公开(公告)号：US20160141967A1

公开(公告)日：2016-05-19

申请号：US14879249

申请日：2015-10-09

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chao YAN ,  Liping SUN ,  Lihao YAN

IPC: H02M3/335

CPC classification number: H02M5/14 ,  H02M1/12 ,  H02M3/33561 ,  H02M3/33576 ,  H02M7/08 ,  H02M7/10 ,  H02M2001/007 ,  H02M2001/008

Abstract: Embodiments of the present disclosure provide a direct current (DC) power supply system, comprising: a medium voltage AC switchgear, configured to distribute a medium voltage three-phase AC received from an external supply for a next stage; a phase-shift transformer serving as the next stage, coupled to the medium voltage AC switchgear, and configured to lower the medium voltage three-phase received and output four or more groups of low voltage three-phase AC; and an uncontrolled rectifying circuitry, comprising a plurality of uncontrolled rectifiers configured to receive the four or more groups of low voltage three-phase AC respectively and output a low voltage DC; wherein the four or more groups of low voltage three-phase AC have a predetermined phase difference between each other.

Abstract translation: 本公开的实施例提供了一种直流（DC）电源系统，包括：中压交流开关装置，被配置为分配从下一级的外部电源接收的中压三相AC; 用作下一级的相移变压器，耦合到中压AC开关装置，并且被配置为降低中压三相接收和输出四组或更多组低压三相AC; 以及不受控制的整流电路，包括多个不受控整流器，其被配置为分别接收所述四组或更多组低压三相AC并输出低电压DC; 其中所述四组或更多组低电压三相AC彼此之间具有预定的相位差。

公开(公告)号：US20140092634A1

公开(公告)日：2014-04-03

申请号：US13771690

申请日：2013-02-20

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chao YAN ,  Lihao YAN

IPC: H02M3/335

CPC classification number: H02M3/33507 ,  H02M3/3376 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491 ,  Y02P80/112

Abstract: The present application provides a mixed control method for a resonant converter, a resonant converter system and a mixed controller. When the resonant converter operates in a case where a voltage gain is less than a predetermined value, the method includes: setting a mixed control start frequency, a mixed control stop frequency and a slope of a phase-shifting angle; detecting an operating frequency of the converter; calculating a time delay of phase shifting according to the slope, the mixed control start frequency, the mixed control stop frequency and a resonant frequency of the resonant converter; and according to the time delay, the mixed control start and stop frequencies, generating a control signal to adjust the operating frequency and the phase-shifting angle of the resonant converter. The present application can realize a relatively low voltage gain and a small circuit loss, thereby the circuit efficiency may be improved.

Abstract translation: 本申请提供了一种用于谐振转换器，谐振转换器系统和混合控制器的混合控制方法。 当谐振转换器在电压增益小于预定值的情况下工作时，该方法包括：设置混合控制开始频率，混合控制停止频率和相移角度的斜率; 检测转换器的工作频率; 根据斜率，混合控制起始频率，混合控制停止频率和谐振变换器的谐振频率计算相移的时间延迟; 并根据时间延迟，混合控制启动和停止频率，产生一个控制信号来调节谐振转换器的工作频率和相移角。 本申请可以实现相对低的电压增益和小的电路损耗，从而可以提高电路效率。

公开(公告)号：US20160294295A1

公开(公告)日：2016-10-06

申请号：US15064687

申请日：2016-03-09

Applicant: DELTA ELECTRONICS,INC.

Inventor： Jianhong ZENG ,  Chao YAN ,  Haoyi YE ,  Peiqing HU

IPC: H02M3/335 ,  H02M1/42

CPC classification number: H02M3/1588 ,  H02M3/33592 ,  H02M3/337 ,  H02M2001/0058 ,  H02M2001/007 ,  Y02B70/1466 ,  Y02B70/1475 ,  Y02B70/1491

Abstract: A power converter device, includes switching devices and a controller, to realize conversion between power supplies by controlling on and off the switching devices via the controller. The switching devices include: at least one normally-on type switching device and at least one normally-off type switching device both having an operation frequency greater than 1 kHz and connected in series. The controller outputs a first and second control signal to correspondingly control the normally-on type switching device and the normally-off type switching device to control the normally-off type switching device to be turned on after the normally-on type switching device to be turned off. The present disclosure uses the normally-off type switching device originally disposed in the circuit, having a voltage blocking ability, to realize directly usage of the normally-on type switching device to improve efficiency and power density of switching power supply.

Abstract translation: 一种电力转换装置，包括开关装置和控制器，通过经由控制器控制开关装置的导通和关断来实现电源之间的转换。 开关装置包括：至少一个常开型开关装置和至少一个常开型开关装置，其均具有大于1kHz的工作频率并串联连接。 控制器输出第一和第二控制信号以相应地控制常开型开关装置和常开型开关装置，以便在常开型开关装置之后控制常开型开关装置导通 关掉。 本公开使用原来设置在具有电压阻断能力的电路中的常开型开关装置，以直接使用常开型开关装置，以提高开关电源的效率和功率密度。

公开(公告)号：US20160190940A1

公开(公告)日：2016-06-30

申请号：US14958898

申请日：2015-12-03

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chao YAN ,  Yi-Qing YE ,  Zhi-Zhen LIAN

IPC: H02M3/335

CPC classification number: H02M3/285 ,  H02M2001/0058 ,  Y02B70/1491

Abstract: A method for controlling a resonant DC/DC power converting circuit is provided. The resonant DC/DC power converting circuit having a converter output and a converter input comprises at least two converters having similar structures and outputs connected in parallel as said converter output, and a controller. Each converter comprises a full-bridge inverter unit and a resonant unit. The full-bridge inverter unit is configured with at least four switches. The resonant unit is coupled with said full-bridge inverter unit. The controller outputs two groups of driving control signals to drive four switches in said two converters respectively. The method comprises: making said two converters operate at the same frequency and interleave with preset phase shift; and making two of driving control signals in one group interleave with preset angle to reduce output current of said converter corresponding controlled thereby, when output currents of said two converters are not approximately equal.

Abstract translation: 提供一种用于控制谐振DC / DC功率转换电路的方法。 具有转换器输出和转换器输入的谐振DC / DC功率转换电路包括具有与所述转换器输出并联连接的相似结构和输出的至少两个转换器和控制器。 每个转换器包括全桥逆变器单元和谐振单元。 全桥逆变器单元配置有至少四个开关。 谐振单元与所述全桥逆变器单元耦合。 控制器输出两组驱动控制信号，分别驱动所述两个转换器中的四个开关。 该方法包括：使所述两个转换器以相同的频率工作并以预置的相移进行交织; 并且当所述两个转换器的输出电流不近似相等时，使一组中的两个驱动控制信号以预设角度交错以减小对应的所述转换器的输出电流。

公开(公告)号：US20160181865A1

公开(公告)日：2016-06-23

申请号：US14953001

申请日：2015-11-26

Applicant: DELTA ELECTRONICS, INC.

Inventor： Pei-Qing HU ,  Chao YAN ,  Jian-Hong ZENG

IPC: H02J9/06 ,  H02J7/00 ,  H02M3/335

CPC classification number: H02J9/061 ,  H02J7/0068 ,  H02M1/12 ,  H02M3/33507 ,  H02M3/33569 ,  H02M2001/0058 ,  Y02B70/1491

Abstract: A power supply system includes a first converting stage, a second converting stage, and a third converting stage. The first converting stage is configured to generate a first voltage according to a first input voltage. The second converting stage is coupled to the first converting stage in series, and includes a first non-regulated power converter and a second non-regulated power converter. The first non-regulated power converter is configured to generate a second voltage according to the first voltage. The second non-regulated power converter is configured to generate a third voltage according to the second voltage. The second voltage is higher than the third voltage, and a varying range of the second voltage is wider than a varying range of the third voltage. The third converting stage is configured to generate a first output voltage according to the third voltage.

Abstract translation: 电源系统包括第一转换级，第二转换级和第三转换级。 第一转换级被配置为根据第一输入电压产生第一电压。 第二转换级串联耦合到第一转换级，并且包括第一非稳压功率转换器和第二非调节功率转换器。 第一非调节功率转换器被配置为根据第一电压产生第二电压。 第二非调节功率转换器被配置为根据第二电压产生第三电压。 第二电压高于第三电压，并且第二电压的变化范围比第三电压的变化范围宽。 第三转换级被配置为根据第三电压产生第一输出电压。

公开(公告)号：US20210367509A1

公开(公告)日：2021-11-25

申请号：US17444386

申请日：2021-08-04

Applicant: Delta Electronics, Inc.

Inventor： Chao YAN ,  Liping Sun

IPC: H02M1/44 ,  H02M3/158 ,  H02M7/5387 ,  H02M1/12

Abstract: The present disclosure provides power semiconductor module, comprising at least three non-jumping power terminals at a non-jumping potential, wherein multiple power semiconductors and at least one first capacitor are integrated within a package and electrically connected between a first non-jumping power terminal and a second non-jumping power terminal of the at least three non-jumping power terminals; and at least one jumping power terminal at a jumping potential. A first jumping power terminal of the at least one jumping power terminal is electrically connected to one terminal of a power inductor and a third non-jumping power terminal of the at least three non-jumping power terminals is electrically connected to the other terminal of the power inductor; wherein at least one second capacitor is electrically connected between the third non-jumping power terminal and at least one of other non-jumping power terminals.

公开(公告)号：US20200099289A1

公开(公告)日：2020-03-26

申请号：US16558162

申请日：2019-09-02

Applicant: Delta Electronics, Inc.

Inventor： Chao YAN ,  Liping SUN

IPC: H02M1/44

Abstract: The present disclosure provides power module, comprising at least three non-jumping power terminals at a non-jumping potential, wherein multiple power devices and at least one first capacitor are electrically connected between a first non-jumping power terminal and a second non-jumping power terminal of the at least three non-jumping power terminals; and at least one jumping power terminal at a jumping potential. A first jumping power terminal of the at least one jumping power terminal is electrically connected to one terminal of a power inductor and a third non-jumping power terminal of the at least three non-jumping power terminals is electrically connected to the other terminal of the power inductor; wherein at least one second capacitor is electrically connected between the third non-jumping power terminal and at least one of other non-jumping power terminals.

公开(公告)号：US20160065069A1

公开(公告)日：2016-03-03

申请号：US14792628

申请日：2015-07-07

Applicant: DELTA ELECTRONICS, INC.

Inventor： Li-Ping SUN ,  De-Sheng GUO ,  Chao YAN

IPC: H02M3/158

CPC classification number: H02M3/158 ,  H02M7/487 ,  H02M2001/0009 ,  H02M2001/346 ,  Y02B70/1491

Abstract: A power converting circuit includes a converter. The converter receives and converts an input power to provide power for a load. The converter includes a power storage unit, a switch unit, a capacitor unit, and a current sampling unit. The power storage unit includes input and output terminals. The switch unit includes first and second switches, which are series connected at a common terminal, and the common terminal is coupled to the output terminal of the power storage unit. The capacitor unit includes first and second capacitors. The first capacitor and the switch unit are parallel connected to form a capacitor-switch parallel structure. The second capacitor capacitance is more than ten times larger than the first capacitor capacitance. The current sampling unit and the capacitor-switch parallel structure are series connected to form a capacitor-sampling unit series structure. The capacitor-sampling unit series structure and the second capacitor are parallel connected.

Abstract translation: 电力转换电路包括转换器。 转换器接收并转换输入电源以为负载提供电力。 转换器包括蓄电单元，开关单元，电容器单元和电流采样单元。 蓄电单元包括输入和输出端子。 开关单元包括在公共端子串联连接的第一和第二开关，并且公共端子耦合到蓄电单元的输出端子。 电容器单元包括第一和第二电容器。 第一电容器和开关单元并联连接形成电容器开关并联结构。 第二电容电容比第一电容电容大十倍以上。 电流采样单元和电容开关并联结构串联连接形成一个电容采样单元串联结构。 电容器采样单元串联结构和第二电容并联。

公开(公告)号：US20140146573A1

公开(公告)日：2014-05-29

申请号：US14056965

申请日：2013-10-18

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chao YAN ,  Mi CHEN

IPC: H02M3/335

CPC classification number: H02M3/33569 ,  H02M3/33507 ,  H02M3/3376 ,  H02M2001/0058 ,  Y02B70/1491

Abstract: The DC-DC converter includes a first bridge and a second bridge. The first bridge includes a first switch and a second switch, whereas the second bridge includes a third switch and a fourth switch. The second bridge is in parallel connection with the first bridge. The second switch is in series connection with the first switch, and the fourth switch is in series connection with the third switch. The DC-DC converter switches between a first mode and a second mode based on a detection signal. Further, a method for controlling the DC-DC converter is also disclosed herein.

Abstract translation: DC-DC转换器包括第一桥和第二桥。 第一桥包括第一开关和第二开关，而第二桥包括第三开关和第四开关。 第二座桥与第一座桥并联。 第二开关与第一开关串联连接，第四开关与第三开关串联连接。 DC-DC转换器基于检测信号在第一模式和第二模式之间切换。 此外，还公开了一种用于控制DC-DC转换器的方法。

公开(公告)号：US20170103841A1

公开(公告)日：2017-04-13

申请号：US15279740

申请日：2016-09-29

Applicant: Delta Electronics, Inc.

Inventor： Chao YAN ,  Ruifei TIAN

IPC: H01F27/20 ,  H01F27/24 ,  H01F27/32

CPC classification number: H01F27/20 ,  H01F27/085 ,  H01F27/22 ,  H01F27/24 ,  H01F27/325

Abstract: A magnetic structure includes at least one bobbin and a core. Each of the bobbin has at least one winding portion in which a through passage is provided along its longitudinal direction, the core has at least one column, the column is received in the through passage so that a heat dissipation space is formed between an outer wall of the column and an inner wall of the through passage. In the magnetic structure according to the present disclosure, during the operation of the magnetic structure, the heat generated from the column and from an inner layer of a coil wound on the winding portion both can be quickly dissipated through the heat dissipation space, and thus the heat dissipation efficiency of the magnetic structure according to the present disclosure is improved.