公开(公告)号：US20220136813A1

公开(公告)日：2022-05-05

申请号：US17514719

申请日：2021-10-29

申请人： Ryan Parasram

发明人： Ryan Parasram

IPC分类号： F42D1/055 ,  H03K17/72 ,  F42B3/12 ,  E21B43/1185

摘要： The present invention is directed toward an addressable ignition stage which produces an output sufficient to detonate a secondary explosive, generally. The present invention comprises addressability and ignition functions that may be used together or separately to incorporate a high-power resistor with a thermally conductive substrate allowing for operation at high temperatures for ignition. The ignition stage is amendable to high volume production, exhibits a high degree of reliability, robustness and operational dependability for use alone or configurable into existing technology.

公开(公告)号：US20220113345A1

公开(公告)日：2022-04-14

申请号：US17500110

申请日：2021-10-13

申请人： ANDRITZ HYDRO CANADA INC.

发明人： Jean-Francois St-Roch ,  Aurelien Carte ,  Quentin Bricard ,  Handy Fortin Blanchette

IPC分类号： G01R31/26 ,  H03K17/72 ,  G01R19/14

摘要： A system for monitoring polarization and conduction of a thyristor includes a transformer configured to generate a secondary current from a triggering current waveform applied to a gate of the thyristor; a converter configured to convert the secondary current into a monitored voltage; a first hysteresis comparator configured to generate a first voltage pulse based on the monitored voltage when the triggering current waveform includes a first current pulse; a second hysteresis comparator configured to generate one or more second voltage pulses based on the monitored voltage when the triggering current waveform includes one or more second current pulses; a monitoring unit configured to receive the first and the one or more second voltage pulses, and determine whether the triggering current waveform satisfies pre-defined characteristics, and to determine whether a current flowing between the anode and cathode of the thyristor satisfies additional pre-defined characteristics.

公开(公告)号：US11303110B1

公开(公告)日：2022-04-12

申请号：US16922882

申请日：2020-07-07

申请人： Smart Wires Inc.

发明人： Amrit Iyer ,  Govind Chavan ,  Liyu Cao ,  Brock Petersen ,  Haroon Inam ,  Antonio Ginart

IPC分类号： H02H7/26 ,  H02H1/00 ,  H03K19/0175 ,  H03K17/72

摘要： A system and method using thyristors to protect a series-connected Flexible AC Transmission Systems (FACTS) device from surge currents are disclosed. According to some embodiments, the system includes a thyristor connected in shunt with the FACTS device to be protected. The system further includes control circuitry coupled to the thyristor to drive a gate of the thyristor with a direct current (DC) signal and turn on the thyristor in a time span on order of microseconds. The system and method can be used to protect any series-connected FACTS device that is in danger of being exposed to surge current such as a reclose after a deadline.

公开(公告)号：US11196338B2

公开(公告)日：2021-12-07

申请号：US16958959

申请日：2018-12-29

申请人： North Carolina State University

发明人： Richard B. Beddingfield ,  Subhashish Bhattacharya

IPC分类号： H03K17/72 ,  H02M1/36 ,  H02M1/32 ,  H02M7/155 ,  H03K17/0812 ,  H03K17/16

摘要： Various examples are provided related to semiconductor topologies and devices that can be used for soft starting and active fault protection of power converters. In one example, an active switch device includes an active switch having a gating control input; and a thyristor having a gating control input. The thyristor is coupled in parallel with the active switch. The active switch can be an IGBT, MOSFET, or other appropriate device. In another example, a power converter can include the active switch devices and switching control circuitry coupled to gating control inputs of the active switch devices.

公开(公告)号：US20190245537A1

公开(公告)日：2019-08-08

申请号：US16385020

申请日：2019-04-16

申请人： Cree, Inc.

发明人： Yuequan Hu ,  Amruteshwar Hiremath ,  Kory A. Liszt

IPC分类号： H03K17/68 ,  H03K17/72

CPC分类号： H03K17/68 ,  H03K17/72 ,  H03K2217/0009 ,  H03K2217/0054

摘要： A high reliability AC load switching circuit is disclosed. In some embodiments, the AC load switching circuit includes a high-speed switch connected between the load and the voltage source, a cutoff switch connected between the load and the voltage source in parallel with the high-speed switch, and a level detector connected to the voltage source and to a control input of the high-speed switch. The high-speed switch may be a solid-state switch, for example, a TRIAC or a bidirectional switch, and the cutoff switch may be an electromechanical switch, for example, a relay. In some embodiments a snubber is connected in parallel with a solid-state switch. In some embodiments a microcontroller is connected to an electromechanical switch and the level detector. In some embodiments, both a first cutoff switch and a second cutoff switch are used.

公开(公告)号：US10320382B2

公开(公告)日：2019-06-11

申请号：US15545122

申请日：2017-04-13

申请人： Voyomotive, LLC ,  Robert Vogt, IV ,  Adam Sloan

发明人： Robert Vogt, IV ,  Adam Sloan

IPC分类号： H03K17/56 ,  H03K17/72 ,  H03K17/00 ,  H04L29/08 ,  H04B3/54 ,  H01H36/00

摘要： A replacement smart relay having a relay, controlled by a microcontroller operably connected through a power line communication line that receives instructions from a relay controller, the relay has a simulated resistor representative of a reference resistance, the instructions pass through commands that are sent to the relay control terminals to the relay switched terminals to allow the relay to function the same as the relay it is replacing in the existing application, the instructions from the relay controller are capable of opening or closing the relay switched terminals to override a command on the relay control terminals from the existing application based on a set of vehicle conditions communicated to the relay controller, and instructions from the relay controller allow the smart relay to act deterministically when the smart relay is not actively communicating with the relay controller. A feedback circuit may be used to enhance functionality.

公开(公告)号：US20190131791A1

公开(公告)日：2019-05-02

申请号：US16176528

申请日：2018-10-31

申请人： Hatch Ltd.

发明人： Michael Morgan CAMPBELL ,  Yan ELKSNIS ,  Dong SHEN

IPC分类号： H02J3/18 ,  H03K17/72 ,  H05B7/18

摘要： A configuration of switches added to a line control circuit allows for switching back and forth between a configuration featuring a series-connected thyristor switch and reactor and a configuration featuring a parallel-connected thyristor switch and reactor. Connecting the reactor in series with the thyristor switch allows a controlled high-impedance circuit configuration that is particularly well adapted for cold furnace start-ups and furnace idling. In this manner, there is reduced need for such equipment as extra startup transformers, alternate low-voltage power supply configurations and temporary specialty electrical apparatus for cold furnace start-ups.

公开(公告)号：US20170317526A1

公开(公告)日：2017-11-02

申请号：US15234242

申请日：2016-08-11

申请人： HON HAI PRECISION INDUSTRY CO., LTD.

发明人： CHIA-PENG WANG

IPC分类号： H02J9/06 ,  H03K17/72

CPC分类号： H02J9/061 ,  H01H2071/124 ,  H02J9/06 ,  H03K17/72 ,  H03K17/725 ,  H03K2017/515

摘要： A power switching device includes a primary power source, a backup power source, and a power switching circuit, and the power switching circuit can switch rapidly between the two or more power sources. The power switching circuit includes a first switching module, a second switching module, and a control module. The first switching module includes first through fourth relays, and first through fourth driving units. The first switching module also includes a first bidirectional thyristor and a second bidirectional thyristor. A power switching circuit is also provided.

公开(公告)号：US09024678B2

公开(公告)日：2015-05-05

申请号：US13899626

申请日：2013-05-22

申请人： Infineon Technologies AG

发明人： Daniele Vacca Cavalotto ,  Enrico Orietti

IPC分类号： H03K17/72 ,  H03K17/14

CPC分类号： H03K17/145 ,  G01R19/0092 ,  H02M2001/0009 ,  H03K2217/0027

摘要： A circuit arrangement including a first transistor, a second transistor and a third transistor. The first transistor and the second transistor are configured so that the current flowing through the first transistor is proportional to the current flowing through the second transistor and the third transistor. The first transistor, the second transistor and the third transistor are configured to operate in an ohmic mode. The second transistor and the third transistor are coupled in series to each other. The first transistor, the second transistor and the third transistor match each other in at least one characteristic.

摘要翻译： 一种包括第一晶体管，第二晶体管和第三晶体管的电路装置。 第一晶体管和第二晶体管被配置为使流过第一晶体管的电流与流过第二晶体管和第三晶体管的电流成比例。 第一晶体管，第二晶体管和第三晶体管被配置为以欧姆模式工作。 第二晶体管和第三晶体管彼此串联耦合。 第一晶体管，第二晶体管和第三晶体管在至少一个特性中彼此匹配。

公开(公告)号：US20140375377A1

公开(公告)日：2014-12-25

申请号：US14279497

申请日：2014-05-16

申请人： NXP B.V.

发明人： Rob Van Dalen ,  Maarten Jacobus Swanenberg ,  Inesz Emmerik-Weijland

IPC分类号： H01L29/74 ,  H03K17/72 ,  H01L27/15

CPC分类号： H01L29/7408 ,  H01L27/153 ,  H01L29/0839 ,  H01L29/7412 ,  H01L29/7428 ,  H03K17/72

摘要： A thyristor is disclosed comprising: a first region of a first conductivity type; a second region of a second conductivity type and adjoining the first region; a third region of the first conductivity type and adjoining the second region; a fourth region of the second conductivity type and comprising a first segment and a second segment separate from the first segment, the first segment and second segment each adjoining the third region; a first contact adjoining the first region; a second contact adjoining the first segment; and a trigger contact adjoining the second segment and separate from the second contact.Methods of triggering such a thyristor are also disclosed, as are circuits utilising one or more such thyristors.

摘要翻译： 公开了一种晶闸管，包括：第一导电类型的第一区域; 第二导电类型的第二区域并与第一区域邻接; 所述第一导电类型的第三区域和所述第二区域相邻; 所述第二导电类型的第四区域包括与所述第一段分离的第一段和第二段，所述第一段和第二段各自邻接所述第三区; 邻接第一区域的第一接触; 邻接所述第一段的第二接触; 以及与第二段相邻并且与第二接触分离的触发器触点。 还公开了触发这种晶闸管的方法，以及利用一个或多个这种晶闸管的电路。