公开(公告)号：US08300438B1

公开(公告)日：2012-10-30

申请号：US12618740

申请日：2009-11-15

Applicant: Edward Herbert

Inventor： Edward Herbert

IPC: H02M7/00

CPC classification number: H02M1/4216 ,  H02M3/33592 ,  H02M3/3374 ,  Y02B70/126 ,  Y02B70/1475 ,  Y02P80/112

Abstract: A 3-phase pfc 100% duty-ratio buck converter and a 3-phase 0% duty-ratio boost converter can be used in parallel with their outputs in series to greatly reduce the ripple voltage in the output. They can also be used in series with their outputs in parallel to greatly reduce the ripple current in the output. A 3-phase 0% duty-ratio boost converter having isolated primary circuits for each phase is used when the inputs are in series.

Abstract translation: 三相pfc 100％占空比降压转换器和三相0％占空比升压转换器可以与其输出串联使用，以大大降低输出中的纹波电压。 它们也可以并联使用它们的输出，以大大减少输出中的纹波电流。 当输入串联时，使用具有每相的隔离初级电路的3相0％占空比升压转换器。

公开(公告)号：US07394135B1

公开(公告)日：2008-07-01

申请号：US10905668

申请日：2005-01-14

Applicant: Edward Herbert

Inventor： Edward Herbert

IPC: H01L29/76 ,  H01L29/94 ,  H01L31/062 ,  H01L31/113 ,  H01L31/119

CPC classification number: H01L29/7813 ,  H01L29/0856 ,  H01L29/41741 ,  H01L29/7803 ,  H01L29/7831 ,  H02M3/33576

Abstract: A dual source MOSFET comprises a large number of cells diffused into a substrate. The cells are divided into two regions with separate sources and gates but having a common drain connection, the substrate. It is preferred that the source regions be highly interdigitated so that the current at the silicon to metal interface is sufficiently diffuse so that the source from which it originated is indistinguishable, and in switching from one source to the other causes no significant difference in the current density or distribution at the drain connection, provided that the sum of the source currents is constant. The same construction provides a superior ac switch, though no drain connection is needed.

Abstract translation: 双源MOSFET包括扩散到衬底中的大量单元。 电池被分成具有单独的源极和栅极的两个区域，但是具有共同的漏极连接，衬底。 优选地，源极区域被高度交错，使得硅到金属界面处的电流充分地扩散，使得源起始的源不可区分，并且在从一个源切换到另一个源时，电流没有显着差异 密度或分布在漏极连接处，前提是源电流之和是恒定的。 相同的结构提供了卓越的交流开关，尽管不需要排水连接。

公开(公告)号：US07362206B1

公开(公告)日：2008-04-22

申请号：US11423957

申请日：2006-06-14

Applicant: Edward Herbert

Inventor： Edward Herbert

IPC: H01F27/28

CPC classification number: H01F38/00 ,  H01F29/02 ,  H01F2038/006

Abstract: A variable transformer has an effective turns ratio that can be varied by electronic switching. By varying the effective turns ratio, the output voltage can be controlled precisely for a varying input voltage and load regulation. The variable transformer is a modular transformer in which one or more of the modules can be effectively removed from the variable transformer by turning on an ac switch so as to short-circuit the secondary winding of the module. When the ac switch is on, the rectifiers of the module must be turned off, if they are synchronous rectifiers. If they are diodes, they will be off by being back-biased when the ac switch is on. Improved transformer modules are shown having reduced leakage inductance.

Abstract translation: 可变变压器具有可通过电子开关变化的有效匝数比。 通过改变有效匝数比，可以精确控制输出电压，以适应不同的输入电压和负载调节。 可变变压器是一种模块式变压器，其中一个或多个模块可以通过开启交流开关从变压器中有效地移除，从而使模块的次级绕组短路。 交流开关接通时，模块的整流器必须关闭，如果它们是同步整流器。 如果它们是二极管，则当交流开关打开时，它们将被反向偏置。 改进的变压器模块被示出具有减小的漏电感。

公开(公告)号：US07136285B1

公开(公告)日：2006-11-14

申请号：US10710794

申请日：2004-08-03

Applicant: Edward Herbert

Inventor： Edward Herbert

IPC: H05K7/20

CPC classification number: H01L23/467 ,  F04D29/281 ,  F04D29/325 ,  F04D29/582 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A wave-fan comprises a wavy surface, generally sinusoidal in the direction of rotation, which rotates in close proximity to the fins of a heat sink. The wave-plane fan is suitable for use with a flat heat sink, and a wave-ring fan is suitable for use with a cylindrical heat sink. There are no airfoils as in a prior art fan. Instead, the ridges of the wave-fan agitate the air between the fins of the heat sink as each ridge passes, breaking down the boundary layer and effecting good heat flow into the air. In some embodiments of the wave-fan, the outer surfaces are smooth, so it is not a hazard to intruding fingers, so in many applications it may be used without a guard or enclosure. Incidental centrifugal force provides some airflow through the fan to transport the heated air away from the fan. Also, the configuration of the fan tends to keep contamination in the air out of the heat sink fins, so an inlet air filter may not be needed. Because the net airflow through the fan is low, less power is required and it is very quiet.

Abstract translation: 波浪风扇包括沿旋转方向大致正弦的波形表面，其旋转得靠近散热片的翅片。 波形风扇适用于平板散热器，波浪式风扇适用于圆柱形散热器。 在现有技术的风扇中没有翼型。 相反，波浪风扇的脊在每个脊通过时搅动散热片的翅片之间的空气，分解边界层并实现良好的热流入空气。 在波浪风扇的一些实施例中，外表面是光滑的，因此它不会侵入手指，因此在许多应用中，它可以在没有防护件或外壳的情况下使用。 偶然的离心力提供一些通过风扇的气流，以将加热的空气从风扇传送出去。 此外，风扇的构造倾向于将空气中的污染保持在散热片外，因此可能不需要入口空气过滤器。 因为风扇的净气流低，需要较少的功率，而且非常安静。

公开(公告)号：US07023317B1

公开(公告)日：2006-04-04

申请号：US10708846

申请日：2004-03-27

Applicant: Edward Herbert

Inventor： Edward Herbert

IPC: H01F27/30

CPC classification number: H01F30/06 ,  H01F27/306 ,  H01F30/16 ,  H01F2017/067 ,  H01F2038/006

Abstract: The winding of matrix transformers having multiple turn primary windings is made much easier, and the resulting transformer is much more consistent, if a “cellular” insert having a plurality of through holes is placed through each trough hole of the matrix transformer. Preferably, there is one hole in the cellular insert for each wire, though two or more wires can be placed in each hole. In one embodiment, insulating cellular inserts are placed through the entire length of the cellular transformer to guide and locate the primary windings. In another embodiment, each element of the cellular transformer has cellular inserts, and the elements are coupled together. In another embodiment, the cellular insert is a conductor and is part of the secondary circuit.

Abstract translation: 具有多回转初级绕组的矩阵变压器的绕组变得更容易，并且如果具有多个通孔的“蜂窝”插入件通过矩阵变压器的每个槽孔放置，则所得到的变压器更加一致。 优选地，每个电线的蜂窝插入件中有一个孔，尽管每个孔中可以放置两根或更多根线。 在一个实施例中，绝缘蜂窝插入件被放置在整个长度的细胞变压器中以引导和定位初级绕组。 在另一个实施例中，蜂窝式变压器的每个元件具有蜂窝插入件，并且元件耦合在一起。 在另一个实施例中，蜂窝状插件是导体，并且是次级电路的一部分。

公开(公告)号：US06992520B1

公开(公告)日：2006-01-31

申请号：US10707774

申请日：2004-01-12

Applicant: Edward Herbert

Inventor： Edward Herbert

IPC: H03K17/04

CPC classification number: H03K17/04123 ,  H01L29/0696 ,  H01L2224/16225 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2224/49175 ,  H01L2924/00011 ,  H01L2924/00014 ,  H01L2924/12032 ,  H01L2924/13062 ,  H01L2924/13091 ,  H01L2924/3011 ,  H03K17/08142 ,  H01L2924/00 ,  H01L2224/0401

Abstract: Usually, in power converters, the load on a MOSFET is inductive, and the current cannot change rapidly. The drain current is the upper limit of the Miller current, so that if the gate current is larger than the drain current, the gate capacitance will continue to discharge and there can be no Miller shelf. If a parallel capacitor is used with a MOSFET, once the drain voltage starts to rise, the load current divides, placing a new lower limit on the Miller current. To drive a MOSFET with a gate current that exceeds the drain current, the circuit impedances have to be very low, suggesting a new geometry and packaging arrangement for the MOSFET and gate drive. A compatible gate turn of circuit is also disclosed.

Abstract translation: 通常，在电源转换器中，MOSFET上的负载为电感，电流不能快速变化。 漏极电流是米勒电流的上限，因此如果栅极电流大于漏极电流，则栅极电容将继续放电，并且不存在米勒架。 如果并联电容与MOSFET一起使用，一旦漏极电压开始上升，负载电流就会分开，为Miller电流提供新的下限。 为了驱动具有超过漏极电流的栅极电流的MOSFET，电路阻抗必须非常低，这表明MOSFET和栅极驱动器具有新的几何形状和封装布置。 还公开了一种兼容的电路转向门。

公开(公告)号：US06979982B2

公开(公告)日：2005-12-27

申请号：US10709484

申请日：2004-05-08

Applicant: Edward Herbert

Inventor： Edward Herbert

IPC: H02M3/158 ,  G05F1/44

CPC classification number: H02M3/1584

Abstract: In a switched-current power converter, a plurality of constant current sources provide equal currents to a plurality of switch pairs that may direct the several currents either to the return or to the output capacitors and the load. In another embodiment of the invention, internal switches may short circuit the several current sources and a plurality of switches may switch the several currents to the output capacitor and the load when the internal switches are not short circuits. A voltage control circuit is shown in which a resistor ladder network is the references for a number of comparators which directly control the plurality of switches. An alternative voltage control circuit uses two comparators and an up-down counter to control the switches.

Abstract translation: 在开关电流功率转换器中，多个恒流源为多个开关对提供相等的电流，这些开关对可将多个电流引导到返回或输出电容器和负载。 在本发明的另一个实施例中，内部开关可能使几个电流源短路，并且当内部开关不是短路时，多个开关可以将多个电流切换到输出电容器和负载。 示出了电压控制电路，其中电阻梯形网络是用于直接控制多个开关的多个比较器的参考。 一个替代的电压控制电路使用两个比较器和一个升降计数器来控制开关。

公开(公告)号：US6121761A

公开(公告)日：2000-09-19

申请号：US336897

申请日：1999-06-21

Applicant: Edward Herbert

Inventor： Edward Herbert

IPC: G05F1/40 ,  H02M3/335

CPC classification number: H02M3/1582 ,  H02M3/07 ,  H02M2001/007

Abstract: A fast transition power supply comprises three control functions, one to maintain steady state conditions, a voltage transition circuit that rapidly changes the charge on the output capacitor to effect a rapid step change in the output voltage, and a current control circuit that can switch a constant current in a pulse width modulation control from zero (or negative) current to any current less than the maximum rated current with no change of current in the inductors of the circuit. The power supply can thus go from zero volts, no current to full output voltage, full current very quickly, in the order of less than an micro-second. It can also transition from full voltage, full current to zero voltage, zero current just as fast, or transition from one voltage to another.

Abstract translation: 快速转换电源包括三个控制功能，一个用于保持稳态条件，一个电压转换电路，其快速地改变输出电容器上的电荷，以实现输出电压的快速阶梯变化;以及电流控制电路，其可切换 脉冲宽度调制控制中的恒定电流从零（或负）电流到任何小于最大额定电流的电流，电路中电感不变。 因此，电源可以从零伏，无电流到全输出电压，全电流非常快，小于微秒。 它也可以从全电压，全电流转换到零电压，零电流一样快，或从一个电压转换到另一个电压。

公开(公告)号：US5923523A

公开(公告)日：1999-07-13

申请号：US840424

申请日：1997-04-29

Applicant: Edward Herbert

Inventor： Edward Herbert

IPC: H01G4/228 ,  H01G4/232

CPC classification number: H01G4/232 ,  H01G4/228

Abstract: A four terminal capacitor package has portions of the DC current bus and the DC current return bus of a power supply integrated within it, directly bonded to stick capacitor elements, to provide a very low impedance for noise between the DC current and its return. In some of the packages multiple capacitor elements are used to reduce the inductance of the AC shunt path by providing multiple parallel paths. In other embodiments of the invention the arrangement of the stick capacitors in relationship to each other and the DC buses further reduces AC noise by field separation, cancellation or absorption. The heavy buses and terminations also provide very good heat sinking for the stick capacitors, which allows them to carry larger currents.

Abstract translation: 四端子电容器封装具有直流电流总线的一部分和集成在其内的电源的直流电流返回总线，直接结合到电容器元件上，为直流电流和其返回之间的噪声提供非常低的阻抗。 在一些封装中，多个电容器元件用于通过提供多个平行路径来减小AC分流路径的电感。 在本发明的其它实施例中，彼此关系的棒式电容器和DC母线的布置进一步通过场分离，消除或吸收来减少AC噪声。 沉重的总线和终端也为棒式电容器提供了非常好的散热器，从而允许它们承载更大的电流。

公开(公告)号：US5297617A

公开(公告)日：1994-03-29

申请号：US994671

申请日：1992-12-22

Applicant: Edward Herbert

Inventor： Edward Herbert

IPC: F04D27/02 ,  F04D29/54 ,  F04D29/58 ,  F24F1/00 ,  F28F13/12

CPC classification number: F04D29/547 ,  F04D27/009 ,  F04D29/582 ,  F24F1/0007 ,  F24F1/0022

Abstract: Heat transfer from the inside of a fan duct to the air is very good because the air in this region has a high velocity and is turbulent due to the rotation of the fan blades. Devices mounted on the outside of the fan duct can thus be cooled effectively. The inside surface of the duct can be modified to enhance the heat transfer as by grooving it deeply. The fan blade also can be modified to increase the air velocity and the turbulence. External fins can be added to the fan duct, and it can be shrouded so that a portion of the exit air passes through the fins back to the inlet. This decreases the mass of the exit air, for quieter operation. In a multi-stage fan, inlet, outlet and interstage fins can be used to further enhance the heat flow to the air.

Abstract translation: 从风扇管道内部向空气的传热是非常好的，因为该区域中的空气具有高速度并且由于风扇叶片的旋转而是湍流的。 因此可以有效地冷却安装在风扇导管外侧的装置。 可以改变管道的内表面，以便通过深深切槽来增强传热。 风扇叶片也可以修改，以增加风速和湍流。 外部散热片可以被添加到风扇管道中，并且其可以被覆盖，使得一部分出口空气通过散热片返回到入口。 这会降低出口空气的质量，从而使操作更安静。 在多级风扇中，可以使用入口，出口和级间翅片来进一步增强对空气的热流。