器。 蒸汽在热交换器的表面上冷凝，从而将热量传递给发动机工作流体。 冷凝的液体然后通过重力流向太阳能接收器。 空腔接收器的壁通常包括两个同心圆筒，其一端连接在半环形环中，另一端连接在同心半球体中。 描述了可能彼此不同并且对于不同应用是不同的最佳一次和二次流体。