Patents by Inventor Xue Jian Chen
Xue Jian Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240048072Abstract: Disclosed is a novel and innovative class of buck-boost bidirectional inverters achieve ultra high efficiency in applications requiring converting of one or more low and variable DC voltages of one or more power sources (which may include a battery, a low-voltage DC source, or a set of PV solar panels) to an AC voltage (e.g., connected to a grid) through a single-stage power conversion with step modulation.Type: ApplicationFiled: September 15, 2021Publication date: February 8, 2024Inventors: Xue Jian CHEN, Jin Chuan HUANG
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Publication number: 20220190742Abstract: A new class of DC-AC inverter comprises a buck or two buck converters and two or four low frequency switches, and it achieves ultra-high efficiency, reactive power flow capability, small size and low cost in grid-connected applications.Type: ApplicationFiled: October 22, 2021Publication date: June 16, 2022Inventor: Xue Jian Chen
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Patent number: 11159097Abstract: A new class of DC-AC inverter consists of a buck or two buck converters and two or four low frequency switches, and it achieves ultra-high efficiency, reactive power flow capability, small size and low cost in grid-connected applications.Type: GrantFiled: November 8, 2019Date of Patent: October 26, 2021Assignee: Redx Technology Australia Pty LtdInventor: Xue Jian Chen
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Publication number: 20200252003Abstract: A new class of DC-AC inverter consists of a buck or two buck converters and two or four low frequency switches, and it achieves ultra-high efficiency, reactive power flow capability, small size and low cost in grid-connected applications.Type: ApplicationFiled: November 8, 2019Publication date: August 6, 2020Inventor: Xue Jian CHEN
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Patent number: 10476369Abstract: The present disclosure relates to a circuit arrangement which comprises one high-efficiency fully soft-switching single-stage 3-level power amplifier with dual auxiliary networks. The primary-side passive auxiliary network is formed by one inductor and two capacitors to extend soft switching ranges and avoid switching loss. The secondary-side active auxiliary network is constituted of four switches, three capacitors and two inductors which not only removes or maximally reduces otherwise occurring disruptive spikes but also assists zero voltage switching (ZVS) for switches of active auxiliary network. A predictive gate drive method for driving power switches is presented to guarantee ZVS turn-on. The proposed circuit achieves high level of integration without bulky dc link capacitor, and high-efficiency by single-stage conversion and ZVS for all the switches under different operating conditions.Type: GrantFiled: July 12, 2017Date of Patent: November 12, 2019Inventors: Xue Jian Chen, Shilin Guo, Jianhui Su
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Publication number: 20190312741Abstract: Disclosed is a PoE apparatus deployed on the PD-side of a PoE configuration conforming to a PoE standard prescribing maximum power and current levels. The PoE apparatus comprises a current control element configured to draw from the PSE-side of the PoE configuration input current with input power and produce output current with output power, with the input current and power both respectively conforming to the maximum current and power levels of the PoE standard. The disclosed PoE apparatus further comprises a set of rechargeable batteries configured to be fully recharged by the aforementioned output current with the aforementioned output power at their respective levels and faithfully power the networked PoE device as a primary power source capable of producing instantaneous power large enough to meet the peak power requirement of the networked PoE device that is greater than the maximum power level of the PoE standard.Type: ApplicationFiled: April 12, 2019Publication date: October 10, 2019Inventor: Xue Jian Chen
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Patent number: 9900165Abstract: Disclosed is a PoE apparatus deployed on the PD-side of a PoE configuration conforming to a PoE standard prescribing maximum power and current levels. The PoE apparatus comprises a current control element configured to draw from the PSE-side of the PoE configuration input current with input power and produce output current with output power, with the input current and power both respectively conforming to the maximum current and power levels of the PoE standard. The disclosed PoE apparatus further comprises a set of rechargeable batteries configured to be fully recharged by the aforementioned output current with the aforementioned output power at their respective levels and faithfully power the networked PoE device as a primary power source capable of producing instantaneous power large enough to meet the peak power requirement of the networked PoE device that is greater than the maximum power level of the PoE standard.Type: GrantFiled: October 11, 2016Date of Patent: February 20, 2018Assignee: GuangDong Redx Electrical TechnoInventor: Xue Jian Chen
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Publication number: 20180034359Abstract: The present disclosure relates to a circuit arrangement which comprises one high-efficiency fully soft-switching single-stage 3-level power amplifier with dual auxiliary networks. The primary-side passive auxiliary network is formed by one inductor and two capacitors to extend soft switching ranges and avoid switching loss. The secondary-side active auxiliary network is constituted of four switches, three capacitors and two inductors which not only removes or maximally reduces otherwise occurring disruptive spikes but also assists zero voltage switching (ZVS) for switches of active auxiliary network. A predictive gate drive method for driving power switches is presented to guarantee ZVS turn-on. The proposed circuit achieves high level of integration without bulky dc link capacitor, and high-efficiency by single-stage conversion and ZVS for all the switches under different operating conditions.Type: ApplicationFiled: July 12, 2017Publication date: February 1, 2018Inventors: Xue Jian CHEN, Shilin GUO, Jianhui SU
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Patent number: 9793866Abstract: A switching amplifier realizes bidirectional energy flow and combines switching and power amplification into one single stage so as to increase system efficiency. The modulator circuit of the amplifier receives and modulates an input signal, and generates and outputs modulated driver signals, which are used by the power driver circuit to generate signals to drive switching transformers of an amplifier circuit of the amplifier, and control signals, which are used to control an output generator circuit so as to allow individual inductors across the load by enabling current flowing through the load to have a path to ground. The amplifier circuit comprises switching transformers as well as circuitries configured to capture energy returned from the load and enable the captured energy to flow back to a power supply circuit of the amplifier through an energy flow-back circuit of the amplifier.Type: GrantFiled: April 4, 2016Date of Patent: October 17, 2017Assignee: GuangDong Redx Electrical Technology LimitedInventor: Xue Jian Chen
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Patent number: 9780742Abstract: A super-efficient single-stage switching power amplifier is realized by not incorporating a rectification process in its power conversion loop while incorporating a bidirectional active clamping circuit to not only remove or maximally reduce otherwise occurring disruptive ringing and spikes but also convert the energy otherwise associated with the ringing and spikes to return energy that goes back to the DC power supply.Type: GrantFiled: April 7, 2016Date of Patent: October 3, 2017Assignee: GuangDong Redx Electrical Technology LimitedInventor: Xue Jian Chen
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Publication number: 20170104603Abstract: Disclosed is a PoE apparatus deployed on the PD-side of a PoE configuration conforming to a PoE standard prescribing maximum power and current levels. The PoE apparatus comprises a current control element configured to draw from the PSE-side of the PoE configuration input current with input power and produce output current with output power, with the input current and power both respectively conforming to the maximum current and power levels of the PoE standard. The disclosed PoE apparatus further comprises a set of rechargeable batteries configured to be fully recharged by the aforementioned output current with the aforementioned output power at their respective levels and faithfully power the networked PoE device as a primary power source capable of producing instantaneous power large enough to meet the peak power requirement of the networked PoE device that is greater than the maximum power level of the PoE standard.Type: ApplicationFiled: October 11, 2016Publication date: April 13, 2017Inventor: Xue Jian Chen
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Publication number: 20160226461Abstract: A super-efficient single-stage switching power amplifier is realized by not incorporating a rectification process in its power conversion loop while incorporating a bidirectional active clamping circuit to not only remove or maximally reduce otherwise occurring disruptive ringing and spikes but also convert the energy otherwise associated with the ringing and spikes to return energy that goes back to the DC power supply.Type: ApplicationFiled: April 7, 2016Publication date: August 4, 2016Inventor: Xue Jian Chen
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Publication number: 20160218686Abstract: A switching amplifier realizes bidirectional energy flow and combines switching and power amplification into one single stage so as to increase system efficiency. The modulator circuit of the amplifier receives and modulates an input signal, and generates and outputs modulated driver signals, which are used by the power driver circuit to generate signals to drive switching transformers of an amplifier circuit of the amplifier, and control signals, which are used to control an output generator circuit so as to allow individual inductors across the load by enabling current flowing through the load to have a path to ground. The amplifier circuit comprises switching transformers as well as circuitries configured to capture energy returned from the load and enable the captured energy to flow back to a power supply circuit of the amplifier through an energy flow-back circuit of the amplifier.Type: ApplicationFiled: April 4, 2016Publication date: July 28, 2016Inventor: Xue Jian Chen
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Patent number: 9312823Abstract: A super-efficient single-stage switching power amplifier is realized by not incorporating a rectification process in its power conversion loop while incorporating a bidirectional active clamping circuit to not only remove or maximally reduce otherwise occurring disruptive ringing and spikes but also convert the energy otherwise associated with the ringing and spikes to return energy that goes back to the DC power supply.Type: GrantFiled: November 29, 2013Date of Patent: April 12, 2016Assignee: GuangDong Redx Electrical Technology LimitedInventor: Xue Jian Chen
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Patent number: 9306516Abstract: A switching amplifier realizes bidirectional energy flow and combines switching and power amplification into one single stage so as to increase system efficiency. The modulator circuit of the amplifier receives and modulates an input signal, and generates and outputs modulated driver signals, which are used by the power driver circuit to generate signals to drive switching transformers of an amplifier circuit of the amplifier, and control signals, which are used to control an output generator circuit so as to allow individual inductors across the load by enabling current flowing through the load to have a path to ground. The amplifier circuit comprises switching transformers as well as circuitries configured to capture energy returned from the load and enable the captured energy to flow back to a power supply circuit of the amplifier through an energy flow-back circuit of the amplifier.Type: GrantFiled: November 21, 2013Date of Patent: April 5, 2016Assignee: GuangDong Redx Electrical Technology LimitedInventor: Xue Jian Chen
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Publication number: 20140159809Abstract: A switching amplifier realizes bidirectional energy flow and combines switching and power amplification into one single stage so as to increase system efficiency. The modulator circuit of the amplifier receives and modulates an input signal, and generates and outputs modulated driver signals, which are used by the power driver circuit to generate signals to drive switching transformers of an amplifier circuit of the amplifier, and control signals, which are used to control an output generator circuit so as to allow individual inductors across the load by enabling current flowing through the load to have a path to ground. The amplifier circuit comprises switching transformers as well as circuitries configured to capture energy returned from the load and enable the captured energy to flow back to a power supply circuit of the amplifier through an energy flow-back circuit of the amplifier.Type: ApplicationFiled: November 21, 2013Publication date: June 12, 2014Applicant: Guangdong Rui Ding Electrical Technology LTD.Inventor: Xue Jian Chen
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Publication number: 20140159811Abstract: A super-efficient single-stage switching power amplifier is realized by not incorporating a rectification process in its power conversion loop while incorporating a bidirectional active clamping circuit to not only remove or maximally reduce otherwise occurring disruptive ringing and spikes but also convert the energy otherwise associated with the ringing and spikes to return energy that goes back to the DC power supply.Type: ApplicationFiled: November 29, 2013Publication date: June 12, 2014Applicant: Guangdong Rui Ding Electrical Technolgy LTD.Inventor: Xue Jian Chen
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Patent number: 8390373Abstract: An apparatus for providing a power output proportional to a source signal, including a phase modulator driving an upper and an lower power driver with carrier waveforms having a relative phase difference and having a signal modulated thereon, and coupled to a resonator circuit to operate as a substantially zero-voltage zero-current switching element, with the output fed into respective upper and lower transformers. Identical symmetrical secondary circuits on the transformers have a rectifier stage electrically connected to an inductor in series with an upper capacitor to form an upper low pass filter, and a high speed semiconductor switch coupled to a node between the inductor and rectifier stage provides a return path to ground. The lower secondary circuit inductor is highly coupled (>=0.99) to the upper inductor, and an output formed across the upper and lower output elements is isolated from rail voltage and balanced with bi-directional current.Type: GrantFiled: July 16, 2010Date of Patent: March 5, 2013Assignee: MUSIC Group IP Ltd.Inventor: Xue Jian Chen
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Publication number: 20110299309Abstract: An apparatus for providing a power output proportional to a source signal, including a phase modulator driving an upper and an lower power driver with carrier waveforms having a relative phase difference and having a signal modulated thereon, and coupled to a resonator circuit to operate as a substantially zero-voltage zero-current switching element, with the output fed into respective upper and lower transformers. Identical symmetrical secondary circuits on the transformers have a rectifier stage electrically connected to an inductor in series with an upper capacitor to form an upper low pass filter, and a high speed semiconductor switch coupled to a node between the inductor and rectifier stage provides a return path to ground. The lower secondary circuit inductor is highly coupled (>=0.99) to the upper inductor, and an output formed across the upper and lower output elements is isolated from rail voltage and balanced with bi-directional current.Type: ApplicationFiled: July 16, 2010Publication date: December 8, 2011Inventor: Xue Jian Chen