Delta Electronics (Shanghai) Co., Ltd

Delta Electronics, Inc.

Weiqiang Zhang

Jianping Ying

Lizhi Xu

Yu Wang

Yicong Xie

Lin Lan

Hongyang Wu

Weiyi Feng

Wei Zhou

Yan Zhong

Yuanyuan Zhong

Peng Ma

Tao Wang

Shouyu Hong

Hong Tao Liu

Cheng Lu

Ching-Ho Chou

Haibin Xu

Ziying Zhou

Quanliang Zhang

Chao Ji

Shiqiang Hao

Hongyao Liu

Baoyu Liu

Jing Rong

Xin Li

Hong Liu

Wei Guan

Ganyu Zhou

Liping Sun

Weicheng Zhou

Baihui Song

Xingkuan Guo

Xin Zou

Desheng Guo

Xibing Ding

Xin Chen

Sanyuan Ouyang

Yuechao Li

Hsiang-Chen Wu

Zhenqing Xu

Jie Dong

Shuzhu Su

An insulation device includes an insulating part, and at least one conductive part located on at least one surface of the insulating part, wherein the at least one surface of the insulating part facing the at least one conductive part has central concave shape. A longitudinal section of the at least one conductive part includes a straight portion in the middle and two curved portions extending outwardly from both ends of the straight portion. The curved portions satisfy:

Insulation device and electrical device having the same

A shielding-type insulation detection structure includes an input power source, a first shielding layer, a second shielding layer, a first impedance unit, a second impedance unit and a detection circuit. The first shielding layer is electrically connected with a first terminal of the input power source. The second shielding layer includes a first sub-layer and a second sub-layer. The insulation layer is disposed between the first shielding layer and the second shielding layer. The first impedance unit is electrically connected between the first sub-layer and a second terminal of the input power source. The second impedance unit is electrically connected between the second sub-layer and the second terminal of the input power source. The detection circuit is used to detect a detection signal related to a voltage difference between the first sub-layer and the second sub-layer of the second shielding layer.

Shielding-type insulation detection structure

The disclosure discloses a power supply system and a power supply method. The power supply system includes a first sub-system including at least two first power supply devices and a first load, the first power supply devices for powering the first load; a second sub-system including a second power supply device and a second load, the second power supply device for powering the second load; and a connection unit configured to control electrical connection or electrical disconnection between the first power supply devices and the second load; wherein power supply availability of the first sub-system is higher than power supply availability of the second sub-system. The disclosure provides more power supply availabilities through few types of power supply structures, which facilitates application scenarios such as data center to flexibly adjust the power supply structures according to business, and save cost.

Power supply system and power supply method

The present disclosure provides a circuit module and a solid-state transformer system. The circuit module includes: a first circuit unit outputting a first voltage; a second circuit unit outputting a second voltage, where the second voltage is less than the first voltage; and a shielding structure arranged between the first circuit unit and the second circuit unit, where the shielding structure includes: a first conductor layer electrically coupled to the first circuit unit, a second conductor layer electrically coupled to the second circuit unit, a third conductor layer located between the first conductor layer and the second conductor layer; a first insulation layer arranged between the first conductor layer and the third conductor layer; and a second insulation layer arranged between the second conductor layer and the third conductor layer.

Circuit module and solid-state transformer system

The disclosure provides a compressing structure for compressing a component, a power module and a method for compressing a component inside a chamber, the compressing structure is provided for compressing a component onto a fixed plate and comprises a plate-shaped structure, the component is secured to a first side of the plate-shaped structure, the outside of the plate-shaped structure is provided with a base; at least a steering compressing member is provided between a second side of the plate-shaped structure and the base, and mounted on the second side of the plate-shaped structure or the base, the steering compressing member is provided for transforming an rotational motion into a translational motion; and at least a positioning device mounted on the side of the plate-shaped structure and the base. The compressing structure provided by the disclosure compresses the component onto the fixed plate.

Compressing structure, power module and a method for compressing a component inside a chamber

The present application provides a power supply apparatus, a three-phase power supply system and a control method, including N modules, where N is a positive integer greater than or equal to 2, and each module includes: a transformer, including a primary winding and a first secondary winding; and a first switch unit connected to the first secondary winding of the transformer, where primary windings of transformers of the N modules are connected in series, the first switch unit operates in one of a bypass mode, an open-circuit mode and a modulation mode, an output of each module is controlled by the first switch unit, so as to make the power supply apparatus provide voltages of different amplitudes according to power demand, and transformers with large volume and heavy weight, such as a centralized line frequency transformer or a multiple-winding transformer, are no longer required.

Power supply apparatus, three-phase power supply system and control method

A power module and a carrier board are disclosed. The carrier board includes a circuit board body and a prefabricated substrate. The circuit board body includes a wiring layer. The prefabricated substrate is embedded in the circuit board body and includes an insulation layer and a metal layer, the metal layer is disposed on the insulation layer. The insulation layer is formed by a ceramic material. The metal layer is connected to the insulation layer through a sintering process. A surface of the insulation layer, which has contact with the at least one metal layer, has at least a part exposed outside of the at least one metal layer, the part of the insulation layer exposed to the outside of the at least one metal layer is an outer edge portion, and the outer edge portion is extended into the circuit board body along a horizontal direction.

Carrier board and power module using same

A power conversion system includes N power converters. Each power converter includes an input terminal, a first output terminal and a second output terminal. Each of the N power converters receives a DC power through the input terminal. The first output terminal of a first power converter and the second output terminal of an N-th power converter are connected in parallel to form an N-th total output terminal. The first output terminal of an i-th power converter and the second output terminal of an (i−1)-th power converter are connected in parallel to form an (i−1)-th total output terminal. The two input terminals of the load are connected with two total output terminals of N total output terminals. A (2k−1)-th power converter is connected with a first power source. A 2k-th power converter is connected with a second power source. The redundancy of the power conversion system can be achieved.

Power conversion system with N power converters

The invention discloses a power module and a power conversion device. The power module includes a primary converting unit including a first active device unit; a secondary converting unit including a second active device unit; a transformer including a primary unit connected to the primary converting unit and a secondary unit connected to the secondary converting unit; a first heat dissipating unit on which the primary unit and the first active device unit are disposed; a second heat dissipating unit on which the secondary unit and the second active device unit are disposed; and an insulating plate including an insulating plate body and a semi-conducting layer disposed on a surface of the insulating plate body.

Power module and power conversion device

The present disclosure relates to the field of power electronics, and proposes a power conversion system, including a power cabinet, a first divider and a plurality of power modules. The power cabinet includes a first high voltage compartment and a first low voltage compartment. The first divider is arranged in the power cabinet, and extends along a height direction of the power cabinet to separate the first high voltage compartment and the first low voltage compartment. The plurality of power modules are arranged in the power cabinet, each power module includes a high voltage input terminal and a low voltage output terminal; the high voltage input terminal is arranged in the first high voltage compartment, and the low voltage output terminal is arranged in the first low voltage compartment.

Power conversion system

The present invention provides a driving device and a control method. The driving device is configured to drive a power switch and includes a power supply, a first bridge arm coupled to the power supply, a second bridge arm coupled in parallel to the first bridge arm, and a resonant inductor. The first bridge arm includes a first switch and a second switch connected to a first midpoint, the second bridge arm comprises a first semiconductor element and a second semiconductor element connected to a second midpoint, and the resonant inductor is coupled between the first midpoint and the second midpoint. The control method includes turning on the first switch for a first period such that the power supply charges a gate electrode of the power switch; and in response to a decrease of a current of the resonant inductor to a first threshold value, turning on the first switch again for a second period such that a potential of the first midpoint is equal to a potential of the second midpoint.

Driving device and control method

The present disclosure provides a transformer including at least one magnetic core each having at least one window; one primary side winding passing through the at least one window, a wire forming the primary side winding being sequentially covered with a first solid insulating layer, a grounded shielding layer and a second solid insulating layer from inside to outside along a radial direction of the wire, the grounded shielding layer being connected to a reference ground; and at least one secondary side winding, each passing through the at least one window, the primary side winding having a first voltage with respect to the reference ground, the secondary side winding having a second voltage with respect to the reference ground, and the second voltage being greater than 50 times of the first voltage.

Transformer

Embodiments of the present disclosure provide an insulation monitoring device applied to a power system and a power system. The power system includes at least one power electronic converter module. The insulation monitoring device includes an insulation component, a signal source, an impedance module, and a monitoring module. The insulation component at least partially wraps around the power electronic converter module. The signal source is electrically coupled to a circuit node in the power electronic converter module, the impedance module is connected between the signal source and the insulation component, and the monitoring module is configured to monitor an insulation resistance value of the insulation component, so that an insulation state of the power electronic converter module may be determined.

Insulation monitoring device applied to power system and power system

A power conversion system comprises a plurality of power modules, each including a power input end; a charging input end; a power output end; at least one power conversion unit, each including an AC/DC conversion unit and at least one DC-Bus capacitor and being connected to the power input end and the power output end; and a pre-charging unit connected to the charging input end for receiving direct current and connected to the DC-Bus capacitor. The pre-charging unit starts to charge the DC-Bus capacitor of one of the power modules when said power module breaks down or the load of the power conversion system is light so that no current flows through the AC/DC conversion unit. The power input ends of the power modules are connected in series and then connected to an AC power source, and the power output ends of the power modules are connected in parallel.

Power conversion system with dc-bus pre-charge

The present disclosure relates to the field of power electronics technology, and proposes a power module, including: a case and an isolating part disposed in the case; a first air duct and a second air duct stacked to each other, separated by the isolating part, and penetrated in a front-to-rear direction in the case; a high-voltage power unit; a low-voltage power unit; and a transformer, including a high-voltage portion and a low-voltage portion, wherein the high-voltage portion includes a first magnetic core and a high-voltage coil disposed on the first magnetic core, and the low-voltage portion includes a second magnetic core and a low-voltage coil disposed on the second magnetic core, wherein the high-voltage power unit and the high-voltage portion are disposed in the first air duct, and the low-voltage power unit and the low-voltage portion are disposed in the second air duct.

Power module

Growing community of inventors

Shanghai, China

Weiqiang Zhang