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1. 发明申请

US20220368219A1 POWER MODULE AND METHOD FOR CONTROLLING THE SAME, THREE-PHASE POWER SYSTEM AND METHOD FOR CONTROLLING THE SAME 有权
公开(公告)号：US20220368219A1
公开(公告)日：2022-11-17
申请号：US17658658
申请日：2022-04-11
申请人： Delta Electronics (Shanghai) Co.,Ltd.
发明人： Hong LIU , Wen ZHANG , Dan WANG , Cheng LU , Hongyang WU
IPC分类号： H02M1/42 , H02M3/335
摘要： A method for controlling a power module includes: configuring N cells in cascade connection, where N is a positive integer equal to or greater than 2, each cell comprising a bidirectional switching unit and a non-controlled rectifier bridge, the bidirectional switching unit being connected to central points of two bridge arms of the non-controlled rectifier bridge; controlling each cell to operate in one of three operating modes of a modulation mode, a bypass mode and a non-controlled rectifying mode, wherein in the N cells, m1 cells operate in the bypass mode, where 0≤m1≤M1, m2 cells operate in the non-controlled rectifying mode, where 0≤m2≤M2, m3 cells operate in the modulation mode and can realize power factor correction, where 0

2. 发明申请

US20220311330A1 PFC CIRCUIT, CONTROL METHOD THEREOF AND POWER CONVERSION DEVICE 有权
公开(公告)号：US20220311330A1
公开(公告)日：2022-09-29
申请号：US17656213
申请日：2022-03-23
申请人： Delta Electronics (Shanghai) Co.,Ltd.
发明人： Cheng LU , Hongyang WU , Wenfei HU
IPC分类号： H02M1/42 , H02M7/487 , H02M7/219
摘要： The application provides a method for controlling a PFC circuit including a diode bridge arm, DNPC bridge arm and capacitor group connected in parallel. The control method includes: switching working mode of the PFC circuit back and forth between first mode and third mode via second mode in each switching cycle when positive half cycle of a modulation wave is modulated, and switching working mode of the PFC circuit back and forth between sixth mode and fourth mode via fifth mode in each switching cycle when negative half cycle of the modulation wave is modulated. The durations of the second and fifth modes are as short as possible, thereby decreasing a current flowing into or out from midpoint of the capacitor group, and reducing voltage fluctuation at the midpoint. The application further provides a PFC circuit using the control method and a power conversion device having the PFC circuit.

3. 发明申请

US20220164512A1 DESIGN METHOD OF TRANSFORMER 有权
公开(公告)号：US20220164512A1
公开(公告)日：2022-05-26
申请号：US17456363
申请日：2021-11-23
申请人： Delta Electronics (Shanghai) Co., Ltd.
发明人： Liping SUN , Hongyang WU , Jianjun NI
IPC分类号： G06F30/367
摘要： A design method of a transformer repeats following steps until a preset condition is met: calculating an output voltage of each secondary winding according to a phase shift angle and a number of turns of the each secondary winding; obtaining a difference between output voltages of each secondary winding pair in a secondary winding set; adjusting the phase shift angle of at least one secondary winding in the secondary winding set; and obtaining a final number of turns for the each secondary winding according to a resultant phase shift angle corresponding to when the preset condition is met; where the preset condition is that the difference between the output voltages of any secondary winding pair in the secondary winding set is less than or equal to a preset threshold.

4. 发明申请

US20160322860A1 POWER DISTRIBUTION SYSTEM AND ELECTRICAL SYSTEM 审中-公开
标题翻译：电力分配系统和电气系统
公开(公告)号：US20160322860A1
公开(公告)日：2016-11-03
申请号：US15056373
申请日：2016-02-29
申请人： Delta Electronics (Shanghai) CO., LTD
发明人： Hongyang WU , Xiaoming CHEN , Feiqin HAO , Cheng LU , Tao GE
IPC分类号： H02J9/06
CPC分类号： H02J9/06 , H02J2009/068
摘要： A power distribution system is connected to a first power supply, a second power supply and an energy storage unit. The power distribution system includes: a selection switch, its movable terminal being connected to a load and selectively being electrically connected to its first fixed terminal; a first converter, its first terminal being electrically connected to the second power supply; a second converter, its first terminal being electrically connected to a second terminal of the first converter and electrically connected to the energy storage unit; a first switch, its first terminal being electrically connected to a second terminal of the second converter, and its second terminal being electrically connected to the first fixed terminal of the selection switch; and a second switch, its first terminal being electrically connected to the second terminal of the first switch, and its second terminal being electrically connected to the first power supply.
摘要翻译：配电系统连接到第一电源，第二电源和能量存储单元。配电系统包括：选择开关，其可动端子连接到负载并选择性地电连接到其第一固定端子; 第一转换器，其第一端子电连接到第二电源; 第二转换器，其第一端子电连接到第一转换器的第二端子并电连接到能量存储单元; 第一开关，其第一端子电连接到第二转换器的第二端子，并且其第二端子电连接到选择开关的第一固定端子; 和第二开关，其第一端子电连接到第一开关的第二端子，并且其第二端子电连接到第一电源。

5. 发明申请

US20230068964A1 DISPERSED CARRIER PHASE-SHIFTING METHOD AND SYSTEM 有权
公开(公告)号：US20230068964A1
公开(公告)日：2023-03-02
申请号：US17817656
申请日：2022-08-05
申请人： Delta Electronics (Shanghai) Co.,Ltd.
发明人： Hong LIU , Wen ZHANG , Wenfei HU , Cheng LU , Hongyang WU
IPC分类号： H03K5/01 , H03K5/00
摘要： The application provides a dispersed carrier phase-shifting method and system. The method includes connecting at least two power modules to form a modular system; each power module including a control module for sampling at least twice a common state variate, signs of slopes of the common state variate at a first and second sampling time are opposite, and a reference time of the first sampling time for each control module is the same; and regulating a carrier frequency of the power module according to a relative size between a sampled values at the first and second sampling time. According to embodiments herein, carrier phase-shifting of modular system may be implemented without communication between respective modules. Under closed-loop control, optimal carrier phase-shifting can be automatically achieved under various duty ratios, thereby having good stability.

6. 发明申请

US20200336000A1 CHARGING DEVICE AND CHARGING CONTROL METHOD 审中-公开
公开(公告)号：US20200336000A1
公开(公告)日：2020-10-22
申请号：US16851073
申请日：2020-04-16
申请人： Delta Electronics (Shanghai) Co., Ltd.
发明人： Chao YAN , Hongyang WU , Liping SUN , Yiwen LU
IPC分类号： H02J7/04 , H02J3/18 , H02J3/01
摘要： The present disclosure provides a charging device and a charging control method, and the device includes a transformer, a charger, an energy regulator, and a controller; the primary winding of the transformer is connected to the power distribution network, the power distribution network provides a first input power for the charging device; the secondary winding of the transformer is connected to an AC side of the charger and the AC side of the energy regulator respectively; the power required on the AC side of the charger is a second input power; the controller is connected to the energy regulator to control the AC side current of the energy regulator, so as to compensate the power difference between the second input power and the first input power.

7. 发明申请

US20200335989A1 CENTRALIZED CHARGING CABINET 审中-公开
公开(公告)号：US20200335989A1
公开(公告)日：2020-10-22
申请号：US16851089
申请日：2020-04-16
申请人： Delta Electronics (Shanghai) Co., Ltd.
发明人： Hongyang WU , Jian ZHU , Liping SUN , Chao YAN , Qianfeng LI
IPC分类号： H02J7/00 , H05K7/20 , B60L53/60 , B60L53/302 , B60L53/30
摘要： The present disclosure provides a centralized charging cabinet, including: a charging cabinet, provided with an isolation area and a charging area therein; an isolation transformer, provided in the isolation area; and at least one charging unit, provided in the charging area, where each of the charging unit is electrically connected to a secondary winding of the isolation transformer through a plurality of first connection structures, and the plurality of first connection structures are located at a back region of the charging area. In the centralized charging cabinet, the isolation transformer is provided in the isolation area inside the charging cabinet, the charging unit is provided in the charging area inside the charging cabinet, which realizes a centralized layout of the isolation transformer and the charging unit and improves the space utilization.

8. 发明申请

US20150349761A1 POWER MODULE 有权
标题翻译：电源模块
公开(公告)号：US20150349761A1
公开(公告)日：2015-12-03
申请号：US14681712
申请日：2015-04-08
申请人： Delta Electronics (Shanghai) CO., LTD
发明人： Weiyi FENG , Lizhi XU , Weiqiang ZHANG , Hongyang WU
IPC分类号： H03K5/08
CPC分类号： H03K5/08 , H02M1/34 , H02M7/003 , H02M7/487
摘要： A power module includes: a base plane; at least one switch chip assembled on the base plane; and a voltage clamping circuit for clamping a voltage of the at least one switch chip and comprising components of a charging loop, wherein a projection of at least one of the components of the charging loop on the base plane is located within at least one first circle, defined with a center point of the at least one switch chip as a center of the first circle, and with a product of a maximum of a length and a width of the at least one switch chip and a first coefficient, as a radius of the first circle.
摘要翻译：功率模块包括：基本平面; 组装在基面上的至少一个开关芯片; 以及用于钳位所述至少一个开关芯片的电压并且包括充电回路的部件的电压钳位电路，其中所述充电回路的至少一个部件在所述基座平面上的突起位于至少一个第一圆，其中所述至少一个开关芯片的中心点作为所述第一圆的中心，并且具有所述至少一个开关芯片的长度和宽度的最大值与第一系数的乘积，作为所述第一系数的半径第一圈。

9. 发明申请

US20230017075A1 POWER SUPPLY UNIT AND LOOP POWER SUPPLY SYSTEM 有权
公开(公告)号：US20230017075A1
公开(公告)日：2023-01-19
申请号：US17809900
申请日：2022-06-30
申请人： Delta Electronics (Shanghai) Co.,Ltd.
发明人： Weiqiang ZHANG , Xingkuan GUO , Hongyang WU
IPC分类号： H02M3/335 , H02M1/00 , H02M7/217
摘要： The disclosure provides a power supply unit, including: a first high-frequency isolating converter including a first end connected to a first voltage, a second end and a third end; and a second high-frequency isolating converter including a first end connected to a second voltage, a second end and a third end, wherein the second end of the second high-frequency isolating converter and the second end of the first high-frequency isolating converter are connected in parallel to a first end of a first load, and the third end of the second high-frequency isolating converter and the third end of the first high-frequency isolating converter are connected in parallel to a second end of the first load. The disclosure further provides a loop power supply system having the power supply unit.

10. 发明申请

US20210362611A1 CHARGING SYSTEM 有权
公开(公告)号：US20210362611A1
公开(公告)日：2021-11-25
申请号：US17325213
申请日：2021-05-20
申请人： Delta Electronics (Shanghai) Co., Ltd.
发明人： Liping SUN , Hongyang WU , Jianjun NI , Teng LIU
IPC分类号： B60L53/12 , H02J50/40
摘要： A charging system includes a multi-pulse transformer, n AC-DC conversion units, n power supply terminals and a charging scheduling apparatus. A plurality of secondary windings of the multi-pulse transformer form n winding pairs. The n AC-DC conversion units are coupled to the n winding pairs in a one-to-one correspondence. The n power supply terminals are coupled to the n AC-DC conversion units in a one-to-one correspondence. The charging scheduling apparatus are configured to detect the number of charging devices and states of the power supply terminals, and determine M target winding pairs from the n winding pairs for supplying power to the charging devices. The M target winding pairs include a winding pair distributed close to a first end of the magnetic core and a winding pair distributed close to a second end of the magnetic core.

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