公开(公告)号：US12132387B2

公开(公告)日：2024-10-29

申请号：US17629066

申请日：2020-07-22

申请人： Brek Electronics Inc. ,  The Regents of the University of Colorado, a body Corporate

发明人： Robert Erickson ,  Aaron Rogers ,  Roger Bell

IPC分类号： H02M7/48 ,  H02M1/00 ,  H02M7/5387

CPC分类号： H02M1/0043 ,  H02M1/0058 ,  H02M1/0085 ,  H02M1/009 ,  H02M7/4807 ,  H02M7/53871

摘要： Inverters that interface dc and ac power sources and loads are provided. An example application is solar power systems, in which a dc source of power is an array of solar panels; the inverter converts the dc power supplied by these panels to ac power that is fed into the utility grid. Another example is battery energy storage; the inverter changes the dc power of the batteries into ac power that is fed into the grid, and also can convert (rectify) ac power from the grid for charging the batteries. In one embodiment, for example, an inverter comprises slow switches that generate a three-level ac voltage, followed by a plurality of fast-switching half-bridges that introduce high-frequency pulse-width modulation into a plurality of ac output voltages.

公开(公告)号：US20160302847A1

公开(公告)日：2016-10-20

申请号：US15192870

申请日：2016-06-24

申请人： The Regents of the University of Colorado, a body corporate

发明人： Robert Erickson ,  Daniel Friedrichs ,  James Gilbert

IPC分类号： A61B18/12

CPC分类号： A61B18/1206 ,  A61B2018/00607 ,  A61B2018/00648 ,  A61B2018/00678 ,  A61B2018/0069 ,  A61B2018/0072 ,  A61B2018/00726 ,  A61B2018/00767 ,  A61B2018/00779 ,  A61B2018/00827 ,  A61B2018/00875 ,  A61B2018/00892 ,  A61B2018/1266 ,  A61B2018/1286 ,  H02M7/53871 ,  H02M2001/007

摘要： An electrosurgical generator may reduce unintended tissue damage by improving regulation of output power. The electrosurgical generator may control the power during a cycle, and react to a change in power if arcing occurs. Voltage sources, especially, demonstrate the tendency to have large, uncontrolled power excursions during normal electrosurgical use. The magnitude of the power excursions may be dependent on various factors. An exemplary electrosurgical generator control scheme reduces or minimizes the thermal spread by accurately supplying the specified power within a few cycles. Additionally, fast and accurate regulation provided by the constant voltage mode reduces or minimizes unintentional tissue charring. Thus, reduced thermal spread and charring should result in better surgical outcomes by reducing scarring and decreasing healing times. An electrosurgical generator controller may be configured to control both a DC-DC buck converter and a DC-AC boost inverter based in part on electrical parameters of the electrosurgical generator.

摘要翻译： 电外科发生器可以通过改善输出功率的调节来减少意外的组织损伤。 电外科发生器可以在一个周期期间控制功率，并且如果发生电弧，则对功率变化做出反应。 电压源尤其表现出在正常电外科使用过程中具有大的不受控制的功率偏移的倾向。 功率偏移的大小可能取决于各种因素。 示例性的电外科发生器控制方案通过在几个周期内精确地提供指定的功率来减小或最小化热扩散。 另外，通过恒压模式提供的快速和准确的调节减少或最小化无意的组织炭化。 因此，通过减少瘢痕形成和减少愈合时间，减少热扩散和炭化应该导致更好的手术结果。 电外科发生器控制器可以被配置为部分地基于电外科发生器的电参数来控制DC-DC降压转换器和DC-AC升压逆变器。