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公开(公告)号：US11949340B2
公开(公告)日：2024-04-02
申请号：US16953368
申请日：2020-11-20
Applicant: DELTA ELECTRONICS, INC.
Inventor： Hai-Bin Song , Qi Fu , Jian Zhou , Dao-Fei Xu , Jin-Fa Zhang
CPC classification number: H02M3/33576 , H02M3/33507 , H02M1/0032 , H02M3/01
Abstract: A conversion device includes a primary side circuit, a secondary side circuit, a transformer, and a control circuit. The primary side circuit includes a primary side switch and is configured to receive an input voltage. The secondary side circuit outputs an output voltage to a load. The transformer comprises a primary winding and a secondary winding, the primary winding is electrically coupled to the primary side circuit and the secondary winding electrically coupled to the secondary side circuit. The control circuit is configured to control a peak value of the current of the primary side switch, to be limited in a band range.
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公开(公告)号：US09748036B2
公开(公告)日：2017-08-29
申请号：US15459005
申请日：2017-03-15
Applicant: DELTA ELECTRONICS, INC.
Inventor： Zhuang Zuo , Jian Zhou , De-Zhi Jiao
CPC classification number: H01F27/289 , H01F27/24 , H01F27/2804 , H01F2027/2809
Abstract: A transformer includes a primary winding unit, a secondary winding unit and a magnetic core. The primary winding unit includes a first input primary winding part and a first shielding winding part. The first input primary winding part is electrically connected to at least one switch component, and the first input primary winding part is electrically connected to the first shielding winding part. The secondary winding unit is inductively coupled to the primary winding unit, and the first shielding part is disposed between the first input primary winding part and the secondary winding part. Then, the primary winding unit and the secondary winding unit are assembled to the magnetic core.
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公开(公告)号：US11025304B2
公开(公告)日：2021-06-01
申请号：US16367286
申请日：2019-03-28
Applicant: DELTA ELECTRONICS, INC.
Inventor： Shuailin Du , Jian Zhou , Yongkai Liao , Xuecong Xu , Kaining Tan
Abstract: The present disclosure provides a wireless power transmission system and a data transmission method, where the system includes: a first processing module configuring a first communication module according to a block of first preset configuration information, output a first digital signal according to the block of first preset configuration information, and input the first digital signal to the driving module and a second processing module detecting a power signal of the second circuit, obtaining a block of second preset configuration information according to the power signal, and configuring the second communication module according to the block of second preset configuration information. The wireless power transmission system and the data transmission method provided in the present disclosure reduce structural complexity of the device in the case that one-to-one communications is realized.
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公开(公告)号：US10651749B2
公开(公告)日：2020-05-12
申请号：US16238533
申请日：2019-01-03
Applicant: DELTA ELECTRONICS, INC.
Inventor： Hai-Bin Song , Dao-Fei Xu , Jian Zhou , Le-Yang Yang , Qi Fu , Jin-Fa Zhang
IPC: H02M3/335
Abstract: A converter includes a transformer, a main switch, an active clamping circuit, a synchronous rectifying switch and a processing circuit. The transformer includes a primary winding and a secondary winding. The main switch is coupled to the primary winding. The active clamping circuit clamps the voltage across the main switch when it is OFF. The active clamping circuit includes an auxiliary switch. The synchronous rectifying switch is coupled to the secondary winding. The processing circuit determines whether the rectifying switch is in a main conducting period or a sub conducting period according to a first voltage signal across the rectifying switch and at least one detecting signal from the converter, and generates a driving signal to control the synchronous rectifying switch accordingly.
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公开(公告)号：US11264914B2
公开(公告)日：2022-03-01
申请号：US17157948
申请日：2021-01-25
Applicant: DELTA ELECTRONICS, INC.
Inventor： Hai-Bin Song , Qi Fu , Jian Zhou , Dao-Fei Xu , Jin-Fa Zhang
Abstract: A converter includes a transformer, an active clamp circuit, a primary side switch, a secondary side switch, a load detection circuit, a state detection circuit and a control circuit. The active clamp circuit is electrically coupled to the primary winding of the transformer, and includes a clamp switch. The primary side switch is electrically coupled to the primary winding and a primary ground terminal. The secondary side switch is electrically coupled to a secondary winding of the transformer and a load. The control circuit outputs a control signal to turn on or turn off the clamp switch. The control circuit sets a blanking time according to the load state signal, such that the clamp switch is turned on when a drain-source voltage of the primary side switch is at a peak value of a resonance after the blanking time starting from the reference time point.
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Patent Agency Ranking
公开(公告)号：US20140347159A1
公开(公告)日：2014-11-27
申请号：US14015999
申请日：2013-08-30
Applicant: DELTA ELECTRONICS, INC.
Inventor： Zhuang Zuo , Jian Zhou , De-Zhi Jiao
IPC: H01F27/36
CPC classification number: H01F27/289 , H01F27/24 , H01F27/2804 , H01F2027/2809
Abstract: A transformer includes a primary winding unit, a secondary winding unit and a magnetic core. The primary winding unit includes a first input primary winding part and a first shielding winding part. The first input primary winding part is electrically connected to at least one switch component, and the first input primary winding part is electrically connected to the first shielding winding part. The secondary winding unit is inductively coupled to the primary winding unit, and the first shielding part is disposed between the first input primary winding part and the secondary winding part. Then, the primary winding unit and the secondary winding unit are assembled to the magnetic core.
Abstract translation: 变压器包括初级绕组单元，次级绕组单元和磁芯。 初级绕组单元包括第一输入初级绕组部分和第一屏蔽绕组部分。 第一输入初级绕组部电连接到至少一个开关部件，第一输入初级绕组部分电连接到第一屏蔽绕组部分。 次级绕组单元电感耦合到初级绕组单元，第一屏蔽部分设置在第一输入初级绕组部分和次级绕组部分之间。 然后，初级绕组单元和次级绕组单元组装到磁芯上。
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公开(公告)号：US10938312B2
公开(公告)日：2021-03-02
申请号：US16835331
申请日：2020-03-31
Applicant: DELTA ELECTRONICS, INC.
Inventor： Hai-Bin Song , Qi Fu , Jian Zhou , Dao-Fei Xu , Jin-Fa Zhang
Abstract: A converter includes a transformer, a primary side switch, a load detection circuit, a state detection circuit and a control circuit. The transformer is configured to output a voltage to a load. The primary side switch is coupled to a primary winding and a primary ground terminal. The load detection circuit is configured to detect a load state of the load and output a load state signal. The state detection circuit is configured to detect a reference time point. The control circuit is configured to output a control signal to turn on or off the primary side switch. The control circuit further sets a blanking time according to the load state signal, such that the primary side switch is turned on when a drain-source voltage of the primary side switch is at a valley of the resonance after the blanking time starting from the reference time point.
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公开(公告)号：US10651746B2
公开(公告)日：2020-05-12
申请号：US15803861
申请日：2017-11-06
Applicant: DELTA ELECTRONICS, INC.
Inventor： Hai-Bin Song , Dao-Fei Xu , Jian Zhou , Le-Yang Yang , Qi Fu , Jin-Fa Zhang
Abstract: A converter includes a transformer, a main switch, an active clamping circuit, a synchronous rectifying switch and a processing circuit. The transformer includes a primary winding and a secondary winding. The main switch is coupled to the primary winding. The active clamping circuit clamps the voltage across the main switch when it is OFF. The active clamping circuit includes an auxiliary switch. The synchronous rectifying switch is coupled to the secondary winding. The processing circuit determines whether the rectifying switch is in a main conducting period or a sub conducting period according to a first voltage signal across the rectifying switch and at least one detecting signal from the converter, and generates a driving signal to control the synchronous rectifying switch accordingly.
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公开(公告)号：US10177668B2
公开(公告)日：2019-01-08
申请号：US15677007
申请日：2017-08-14
Applicant: DELTA ELECTRONICS, INC.
Inventor： Hai-Bin Song , Dao-Fei Xu , Jian Zhou , Le-Yang Yang , Qi Fu , Jin-Fa Zhang
Abstract: A converter includes a transformer, a main switch, an active clamp circuit, and a control circuit. The transformer includes a primary winding and a secondary winding, and is configured to receive an input voltage and output an output voltage to a load. The main switch is coupled between the primary winding and a primary ground terminal. The active clamp circuit includes an auxiliary switch and a clamp capacitor. The auxiliary switch is coupled to the clamp capacitor in series, and the active clamp circuit is coupled in parallel to the two terminals of the primary winding or the main switch, and is configured to clamp the voltage across the main switch when it is OFF. The control circuit outputs an auxiliary switch control signal to turn on the auxiliary switch when the voltage across the main switch is at its first peak of the resonant voltage.
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公开(公告)号：US10128760B2
公开(公告)日：2018-11-13
申请号：US14841729
申请日：2015-09-01
Applicant: DELTA ELECTRONICS, INC.
Inventor： Haibin Song , Jian Zhou
Abstract: A PCB planar transformer, comprising: at least one primary winding layer, each formed with a primary winding therein, wherein wire traces constituting the primary winding have a first horizontal width; at least one secondary winding layer, each formed with a secondary winding therein, wherein wire traces constituting the secondary winding have a second horizontal width; and at least one shielding layer, each located between the primary winding layer and the adjacent secondary winding layer, wherein the shielding layer is formed with a conductor therein, and the conductor in the shielding layer has a third horizontal width, wherein at least one of the first horizontal and the second horizontal width is smaller than the third horizontal width of the conductor in the shielding layer.
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