发明授权
- 专利标题: Insulation detection circuit and detection method thereof for two-way on-board charger
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申请号: US16857482申请日: 2020-04-24
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公开(公告)号: US11604217B2公开(公告)日: 2023-03-14
- 发明人: Jun Liu , Yingying Feng , Jinzhu Xu , Yuanzhao Zhang
- 申请人: SHENZHEN VMAX NEW ENERGY CO., LTD.
- 申请人地址: CN Guangdong
- 专利权人: SHENZHEN VMAX NEW ENERGY CO., LTD.
- 当前专利权人: SHENZHEN VMAX NEW ENERGY CO., LTD.
- 当前专利权人地址: CN Guangdong
- 代理机构: Locke Lord LLP
- 代理商 Tim Tingkang Xia, Esq.
- 优先权: CN201811347609.0 20181113
- 主分类号: G01R31/12
- IPC分类号: G01R31/12 ; G01R27/26 ; G01R27/18
摘要:
The present invention discloses an insulation detection circuit and a detection method thereof for a two-way on-board charger. The detection circuit comprises an inverter circuit, a first Y capacitor connected between an output live line and a ground line of the inverter circuit, a second Y capacitor connected between an output neutral line and the ground line of the inverter circuit, a live line sampling circuit and a neutral line sampling circuit which are connected with the output live line and the output neutral line of the inverter circuit, and a controller. The controller determines an insulation state of the two-way on-board charger according to two sampling voltages.
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