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公开(公告)号：US11909257B2
公开(公告)日：2024-02-20
申请号：US17536915
申请日：2021-11-29
发明人： Qinghong Yu , Adam Daniel Sanner , Jing Huang , Kaushal J. Patel
摘要： Uninterruptible power supplies, power modules, and non-transitory computer readable mediums storing instructions for operating such power modules, the power modules comprising an input configured to receive AC power from an AC power source, an output configured to provide AC output power to a load, and a plurality of power modules coupled in parallel between the input and the output, each power module of the plurality of power modules configured to provide at least a portion of the AC output power to the output. Each power module of the plurality of power modules comprises a current compensator stage configured to generate a current error signal based on output current of a corresponding power module and a gain adjustment stage configured to adjust the current error signal based on a measurement of the output current and a desired output current of the corresponding power module.
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公开(公告)号：US20170366029A1
公开(公告)日：2017-12-21
申请号：US15182888
申请日：2016-06-15
发明人： Brian McKenna , Kaushal J. Patel , Kenneth J. Steeves , Marcel B. Grenier , Qinghong Yu , Jeffrey M. August , James Edward Briggs , Steven Allen Diggins , Jeffrey Steven Young , Devin Patrick Auclair , James Walter Frey
CPC分类号： H02J7/0068 , G08G1/095 , H02J5/00 , H02J9/065
摘要： According to at least one aspect, embodiments herein provide a traffic light power management system comprising a power source, a first output, a service bypass unit and a power management unit. The service bypass unit is configured to receive AC power from the power source, convert the AC power to a first DC power in a first mode of operation, provide the first DC power to the first output in the first mode of operation, and provide the AC power to a power management unit in a second mode of operation. The power management unit is coupled to the service bypass unit, and is configured to receive the AC power from the service bypass unit in the second mode of operation, convert the AC power to a second DC power in the second mode of operation, and provide the DC power to the first output in the second mode of operation.
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公开(公告)号：US20240063722A1
公开(公告)日：2024-02-22
申请号：US18226316
申请日：2023-07-26
发明人： Qinghong Yu , Jing Huang
CPC分类号： H02M3/33576 , H02J9/062
摘要： Examples of the disclosure include a power system comprising a power-system output configured to be coupled to, and provide an output AC waveform to, one or more loads, a positive DC bus, a negative DC bus, an inverter coupled to the positive DC bus and the negative DC bus, the inverter including an inverter output coupled to the power-system output, and a DC/DC converter coupled between the inverter output and at least one of the positive DC bus or the negative DC bus.
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公开(公告)号：US20230170733A1
公开(公告)日：2023-06-01
申请号：US17536915
申请日：2021-11-29
发明人： Qinghong Yu , Adam Daniel Sanner , Jing Huang , Kaushal J. Patel
摘要： Uninterruptible power supplies, power modules, and non-transitory computer readable mediums storing instructions for operating such power modules, the power modules comprising an input configured to receive AC power from an AC power source, an output configured to provide AC output power to a load, and a plurality of power modules coupled in parallel between the input and the output, each power module of the plurality of power modules configured to provide at least a portion of the AC output power to the output. Each power module of the plurality of power modules comprises a current compensator stage configured to generate a current error signal based on output current of a corresponding power module and a gain adjustment stage configured to adjust the current error signal based on a measurement of the output current and a desired output current of the corresponding power module.
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公开(公告)号：US10547191B2
公开(公告)日：2020-01-28
申请号：US15182888
申请日：2016-06-15
发明人： Brian McKenna , Kaushal J. Patel , Kenneth J. Steeves , Marcel B. Grenier , Qinghong Yu , Jeffrey M. August , James Edward Briggs , Steven Allen Diggins , Jeffrey Steven Young , Devin Patrick Auclair , James Walter Frey
IPC分类号： H02J7/00
摘要： According to at least one aspect, embodiments herein provide a traffic light power management system comprising a power source, a first output, a service bypass unit and a power management unit. The service bypass unit is configured to receive AC power from the power source, convert the AC power to a first DC power in a first mode of operation, provide the first DC power to the first output in the first mode of operation, and provide the AC power to a power management unit in a second mode of operation. The power management unit is coupled to the service bypass unit, and is configured to receive the AC power from the service bypass unit in the second mode of operation, convert the AC power to a second DC power in the second mode of operation, and provide the DC power to the first output in the second mode of operation.
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公开(公告)号：US10243376B2
公开(公告)日：2019-03-26
申请号：US15182877
申请日：2016-06-15
发明人： Qinghong Yu
IPC分类号： H02J7/00
摘要： According to at least one aspect, embodiments herein provide a method for operating a battery charging system, the method comprising receiving, by a first rectifier, a first AC voltage, receiving, by a second rectifier, a second AC voltage, converting, by the first rectifier, the first AC voltage to a first DC voltage, converting, by the second rectifier, the second AC voltage to a second DC voltage, biasing, by the second rectifier, the first rectifier with the second DC voltage, biasing, by the second rectifier, a battery charger with the second DC voltage, providing, by the first rectifier, a biased voltage to the battery charger, and providing, by the battery charger, a second power to a battery.
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公开(公告)号：US20170018959A1
公开(公告)日：2017-01-19
申请号：US15300919
申请日：2014-04-04
CPC分类号： H02J9/061 , H01H50/58 , H01H51/27 , H01H2235/01
摘要： According to one aspect, an uninterruptable power supply (UPS) is provided. The UPS includes a first input constructed to receive input power from a first power source, a second input constructed to receive input power from a second power source, an output constructed to provide output alternating current (AC) power derived from at least one of the first power source and the second power source, a bypass switch having an on state and an off state coupled between the first input and the output, an inverter coupled between the second input and the output and constructed to generate the output AC power. The UPS being constructed to quickly transition from a first power delivery mode that provides output power derived from the first power source to a second power delivery mode that provides output power derived from the second power source.
摘要翻译： 根据一个方面，提供不间断电源（UPS）。 UPS包括构造成从第一电源接收输入功率的第一输入，被构造为从第二电源接收输入功率的第二输入，被构造成提供从至少一个 第一电源和第二电源，具有耦合在第一输入和输出之间的导通状态和截止状态的旁路开关，耦合在第二输入和输出之间的逆变器，用于产生输出AC电力。 UPS被构造成从提供从第一电源获得的输出功率的第一电力输送模式快速转换到提供从第二电源获得的输出功率的第二电力输送模式。
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公开(公告)号：US11824466B2
公开(公告)日：2023-11-21
申请号：US17126324
申请日：2020-12-18
CPC分类号： H02M7/797 , H02M1/32 , H02M1/4208
摘要： A power supply including an input configured to receive input power, an output configured to provide output power to a load, at least one relay, a crowbar circuit configured to selectively divert the input power away from the load, and a controller configured to detect a high-voltage condition at the input, activate, in response to detecting the high-voltage condition at the input, the crowbar circuit to divert the input power away from the load, output, in response to detecting the high-voltage condition at the input, a signal to operate the at least one relay to transition from a first state to a second state, and deactivate the crowbar circuit in response to a determination that the at least one relay has transitioned to the second state.
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公开(公告)号：US20220200483A1
公开(公告)日：2022-06-23
申请号：US17126324
申请日：2020-12-18
摘要： A power supply including an input configured to receive input power, an output configured to provide output power to a load, at least one relay, a crowbar circuit configured to selectively divert the input power away from the load, and a controller configured to detect a high-voltage condition at the input, activate, in response to detecting the high-voltage condition at the input, the crowbar circuit to divert the input power away from the load, output, in response to detecting the high-voltage condition at the input, a signal to operate the at least one relay to transition from a first state to a second state, and deactivate the crowbar circuit in response to a determination that the at least one relay has transitioned to the second state.
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公开(公告)号：US11157430B2
公开(公告)日：2021-10-26
申请号：US16749202
申请日：2020-01-22
发明人： Qinghong Yu
IPC分类号： G06F13/374 , H02J3/00 , H02M7/00
摘要： According to one aspect, embodiments of the invention provide a DC-DC power converter system comprising a positive bus interface, a negative bus interface, a positive battery interface, a negative battery interface, a first converter segment coupled to the positive bus interface and the negative bus interface, a transformer coupled to the first converter segment, a second converter segment coupled to the transformer, the positive battery interface, and the negative battery interface, a bus balancer circuit coupled to the transformer, and a controller configured to identify an imbalance between a positive voltage level on a positive DC bus and a negative voltage level on a negative DC bus, and in response to identifying the imbalance, operating the bus balancer circuit to convert the first converter segment, the transformer, and the second converter segment into an inverted buck-boost converter configured to transfer energy between the positive bus interface and the negative bus interface.
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