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公开(公告)号：US20170179829A1
公开(公告)日：2017-06-22
申请号：US14975349
申请日：2015-12-18
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Ramanujam Ramabhadran , Jeffrey Joseph Nasadoski , Yehuda Daniel Levy , Shimon Khananshvili , Pradeep Vijayan , Bruce Richard Roberts
CPC classification number: H02M3/1582 , H02M1/12 , H02M1/4208 , H02M1/4225 , H05B33/0815 , Y02B70/126
Abstract: An electronic device includes a controller configured to regulate one or more voltages or currents of a power converter. The controller is configured to receive an input voltage of the power converter, determine whether the power converter is operating in a first mode of operation or a second mode of operation based at least in part on the input voltage, generate a multiplier reference signal for the power converter based on whether the power converter is operating in the first mode of operation or the second mode of operation, and adjust an input current of the power converter based at least in part on the multiplier reference signal. Adjusting the input current includes correcting the input current to be substantially identical in form to the input voltage.
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公开(公告)号：US20170085186A1
公开(公告)日：2017-03-23
申请号：US14856657
申请日：2015-09-17
Applicant: General Electric Company
Inventor： Ramanujam Ramabhadran , Han Peng , Yehuda Daniel Levy , John Stanley Glaser
CPC classification number: H02M3/33546 , H02M2001/0058 , H05B33/0815 , H05B37/02 , Y02B70/1491
Abstract: A universal power adapter includes a power converter configured to generate an output power based on a switching frequency of the power converter. The universal power adapter also includes a frequency controller operatively coupled to the power converter and configured to control the switching frequency of the power converter. The universal power adapter further includes a switch capacitor circuit having a plurality of capacitive elements, operatively coupled to the power converter. The switch capacitor circuit is configured to switch between the plurality of capacitive elements. The universal power adapter also includes a capacitance controller operatively coupled to the switch capacitor circuit and configured to control the switch capacitor circuit to control switching between the plurality of capacitive elements to maintain a control parameter within a threshold range of.
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公开(公告)号：US09537413B2
公开(公告)日：2017-01-03
申请号：US14506761
申请日：2014-10-06
Applicant: General Electric Company
Inventor： John Stanley Glaser , Ramanujam Ramabhadran
IPC: H01L41/04 , H02M3/335 , H02N2/00 , H01L41/107 , H02M1/00
CPC classification number: H02M3/33584 , H01L41/042 , H01L41/107 , H02M2001/0077 , H02N2/0075 , Y10T29/42 , Y10T307/549
Abstract: A driver system comprises a direct current (DC) voltage source and a first bi-directional DC-to-DC converter having a primary side coupled to the DC voltage source and a secondary side and configured to convert a first voltage on the primary side to a second voltage on the secondary. The driver system also comprises a second bi-directional DC-to-DC converter having a primary side coupled to the DC voltage source and a secondary side coupled to the secondary side of the first bi-directional DC-to-DC converter and configured to convert the first voltage on the primary side to a third voltage on the secondary. The first and second bi-directional DC-to-DC converters are capable of boosting the first voltage, and the second control signal is a complement of the first control signal. A voltage difference between the second and third voltages comprises an output voltage that comprises an amplification of the first control signal.
Abstract translation: 驱动器系统包括直流（DC）电压源和第一双向DC-DC转换器，其具有耦合到DC电压源的初级侧和次级侧，并且被配置为将初级侧的第一电压转换为 二次电压为第二电压。 驱动器系统还包括第二双向DC-DC转换器，其具有耦合到DC电压源的初级侧和耦合到第一双向DC-DC转换器的次级侧的次级侧，并且被配置为 将初级侧的第一电压转换为次级的第三电压。 第一和第二双向DC-DC转换器能够提升第一电压，第二控制信号是第一控制信号的补码。 第二和第三电压之间的电压差包括包括第一控制信号的放大的输出电压。
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公开(公告)号：US09537080B2
公开(公告)日：2017-01-03
申请号：US14586550
申请日：2014-12-30
Applicant: General Electric Company
Inventor： Ramanujam Ramabhadran , John Stanley Glaser
CPC classification number: H01L41/042 , H01L41/25 , H02M7/53803 , H02M7/797 , H02M2001/0019 , Y10T29/42
Abstract: A system for driving a piezoelectric load includes a direct current (DC) voltage source and a bi-directional DC-to-DC converter having a primary side coupled to the DC voltage source and a secondary side and comprising a control input configured to receive a first control signal configured to control conversion of a first voltage on the primary side of the bi-directional DC-to-DC converter to a second voltage on the secondary side of the bi-directional DC-to-DC converter. The driver system also includes a capacitor coupled to the secondary side of the bi-directional DC-to-DC converter and configured to remove a DC offset of the second voltage and includes a reactive load having a first terminal coupled to the capacitor and a second terminal coupled to the secondary side of the bi-directional DC-to-DC converter.
Abstract translation: 用于驱动压电负载的系统包括直流（DC）电压源和双向DC-DC转换器，其具有耦合到DC电压源的初级侧和次级侧，并且包括被配置为接收 第一控制信号被配置为控制双向DC-DC转换器的初级侧的第一电压的转换为双向DC-DC转换器的次级侧上的第二电压。 驱动器系统还包括耦合到双向DC-DC转换器的次级侧的电容器，其被配置为去除第二电压的DC偏移，并且包括具有耦合到电容器的第一端子的无功负载和第二 端子耦合到双向DC-DC转换器的次级侧。
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公开(公告)号：US20150214833A1
公开(公告)日：2015-07-30
申请号：US14164416
申请日：2014-01-27
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Ramanujam Ramabhadran , Gang Yao , Bruce Richard Roberts , Jeffrey Joseph Nasadoski
CPC classification number: H02M1/42 , H02M1/4225 , H02M1/44 , H02M3/04 , H05B33/0809 , H05B33/0815 , H05B33/0851 , Y02B20/347 , Y02B70/126
Abstract: A power factor controller (PFC) for an electrical load such as LED lighting includes a power factor correcting converter for generating a sinusoidal input current. The PFC further includes a programmable controller for estimating a phase shifted multiplier. A current regulator generates a desired PFC current in response to an input voltage, an output load and the phase shifted and subsequently blanked multiplier. The electrical load operates in response to the sinusoidal input current based at least partially on the desired PFC current.
Abstract translation: 用于诸如LED照明的电负载的功率因数控制器（PFC）包括用于产生正弦输入电流的功率因数校正转换器。 PFC还包括用于估计相移乘法器的可编程控制器。 电流调节器响应于输入电压，输出负载以及相移和随后的空白乘数产生期望的PFC电流。 至少部分地基于期望的PFC电流，电负载响应于正弦输入电流而工作。
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Patent Agency Ranking
公开(公告)号：US11804771B2
公开(公告)日：2023-10-31
申请号：US17439157
申请日：2019-03-15
Applicant: General Electric Company
Inventor： Zheyu Zhang , Ramanujam Ramabhadran , Douglas Carl Hofer , Ahmed Elasser
CPC classification number: H02M1/10 , H02J3/007 , H02J3/02 , H02J3/381 , H02M3/33569 , H02M7/5387 , H02M7/797 , H02J2300/24 , H02J2300/28
Abstract: A customizable power conversion system (1000) is configured to operate with multiple alternating current (AC) and direct current (DC) power sources (1001,1003) and supplies multiple AC and DC loads (1018,1020,1022,1024). The customizable power conversion system is also configured to be assembled from a plurality of customizable power converters (1004,1006,1008,1010,1012), each of which is configured to function as a building block of the customizable power conversion system. More particularly, each customizable power converter may be configured as any DC/DC, DC/AC, AC/DC, or AC/AC converter, such as any of i) an inverter, ii) a DC/DC converter for use with a photovoltaic (PV) array (or string of PV arrays), and iii) a DC/DC converter for use with an energy storage element (e.g., a battery or battery string).
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公开(公告)号：US11381236B2
公开(公告)日：2022-07-05
申请号：US17148340
申请日：2021-01-13
Applicant: General Electric Company
Inventor： Ramanujam Ramabhadran , Krishna Mainali , Kum-Kang Huh , Maja Harfman-Todorovic , Robert James Thomas , Cong Li
IPC: H03K3/00 , H03K17/16 , H02M1/08 , H03K17/042 , H02M1/00
Abstract: Aspects of the present disclosure are directed toward designs and methods of improving driving of switching devices. One proposed solution to improving driving of switching devices is an auxiliary control circuit that selectively guides the switching device through at least one switching region, permitting an improved operation of the switching device.
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公开(公告)号：US11196278B2
公开(公告)日：2021-12-07
申请号：US16614074
申请日：2018-05-30
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Mohammed Agamy , Ramanujam Ramabhadran , Kenneth McClellan Rush , Luca Tonini , Ahmed Elasser , Herman Lucas Norbert Wiegman
Abstract: Controlling an energy storage system includes providing one or more constraints to an optimization problem algorithm, determining by the optimization problem algorithm a DC bus voltage value that results in an minimum total power dissipation for the plurality of power converters, calculating a respective control variable for each of the respective plurality of power converters based on the determined DC bus voltage value, and generating control processor executable instructions to implement control of each of the plurality of power converters to achieve the calculated respective control variable. A system for implementing the method and a non-transitory computer-readable medium are also disclosed.
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公开(公告)号：US20210135667A1
公开(公告)日：2021-05-06
申请号：US17148340
申请日：2021-01-13
Applicant: General Electric Company
Inventor： Ramanujam Ramabhadran , Krishna Mainali , Kum-Kang Huh , Maja Harfman-Todorovic , Robert James Thomas , Cong Li
IPC: H03K17/16 , H02M1/08 , H03K17/042
Abstract: Aspects of the present disclosure are directed toward designs and methods of improving driving of switching devices. One proposed solution to improving driving of switching devices is an auxiliary control circuit that selectively guides the switching device through at least one switching region, permitting an improved operation of the switching device.
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公开(公告)号：US10924106B2
公开(公告)日：2021-02-16
申请号：US16238348
申请日：2019-01-02
Applicant: General Electric Company
Inventor： Ramanujam Ramabhadran , Krishna Mainali , Kum-Kang Huh , Maja Harfman-Todorovic , Robert James Thomas , Cong Li
IPC: H03K3/00 , H03K17/16 , H02M1/08 , H03K17/042 , H02M1/00
Abstract: Aspects of the present disclosure are directed toward designs and methods of improving driving of switching devices. One proposed solution to improving driving of switching devices is an auxiliary control circuit that selectively guides the switching device through at least one switching region, permitting an improved operation of the switching device.
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