Patents by Inventor Zhongwang Yang
Zhongwang Yang 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: 20250031307Abstract: A power module is disclosed and includes an upper surface for receiving multiple input signals, a lower surface for outputting multiple output signals, a top layer circuit board, a bottom layer circuit board and a middle layer. The top layer circuit board includes a first surface and a second surface disposed opposite to each other, and multiple electronic devices. The first surface forms the upper surface, and multiple first signal connection parts are disposed on the first surface for receiving the multiple input signals. The bottom layer circuit board includes a third surface and a fourth surface disposed oppositely. The fourth surface forms the lower surface, and multiple second signal connection parts are disposed on the fourth surface for outputting the multiple output signals. The middle layer is disposed between the top layer circuit board and the bottom layer circuit board.Type: ApplicationFiled: June 21, 2024Publication date: January 23, 2025Inventors: Zhiwei Wang, Quansong Luo, Kaijian Yang, Zhongwang Yang
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Patent number: 12136884Abstract: The present disclosure provides a power converter including a first capacitor, a second capacitor, and a power module. The first capacitor and the second capacitor are connected in series. The power module is electrically connected to the first capacitor and the second capacitor and includes a circuit board, an absorption capacitor, a primary switch circuit, a magnetic component, and a secondary circuit. The absorption capacitor, the primary switch circuit, the magnetic component and the secondary circuit are disposed on the circuit board. A primary winding and a secondary winding of the magnetic component are electrically connected to the primary switch circuit and the secondary circuit respectively.Type: GrantFiled: April 22, 2022Date of Patent: November 5, 2024Assignee: Delta Electronics, Inc.Inventors: Yang Leng, Zhongwang Yang, Yankai Liu, Wenhua Li, Wei Tang
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Publication number: 20240347256Abstract: A magnetic device includes a magnetic core assembly, a primary winding, a first secondary winding, at least one second secondary winding and an auxiliary winding. The magnetic core assembly includes a first magnetic leg, a second magnetic leg and a third magnetic leg. The primary winding is wound around the second magnetic leg. The at least one secondary winding is wound around the second magnetic leg or the third magnetic leg. The auxiliary winding is electrically connected with an auxiliary inductor and wound around at least one magnetic leg. The primary winding is electrically connected with a first switch circuit, and the at least one secondary winding is electrically connected with a second switch circuit, wherein when switches of the first switch circuit turn off and switches of the second switch circuit turn on, an superposed AC voltage coupled by the auxiliary winding is applied on the auxiliary inductor.Type: ApplicationFiled: June 25, 2024Publication date: October 17, 2024Inventors: Da Jin, Yang Leng, Zhongwang Yang, Yahong Xiong
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Patent number: 12062479Abstract: A magnetic device includes a magnetic core assembly, a primary winding, a first secondary winding and a second secondary winding. The magnetic core assembly includes a first magnetic cover, a second magnetic cover, a first magnetic leg, a second magnetic leg, a third magnetic leg and a fourth magnetic leg. The primary winding is wound around the first magnetic leg and the third magnetic leg. A first terminal of the first secondary winding is disposed between the first magnetic leg and the second magnetic leg. A second terminal of the first secondary winding is disposed between the third magnetic leg and the fourth magnetic leg. A first terminal of the second secondary winding is disposed between the first magnetic leg and the fourth magnetic leg. A second terminal of the second secondary winding is disposed between the second magnetic leg and the third magnetic leg.Type: GrantFiled: March 30, 2022Date of Patent: August 13, 2024Assignee: DELTA ELECTRONICS, INC.Inventors: Da Jin, Yang Leng, Zhongwang Yang, Yahong Xiong
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Patent number: 12009138Abstract: A magnetic device includes a magnetic core assembly, a first secondary winding, a second secondary winding and a primary winding. The magnetic core assembly includes a first magnetic leg, a second magnetic leg and a third magnetic leg. The first to third magnetic legs are arranged in sequence. The second magnetic leg is disposed between the first magnetic leg and the third magnetic leg. The first secondary winding is disposed between the first magnetic leg and the second magnetic leg, and the second secondary winding is disposed between the second magnetic leg and the third magnetic leg. A first terminal of the primary winding is disposed between the first magnetic leg and the second magnetic leg, and a second terminal of the primary winding is disposed between the second magnetic leg and the third magnetic leg.Type: GrantFiled: November 15, 2022Date of Patent: June 11, 2024Assignee: DELTA ELECTRONICS, INC.Inventors: Da Jin, Yang Leng, Zhongwang Yang, Yahong Xiong
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Patent number: 11996780Abstract: The present disclosure provides a power conversion circuit including positive and negative input terminals, a clamping branch circuit, a first primary switch, a transformer, a rectifier circuit, a resonant inductor, a resonant capacitor, and positive and negative output terminals. The clamping branch circuit includes a clamping capacitor and a second primary switch serially connected between the first and second terminals thereof. The first terminal is coupled to the positive input terminal. The first primary switch is connected between the second terminal and the negative input terminal. The primary winding of the transformer is connected to the clamping branch circuit in parallel. The rectifier circuit includes first and second bridge arms connected in parallel. Connection terminals in the first and second bridge arms are coupled to two terminals of the secondary winding of the transformer correspondingly. The first and second bridge arms are coupled between the positive and negative output terminals.Type: GrantFiled: May 24, 2022Date of Patent: May 28, 2024Assignee: DELTA ELECTRONICS, INC.Inventors: Zhongwang Yang, Qi Xia
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Publication number: 20240171067Abstract: An integrated circuit and a converter having the same are provided. The converter further includes a first switch, and the integrated circuit includes a second switch and a sampling processing circuit. The control signals of the first and second switches are complementary, and the control signal of the second switch has a dead time. The sampling processing circuit is for sampling the voltage on the second switch to obtain a duration of the dead time and generating the digital signal according to the duration of the dead time. The digital signal is used to adjust the duration of the dead time.Type: ApplicationFiled: October 12, 2023Publication date: May 23, 2024Inventors: Zhongwang Yang, Xueliang Chang, Mingjie Shan
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Publication number: 20240171066Abstract: A deadtime regulation device and a converter having the same are provided. The converter further includes a first switch, the deadtime regulation device includes a communication bus, an integrated circuit and a controller, and the integrated circuit includes a second switch, a sampling processing circuit and a bus control circuit. The control signals of the first and second switches are complementary, and the control signal of the second switch has a dead time. The sampling processing circuit is for sampling the voltage on the second switch to obtain a duration of the dead time and generating the digital signal accordingly. The controller receives the digital signal from the bus control circuit through the communication bus and adjusts the duration of the dead time according to the received digital signal. The controller performs alignment of the communication timing sequence of the communication bus before transmitting the digital signal.Type: ApplicationFiled: October 13, 2023Publication date: May 23, 2024Inventors: Zhongwang Yang, Xueliang Chang, Mingjie Shan
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Patent number: 11894777Abstract: A power conversion circuit includes a first terminal, a second terminal, a first switching conversion unit, a second switching conversion unit, a flying capacitor and a magnetic element. The first switching conversion unit includes a first switch and a third switch. The second switching conversion unit includes a second switch and a fourth switch. The magnetic element includes two first windings and a second winding. A first one of the two first windings is serially connected between the flying capacitor and the second terminal. A second one of the two first windings is serially connected between the second switch and the second terminal. The second winding is serially connected with the flying capacitor and the first one of the two first windings. A turn ratio between the second winding, the first one of the two first windings and the second one of the two first windings is N:1:1.Type: GrantFiled: March 17, 2023Date of Patent: February 6, 2024Assignee: DELTA ELECTRONICS, INC.Inventors: Da Jin, Yahong Xiong, Qinghua Su, Zhongwang Yang
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Patent number: 11824457Abstract: A power conversion module is disclosed. The power conversion module includes a power conversion module includes a circuit board and a first basic power unit. The first basic power unit is disposed on the circuit board and includes a magnetic device, a primary switch circuit, a first secondary rectifying circuit and a first positive output terminal pin. The primary switch circuit, the first secondary rectifying circuit, the magnetic device and the first positive output terminal pin are sequentially arranged on the circuit board along a first direction.Type: GrantFiled: March 30, 2022Date of Patent: November 21, 2023Assignee: DELTA ELECTRONICS, INC.Inventors: Da Jin, Yang Leng, Litao Qian, Zhongwang Yang
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Publication number: 20230223832Abstract: A power conversion circuit includes a first terminal, a second terminal, a first switching conversion unit, a second switching conversion unit, a flying capacitor and a magnetic element. The first switching conversion unit includes a first switch and a third switch. The second switching conversion unit includes a second switch and a fourth switch. The magnetic element includes two first windings and a second winding. A first one of the two first windings is serially connected between the flying capacitor and the second terminal. A second one of the two first windings is serially connected between the second switch and the second terminal. The second winding is serially connected with the flying capacitor and the first one of the two first windings. A turn ratio between the second winding, the first one of the two first windings and the second one of the two first windings is N:1:1.Type: ApplicationFiled: March 17, 2023Publication date: July 13, 2023Inventors: Da Jin, Yahong Xiong, Qinghua Su, Zhongwang Yang
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Publication number: 20230223186Abstract: A magnetic device includes a magnetic core assembly and a winding assembly. The magnetic core assembly includes a first outer magnetic leg, a second outer magnetic leg, a first inner magnetic leg group and a second inner magnetic leg group. A first channel is formed between the first inner magnetic leg group and the first outer magnetic leg. A second channel is formed between the second inner magnetic leg group and the first inner magnetic leg group. A third channel is formed between the second inner magnetic leg group and the second outer magnetic leg. The winding assembly includes four coupled windings. The first terminals of the four coupled windings are located near a first lateral side of the magnetic core assembly. The second terminals of the four coupled windings are located near a second lateral side of the magnetic core assembly.Type: ApplicationFiled: January 3, 2023Publication date: July 13, 2023Inventors: Da Jin, Yahong Xiong, Yang Leng, Yankai Liu, Zhongwang Yang
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Patent number: 11646668Abstract: A power converter includes N power conversion units. Each power conversion unit includes a main switching circuit, a transformer, a synchronous rectifier circuit, an input signal terminal and a signal processor. A primary winding of the transformer is connected with the main switching circuit. The synchronous rectifier circuit is connected with a secondary winding of the transformer. The input signal terminal receives a first PWM control signal. The signal processor generates first and second PWM driving signals to drive the main switching circuit according to the first PWM control signal, and a phase difference between the first and second PWM driving signals is (180±?) degree. The signal processor generates third and fourth PWM driving signals to drive the synchronous rectifier circuit according to the first PWM control signal, and a phase difference between the third and fourth PWM driving signals is (180±?) degree.Type: GrantFiled: September 23, 2021Date of Patent: May 9, 2023Assignee: DELTA ELECTRONICS, INC.Inventors: Yahong Xiong, Yang Leng, Junguo Cui, Zhongwang Yang
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Publication number: 20230075167Abstract: A magnetic device includes a magnetic core assembly, a first secondary winding, a second secondary winding and a primary winding. The magnetic core assembly includes a first magnetic leg, a second magnetic leg and a third magnetic leg. The first to third magnetic legs are arranged in sequence. The second magnetic leg is disposed between the first magnetic leg and the third magnetic leg. The first secondary winding is disposed between the first magnetic leg and the second magnetic leg, and the second secondary winding is disposed between the second magnetic leg and the third magnetic leg. A first terminal of the primary winding is disposed between the first magnetic leg and the second magnetic leg, and a second terminal of the primary winding is disposed between the second magnetic leg and the third magnetic leg.Type: ApplicationFiled: November 15, 2022Publication date: March 9, 2023Inventors: Da Jin, Yang Leng, Zhongwang Yang, Yahong Xiong
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Publication number: 20230006560Abstract: The present disclosure provides a power conversion circuit including positive and negative input terminals, a clamping branch circuit, a first primary switch, a transformer, a rectifier circuit, a resonant inductor, a resonant capacitor, and positive and negative output terminals. The clamping branch circuit includes a clamping capacitor and a second primary switch serially connected between the first and second terminals thereof. The first terminal is coupled to the positive input terminal. The first primary switch is connected between the second terminal and the negative input terminal. The primary winding of the transformer is connected to the clamping branch circuit in parallel. The rectifier circuit includes first and second bridge arms connected in parallel. Connection terminals in the first and second bridge arms are coupled to two terminals of the secondary winding of the transformer correspondingly. The first and second bridge arms are coupled between the positive and negative output terminals.Type: ApplicationFiled: May 24, 2022Publication date: January 5, 2023Inventors: Zhongwang Yang, Qi Xia
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Publication number: 20220352826Abstract: The present disclosure provides a power converter including a first capacitor, a second capacitor, and a power module. The first capacitor and the second capacitor are connected in series. The power module is electrically connected to the first capacitor and the second capacitor and includes a circuit board, an absorption capacitor, a primary switch circuit, a magnetic component, and a secondary circuit. The absorption capacitor, the primary switch circuit, the magnetic component and the secondary circuit are disposed on the circuit board. A primary winding and a secondary winding of the magnetic component are electrically connected to the primary switch circuit and the secondary circuit respectively.Type: ApplicationFiled: April 22, 2022Publication date: November 3, 2022Inventors: Yang Leng, Zhongwang Yang, Yankai Liu, Wenhua Li, Wei Tang
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Publication number: 20220319759Abstract: A magnetic device includes a magnetic core assembly, a primary winding, a first secondary winding and a second secondary winding. The magnetic core assembly includes a first magnetic cover, a second magnetic cover, a first magnetic leg, a second magnetic leg, a third magnetic leg and a fourth magnetic leg. The primary winding is wound around the first magnetic leg and the third magnetic leg. A first terminal of the first secondary winding is disposed between the first magnetic leg and the second magnetic leg. A second terminal of the first secondary winding is disposed between the third magnetic leg and the fourth magnetic leg. A first terminal of the second secondary winding is disposed between the first magnetic leg and the fourth magnetic leg. A second terminal of the second secondary winding is disposed between the second magnetic leg and the third magnetic leg.Type: ApplicationFiled: March 30, 2022Publication date: October 6, 2022Inventors: Da Jin, Yang Leng, Zhongwang Yang, Yahong Xiong
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Publication number: 20220321017Abstract: A power conversion module is disclosed. The power conversion module includes a power conversion module includes a circuit board and a first basic power unit. The first basic power unit is disposed on the circuit board and includes a magnetic device, a primary switch circuit, a first secondary rectifying circuit and a first positive output terminal pin. The primary switch circuit, the first secondary rectifying circuit, the magnetic device and the first positive output terminal pin are sequentially arranged on the circuit board along a first direction.Type: ApplicationFiled: March 30, 2022Publication date: October 6, 2022Inventors: Da Jin, Yang Leng, Litao Qian, Zhongwang Yang
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Publication number: 20220131471Abstract: A power converter includes N power conversion units. Each power conversion unit includes a main switching circuit, a transformer, a synchronous rectifier circuit, an input signal terminal and a signal processor. A primary winding of the transformer is connected with the main switching circuit. The synchronous rectifier circuit is connected with a secondary winding of the transformer. The input signal terminal receives a first PWM control signal. The signal processor generates first and second PWM driving signals to drive the main switching circuit according to the first PWM control signal, and a phase difference between the first and second PWM driving signals is (180±?) degree. The signal processor generates third and fourth PWM driving signals to drive the synchronous rectifier circuit according to the first PWM control signal, and a phase difference between the third and fourth PWM driving signals is (180±?) degree.Type: ApplicationFiled: September 23, 2021Publication date: April 28, 2022Inventors: Yahong Xiong, Yang Leng, Junguo Cui, Zhongwang Yang
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Publication number: 20210272737Abstract: A magnetic assembly includes a magnetic core, four primary windings and four secondary windings. The magnetic core includes four lateral legs. The four primary windings and the corresponding secondary windings are magnetically coupled with each other, and the four primary windings and the corresponding secondary windings are wound on the corresponding lateral legs. The winding directions of the four secondary windings on the corresponding lateral legs are identical. A phase difference between a magnetic flux flowing through a specified lateral leg of the four lateral legs and a magnetic flux flowing through an adjacent lateral leg is any value in the range between 150 degrees and 210 degrees. A phase difference between the magnetic flux flowing through the specified lateral leg and the magnetic flux flowing through another adjacent lateral leg is any value in the range between 60 degrees and 120 degrees.Type: ApplicationFiled: February 4, 2021Publication date: September 2, 2021Inventors: Da Jin, Yang Leng, Zhongwang Yang, Qinghua Su