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1. 发明授权

US11601042B2 Multi-phase AC/DC converter 有权
公开(公告)号：US11601042B2
公开(公告)日：2023-03-07
申请号：US17209073
申请日：2021-03-22
申请人： Delta Electronics, Inc.
发明人： Chi Zhang , Zhiyu Shen , Yungtaek Jang , Sheng-Hua Li , Ruxi Wang , Peter Mantovanelli Barbosa
IPC分类号： H02M1/12 , H02M1/42 , H02M7/217 , H02M7/219 , H02M7/23
摘要： The present disclosure provides a three-phase AC/DC converter aiming for low input current harmonic. The converter includes an input stage for receiving a three-phase AC input voltage, an output stage for at least one load, and one or more switching conversion stages, each stage including a plurality of half bridge modules. The switches in each module operate with a substantially fixed 50% duty cycle and are connected in a specific pattern to couple a DC-link and a neutral node of the input voltage. The AC/DC converter further includes one or more controllers adapted to vary the switching frequency of the switches in the switching conversion stages based on at least one of load voltage, load current, input voltage, and DC-link voltage. The converter can also include one or more decoupling stages, such as, inductive components adapted to decouple the output stage from the switching conversion stages.

2. 发明授权

US11581885B2 Pre-charge control circuit and method of controlling the same 有权
公开(公告)号：US11581885B2
公开(公告)日：2023-02-14
申请号：US17011370
申请日：2020-09-03
申请人： DELTA ELECTRONICS, INC.
发明人： Li-Ching Yang , Wen-Lung Huang , Sheng-Hua Li
IPC分类号： H03K17/0812 , H02M3/158
摘要： A pre-charge control circuit includes a control unit, a conversion unit, and a pre-charge switch. The control unit provides a control signal according to a PWM signal, and the conversion unit provides a control voltage according to the control signal. The pre-charge switch adjusts a magnitude of the current flowing through the input path of the electronic circuit according to the control voltage.

3. 发明授权

US11368098B2 Power system with communication function applied to solid state transformer structure and communication module applied to solid state transformer structure 有权
公开(公告)号：US11368098B2
公开(公告)日：2022-06-21
申请号：US16929867
申请日：2020-07-15
申请人： DELTA ELECTRONICS, INC.
发明人： Sheng-Hua Li
IPC分类号： H02M5/42 , H02M7/04 , H02M1/00
摘要： A power system with communication function applied to a solid state transformer structure includes a plurality of conversion units, a bus path, a plurality of coupling units, and a control module. The conversion units are coupled to the bus path and the coupling units, and the coupling units are coupled to the control module. Each coupling unit is correspondingly coupled to a control unit of each conversion unit. A first-connected coupling unit of the coupling units is coupled to the control module.

4. 发明申请

US20160211768A1 POWER CONVERSION DEVICE AND CONTROLLING METHOD THEREOF 有权
标题翻译：电力转换装置及其控制方法
公开(公告)号：US20160211768A1
公开(公告)日：2016-07-21
申请号：US14930011
申请日：2015-11-02
申请人： DELTA ELECTRONICS, INC.
发明人： Sheng-Hua Li
IPC分类号： H02M7/537
CPC分类号： H02M3/04 , H02M2001/0032 , Y02B70/16
摘要： A power conversion device includes a power supplying terminal, a switching converter, a signal injector, a coupler circuit, a detecting circuit and a controller. After an input voltage is converted into an output voltage by the switching converter, the output voltage is outputted to a load through the power supplying terminal. The signal injector provides a signal. When the load is connected with the power supplying terminal, an operating parameter at the first end of the coupler circuit has a first variation value in response to the signal. When the load is disconnected from the power supplying terminal, the operating parameter at the second end of the coupler circuit has a second variation value in response to the signal. According to the detecting result of the detecting circuit, a switching action of the switching element is selectively enabled or disabled by the controller.
摘要翻译：电力转换装置包括供电端子，开关转换器，信号注入器，耦合器电路，检测电路和控制器。在通过开关转换器将输入电压转换为输出电压之后，通过供电端子将输出电压输出到负载。信号注射器提供信号。当负载与供电端子连接时，耦合器电路的第一端的工作参数响应于该信号具有第一变化值。当负载与供电端子断开时，耦合器电路的第二端的操作参数响应于该信号具有第二变化值。根据检测电路的检测结果，开关元件的切换动作由控制器选择性地使能或禁止。

5. 发明申请

US20140118983A1 ASSEMBLING STRUCTURE OF INVERTER AND GROUND WIRE 审中-公开
标题翻译：逆变器和地线的组装
公开(公告)号：US20140118983A1
公开(公告)日：2014-05-01
申请号：US13789390
申请日：2013-03-07
申请人： DELTA ELECTRONICS, INC.
发明人： Sheng-Hua Li , Po-Hung Chen
IPC分类号： H05K7/12
CPC分类号： H05K7/1432
摘要： An assembling structure includes a ground wire, an inverter, a first fixing element, and a clamping device. The inverter includes a casing. The clamping device is disposed on the casing. The clamping device includes a first end, a second end, and a pressing part between the first end and the second end. The second end of the clamping device is previously fixed on the casing. After the ground wire is transferred through an entrance between the first end of the clamping device and the casing, the ground wire is clamped between the pressing part and the casing. Afterwards, by using the fixing element, the first end of the clamping device is fixed on the casing, the ground wire is fixed on the casing by the pressing part of the clamping device, and the inverter is fixed on the rack simultaneously.
摘要翻译：组装结构包括接地线，逆变器，第一固定元件和夹紧装置。逆变器包括壳体。夹紧装置设置在壳体上。夹紧装置包括第一端，第二端和在第一端和第二端之间的按压部。夹紧装置的第二端预先固定在外壳上。在接地线通过夹紧装置的第一端和壳体之间的入口传送之后，接地线被夹紧在按压部分和壳体之间。然后，通过使用固定元件，将夹紧装置的第一端固定在壳体上，通过夹紧装置的按压部将接地线固定在壳体上，同时将变频器固定在机架上。

6. 发明申请

US20230043969A1 CONNECTOR HAVING OPTICAL FIBER CONNECTION MECHANISM AND CONNECTOR ASSEMBLY THEREOF 有权
公开(公告)号：US20230043969A1
公开(公告)日：2023-02-09
申请号：US17451532
申请日：2021-10-20
申请人： Delta Electronics, Inc.
发明人： Sheng-Hua Li , Chun-Han Lin , Wen-Lung Huang
IPC分类号： G02B6/42
摘要： A connector for a system circuit board or a power module is provided. The connector includes a main body and an optical connection mechanism. The main body includes a first connecting terminal and a second connecting terminal. The first connecting terminal and the second connecting terminal are power contacts or signal contacts. The optical fiber connection mechanism is embedded within the main body. The optical fiber connection mechanism is disposed between the first connecting terminal and the second connecting terminal. Since the optical fiber connection mechanism is embedded within the main body, it is not necessary to specifically remove the optical fiber cable when the power module is detached from the cabinet. Moreover, the appearance of the product is more aesthetically-pleasing, and the maintaining speed and the product reliability are increased.

7. 发明授权

US11336192B2 Three-phase power apparatus with bidirectional power conversion 有权
公开(公告)号：US11336192B2
公开(公告)日：2022-05-17
申请号：US16675506
申请日：2019-11-06
申请人： DELTA ELECTRONICS, INC.
发明人： Wen-Lung Huang , Sheng-Hua Li
IPC分类号： H02M3/335 , H02M7/219 , H02M3/158 , H02J7/00 , H02J7/02 , B60L50/60 , B60L53/22
摘要： A three-phase power apparatus with bidirectional power conversion applied to charge a battery of an electric vehicle. The three-phase charging apparatus includes an AC-to-DC conversion unit, a first DC bus, a first DC-to-DC conversion unit, a second DC bus, and a second DC-to-DC conversion unit. The first DC bus is coupled to the AC-to-DC conversion unit. The first DC-to-DC conversion unit includes an isolated transformer, a resonant tank, a first bridge arm assembly, and a second bridge arm assembly. The first bridge arm assembly is coupled to the first DC bus and a primary side of the isolated transformer. The second bridge arm assembly is coupled a secondary side of the isolated transformer. The second DC bus is coupled to the second bridge arm assembly. The second DC-to-DC conversion unit is coupled to the second DC bus and the battery.

8. 发明授权

US11296609B2 Three-phase power apparatus with bidirectional power conversion 有权
公开(公告)号：US11296609B2
公开(公告)日：2022-04-05
申请号：US16675506
申请日：2019-11-06
申请人： DELTA ELECTRONICS, INC.
发明人： Wen-Lung Huang , Sheng-Hua Li
IPC分类号： H02M3/335 , H02M7/219 , H02M3/158 , H02J7/00 , H02J7/02 , B60L50/60 , B60L53/22
摘要： A three-phase power apparatus with bidirectional power conversion applied to charge a battery of an electric vehicle. The three-phase charging apparatus includes an AC-to-DC conversion unit, a first DC bus, a first DC-to-DC conversion unit, a second DC bus, and a second DC-to-DC conversion unit. The first DC bus is coupled to the AC-to-DC conversion unit. The first DC-to-DC conversion unit includes an isolated transformer, a resonant tank, a first bridge arm assembly, and a second bridge arm assembly. The first bridge arm assembly is coupled to the first DC bus and a primary side of the isolated transformer. The second bridge arm assembly is coupled a secondary side of the isolated transformer. The second DC bus is coupled to the second bridge arm assembly. The second DC-to-DC conversion unit is coupled to the second DC bus and the battery.

9. 发明授权

US09287801B2 Micro inverter with DC-to-AC converter and solar photovoltaic system having the same 有权
标题翻译：具有直流 - 交流转换器和太阳能光伏系统的微逆变器具有相同的功能
公开(公告)号：US09287801B2
公开(公告)日：2016-03-15
申请号：US14132319
申请日：2013-12-18
申请人： DELTA ELECTRONICS, INC.
发明人： Sheng-Hua Li
IPC分类号： H02M3/24 , H02M7/44 , H02J3/38 , H02J13/00 , H01L31/042 , H04B3/54 , H02M7/48
CPC分类号： H02M7/44 , H01L31/042 , H02J3/383 , H02J3/385 , H02J13/002 , H02M7/48 , H02S40/32 , H04B3/542 , Y02E10/563 , Y02E10/58 , Y02E40/72 , Y02E60/7815 , Y04S10/123 , Y04S40/121
摘要： A DC-to-AC converter receives a DC power generated from a solar panel and converts the received DC power into an AC power outputted through a power line. The DC-to-AC converter includes a signal input port for externally connecting an environment sensing apparatus. The environment sensing apparatus senses environment conditions around the solar panel and produces an analog sensing signal. The DC-to-AC converter receives the analog sensing signal, converts the analog sensing signal into a digital sensing signal, and outputs the digital sensing signal the power line. A micro inverter is composed of the DC-to-AC converter and the solar panel, and the micro inverter is constructed in the solar photovoltaic system, thus eliminating unnecessary hardware devices.
摘要翻译： DC-AC转换器接收从太阳能电池板产生的直流电力，并将接收到的直流电力转换为通过电力线输出的交流电力。 DC-AC转换器包括用于外部连接环境感测装置的信号输入端口。环境感测装置感测太阳能电池板周围的环境条件并产生模拟感测信号。 DC-AC转换器接收模拟感测信号，将模拟感测信号转换为数字感测信号，并将数字感应信号输出到电力线。微逆变器由DC-AC转换器和太阳能电池板组成，微逆变器构建在太阳能光伏系统中，从而消除了不必要的硬件设备。

10. 发明授权

US11515795B2 Power apparatus applied in solid state transformer structure and three-phase power system having the same 有权
公开(公告)号：US11515795B2
公开(公告)日：2022-11-29
申请号：US16863318
申请日：2020-04-30
申请人： DELTA ELECTRONICS, INC.
发明人： Sheng-Hua Li , Wen-Lung Huang
IPC分类号： H02M3/335 , H02M3/158 , H02M1/00 , H02M7/02 , H02M3/24 , H02J3/38 , H02J7/00
摘要： A power apparatus applied in a solid state transformer structure includes an AC-to-DC conversion unit, a first DC bus, and a plurality of bi-directional DC conversion units. First sides of the bi-directional DC conversion units are coupled to the first DC bus. Second sides of the bi-directional DC conversion units are configured to form at least one second DC bus, and the number of the at least one second DC bus is a bus number. The bi-directional DC conversion units receive a bus voltage of the first DC bus and convert the bus voltage into at least one DC voltage, or the bi-directional DC conversion units receive at least one external DC voltage and convert the at least one external DC voltage into the bus voltage.

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