发明名称 |
Power supply device capable of detecting disconnection of ground line |
摘要 |
<p>A power supply device includes negative-side and positive-side battery blocks serially connected to each other through a resistor element 19. The ends of the element 19 correspond to reference and auxiliary ground points 8A and 8B. A voltage detector 3 detects the voltages of battery modules 2 of a load-driving battery 1. The detector 3 includes an asymmetric resistor circuit that is asymmetrically constructed with respect to the reference point 8A. The detector 3 detects the voltage of the auxiliary point 8B with respect to the reference point 8A in a load driven state. A disconnection detecting circuit 20 compares the detected voltage with a reference voltage of the auxiliary point 8B with respect to the reference point 8A not in the load driven state, and determines that the line 9 is disconnected in the load driven state if the deviation of the detected voltage from the reference voltage falls out of a predetermined range.</p> |
申请公布号 |
EP2402773(A2) |
申请公布日期 |
2012.01.04 |
申请号 |
EP20110005307 |
申请日期 |
2011.06.29 |
申请人 |
SANYO ELECTRIC CO., LTD. |
发明人 |
HASHIMOTO, MASAHIKO;NISHIMURA, MASATO |
分类号 |
G01R31/02 |
主分类号 |
G01R31/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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