Patents by Inventor Xiaoni Xin
Xiaoni Xin 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: 20190013736Abstract: A power module and a manufacturing method thereof are disclosed. The power module includes a magnetic component, a bare power chip and a conductive set. The magnetic component includes a first surface and a second surface opposite to each other. The bare power chip is disposed on the magnetic component and includes a third surface and a fourth surface opposite to each other. The conductive set is disposed on the magnetic component and electrically connected with the magnetic component and the bare power chip. The third or fourth surface of the bare power chip is at least partially attached on the first or second surface of the magnetic component, and at least partially included in a projected envelopment of the corresponding first or second surface of the magnetic component, so as to facilitate the magnetic component to support the bare power chip.Type: ApplicationFiled: September 13, 2018Publication date: January 10, 2019Inventors: Shouyu Hong, Qingdong Chen, Kai Lu, Pengkai Ji, Xiaoni Xin, Min Zhou, Yu Zhang, Jianhong Zeng
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Patent number: 10126795Abstract: A power chip includes: a first power switch, formed in a wafer region and having a first metal electrode and a second metal electrode; a second power switch, formed in the wafer region and having a third metal electrode and a fourth metal electrode, wherein the first and second power switches respectively constitute an upper bridge arm and a lower bridge arm of a bridge circuit, and the first and second power switches are alternately arranged along at least one dimension direction; and a metal region, at least including a first metal layer, a second metal layer and a third metal layer that are stacked in sequence, each metal layer including a first strip electrode, a second strip electrode and a third strip electrode, and strip electrodes with the same voltage potential in two adjacent metal layers are electrically coupled.Type: GrantFiled: June 5, 2017Date of Patent: November 13, 2018Assignee: DELTA ELECTRONICS (SHANGHAI) CO.,LTDInventors: Yan Chen, Xiaoni Xin, Le Liang, Shouyu Hong, Jianhong Zeng
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Patent number: 10032553Abstract: A transformer unit and a power converter circuit are provided. The transformer unit includes: a first secondary wiring layer including a first secondary winding; a second secondary wiring layer adjacent to the first secondary wiring layer and including a second secondary winding, a first end of the second secondary winding being connected to a first end of the first secondary winding via at least one first via hole; and a plurality of primary wiring layers including a primary winding, the first secondary wiring layer and the second secondary wiring layer being disposed between the plurality of primary wiring layers, wherein at least one of the first via hole is disposed within a projection of the primary winding in the plurality of primary wiring layers.Type: GrantFiled: December 15, 2016Date of Patent: July 24, 2018Assignee: Delta Electronics (Shanghai) CO., LTDInventors: Jianhong Zeng, Xiaoni Xin
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Publication number: 20180059749Abstract: A power chip includes: a first power switch, formed in a wafer region and having a first metal electrode and a second metal electrode; a second power switch, formed in the wafer region and having a third metal electrode and a fourth metal electrode, wherein the first and second power switches respectively constitute an upper bridge arm and a lower bridge arm of a bridge circuit, and the first and second power switches are alternatively arranged along at least one dimension direction; and a metal region, at least including a first metal layer, a second metal layer and a third metal layer that are stacked in sequence, each metal layer including a first strip electrode, a second strip electrode and a third strip electrode, and strip electrodes with the same voltage potential in two adjacent metal layers are electrically coupled.Type: ApplicationFiled: June 5, 2017Publication date: March 1, 2018Applicant: Delta Electronics (Shanghai) CO., LTDInventors: Yan CHEN, Xiaoni XIN, Le LIANG, Shouyu HONG, Jianhong ZENG
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Publication number: 20180062638Abstract: A power chip and a bridge circuit are disclosed in the present disclosure. The power chip includes a metal region and a wafer region, wherein the power chip further includes: a first power switch, formed in the wafer region; and a second power switch, formed in the wafer region, wherein the first and second power switches constitute an upper bridge arm and a lower bridge arm of a bridge circuit, respectively. At least one of the upper bridge arm and the lower bridge arm includes two or more power switches which are connected in parallel with each other, and the first and second power switches are arranged alternatively along at least one dimension direction.Type: ApplicationFiled: June 5, 2017Publication date: March 1, 2018Applicant: Delta Electronics (Shanghai) CO., LTDInventors: Yan CHEN, Xiaoni XIN, Le LIANG, Shouyu HONG, Jianhong ZENG
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Publication number: 20170271073Abstract: A transformer unit and a power converter circuit are provided. The transformer unit includes: a first secondary wiring layer including a first secondary winding; a second secondary wiring layer adjacent to the first secondary wiring layer and including a second secondary winding, a first end of the second secondary winding being connected to a first end of the first secondary winding via at least one first via hole; and a plurality of primary wiring layers including a primary winding, the first secondary wiring layer and the second secondary wiring layer being disposed between the plurality of primary wiring layers, wherein at least one of the first via hole is disposed within a projection of the primary winding in the plurality of primary wiring layers.Type: ApplicationFiled: December 15, 2016Publication date: September 21, 2017Applicant: Delta Electronics (Shanghai) CO., LTDInventors: Jianhong ZENG, Xiaoni XIN
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Publication number: 20170141695Abstract: A converter module includes: a system board; and an isolated rectifier unit connected with the system board via at least one pin, the isolated rectifier unit including: a magnetic core including at least one core column parallel to the system board and two cover plates provided at both ends of the core column; and multiple carrier board units provided between the two cover plates and perpendicular to the system board, wherein the carrier board unit includes at least one via hole, at least one primary winding and at least one secondary winding; and wherein the at least one core column passes through the via hole of the carrier board unit, the pin is provided at one side of at least one of the carrier board units close to the system board and configured to connect the carrier board units with the system board.Type: ApplicationFiled: November 7, 2016Publication date: May 18, 2017Applicant: Delta Electronics (Shanghai) CO., LTDInventors: Jianhong ZENG, Xiaoni XIN
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Publication number: 20170133332Abstract: A power integrated module, including at least one first bridge formed in a chip, wherein the first bridge includes: a first upper bridge switch, formed by a plurality of first sub switches formed in the chip connected in parallel, and including a first, a second and a control end; a first lower bridge switch, formed by a plurality of second sub switches formed in the chip connected in parallel, and including a first, a second and a control end; a first electrode, connected to the first end of the first upper bridge switch; a second electrode, connected to the second end of the first lower bridge switch; and a third electrode, connected to the second end of the first upper bridge switch and the first end of the first lower bridge switch, wherein the first, the second and the third electrode are bar-type electrodes arranged side by side.Type: ApplicationFiled: January 20, 2017Publication date: May 11, 2017Applicant: Delta Electronics (Shanghai) CO., LTDInventors: Jianhong ZENG, Yan CHEN, Le LIANG, Xiaoni XIN
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Patent number: 9166488Abstract: An approach is provided for limiting or eliminating residual energy in a resonant network before restarting a resonant converter including the resonant network. An energy resetting module is configured to the resonant converter for limiting a peak current occurring in a switching circuit of the resonant converter by resetting energy remaining in a resonant circuit of the resonant converter after the resonant converter is turned off.Type: GrantFiled: October 22, 2010Date of Patent: October 20, 2015Assignee: DELTA ELECTRONICS INC.Inventors: Hongyang Wu, Bin Wang, Jian Jiang, Xiaoni Xin
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Patent number: 8649128Abstract: Disclosed is a power supply for receiving an input voltage and generating an output voltage and an output current, which includes a power converter for receiving the input voltage and generating an intermediate output voltage, an output protection circuit connected to an output terminal of the power converter and including a plurality of switch circuits connected in parallel with each other. The output protection circuit is configured to limit the flowing direction of the output current by the switching operations of the switch circuits. The power supply further includes a control unit connected to the output protection circuit for issuing a plurality of control signals to the switch circuits, in which at least two of the control signals are set to allow at least two of the switch circuits to be turned off with different timings.Type: GrantFiled: November 1, 2010Date of Patent: February 11, 2014Assignee: Delta Electronics, Inc.Inventors: Bin Wang, Hongyang Wu, Xiaoni Xin, Jian Jiang
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Patent number: 8593767Abstract: Disclosed is a power supply and a power supply system using such power supply. The inventive power supply includes a power converter for converting an input voltage into an intermediate output voltage, an output protection circuit connected to an output terminal of the power converter and an output terminal of the power supply for protecting the power converter by its ON/OFF operations, and a control unit connected to the output protection circuit for controlling the output protection circuit. When an operating frequency of the power converter is higher than a first reference frequency and the intermediate output voltage is higher than a first reference voltage, the control unit outputs a first control signal to a control terminal of the output protection circuit to turn off the output protection circuit.Type: GrantFiled: November 1, 2010Date of Patent: November 26, 2013Assignee: Delta Electronics, Inc.Inventors: Hongyang Wu, Xiaoni Xin, Bin Wang, Qikun Wu
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Patent number: 8541997Abstract: Provided is a current sensing signal comparing device and current sensing signal comparing method. The current sensing signal comparing device includes a current sensing circuit for detecting a current signal of a switching circuit and thereby generating a current sensing signal, a control unit for outputting a control signal, and a compensating circuit for compensating the current sensing signal according to the control signal. The compensated current sensing signal is compared with a constant current reference signal in order to issue a constant current control signal. The device can also be provided to configure the compensating circuit to compensate the constant current reference signal, such that the current sensing signal is compared with the compensated constant current reference signal in order to issue a constant current control signal.Type: GrantFiled: October 29, 2010Date of Patent: September 24, 2013Assignee: Delta Electronics, Inc.Inventors: Jian Jiang, Qikun Wu, Xiaoni Xin, Bin Wang, Hongyang Wu
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Patent number: 8400787Abstract: The configurations of a resonant converter system and a controlling method thereof are provided. The proposed resonant converter system includes a resonant converter receiving an input voltage for outputting an output voltage, a rectifying device having a first rectifying switch and a synchronous rectification control circuit coupled to the resonant converter and including a signal generation apparatus generating a weighted turn-off signal to turn off the first rectifying switch at a zero crossing point of a first current flowing through the first rectifying switch.Type: GrantFiled: October 6, 2011Date of Patent: March 19, 2013Assignee: Delta Electronics, Inc.Inventors: Hongyang Wu, Bin Wang, Jianhong Zeng, Jianping Ying, Xiaoni Xin
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Publication number: 20120026755Abstract: The configurations of a resonant converter system and a controlling method thereof are provided. The proposed resonant converter system includes a resonant converter receiving an input voltage for outputting an output voltage, a rectifying device having a first rectifying switch and a synchronous rectification control circuit coupled to the resonant converter and including a signal generation apparatus generating a weighted turn-off signal to turn off the first rectifying switch at a zero crossing point of a first current flowing through the first rectifying switch.Type: ApplicationFiled: October 6, 2011Publication date: February 2, 2012Applicant: DELTA ELECTRONICS, INC.Inventors: Hongyang WU, Bin WANG, Jianhong ZENG, Jianping YING, Xiaoni XIN
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Patent number: 8040696Abstract: The configurations of a resonant converter system and a controlling method thereof are provided. The proposed resonant converter system includes a resonant converter receiving an input voltage for outputting an output voltage, a rectifying device having a first rectifying switch and a synchronous rectification control circuit coupled to the resonant converter and including a signal generation apparatus generating a weighted turn-off signal to turn off the first rectifying switch at a zero crossing point of a first current flowing through the first rectifying switch.Type: GrantFiled: October 13, 2008Date of Patent: October 18, 2011Assignee: Delta Electronics, Inc.Inventors: Hongyang Wu, Bin Wang, Jianhong Zeng, Jianping Ying, Xiaoni Xin
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Patent number: 8031489Abstract: The configuration of a synchronous rectification circuit and a controlling method thereof are provided. The proposed circuit includes a converter including a first switch and a first synchronous rectifier, and a burst mode controller including a logic process module performing one of functions of delaying one of a non-integer and at least one operating periods to generate a synchronous rectification driving signal of the first synchronous rectifier counting from a beginning of a first pulse of a driving signal of the first switch during a working time of a burst period, and turning off the synchronous rectification driving signal of the first synchronous rectifier by one of the non-integer operating period and the at least one operating period ahead of an ending of a last operating period of the driving signal of the first switch during the working time of the burst period.Type: GrantFiled: March 27, 2009Date of Patent: October 4, 2011Assignee: Delta Electronics, Inc.Inventors: Bin Wang, Hongyang Wu, Jianping Ying, Xiaoni Xin, Qikun Wu
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Publication number: 20110107122Abstract: Disclosed is a power supply for receiving an input voltage and generating an output voltage and an output current, which includes a power converter for receiving the input voltage and generating an intermediate output voltage, an output protection circuit connected to an output terminal of the power converter and including a plurality of switch circuits connected in parallel with each other. The output protection circuit is configured to limit the flowing direction of the output current by the switching operations of the switch circuits. The power supply further includes a control unit connected to the output protection circuit for issuing a plurality of control signals to the switch circuits, in which at least two of the control signals are set to allow at least two of the switch circuits to be turned off with different timings.Type: ApplicationFiled: November 1, 2010Publication date: May 5, 2011Applicant: DELTA ELECTRONICS, INC.Inventors: Bin Wang, Hongyang Wu, Xiaoni Xin, Jian Jiang
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Publication number: 20110103098Abstract: An approach is provided for limiting or eliminating residual energy in a resonant network before restarting a resonant converter including the resonant network. An energy resetting module is configured to the resonant converter for limiting a peak current occurring in a switching circuit of the resonant converter by resetting energy remaining in a resonant circuit of the resonant converter after the resonant converter is turned off.Type: ApplicationFiled: October 22, 2010Publication date: May 5, 2011Applicant: Delta Electronics Inc.Inventors: Hongyang WU, Bin Wang, Jian Jiang, Xiaoni Xin
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Publication number: 20110103112Abstract: Provided is a current sensing signal comparing device and current sensing signal comparing method. The invention includes a current sensing circuit for detecting a current signal of a switching circuit and thereby generating a current sensing signal, a control unit for outputting a control signal, and a compensating circuit for compensating the current sensing signal according to the control signal. The compensated current sensing signal is compared with a constant current reference signal in order to issue a constant current control signal. The other aspect of the invention is provided to configure the compensating circuit to compensate the constant current reference signal, such that the current sensing signal is compared with the compensated constant current reference signal in order to issue a constant current control signal.Type: ApplicationFiled: October 29, 2010Publication date: May 5, 2011Applicant: DELTA ELECTRONICS, INC.Inventors: Jian Jiang, Qikun Wu, Xiaoni Xin, Bin Wang, Hongyang Wu
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Publication number: 20110102951Abstract: Disclosed is a power supply and a power supply system using such power supply. The inventive power supply includes a power converter for converting an input voltage into an intermediate output voltage, an output protection circuit connected to an output terminal of the power converter and an output terminal of the power supply for protecting the power converter by its ON/OFF operations, and a control unit connected to the output protection circuit for controlling the output protection circuit. When an operating frequency of the power converter is higher than a first reference frequency and the intermediate output voltage is higher than a first reference voltage, the control unit outputs a first control signal to a control terminal of the output protection circuit to turn off the output protection circuit.Type: ApplicationFiled: November 1, 2010Publication date: May 5, 2011Applicant: DELTA ELECTRONICS, INC.Inventors: Hongyang Wu, Xiaoni Xin, Bin Wang, Qikun Wu