Patents by Inventor Lin Guo Wang
Lin Guo Wang 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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Patent number: 11953409Abstract: A gas extraction device for metal mineral inclusions and a gas extraction method therefor are provided, the device includes a base plate, an annular carrier, sealing covers, a grinding assembly, a vacuum assembly, a gas-gathering assembly and a mass spectrometer. The annular carrier is disposed on the base plate, multiple grinding chambers are defined and evenly distributed in a circular shape on the annular carrier, the sealing covers are disposed at openings of the grinding chambers, the grinding assembly includes grinding hammers, and the grinding hammers penetrate through the sealing covers and extend into the grinding chambers. Side walls of each grinding chamber defines a first through hole and a second through hole. The vacuum assembly is communicated with the grinding chambers through the first through holes. The gas-gathering assembly is communicated with the grinding chambers through the second through holes. The mass spectrometer is communicated with the gas-gathering assembly.Type: GrantFiled: December 23, 2023Date of Patent: April 9, 2024Assignee: INNER MONGOLIA UNIVERSITY OF TECHNOLOGYInventors: Xiang-Guo Guo, Zhu Li, Xu Fu, Xudong Yan, Lin Li, Yue-Xing Wang, Zhi Shang, Cheng-Hao Ren, Dehui Zhang
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Patent number: 8885371Abstract: Multi-level power converters are disclosed. In one embodiment, a multi-level power converter includes an input for receiving an input voltage and a converter output for providing a variable output voltage. The multi-level power converter includes a plurality of switching circuits. Each switching circuit is connected to the input in parallel with each other switching circuit. Each switching circuit includes an output. Each switching circuit is selectively operable to couple its output to the input voltage or a reference voltage. The multi-level power converter includes a parallel multi-winding autotransformer (PMA). The PMA includes a plurality of windings and a magnetic core having a plurality of magnetically connected columns. Each winding is positioned around a different one of the columns and has a beginning and an end. The output of each switching circuit is coupled to the beginning of a different winding. The end of each winding is connected to the converter output in parallel with each other winding.Type: GrantFiled: April 25, 2011Date of Patent: November 11, 2014Assignee: Astec International LimitedInventors: Piotr Markowski, Lin Guo Wang, Hong Fei Bu
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Patent number: 8742877Abstract: Multi-winding magnetic structures and methods of making multi-winding magnetic structures are disclosed. In one embodiment, a multi-winding magnetic structure includes a core constructed of a magnetic material and a plurality of windings. The core includes a core top, a core bottom, and a plurality of columns. The core top has an exterior edge defining a shape of the core top. A central section of the core top has a substantially constant thickness that defines a thickness of the core top. The core bottom is beneath the core top and has an exterior edge defining a shape of the core bottom. A central section of the core bottom has a substantially constant thickness that defines a thickness of the core bottom. The thickness of one of the core bottom and the core top decreases from an edge of its central section to its exterior edge. The plurality of columns extends from the core bottom to the core top and the plurality of windings are wound around the columns.Type: GrantFiled: October 20, 2010Date of Patent: June 3, 2014Assignee: Astec International LimitedInventors: Piotr Markowski, Lin Guo Wang, Hong Fei Bu, Feng Chuan Gao, Jian Wang
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Publication number: 20130200974Abstract: Multi-winding magnetic structures and methods of making multi-winding magnetic structures are disclosed. A multi-winding magnetic structure includes a plurality of windings (512A, 512B; 612A, 612B, 612C; 712A, 712B; 912A, 912B, 912C; 1012A, 1012B; 1112A, 1112B; 1212A, 1212B; 1412; 1512A, 1512B) and a core (402; 502; 602; 702; 902; 1202; 1402; 1502) formed of a magnetic material. The core includes a core top (408; 508; 608; 708; 908; 1208; 1408; 1508), a core bottom (410; 510; 610; 710; 910; 1210; 1410; 1510) and a plurality of columns (404A, 404B, 404C; 504A, 504B; 604A, 604B, 604C; 704A, 704B; 904A, 90413, 904C; 1204; 1404; 1504). The core top has an exterior edge (1522) defining the shape of the core top and a central section (1516) having a substantially constant thickness. The core bottom which is beneath the core top has an exterior edge (1526) defining the shape of the core bottom and a central section (1518) having a substantially constant thickness.Type: ApplicationFiled: October 20, 2010Publication date: August 8, 2013Applicant: Astec International LimitedInventors: Piotr Markowski, Lin Guo Wang, Hong Fei Bu, Feng Chuan Gao, Jian Wang
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Patent number: 8466765Abstract: Multi-winding magnetic structures and methods of making multi-winding magnetic structures are disclosed. In one embodiment, a multi-winding magnetic structure includes a core constructed of a magnetic material and a plurality of windings. The core includes a core top, a core bottom, and a plurality of columns. The core top has an exterior edge defining a shape of the core top. A central section of the core top has a substantially constant thickness that defines a thickness of the core top. The core bottom is beneath the core top and has an exterior edge defining a shape of the core bottom. A central section of the core bottom has a substantially constant thickness that defines a thickness of the core bottom. The thickness of one of the core bottom and the core top decreases from an edge of its central section to its exterior edge. The plurality of columns extends from the core bottom to the core top and the plurality of windings are wound around the columns.Type: GrantFiled: April 26, 2011Date of Patent: June 18, 2013Assignee: Astec International LimitedInventors: Piotr Markowski, Lin Guo Wang, Hong Fei Bu, Feng Chuan Gao, Jian Wang
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Publication number: 20120098632Abstract: Multi-winding magnetic structures and methods of making multi-winding magnetic structures are disclosed. In one embodiment, a multi-winding magnetic structure includes a core constructed of a magnetic material and a plurality of windings. The core includes a core top, a core bottom, and a plurality of columns. The core top has an exterior edge defining a shape of the core top. A central section of the core top has a substantially constant thickness that defines a thickness of the core top. The core bottom is beneath the core top and has an exterior edge defining a shape of the core bottom. A central section of the core bottom has a substantially constant thickness that defines a thickness of the core bottom. The thickness of one of the core bottom and the core top decreases from an edge of its central section to its exterior edge. The plurality of columns extends from the core bottom to the core top and the plurality of windings are wound around the columns.Type: ApplicationFiled: April 26, 2011Publication date: April 26, 2012Applicant: Astec International LimitedInventors: Piotr Markowski, Lin Guo Wang, Hong Fei Bu, Feng Chuan Gao, Jian Wang
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Publication number: 20120092908Abstract: Multi-level power converters are disclosed. In one embodiment, a multi-level power converter includes an input for receiving an input voltage and a converter output for providing a variable output voltage. The multi-level power converter includes a plurality of switching circuits. Each switching circuit is connected to the input in parallel with each other switching circuit. Each switching circuit includes an output. Each switching circuit is selectively operable to couple its output to the input voltage or a reference voltage. The multi-level power converter includes a parallel multi-winding autotransformer (PMA). The PMA includes a plurality of windings and a magnetic core having a plurality of magnetically connected columns. Each winding is positioned around a different one of the columns and has a beginning and an end. The output of each switching circuit is coupled to the beginning of a different winding. The end of each winding is connected to the converter output in parallel with each other winding.Type: ApplicationFiled: April 25, 2011Publication date: April 19, 2012Applicant: Astec International LimitedInventors: Markowski Piotr, Lin Guo Wang, Hong Fei Bu
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Patent number: 7994761Abstract: A regulator comprising a linear regulator. The linear regulator may comprise a preamplifier, a first radio frequency (RF) transistor and a second radio frequency (RF) transistor. An output of the preamplifier stage may be provided to a biasing terminal of the first RF transistor and a biasing terminal of the second RF transistor. Also, the first and second RF transistors may be electrically connected in series between a positive supply voltage and a negative supply voltage.Type: GrantFiled: October 8, 2007Date of Patent: August 9, 2011Assignee: Astec International LimitedInventors: Piotr Markowski, Lin Guo Wang
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Patent number: 7859336Abstract: A circuit for use with a power amplifier that amplifies an input signal. The circuit may comprise an amplitude correction circuit and an open-loop switching regulator. The amplitude correction circuit may be configured to generate a corrected envelope signal from an input envelope signal that represents an envelope of the input signal. The open-loop switching regulator may be connected to the amplitude correction circuit and may be for powering the power amplifier based on the corrected envelope signal. According to various embodiments, the corrected envelope signal generated by the amplitude correction circuit is a function of the input envelope signal and an error voltage of the open-loop switching regulator.Type: GrantFiled: October 9, 2007Date of Patent: December 28, 2010Assignee: Astec International LimitedInventors: Piotr Markowski, Lin Guo Wang
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Patent number: 7830269Abstract: A method for detecting a performance degradation of a capacitor in a power converter is disclosed. The method includes monitoring a voltage across the capacitor, detecting the performance degradation of the capacitor based on the monitored voltage, and generating a warning signal after detecting the performance degradation of the capacitor. A power converter is including at least one capacitor and a processor operably coupled to the at least one capacitor for monitoring a voltage across the at least one capacitor is also disclosed. The processor is configured for detecting a performance degradation of the capacitor based, at least in part, on the monitored voltage, and for generating a warning signal after detecting the performance degradation of the at least one capacitor.Type: GrantFiled: September 14, 2007Date of Patent: November 9, 2010Assignee: Astec International LimitedInventors: Wing Ling Cheng, Zhe Wang, Huai Gang Jiang, Lin Guo Wang
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Patent number: 7817051Abstract: A power converter including a processor, at least one component whose health in the power converter will degrade over time, and at least one alarm is disclosed. The processor is configured for monitoring the health of the component over time, and for activating the alarm when the monitored health of the component reaches a threshold level.Type: GrantFiled: September 14, 2007Date of Patent: October 19, 2010Assignee: Astec International LimitedInventors: Wing Ling Cheng, Zhe Wang, Huai Gang Jiang, Lin Guo Wang
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Patent number: 7808313Abstract: A circuit for use with a power amplifier that amplifies an input signal. The circuit may comprise an amplitude correction circuit and an open-loop switching regulator. The amplitude correction circuit may be configured to generate a corrected envelope signal from an input envelope signal that represents an envelope of the input signal. The open-loop switching regulator may be connected to the amplitude correction circuit and may be for powering the power amplifier based on the corrected envelope signal. According to various embodiments, the corrected envelope signal generated by the amplitude correction circuit is a function of the input envelope signal and an error voltage of the open-loop switching regulator.Type: GrantFiled: April 3, 2009Date of Patent: October 5, 2010Assignee: Astec International LimitedInventors: Piotr Markowski, Lin Guo Wang
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Patent number: 7804415Abstract: A power converter including a processor and at least one component whose health in the power converter will degrade over time is disclosed. The processor is configured for monitoring the health of the component over time, and for generating a warning signal when the monitored health of the component reaches a threshold level. A method for monitoring the health of at least one component in a power converter is also disclosed. The method includes monitoring at least one performance characteristic of the power converter. The performance characteristic represents the health of the component. The method further includes comparing the monitored performance characteristic with stored data to determine whether the health of the component has reached a predetermined level, and generating a warning signal after determining the health of the component has reached the predetermined level.Type: GrantFiled: September 14, 2007Date of Patent: September 28, 2010Assignee: Astec International LimitedInventors: Wing Ling Cheng, Zhe Wang, Huai Gang Jiang, Lin Guo Wang
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Publication number: 20090184764Abstract: A circuit for use with a power amplifier that amplifies an input signal. The circuit may comprise an amplitude correction circuit and an open-loop switching regulator. The amplitude correction circuit may be configured to generate a corrected envelope signal from an input envelope signal that represents an envelope of the input signal. The open-loop switching regulator may be connected to the amplitude correction circuit and may be for powering the power amplifier based on the corrected envelope signal. According to various embodiments, the corrected envelope signal generated by the amplitude correction circuit is a function of the input envelope signal and an error voltage of the open-loop switching regulator.Type: ApplicationFiled: April 3, 2009Publication date: July 23, 2009Inventors: Piotr Markowski, Lin Guo Wang
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Publication number: 20090091305Abstract: A regulator comprising a linear regulator. The linear regulator may comprise a preamplifier, a first radio frequency (RF) transistor and a second radio frequency (RF) transistor. An output of the preamplifier stage may be provided to a biasing terminal of the first RF transistor and a biasing terminal of the second RF transistor. Also, the first and second RF transistors may be electrically connected in series between a positive supply voltage and a negative supply voltage.Type: ApplicationFiled: October 8, 2007Publication date: April 9, 2009Inventors: Piotr Markowski, Lin Guo Wang
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Publication number: 20090072982Abstract: A method for detecting a performance degradation of a capacitor in a power converter is disclosed. The method includes monitoring a voltage across the capacitor, detecting the performance degradation of the capacitor based on the monitored voltage, and generating a warning signal after detecting the performance degradation of the capacitor. A power converter is including at least one capacitor and a processor operably coupled to the at least one capacitor for monitoring a voltage across the at least one capacitor is also disclosed. The processor is configured for detecting a performance degradation of the capacitor based, at least in part, on the monitored voltage, and for generating a warning signal after detecting the performance degradation of the at least one capacitor.Type: ApplicationFiled: September 14, 2007Publication date: March 19, 2009Inventors: Wing Ling Cheng, Zhe Wang, Huai Gang Jiang, Lin Guo Wang
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Publication number: 20090072984Abstract: A power converter including a processor and at least one component whose health in the power converter will degrade over time is disclosed. The processor is configured for monitoring the health of the component over time, and for generating a warning signal when the monitored health of the component reaches a threshold level. A method for monitoring the health of at least one component in a power converter is also disclosed. The method includes monitoring at least one performance characteristic of the power converter. The performance characteristic represents the health of the component. The method further includes comparing the monitored performance characteristic with stored data to determine whether the health of the component has reached a predetermined level, and generating a warning signal after determining the health of the component has reached the predetermined level.Type: ApplicationFiled: September 14, 2007Publication date: March 19, 2009Inventors: Wing Ling Cheng, Zhe Wang, Haui Gang Jiang, Lin Guo Wang
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Publication number: 20090072983Abstract: A power converter including a processor, at least one component whose health in the power converter will degrade over time, and at least one alarm is disclosed. The processor is configured for monitoring the health of the component over time, and for activating the alarm when the monitored health of the component reaches a threshold level.Type: ApplicationFiled: September 14, 2007Publication date: March 19, 2009Inventors: Wing Ling Cheng, Zhe Wang, Huai Gang Jiang, Lin Guo Wang
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Publication number: 20080224769Abstract: A circuit for use with a power amplifier that amplifies an input signal. The circuit may comprise an amplitude correction circuit and an open-loop switching regulator. The amplitude correction circuit may be configured to generate a corrected envelope signal from an input envelope signal that represents an envelope of the input signal. The open-loop switching regulator may be connected to the amplitude correction circuit and may be for powering the power amplifier based on the corrected envelope signal. According to various embodiments, the corrected envelope signal generated by the amplitude correction circuit is a function of the input envelope signal and an error voltage of the open-loop switching regulator.Type: ApplicationFiled: October 9, 2007Publication date: September 18, 2008Inventors: Piotr Markowski, Lin Guo Wang