公开(公告)号：US20220291294A1

公开(公告)日：2022-09-15

申请号：US17406644

申请日：2021-08-19

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chien-Yu TSENG ,  Yu-Xiang ZHENG ,  Wen-Cheng HSIEH

IPC: G01R31/52 ,  G01R27/18 ,  G01R27/02 ,  B60L3/00

Abstract: An insulation resistance detection system for an electric vehicle is used to detect a positive insulation resistance between a positive electrode of a battery of the electric vehicle and an equipment grounding point, and detect a negative insulation resistance between a negative electrode of the battery and the equipment grounding point. The insulation resistance detection system includes a negative detection circuit, a positive detection circuit, and a control unit. The control unit controls the negative detection circuit to be charged to generate a first capacitor voltage, and controls the positive detection circuit to be charged to generate a second capacitor voltage. The control unit determines whether the negative insulation resistance is abnormal according to the first capacitor voltage and a battery voltage of the battery, and determines whether the positive insulation resistance is abnormal according to the second capacitor voltage and the battery voltage.

公开(公告)号：US20130300381A1

公开(公告)日：2013-11-14

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: 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 o 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。 电流检测模块用于对实际的输入电流波形进行采样。 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。