公开(公告)号：US08937826B2

公开(公告)日：2015-01-20

申请号：US13665089

申请日：2012-10-31

Applicant: Delta Electronics, Inc.

Inventor： Te-Wei Yuan ,  Yi-Kai Chou ,  Chien-Yu Tseng ,  Yu-Jen Chen

IPC: H02M5/42 ,  G05F1/70 ,  H02J3/01

CPC classification number: G05F1/70 ,  H02J3/01 ,  H02M1/4225 ,  Y02B70/123 ,  Y02B70/126 ,  Y02P80/112

Abstract: A power converter apparatus for driving an electronic load is disclosed. The power converter apparatus includes a rectifier module, an active switch unit, a driving module, an input voltage detection module, an output voltage detection module, a current detection module and a digital processor module. The active switch unit is shunt connected to the electronic load. The input voltage detection module is used for sampling out an input sampled voltage waveform. The output voltage detection module is used for sampling out an output sampled voltage waveform. The current detection module is used for sampling out a practical input current waveform. The digital processor module generates a current reference command according to the input sampled voltage waveform and the output sampled voltage waveform. The digital processor module dynamically switches the active switch unit according to the current reference command and the practical input current waveform.

Abstract translation: 公开了一种用于驱动电子负载的电力转换装置。 电力转换装置包括整流模块，有源开关单元，驱动模块，输入电压检测模块，输出电压检测模块，电流检测模块和数字处理器模块。 有源开关单元分流连接到电子负载。 输入电压检测模块用于采样输入采样电压波形。 输出电压检测模块用于采样输出采样电压波形。 电流检测模块用于取出实际的输入电流波形。 数字处理器模块根据输入的采样电压波形和输出采样电压波形产生电流参考指令。 数字处理器模块根据当前参考命令和实际输入电流波形动态切换有源开关单元。

公开(公告)号：US11133770B2

公开(公告)日：2021-09-28

申请号：US16900326

申请日：2020-06-12

Applicant: Delta Electronics, Inc.

Inventor： Yi-Jan Chang ,  Yi-Kai Chou ,  Po-Sung Chiang ,  Chien-Hao Chen

IPC: H02P29/024

Abstract: A motor drive system and a control method are provided. The motor drive system is electrically connected to a motor. The motor drive system includes two safe torque off (STO) modules to achieve a two-channel STO redundancy infrastructure, so as to improve the safety of the motor drive system. In addition, the motor drive system includes a diagnosis module to diagnose malfunction of the STO modules. It ensures the STO modules to meet the related safety requirements.

公开(公告)号：US09653987B2

公开(公告)日：2017-05-16

申请号：US14995722

申请日：2016-01-14

Applicant: DELTA ELECTRONICS, INC.

Inventor： Te-Wei Yuan ,  Yu-Ling Lee ,  Yi-Kai Chou ,  Bo-Jheng Lin

IPC: H02M1/36 ,  H02M1/32 ,  H02M5/42 ,  H02H7/122 ,  H02H3/05 ,  H02H9/00

CPC classification number: H02M1/36 ,  H02H3/05 ,  H02H7/122 ,  H02H9/002 ,  H02M1/32 ,  H02M5/42

Abstract: A method for detecting failure of soft start includes: connecting a variable frequency device to a load; detecting an energy storage unit at a first voltage level; generating an output current to the load; detecting the energy storage unit changed from the first voltage level into a second voltage level; generating a reference voltage value according to the output current and determining whether a voltage difference value between the first voltage level and the second voltage level is larger than the reference voltage value; determining whether a voltage peak-to-peak value of the energy storage unit is smaller than a set value by the controller if the voltage difference value is larger than the reference voltage value; and controlling the inverter circuit to stop outputting the output current to the load if the voltage peak-to-peak value is smaller than the set value.

公开(公告)号：US10794938B2

公开(公告)日：2020-10-06

申请号：US16056503

申请日：2018-08-06

Applicant: DELTA ELECTRONICS, INC.

Inventor： Yi-Kai Chou ,  Yi-Jan Chang

IPC: G01R17/06 ,  H02M1/36 ,  G01R19/00 ,  G01R15/04 ,  H02M7/06 ,  H02M1/32 ,  H02M5/458

Abstract: A voltage detecting circuit includes a rectifying circuit, a voltage dividing circuit, and a comparing circuit. The rectifying circuit is configured to rectify a plurality of AC phase voltages to output a plurality of rectified voltages respectively. The voltage dividing circuit is configured to divide the plurality of rectified voltages respectively to output a plurality of sampling voltages. The comparing circuit is configured to compare the plurality of sampling voltages with a reference voltage respectively to provide a plurality of corresponding phase failure detecting voltages. On the condition that the AC phase voltages are unbalanced, the phase failure detecting voltage switches between a high level and a low level.

公开(公告)号：US09848518B2

公开(公告)日：2017-12-19

申请号：US13854356

申请日：2013-04-01

Applicant: DELTA ELECTRONICS, INC.

Inventor： Te-Wei Yuan ,  Hsueh-Kuo Liao ,  Yi-Kai Chou ,  Ming-Yuan Tsai ,  Wei-Hao Chi

IPC: H05K7/00 ,  H05K7/20 ,  H01L25/16 ,  H01L23/049 ,  H05K1/14

CPC classification number: H05K7/209 ,  H01L23/049 ,  H01L25/162 ,  H01L25/165 ,  H01L2924/0002 ,  H01L2924/19107 ,  H05K1/145 ,  H01L2924/00

Abstract: An integrated power module packaging structure includes a plastic housing having a cavity; a plurality of step-shaped pins embedded in the plastic housing, a first printed circuit board disposed in the cavity, and a second printed circuit board disposed above the first printed circuit board in the cavity. Each of the step-shaped pins includes a first L-shaped bending portion and a second L-shaped bending portion connected to each other. The first printed circuit board is disposed with at least a power device and is electrically connected to at least a part of the first L-shaped bending portions. Two opposite surfaces of the second printed circuit board are respectively disposed with at least an electronic device, and the second printed circuit board is electrically connected to at least a part of the second L-shaped bending portions.