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公开(公告)号：US5278458A
公开(公告)日：1994-01-11
申请号：US807545
申请日：1991-12-13
IPC分类号： H03K3/3565 , H03K17/30 , H05K3/01 , H05K5/153
CPC分类号： H03K17/302 , H03K3/3565
摘要： One aspect of the present invention includes a circuit for detecting when an input voltage exceeds a predetermined threshold. The circuit for detecting includes an input for receiving the input voltage. Further, the circuit includes a plurality of switching devices, wherein each of the switching devices comprises a first and second terminal for defining a variable conductive path, and a third terminal for receiving a signal to control said variable conductive path. The plurality of switching devices includes three switching devices. The first switching device has a first terminal coupled to the input and a second terminal coupled to a first node. The second switching device has a first terminal coupled to the first node and a second terminal coupled to a second node. Finally, the third switching device has a first terminal coupled to the second node. Each of the first, second and third switching devices are of like conductivity type, and the second node provides a first voltage if the input voltage is below the predetermined threshold and provides a second voltage if the input voltage is above the predetermined threshold.
摘要翻译： 本发明的一个方面包括用于检测输入电压何时超过预定阈值的电路。 用于检测的电路包括用于接收输入电压的输入端。 此外，电路包括多个开关装置，其中每个开关装置包括用于限定可变导电路径的第一和第二端子，以及用于接收控制所述可变导电路径的信号的第三端子。 多个开关装置包括三个开关装置。 第一开关装置具有耦合到输入的第一端子和耦合到第一节点的第二端子。 第二交换设备具有耦合到第一节点的第一终端和耦合到第二节点的第二终端。 最后，第三交换设备具有耦合到第二节点的第一终端。 第一，第二和第三开关装置中的每一个具有类似导电类型，如果输入电压低于预定阈值，则第二节点提供第一电压，并且如果输入电压高于预定阈值则提供第二电压。
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公开(公告)号：US4506138A
公开(公告)日：1985-03-19
申请号：US491870
申请日：1983-05-05
CPC分类号： F01M5/021
摘要： A preheater unit magnetically attachable to the surface of the oil pan of an automobile engine includes an electric heating unit and a magnetic device situated within a rectilinear shell having an open side closed by a non-magnetic heat transfer plate. The heating unit is encased in the plate and surrounds the magnetic device. The magnetic device includes a permanent magnet disposed between two magnetic end portions situated to be operative in the same plane as the outer planar surface of the plate through parallel spaced apart openings in the plate for magnetically attaching the preheater unit to the surface of the oil pan. A temperature control switch within the shell maintains the heat transfer plate within predetermined temperature limits. To avoid problems caused by differences in the coefficients of expansion of the magnet and heat transfer plate, a magnet positioning member of non-magnetic material cooperates with the shell to hold the magnet in place while allowing room for the magnet to expand and contract.
摘要翻译： 磁性地附接到汽车发动机的油盘表面的预热器单元包括电加热单元和位于具有由非磁性传热板封闭的开放侧的直线壳内的磁性装置。 加热单元被封装在板中并围绕磁性装置。 磁性装置包括设置在两个磁性端部之间的永久磁铁，这两个磁性端部通过平板间隔的开口在板的外部平坦表面上工作，用于将预热器单元磁性地连接到油底壳的表面 。 外壳内的温度控制开关将传热板保持在预定的温度范围内。 为了避免由于磁体和传热板的膨胀系数的差异引起的问题，非磁性材料的磁体定位构件与壳体配合以将磁体保持在适当位置，同时允许磁体膨胀和收缩的空间。
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公开(公告)号：US06944079B2
公开(公告)日：2005-09-13
申请号：US10750736
申请日：2003-12-31
申请人： Gary L. Howe
发明人： Gary L. Howe
CPC分类号： G11C7/1057 , G11C5/066 , G11C7/1051
摘要： The present technique relates to a method and apparatus for detecting a change in a data signal at a buffer device. In the buffer device, first stage comparators may be adapted to receive a data signal and either a first voltage timing reference (VTR) signal or a complimentary VTR signal. The first stage comparators may each deliver an output signal to second stage comparators. Each of the second stage comparators receives the output signal from each of the first stage comparators. From the first stage comparator signals, the second stage comparators produce an output signal, such as a first output signal and a second output signal. These output signals from the second stage comparators are differential signals.
摘要翻译： 本技术涉及一种用于检测缓冲设备上的数据信号的变化的方法和装置。 在缓冲装置中，第一级比较器可适于接收数据信号和第一电压定时基准（VTR）信号或补偿VTR信号。 第一级比较器可以将输出信号各自递送到第二级比较器。 每个第二级比较器从第一级比较器接收输出信号。 从第一级比较器信号，第二级比较器产生诸如第一输出信号和第二输出信号的输出信号。 来自第二级比较器的这些输出信号是差分信号。
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公开(公告)号：US06826092B2
公开(公告)日：2004-11-30
申请号：US10761782
申请日：2004-01-20
申请人： Duc Ho , Gary L. Howe
发明人： Duc Ho , Gary L. Howe
IPC分类号： G11C700
CPC分类号： G11C7/1069 , G11C7/1051 , G11C11/4093 , G11C2207/105 , G11C2207/2254
摘要： An improved predriver circuit for an output buffer is provided that can enable the output buffer to operate well within maximum and minimum IOL current specifications at lower internally regulated voltages. The predriver circuit comprises a limiter device configured to limit or otherwise regulate the maximum gate voltage provided to the gate of the pull-down transistor device. As a result, the pull-down transistor device can be sized optimally to provide additional margin to exceed the minimum IOL specification, while also improving the margin under the maximum IOL specification. The device is configured to limit the maximum gate voltage of the output pull-down transistor device to less than the maximum external power supply voltage.
摘要翻译： 提供了一种用于输出缓冲器的改进的预驱动电路，其能够使输出缓冲器在较低内部稳压电压下在最大和最小IOL电流规范内运行良好。 预驱动电路包括限制器装置，其被配置为限制或以其他方式调节提供给下拉晶体管器件的栅极的最大栅极电压。 因此，可以将下拉式晶体管器件的最佳尺寸设定为提供超出最小IOL规范的额外余量，同时还可提高最大IOL规格下的裕度。 该器件被配置为将输出下拉晶体管器件的最大栅极电压限制为小于最大外部电源电压。
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公开(公告)号：USRE32643E
公开(公告)日：1988-04-12
申请号：US753453
申请日：1985-07-09
IPC分类号： F01M5/02
CPC分类号： F01M5/021
摘要： A preheater unit magnetically attachable to the surface of the oil pan of an automobile engine includes an electric heating unit and a magnetic device situated within a rectilinear shell having an open side closed by a non-magnetic heat transfer plate. The heating unit is encased in the plate and surrounds the magnetic device. The magnetic device includes a permanent magnet disposed between two magnetic end portions situated to be operative in the same plane as the outer planar surface of the plate through parallel spaced apart openings in the plate for magnetically attaching the preheater unit to the surface of the oil pan. A temperature control switch within the shell maintains the heat transfer plate within predetermined temperature limits. To avoid problems caused by differences in the coefficients of expansion of the magnet and heat transfer plate, a magnet positioning member of non-magnetic material cooperates with the shell to hold the magnet in place while allowing room for the magnet to expand and contract.
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公开(公告)号：US4432341A
公开(公告)日：1984-02-21
申请号：US489867
申请日：1983-05-05
申请人： Gary L. Howe , Samuel G. Koutavas
发明人： Gary L. Howe , Samuel G. Koutavas
CPC分类号： F24J2/5241 , F24J2/045 , Y02B10/20 , Y02E10/44 , Y02E10/47
摘要： A solar heater includes an elongated solar collector having two fixedly connected solar panels of highly heat conductive material supported by a roof clamp on a shingled roof. The bottom edges of each of the solar panels include upturned gutter portions. One form of roof clamp for shingled roofs includes a J-shape shingle clamp member having a clamp bolt extending therethrough, and a solar collector clamp member assembled on the bolt and clamped to the bottom gutter portions of the solar panels. A bottom plate of the J-shape clamp member is slid under a shingle of a first shingle course and under a shingle of a second upper shingle course to carry the bolt into the top of the gap between adjacent shingle portions of the first course and to position a top plate of the shingle clamp member over parts of the shank portions of the first course and over a part of the one shingle of the second course. A clamp nut clamps the collector clamp member and the shinlge clamp member firmly to the contacted shingles.
摘要翻译： 太阳能加热器包括细长的太阳能收集器，其具有两个固定连接的太阳能电池板，其高度导热材料由屋顶夹具支撑在带屋顶上。 每个太阳能电池板的底部边缘包括上翻的沟槽部分。 用于带屋顶的一种形式的屋顶夹具包括具有延伸穿过其中的夹紧螺栓的J形木瓦夹紧构件，以及组装在螺栓上并夹在太阳能面板的底部沟槽部分上的太阳能收集器夹紧构件。 J型夹紧构件的底板在第一瓦片进程的瓦板下方滑动，并且在第二上部瓦块的垫片下方滑动，以将螺栓运送到第一道次的相邻瓦块部分之间的间隙的顶部，并且 将木瓦夹紧构件的顶板定位在第一道次的柄部分的一部分上并且在第二道次的一个瓦的一部分上。 夹紧螺母将收集器夹紧构件和闪光夹具构件牢固地夹紧到接触的瓦片。
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公开(公告)号：US06707722B2
公开(公告)日：2004-03-16
申请号：US10202556
申请日：2002-07-23
申请人： Duc Ho , Gary L. Howe
发明人： Duc Ho , Gary L. Howe
IPC分类号： G11C700
CPC分类号： G11C7/1069 , G11C7/1051 , G11C11/4093 , G11C2207/105 , G11C2207/2254
摘要： An improved predriver circuit for an output buffer is provided that can enable the output buffer to operate well within maximum and minimum IOL current specifications at lower internally regulated voltages. The predriver circuit comprises a limiter device configured to limit or otherwise regulate the maximum gate voltage provided to the gate of the pull-down transistor device. As a result, the pull-down transistor device can be sized optimally to provide additional margin to exceed the minimum IOL specification, while also improving the margin under the maximum IOL specification. The device is configured to limit the maximum gate voltage of the output pull-down transistor device to less than the maximum external power supply voltage.
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