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公开(公告)号：US20210367508A1
公开(公告)日：2021-11-25
申请号：US17146471
申请日：2021-01-11
Applicant: Delta Electronics (Shanghai) Co., Ltd.
Inventor： Haibin SONG , Jian ZHOU , Qi FU , Daofei XU , Jinfa ZHANG
Abstract: The present invention discloses a power factor correction circuit. The power factor correction circuit includes: a first bridge arm having a first switch and a second switch; a second bridge arm having a third switch and a fourth switch; a first inductor and a second inductor; a first capacitor and/or a second capacitor connected with a common point between the second inductor and the first inductor; and a third capacitor and/or a fourth capacitor, the third capacitor connected in parallel to the third switch based on an arrangement of the second capacitor and having a capacitance value same as that of the second capacitor, the fourth capacitor connected in parallel to the fourth switch based on an arrangement of the first capacitor and having a capacitance value same as that of the first capacitor.
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公开(公告)号：US20210233699A1
公开(公告)日：2021-07-29
申请号：US17216590
申请日：2021-03-29
Applicant: Delta Electronics (Shanghai) Co., Ltd.
Inventor： Haibin SONG , Zengyi LU , Jinfa ZHANG , Shiwei LIU , Jian ZHOU , Daofei XU , Jianwei SONG
Abstract: The present disclosure discloses a PCB winding transformer. The PCB winding transformer includes a magnetic core and a coil board with a multilayer structure. The coil board includes a primary coil and a secondary coil wound around a magnetic core column of the magnetic core. The secondary coil is located in a first layer and a last layer, and the primary coil is located in intermediate layers. The number of turns of the secondary coil is less than that of the primary coil. At least one via hole for connecting the first layer and the last layer of the secondary coil is disposed in the coil board between an inner side of the primary coil and the magnetic core column.
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公开(公告)号：US20220006389A1
公开(公告)日：2022-01-06
申请号：US17365992
申请日：2021-07-01
Applicant: Delta Electronics (Shanghai) Co., Ltd.
Inventor： Haibin SONG , Jian ZHOU , Hairui XU , Daofei XU , Jinfa ZHANG
Abstract: Disclosed are a voltage switching circuit and a power adapter having the same. The voltage switching circuit comprises a first switching circuit having a first terminal receiving a first voltage from a first converter, and a second switching circuit having a first terminal receiving a second voltage from a second converter. Second terminals of the first and second switching circuits are electrically connected to form a switching terminal for outputting an output voltage. When the output voltage is required to be switched from the first voltage to the second voltage, the first switching circuit is controlled to be turned off and then the second switching circuit is controlled to be turned on, and when a voltage at the first terminal of the second switching circuit is higher than a preset voltage, the second converter is shut down or kept off.
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公开(公告)号：US20210315112A1
公开(公告)日：2021-10-07
申请号：US17216804
申请日：2021-03-30
Applicant: Delta Electronics (Shanghai) CO., LTD
Inventor： Haibin SONG , Jian ZHOU , Daofei XU , Jinfa ZHANG
Abstract: A power adapter includes a first output port, a second output port, a motherboard, a first flyback power module, a second flyback power module, a bus capacitor and an EMI module. The first flyback power module has a first circuit board and is electrically connected to the first output port. The second flyback power module has a second circuit board and is electrically connected to the second output port. The EMI module has a third circuit board and is arranged on the motherboard. The first circuit board and the second circuit board are arranged in parallel with each other, and are arranged substantially perpendicular to the motherboard on a first side of the motherboard.
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公开(公告)号：US20210313889A1
公开(公告)日：2021-10-07
申请号：US17158278
申请日：2021-01-26
Applicant: Delta Electronics (Shanghai) CO., LTD
Inventor： Jian ZHOU , Haibin SONG , Daofei XU , Jinfa ZHANG
Abstract: The present disclosure relates to an adapter. The adapter includes an input port, a first output port and a second output port, and the adapter further includes: a rectifier circuit having an input terminal being connected to the input port of the adapter; a bus capacitor connected to an output terminal of the rectifier circuit in parallel; a first flyback converter having an input terminal connected to the bus capacitor and an output terminal coupled to the first output port; and a second flyback converter having an input terminal connected to the bus capacitor and an output terminal coupled to the second output port.
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Patent Agency Ranking
公开(公告)号：US20180159437A1
公开(公告)日：2018-06-07
申请号：US15662301
申请日：2017-07-28
Applicant: Delta Electronics (Shanghai) Co.,Ltd.
Inventor： Haibin SONG , Daofei XU , Jinfa ZHANG , Jian ZHOU , Qi FU , Leyang YANG
CPC classification number: H02M3/33592 , H02M1/083 , H02M2001/0009 , H02M2001/0058
Abstract: The present invention discloses a control method and a control apparatus for a Flyback circuit. The Flyback circuit includes a primary switch, a secondary rectifier unit, a transformer and an output capacitor. The secondary rectifier unit includes a first terminal and a second terminal, which are electrically connected to the transformer and the output capacitor, respectively. In the control method for a Flyback circuit, after the secondary rectifier unit is controlled to be turned on once or twice according to the input voltage and/or output power of the Flyback, the primary switch is turned on to achieve the zero-voltage-switching. According to the invention, the zero-voltage-switching (ZVS) of the primary switch can be achieved under the entire input voltage range and the entire load range without adding additional power devices.
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7.发明公开公开(公告)号：US20240231800A1
公开(公告)日：2024-07-11
申请号：US18468740
申请日：2023-09-18
Applicant: Delta Electronics (Shanghai) Co., Ltd.
Abstract: Provided are a method for online updating a program of a network power supply, a network power supply and a communication system. The method includes: receiving cipher text of a to-be-updated program sent from a system side, where the cipher text of the to-be-updated program is generated by encrypting a to-be-updated program with a preset key; performing verification, according to a key pre-stored in the network power supply, on the cipher text of the to-be-updated program, to obtain a verification result; and decrypting the cipher text of the to-be-updated program and updating the to-be-updated program according to a decrypted program, if the verification result shows that the verification is passed.
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公开(公告)号：US20210313897A1
公开(公告)日：2021-10-07
申请号：US17212056
申请日：2021-03-25
Applicant: Delta Electronics (Shanghai) CO., LTD
Inventor： Jian ZHOU , Haibin SONG , Daofei XU , Jinfa ZHANG
Abstract: A power adapter, includes: a transformer, including a primary winding and a secondary winding; a primary circuit, including a primary main switch, electrically coupled to the primary winding; a secondary circuit, including a first switch unit and a second switch unit; a first end of the first switch unit and a first end of the second switch unit are coupled to the secondary winding of the transformer, and a second end of the first switch unit and a second end of the second switch unit connected to a first output port and a second output port, respectively; a control circuit, configured to detect output voltages of the first output port and the second output port, and controlling the primary main switch, the first switch unit and the second switch unit to adjust the output voltages of the first output port and the second output port.
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公开(公告)号：US20170331378A1
公开(公告)日：2017-11-16
申请号：US15462907
申请日：2017-03-19
Applicant: Delta Electronics (Shanghai) Co., Ltd.
Inventor： Hai-Bin SONG , Jin-Fa ZHANG , Dao-Fei XU , Jian ZHOU , Qi FU , Xiao-Jun CHEN , Jian-Wei SONG
Abstract: A power adaptor includes a main electric unit, a transformer unit and a bus capacitor unit. The main electric unit is disposed on a first surface. The transformer unit is configured on the main electric unit and disposed on a second surface. The first surface is perpendicular to the second surface. The main electric unit and the transformer unit form a containing space. The bus capacitor unit includes at least one bus capacitor. The bus capacitor unit is disposed in the containing space.
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10.发明申请CONTROL DEVICE, CONTROL METHOD OF POWER CONVERTER AND SWITCHING POWER SUPPLY 有权控制装置，电源转换器和开关电源的控制方法公开(公告)号：US20150280575A1
公开(公告)日：2015-10-01
申请号：US14518752
申请日：2014-10-20
Applicant: DELTA ELECTRONICS (SHANGHAI) CO., LTD.
Inventor： Haibin SONG , Yuanqiang GU , Jian ZHOU , Daofei XU
IPC: H02M3/335
CPC classification number: H02M3/33507 , H02M1/32 , H02M3/156 , H02M2001/0009 , H02M2001/0025 , Y02B70/1425 , Y02B70/1433
Abstract: The disclosure relates to a control device, a control method of a power converter and a switching power supply using the control device. The control device of the power converter includes: a first control unit, which is coupled to the power converter to detect an output voltage of the power converter and is configured to generate a first control signal based on the output voltage; a variable resistor unit, which is connected to an output terminal of the first control unit to receive the first control signal and is configured to generate a resistance value based on the first control signal; and a second control unit, which is connected to the variable resistor unit and is configured to output a second control signal in order to control operations of a switch unit of the power converter.
Abstract translation: 本公开涉及控制装置，电力转换器的控制方法和使用该控制装置的开关电源。 功率转换器的控制装置包括：第一控制单元，其耦合到功率转换器以检测功率转换器的输出电压，并且被配置为基于输出电压产生第一控制信号; 可变电阻器单元，其连接到第一控制单元的输出端以接收第一控制信号，并且被配置为基于第一控制信号产生电阻值; 以及第二控制单元，其连接到所述可变电阻器单元，并且被配置为输出第二控制信号，以便控制所述功率转换器的开关单元的操作。
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